BROTHER HL 4000CN User Manual

Brother Color Laser Printer  
SERVICE MANUAL  
MODEL: HL-4000CN  
Read this manual thoroughly before maintenance work.  
Keep this manual in a convenient place for quick and easy reference at all times.  
January 2002  
SM-PRN027  
PREFACE  
This service manual contains basic information required for after-sales service of the color laser  
printer (here-in-after referred to as "this machine" or "the printer"). This information is vital to the  
service technician to maintain the high printing quality and performance of the printer.  
This service manual covers the HL-4000CN color laser printer.  
This manual consists of the following chapters:  
CHAPTER I :  
CHAPTER II :  
SPECIFICATIONS  
Specifications, etc.  
INSTALLATION  
Installation conditions and installation procedures.  
CHAPTER III : STRUCTURE OF SYSTEM COMPONENTS  
Basic operation of the mechanical system, the electrical system and the electrical  
circuits and their timing information.  
CHAPTER IV : ASSEMBLY / DISASSEMBLY  
Procedures for replacement of the mechanical system parts.  
CHAPTER V : TROUBLESHOOTING  
Description of error messages on the control panel, troubleshooting image  
failure, etc.  
CHAPTER VI : DIAGRAMS  
CHAPTER VII : PLUG / JACK (P/J) CONNECTOR LOCATIONS  
Information in this manual is subject to change due to improvement or re-design of the product. All  
relevant information in such cases will be supplied in service information bulletins (Technical  
Information).  
A thorough understanding of this printer, based on information in this service manual and service  
information bulletins, is required for maintaining its print quality performance and for improving the  
practical ability to find the cause of problems.  
CONTENTS  
CHAPTER I SPECIFICATIONS ........................................................I-1  
1. PRODUCT NAME ............................................................................................ I-1  
2. DIMENSIONS / WEIGHT (MAIN UNIT)............................................................ I-1  
3. SPACE REQUIREMENTS ............................................................................... I-1  
4. PRINTER SYSTEM CONFIGURATION........................................................... I-2  
4.1. Outline of the Printer.............................................................................................................I-2  
4.2. IOT Function Outline.............................................................................................................I-3  
4.3. ESS Standard Configuration.................................................................................................I-4  
5. OPTIONAL PRODUCTS .................................................................................. I-5  
6. SYSTEM CHARACTERISTICS........................................................................ I-6  
6.1 Operation Modes ...................................................................................................................I-6  
6.2 Throughput.............................................................................................................................I-7  
6.3 FPOT .....................................................................................................................................I-7  
6.4 Continuous Printing Speed ....................................................................................................I-7  
6.5 Warm-up Time .......................................................................................................................I-8  
7. PRINT FUNCTION ........................................................................................... I-8  
7.1 Image Area ............................................................................................................................I-8  
7.2 Internal Fonts.........................................................................................................................I-8  
7.3 True Type Fonts...................................................................................................................I-11  
8. IMAGE PROCESSING FUNCTIONS ............................................................. I-12ꢀ  
8.1 Color/Monochrome Specification.........................................................................................I-12  
8.2 Paper Type Selection...........................................................................................................I-12  
8.3 Toner Save ..........................................................................................................................I-12  
8.4 Color Matching.....................................................................................................................I-12  
8.5 Image Adjustment................................................................................................................I-12  
8.6 Color Adjustment .................................................................................................................I-12  
8.7 Automatic Image Quality Correction ....................................................................................I-12  
8.8 Recommended Image Quality Modes..................................................................................I-12  
8.9 Profile Specification .............................................................................................................I-13  
9. IMAGE ADDITION FUNCTION ...................................................................... I-14ꢀ  
9.1 Watermark ...........................................................................................................................I-14  
10. PAGE LAYOUT FUNCTIONS ...................................................................... I-14ꢀ  
10.1 Reverse Print .....................................................................................................................I-14  
10.2 Zoom..................................................................................................................................I-14  
10.3 Multiple Page .....................................................................................................................I-14  
10.4 Margin Shift........................................................................................................................I-14  
10.5 Poster.................................................................................................................................I-14  
10.6 Booklet Printing..................................................................................................................I-14  
11. PAGE OUTPUT SEQUENCE CONTROL FUNCTIONS .............................. I-14  
11.1 Stacking .............................................................................................................................I-14  
11.2 Collating.............................................................................................................................I-14  
12. SEPARATOR ............................................................................................... I-15ꢀ  
12.1 Banner Sheet.....................................................................................................................I-15  
13. JOB CONTROL............................................................................................ I-15ꢀ  
13.1 Print Abortion .....................................................................................................................I-15  
13.2 Forced Ejection..................................................................................................................I-15  
13.3 Job Timeout .......................................................................................................................I-15  
13.4 Job Recovery.....................................................................................................................I-15  
14. OTHER FUNCTIONS................................................................................... I-15ꢀ  
14.1 User Job Registration Function..........................................................................................I-15  
14.2 Billing Count Function........................................................................................................I-15  
14.3 Toner Level Display ...........................................................................................................I-15  
14.4 Job Log Function ...............................................................................................................I-16  
14.5 Reception Limit (IP Filter Function)....................................................................................I-16  
15. UTILITY PRINT ............................................................................................ I-16ꢀ  
15.1 Printer Setting List..............................................................................................................I-16  
15.2 Panel Setting List...............................................................................................................I-16  
15.3 Font List .............................................................................................................................I-16  
15.4 Job Log Print......................................................................................................................I-16  
15.5 Color Registration Correction Chart...................................................................................I-16  
16. HOST INTERFACE ...................................................................................... I-17ꢀ  
16.1 Client Hardware .................................................................................................................I-17  
16.2 Client OS............................................................................................................................I-17  
16.3 Server OS ..........................................................................................................................I-17  
17. IEEE1284 ..................................................................................................... I-17ꢀ  
17.1 Connector ..........................................................................................................................I-17  
17.2 IEEE1284 Support .............................................................................................................I-17  
18. ETHERNET.................................................................................................. I-17ꢀ  
18.1 Connector ..........................................................................................................................I-17  
18.2 Printing Protocols...............................................................................................................I-18  
18.3 Management Protocols......................................................................................................I-19  
18.4 USB....................................................................................................................................I-20  
19. UTILITY SOFTWARE................................................................................... I-20ꢀ  
19.1 Printer Drivers/Installers.....................................................................................................I-20  
19.2 BLP (LPR)..........................................................................................................................I-20  
19.3 BNT (NetBIOS) ..................................................................................................................I-20  
19.4 BRAdmin Pro .....................................................................................................................I-20  
20. PAPER HANDLING...................................................................................... I-21ꢀ  
20.1 Paper Feed ........................................................................................................................I-21  
20.2 Output Tray........................................................................................................................I-22  
20.3 Duplex................................................................................................................................I-22  
20.4 Handling of Other Paper ....................................................................................................I-22  
20.5 Summary of Prohibited Conditions ....................................................................................I-22  
21. OPERATING SUPPLY VOLTAGE ............................................................... I-23  
22. RATED POWER CONSUMPTION............................................................... I-23ꢀ  
23. NOISE .......................................................................................................... I-24ꢀ  
24. FIRMWARE UPDATE FUNCTION............................................................... I-24ꢀ  
25. TOOLS AND SERVICE CONSUMABLES.................................................... I-24ꢀ  
25.1 Tools ..................................................................................................................................I-24  
25.2 Service Consumables........................................................................................................I-24  
26. CONSUMABLES.......................................................................................... I-24ꢀ  
27. SOFTWARE RELATED INFORMATION...................................................... I-25ꢀ  
27.1 Menu Tree (User Mode).....................................................................................................I-25  
CHAPTER II INSTALLATION ..........................................................II-1  
1. INSTALLATION PROCEDURE....................................................................... II-1  
1.1. Checking the Packaged Items .............................................................................................II-2  
1.2. Removing the Tapes from the Printer..................................................................................II-3  
1.3. Removing the Paper Tray Protective Materials ...................................................................II-4  
1.4. Mounting the Print Head Cartridge ......................................................................................II-6  
1.5. Mounting the Toner Cartridge..............................................................................................II-9  
1.6. Mounting the Transfer Roll Cartridge.................................................................................II-12  
1.7. Loading Paper....................................................................................................................II-14  
1.8. Connecting the Power Cable .............................................................................................II-18  
1.9. Correcting the Color Registrations.....................................................................................II-20  
CHAPTER III STRUCTURE OF SYSTEM COMPONENTS.............III-1  
1. PRINTING PROCESS.................................................................................... III-1  
1.1 Summary of Printing Process ..............................................................................................III-1  
1.2 Schematic Diagram for Printing Process .............................................................................III-3  
1.3 Description of Printing Process Techniques........................................................................III-4  
2. FLOW OF PRINT DATA............................................................................... III-17  
2.1 Data Flow...........................................................................................................................III-17  
3. DRIVE TRANSMISSION ROUTE................................................................. III-18  
3.1 Main Drive ASSY ...............................................................................................................III-18  
3.2 DEVE Drive ASSY .............................................................................................................III-19  
3.3 Holder Toner Cartridge ASSY (Y, M, C, K)........................................................................III-19  
3.4 Fuser Drive ASSY..............................................................................................................III-20  
3.5 Motor ASSY DUP...............................................................................................................III-20  
3.6 Gear Layout .......................................................................................................................III-21  
4. PAPER TRANSFER..................................................................................... III-22  
4.1 Paper Transfer Route (without option)...............................................................................III-22  
4.2 Layout of Paper Transfer Route.........................................................................................III-23  
5. FUNCTIONS OF MAJOR FUNCTIONAL COMPONENTS........................... III-24  
5.1 Paper Cassette ..................................................................................................................III-25  
5.2 Paper Feeder.....................................................................................................................III-26  
5.3 Housing ASSY Retard .......................................................................................................III-28  
5.4 Front ASSY In....................................................................................................................III-29  
5.5 Chute ASSY Out................................................................................................................III-30  
5.6 Chute ASSY Exit................................................................................................................III-32  
5.7 Transfer Roll Cartridge ASSY & Fuser ..............................................................................III-33  
5.8 Xerographics......................................................................................................................III-35  
5.9 Toner Cartridge ASSY .......................................................................................................III-37  
5.10 Frame & Drive..................................................................................................................III-39  
5.11 Electrical ..........................................................................................................................III-40  
6. MODES ........................................................................................................ III-42  
6.1 Print Mode..........................................................................................................................III-42  
6.2 Operation Modes ...............................................................................................................III-42  
7. CONTROL.................................................................................................... III-43  
7.1 Control of Paper Size.........................................................................................................III-43  
7.2 Selective Control on Paper Pick-up Unit............................................................................III-43  
7.3 Scanner Light Quantity Control..........................................................................................III-43  
7.4 Process Control .................................................................................................................III-43  
7.5 Color Registration Control..................................................................................................III-47  
7.6 Transfer Roll Cartridge Unit ASSY Control........................................................................III-48  
7.7 Toner Control.....................................................................................................................III-49  
7.8 Fuser Control .....................................................................................................................III-50  
CHAPTER IV ASSEMBLY / DISASSEMBLY................................. IV-1  
1. BEFORE STARTING DISASSEMBLY ...........................................................IV-1  
1.1 Precautions......................................................................................................................... IV-1  
1.2 Fuser ASSY Removal......................................................................................................... IV-2  
1.3 Transfer ASSY Removal..................................................................................................... IV-3  
1.4 Controller Board Removal................................................................................................... IV-4  
1.5 Description of Procedures................................................................................................... IV-5  
2. DISASSEMBLY PROCEDURE ......................................................................IV-6ꢀ  
2.1 Cover of the Printer............................................................................................................. IV-6  
2.2 Front of the Printer............................................................................................................ IV-16  
2.3 Top of the Printer .............................................................................................................. IV-40  
2.4 Right / Left / PCBs of the Printer....................................................................................... IV-47  
2.5 Paper Feed of the Printer.................................................................................................. IV-58  
CHAPTER V TROUBLESHOOTING............................................... V-1  
1. PREFACE .......................................................................................................V-1  
1.1 Troubleshooting Procedure.................................................................................................. V-1  
1.2 Note on Troubleshooting...................................................................................................... V-1  
2. LEVEL 1 TROUBLESHOOTING .....................................................................V-3  
2.1 Level 1 FIP........................................................................................................................... V-3  
3. LEVEL 2 TROUBLESHOOTING .....................................................................V-4  
3.1 Fail Code List....................................................................................................................... V-4  
3.2 Fail FIP............................................................................................................................... V-14  
4. HOW TO USE DIAG. (C/E) MODE................................................................V-39  
4.1 Roles of the Control Panel in Diag. (C/E) Mode ................................................................ V-39  
4.2 Entering Diag. (C/E) Mode................................................................................................. V-39  
4.3 Exiting Diag. (C/E) Mode ................................................................................................... V-39  
4.4 Diag. (C/E) Mode Functions............................................................................................... V-39  
4.5 Operation Procedure.......................................................................................................... V-40  
4.6 Diag. Mode Menu Tree ...................................................................................................... V-41  
4.7 ESS Diagnosis................................................................................................................... V-43  
4.8 IOT Diagnosis .................................................................................................................... V-44  
4.9 Installation Setting.............................................................................................................. V-51  
4.10 Test Print.......................................................................................................................... V-52  
4.11 Parameter Setting............................................................................................................ V-53  
4.12 Information Print............................................................................................................... V-55  
5. DIAGNOSIS FOR STANDALONE PRINTER................................................V-56  
5.1 General .............................................................................................................................. V-56  
5.2 Printing Method.................................................................................................................. V-56  
5.3 Test Print Pattern............................................................................................................... V-57  
6. NVM LIST......................................................................................................V-58  
7. HEX/DEC CONVERSION TABLE.................................................................V-67  
8. IMAGE QUALITY TROUBLE ENTRY CHART ..............................................V-69  
9. IMAGE QUALITY SPECIFICATIONS............................................................V-70  
9.1 Parallelism ......................................................................................................................... V-70  
9.2 Diagonal............................................................................................................................. V-70  
9.3 Skew .................................................................................................................................. V-70  
9.4 Straightness....................................................................................................................... V-71  
9.5 Magnification Error............................................................................................................. V-71  
9.6 Registration........................................................................................................................ V-71  
9.7 Guaranteed Printing Area .................................................................................................. V-72  
10. TEST PRINT ...............................................................................................V-73  
10.1 Test print.......................................................................................................................... V-73  
11. IMAGE QUALITY FIP..................................................................................V-74  
11.1 Notes on Image Quality Trouble Check........................................................................... V-74  
11.2 Basic Rule of Image Quality Adjustment.......................................................................... V-74  
11.3 Troubleshooting Table by Trouble Phenomena............................................................... V-75  
CHAPTER VI DIAGRAMS.............................................................. VI-1  
1.PREFACE .......................................................................................................VI-1  
1.1 How to Use the BSD........................................................................................................... VI-1  
1.2 Explanations of Symbols..................................................................................................... VI-1  
1.3 Signal Name ....................................................................................................................... VI-4  
1.4 DC Voltage.......................................................................................................................... VI-4  
1.5 Input/Output Test ................................................................................................................ VI-4  
2. BSD (BLOCK SCHEMATIC DIAGRAM)  
CHAPTER VII PLUG/JACK (P/J) CONNECTOR LOCATIONS .... VII-1  
1. LIST OF P/J...................................................................................................VII-1ꢀ  
1.1 Base Engine....................................................................................................................... VII-1  
1.2 2 Tray Module.................................................................................................................... VII-3  
2. P/J LAYOUT DIAGRAM ................................................................................VII-4ꢀ  
2.1 IOT Top.............................................................................................................................. VII-4  
2.2 IOT Front/RH ..................................................................................................................... VII-5  
2.3 MCU and HVPS PWB/ESS PWB....................................................................................... VII-6  
2.4 Tray 1................................................................................................................................. VII-7  
2.5 2 Tray Module.................................................................................................................... VII-8  
REGULATIONS  
LASER SAFETY (FOR 120 V MODEL ONLY)  
This printer is certified as a Class I laser product under the U.S. Department of Health and  
Human Services (DHHS) Radiation Performance Standard according to the Radiation  
Control for Health and Safety Act of 1968. This means that the printer does not produce  
hazardous laser radiation.  
Since radiation emitted inside the printer is completely confined within protective housings  
and external covers, the laser beam cannot escape from the machine during any phase of  
user operation. However, the machine contains 5-milliwat, 700-800 nanometer wavelength,  
GaAIAs laser diodes. Direct (or indirect reflected) eye contact with the laser beam might  
cause serious eye damage. Safety precautions and interlock mechanisms have been  
designed to prevent any possible laser beam exposure to the operator.  
FDA REGULATIONS (FOR 120 V MODEL ONLY)  
U.S. Food and Drug Administration (FDA) has implemented regulations for laser products  
manufactured on and after August 2, 1976. Compliance is mandatory for products  
marketed in the United States. The label shown on the back of the printer indicates  
compliance with the FDA regulations and must be attached to laser products marketed in  
the United States.  
MANUFACTURED:  
BROTHER INDUSTRIES, LTD.  
15-1 Naeshiro-cho, Mizuho-ku, Nagoya, 467-8561 Japan  
This product complies with FDA radiation performance standards, 21 CFR  
Subchapter J.  
Caution:  
Use of controls, adjustments or the performance of procedures other than those specified  
in this manual may result in hazardous radiation exposure.  
i
IEC 60825 SPECIFICATION (FOR 220-240 V MODEL ONLY)  
This printer is a Class 1 laser product as defined in IEC 60825 specifications. The label  
shown below is attached in countries where required.  
CLASS 1LASER PRODUCT  
APPAREIL Å LASER DE CLASSE 1  
LASER KLASSE 1 PRODUKT  
This printer has a Class 3B Laser Diode which emits invisible laser radiation in the Scanner  
Unit. The Scanner Unit should not be opened under any circumstances.  
Caution: Use of controls, adjustments or the performance of procedures other than  
those specified in this manual may result in hazardous radiation exposure.  
For Finland and Sweden  
LUOKAN 1 LASERLAITE  
KLASS 1 LASER APPARAT  
Varoitus! Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa  
altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.  
Varning – Om apparaten används på annat sätt än i denna Bruksanvisning specificerats,  
kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass  
1.  
Internal laser radiation  
Max. Radiation Power  
Wave Length  
10 mW  
770 nm-808 nm  
Laser Class  
Class IIIb (Accordance with 21 CFR Part 1040.10)  
Class 3B (Accordance with IEC60825)  
ii  
SAFETY  
To prevent possible accidents during maintenance operation, you should observe strictly  
the "Warning" and "Caution" information in this manual.  
Dangerous operations and operations out of range of this manual should be absolutely  
avoided.  
Generally various processes not covered by this manual may be required in actual  
operation, which should be performed carefully always giving attention to safety.  
Caution  
Use of controls or adjustment or performance of procedures other than those specified in  
this manual might result in hazardous radiation exposure.  
Disconnect device  
This printer must be installed near a power outlet that is easily accessible. In case of  
emergencies, you must disconnect the power cord from the power outlet to shut off the  
power completely.  
Caution for batteries  
Do not replace the battery. There is a danger of explosion if the battery is incorrectly  
replaced. Do not disassemble, recharge or dispose of inby fire. Used batteries should be  
disposed of according to local regulations.  
iii  
Power Source  
Keep the power supply off during maintenance operation to prevent electric shock, burns  
and other damages. Keep the power plug disconnected during the maintenance operation.  
If the power supply should be kept connected for measurement of voltage or other similar  
reasons, sufficient care should be given to prevent electric shock, by following the  
procedures of this manual.  
WARNING  
While the printer is ON, never touch live parts if not required absolutely.  
WARNING  
Power is supplied to the power switch / inlet (LVPS ASSY) even while the printer is off.  
Never touch its live components.  
WARNING  
Do not touch live parts unless otherwise specified.  
Driving Units  
When servicing gears or other driving units, be sure to turn them OFF and plug off. Drive  
them manually when required.  
WARNING  
Never touch the gears or other driving units while the printer is running.  
iv  
High-temperature Units  
When servicing high-temperature units (securing unit, etc.), be sure to turn them OFF to  
prevent burns, injuries and other troubles, remove the power plug and start service  
processes after they have cooled down enough.  
WARNING  
Immediately after completion of operation, they are still hot. Start services after more than  
40 minutes.  
Laser Beams  
WARNING  
xꢀ If your eyes are exposed to laser beams, you may lose your eyesight.  
xꢀ Never open the cover if warning label for laser beams is attached there.  
xꢀ Before disassembling and reassembling this laser printer, be sure to turn it OFF.  
xꢀ When servicing this laser printer while it is running, be sure to follow the procedures  
specified in this manual.  
xꢀ You should understand the features of the laser beams which are capable of having an  
injurious action on the human body, not to extend the danger over the workers as well  
as other people around the printer.  
Note:  
I Laser beams have features as follows:  
Frequencies are smaller in width than other beams (sun and electric bulbs) and phases  
are uniform so that high monochromatic and convergence performance can be obtained  
and thin beams of light can reach places at a long distance.  
Due to the high convergence, beams are concentrated in high density and high  
temperature, which is dangerous to human body.  
Reference: Laser beams of this laser printer is invisible rays which you cannot see.  
Scanner ASSY  
Print Head Cartridge ASSY  
v
Warning/Caution Labels  
Warning labels and caution labels are attached to this laser printer to prevent accidents  
check those labels for their peeling or stain when servicing the printer.  
< Caution label for high-temperature units >  
Unpacking the Printer  
WARNING  
The printer must be carried horizontally with two or more persons.  
CAUTION  
Extreme care must be taken to avoid personal injuries.  
Check visually the printer for evidence of any damages.  
Peel all tapes off the printer.  
Remove protection parts (2 pieces) from the paper tray.  
vi  
ACRONYMS  
In this manual, the manual specific acronyms are used in addition to the generally used  
ones. The table below contains typical acronyms that are used throughout this manual.  
ADC  
AUX.  
BCR  
BUR  
CCW  
CLN  
CR  
Automatic Density Control  
Auxiliary  
AG  
Analog Ground  
Black and White  
Cartridge  
B/W  
CART.  
CL.  
Bias Charge Roll  
Back Up Roll  
Clutch  
Counter Clock Wise  
Cleaning (or Cleaner)  
Charge Roll  
CLK  
CRU  
CW  
DTS  
FDR  
FRU  
I/F  
Clock  
Customer Replaceable Unit  
Clock Wise  
CRUM  
DB  
CRU Monitor  
Detack Saw  
Developing Bias  
Frame Ground  
Feeder  
FG  
Field Replaceable Unit  
Interface  
Hex  
Hexadecimal  
IDT  
Intermediate Drum Transfer  
ID  
Image Density  
(or Identification)  
Low Paper  
L/H  
Left Hand  
L/P  
LD  
Laser Diode  
LEF  
Long Edge Feed  
Normal Force  
Non Volatile Memory  
Paper Handling  
Prints Per Minute  
Printed Wiring Board  
Registration  
MSI  
Multi Sheet Inserter  
No Paper  
N/F  
N/P  
NVM  
P/H  
OPC  
PCDC  
Pixel  
PV  
Organic Photo Conductor  
Pixel Count Dispense Control  
Picture Cell  
PPM  
PWB  
REGI.  
RTN  
SG  
Print Volume  
R/H  
Right Hand  
Return  
SEF  
SNR  
SOS  
SYNC.  
TC  
Short Edge Feed  
Sensor  
Signal Ground  
Solenoid  
SOL.  
SPI  
Start Of Scan  
Scans Per Inch  
Take Away  
Synchronous  
T/A  
Toner Concentration  
Transfer  
TEMP.  
TRANS.  
YMCBk  
Temperature  
TR  
Transport  
WDD  
XERO.  
Wide Range Dynamic Damper  
Xerographic  
Yellow, Magenta, Cyan, Black  
vii  
Service call procedures  
1. Notes Before Work  
1.1 Safety notes  
To prevent an accident during maintenance, follow warnings and precautions strictly.  
Avoid dangerous work.  
1. Power supply  
To prevent an electric shock, burn, or injury, turn off the power and unplug the  
power cable before maintenance work. If it is inevitable to keep the power on for  
voltage measurement, take the greatest care not to receive an electric shock.  
2. Drive  
Never inspect or lubricate drive components such as gears when the machine is in  
operation.  
3. Heavy parts  
The machine weighs 35.3 kg. When lifting the machine, get a firm footing and  
bend your knees to avoid possible injuries to your back.  
4. Safety devices  
Ensure the safety functions of safety devices for preventing mechanical accidents  
(fuses, circuit breakers, and interlock switches) and for safe user operations  
(panels and covers). Do not make mechanical alterations that may impair the  
safety functions.  
5. Parts mounting and removal  
Parts and covers may have sharp edges. Do not touch the edges readily. If your  
fingers or hands become greasy, wipe off the grease well. Do not pullout a part  
cable forcibly but gradually.  
6. Specified tool  
Follow instructions if a tool is specified.  
7. Organic solvents  
Use the drum cleaner and other organic solvents carefully with the following notes  
in mind:  
Keep the room well ventilated not to breathe in vapor a lot or continuously.  
The solvents are inflammable liquids. Do not put them close to or into a fire or  
do not heat their containers.  
Avoid storing the solvents near a naked fire or sparks because they may catch  
fire.  
8. Irregular use of machine  
When altering the machine, submit an application for irregular use in advance.  
viii  
1.2 Other notes  
Do maintenance work correctly and efficiently with the following notes in mind:  
1. Reference materials  
Read the related technical information (SB, FTI, FTO and so on) well and do  
maintenance work systematically.  
2. Disassembling  
Before removing parts for disassembling, check the normal mounting status in  
advance.  
3. Mounting and adjustment  
Do not start up the machine immediately after finishing part mountings and  
adjustments. Check that there are no tools or parts left inside the machine or on  
assy.  
4. Handling of replaced parts and consumables  
Do not discard of replaced parts and consumables at the customer site.  
After replacing the following consumables, be sure to attach the U tag to the  
replaced one and recover.  
Drum cartridge  
Color toner cartridges  
As to parts to be recycled, enter necessary data into the U tag and recover the  
parts.  
5. General Notes  
Be careful not to disturb the customer's daily work.  
Color toner dropped on the floor is hardly cleaned. Place the drop cloth on the  
floor when maintaining the inside of the machine to protect carpets and floors.  
Puts wastes, consumables, and replaced parts into a plastic or paper bag and  
obtain the permission of the customer to throw them away.  
Be sure to enter the field work contents and the replaced consumables and parts  
into the Machine Log Book.  
HL-4000CN weighs 35.3 kg.  
When moving the equipment, make sure that there are two or more persons carrying it.  
For details, see the installation procedure on page II-1.  
ix  
2. Workflow in the Field  
< Initial Actions >  
1. Question the Customer for details about the system malfunction.  
2. Note down the meter count.  
3. Inspect the rejected print and determine the machine condition.  
4. Check the Machine Log Book.  
< For UM visit >  
1. Perform the Level 1 troubleshooting.  
2. Perform the troubleshooting.  
3. Print any Internal Test Pattern to check the print quality. (See page V-51)  
4. Feed paper from each tray, and clean or replace the feed role as required.  
5. Repair any secondary problems that would prevent the machine from running.  
6. Perform the trim activities.  
< For SM visit >  
1. Print any Internal Test Pattern to check the print quality. (See page V-51)  
2. Feed paper from each tray, and clean or replace the feed role as required.  
3. Repair any secondary problems that would prevent the machine from running.  
4. Perform the trim activities.  
< Final Actions >  
1. Check the machine overall operation and function.  
2. Check the machine appearance and consumables.  
3. Perform the operator training as required.  
4. Record the performed action in the Machine Log Book and Service Report.  
5. Store the sample printouts in the Machine Log Book.  
x
3. Trim Activity  
Trim activities for HL-4000CN should be made within every SM/UM, mainly for  
maintaining the machine performance. There is no service call performed only for the  
trim activity.  
3.1 Trim activity procedure  
1. Check the overall operation before performing the trim activity.  
Print any Internal Test Pattern to output three patterns: all colors of 20 % each,  
halftone and grid.  
All colors of 20 % each: IBT belt, scratches on the drum surface, and fusing  
problem are checked.  
Halftone pattern: Low density area reproduction problem, color balance and fusing  
problem are checked.  
Grid pattern: Color registration problem and fusing problem are checked.  
* See page V-51 for test pattern output method.  
2. Clean the interior of the machine.  
Clean toner contamination and paper dust in the paper path area.  
(Operator area should be cleaned carefully.)  
3. Check the periodic replacement parts(consumable parts). Replace as required.  
4. Safety check.  
Check the Power Cord for damage or loose connection.  
5. After 1 to 4 above completes, do the following overall operation checks.  
Machine operation  
Print quality  
Meter reading  
3.2 Mechanical consumables and periodic replacement parts  
A mechanical consumable should be replaced after checking the printed sheets  
count during trim action.  
<Mechanical consumables>  
Consumable  
Product Code  
Number of sheets that can be  
printed*1  
Black Toner Cartridge  
Cyan Toner Cartridge  
Magenta Toner Cartridge  
Yellow Toner Cartridge  
Print Head Cartridge  
Transfer Roll Cartridge  
(with Toner Collector Bottle)  
*1: Condition  
TN-11BK  
TN-11C  
TN-11M  
TN-11Y  
PH-11CL  
TR-11CL  
8.5K  
6K  
6K  
6K  
30K  
25K  
Paper size: A4 or LETTER  
Toner coverage: 5%  
Ratio of B/W to color: 1: 1  
Average number of sheets printed at onetime: 4 sheets  
<Parts for periodic replacement>  
Consumable  
Fuser Unit  
Retard Roll  
Replacement interval  
100K prints  
100K prints  
Remarks  
xi  
3.3 Trim checklist  
C: Check and if necessary clean, replace, or replenish.  
A: Always check and clean.  
R: Replace at specified intervals.  
* See page V-51 for the test pattern output method.  
No. Work item  
Each 100K Rep &  
Description  
time  
Adj No.  
1.1 Check before work  
(Mechanical noise  
check)  
C
- Start up the machine to see that no  
abnormal noise occurs  
1.2 Check before work  
(Test pattern output)  
C
- Output the internal test patterns to check  
the print quality.  
(Check uneven darkness, deletion, and  
drum of belt damage with each 20%  
pattern and reproducibility of low darkness  
with the document reproducibility pattern.)  
- Clean any loose toner and paper dust from  
the paper transport path and jam sensors.  
2
Cleaning inside the  
machine  
(Paper transport  
system cleaning)  
Retard Roll  
C
A
R
R
- Clean especially the operator area.  
- Check and clean the MSI field roll.  
3.1 Fuser ASSY  
- Check that the H. Roll and P. Roll are not  
scratched.  
Replace them when necessary.  
3.2 Print Head Cartridge  
A
C
30K  
18K  
- Visual check only. Do not touch.  
- Visual check only. Do not touch.  
3.3 Transfer Roll  
Cartridge Unit ASSY  
4
Safety check  
A
- Check the power plug for loose connection.  
- Check the power cable for crack or  
explosion of its conductor.  
- Check that the extension cable of an  
insufficient capacity or a nonstandard  
power cable (ex. table tap) is not used.  
- Check that the power cable is not  
connected to the same outlet as some  
other cables.  
5.1 Check after work  
(Print quality check)  
C
C
- Output the internal test patterns to see that  
the print quality satisfies the standards.  
5.2 Check after work  
(Machine operation  
check)  
- Check paper feed and noise.  
5.3 Check after work  
C
- Create Machine Log Book and a service  
report.  
CAUTION  
Do not touch the print head cartridge or transfer roll cartridge unit directly by hand.  
Do not use a drum cleaner or other solvents. (It will take time for the machine to recover.)  
xii  
CHAPTER I  
SPECIFICATIONS  
CONTENTS  
CHAPTER I SPECIFICATIONS........................................................I-1  
1. PRODUCT NAME............................................................................................I-1  
2. DIMENSIONS / WEIGHT (MAIN UNIT)...........................................................I-1  
3. SPACE REQUIREMENTS...............................................................................I-1  
4. PRINTER SYSTEM CONFIGURATION ..........................................................I-2  
4.1 Outline of the Printer.............................................................................................................. I-2  
4.2 IOT Function Outline.............................................................................................................. I-3  
4.3 ESS Standard Configuration.................................................................................................. I-4  
5. OPTIONAL PRODUCTS..................................................................................I-5  
6. SYSTEM CHARACTERISTICS .......................................................................I-6  
6.1 Operation Modes ................................................................................................................... I-6  
6.2 Throughput............................................................................................................................. I-7  
6.3 FPOT ..................................................................................................................................... I-7  
6.4 Continuous Printing Speed .................................................................................................... I-7  
6.5 Warm-up Time....................................................................................................................... I-8  
7. PRINT FUNCTION...........................................................................................I-8  
7.1 Image Area ............................................................................................................................ I-8  
7.2 Internal Fonts......................................................................................................................... I-8  
7.3 True Type Fonts................................................................................................................... I-11  
8. IMAGE PROCESSING FUNCTIONS.............................................................I-12  
8.1 Color/Monochrome Specification......................................................................................... I-12  
8.2 Paper Type Selection........................................................................................................... I-12  
8.3 Toner Save .......................................................................................................................... I-12  
8.4 Color Matching..................................................................................................................... I-12  
8.5 Image Adjustment................................................................................................................ I-12  
8.6 Color Adjustment ................................................................................................................. I-12  
8.7 Automatic Image Quality Correction .................................................................................... I-12  
8.8 Recommended Image Quality Modes.................................................................................. I-12  
8.9 Profile Specification ............................................................................................................. I-13  
9. IMAGE ADDITION FUNCTION......................................................................I-14  
9.1 Watermark ........................................................................................................................... I-14  
10. PAGE LAYOUT FUNCTIONS......................................................................I-14  
10.1 Reverse Print ..................................................................................................................... I-14  
10.2 Zoom.................................................................................................................................. I-14  
10.3 Multiple Page ..................................................................................................................... I-14  
10.4 Margin Shift........................................................................................................................ I-14  
10.5 Poster................................................................................................................................. I-14  
10.6 Booklet Printing.................................................................................................................. I-14  
11. PAGE OUTPUT SEQUENCE CONTROL FUNCTIONS..............................I-14  
11.1 Stacking ............................................................................................................................. I-14  
11.2 Collating ............................................................................................................................. I-14  
12. SEPARATOR...............................................................................................I-15  
12.1 Banner Sheet ..................................................................................................................... I-15  
13. JOB CONTROL............................................................................................I-15  
13.1 Print Abortion ..................................................................................................................... I-15  
13.2 Forced Ejection.................................................................................................................. I-15  
13.3 Job Timeout ....................................................................................................................... I-15  
13.4 Job Recovery..................................................................................................................... I-15  
14. OTHER FUNCTIONS ..................................................................................I-15  
14.1 User Job Registration Function.......................................................................................... I-15  
14.2 Billing Count Function ........................................................................................................ I-15  
14.3 Toner Level Display ........................................................................................................... I-15  
14.4 Job Log Function ............................................................................................................... I-16  
14.5 Reception Limit (IP Filter Function).................................................................................... I-16  
15. UTILITY PRINT............................................................................................I-16  
15.1 Printer Setting List.............................................................................................................. I-16  
15.2 Panel Setting List ............................................................................................................... I-16  
15.3 Font List ............................................................................................................................. I-16  
15.4 Job Log Print...................................................................................................................... I-16  
15.5 Color Registration Correction Chart................................................................................... I-16  
16. HOST INTERFACE......................................................................................I-17  
16.1 Client Hardware ................................................................................................................. I-17  
16.2 Client OS............................................................................................................................ I-17  
16.3 Server OS .......................................................................................................................... I-17  
17. IEEE1284.....................................................................................................I-17  
17.1 Connector .......................................................................................................................... I-17  
17.2 IEEE1284 Support ............................................................................................................. I-17  
18. ETHERNET..................................................................................................I-17  
18.1 Connector .......................................................................................................................... I-17  
18.2 Printing Protocols............................................................................................................... I-18  
18.3 Management Protocols...................................................................................................... I-19  
18.4 USB.................................................................................................................................... I-20  
19. UTILITY SOFTWARE ..................................................................................I-20  
19.1 Printer Drivers/Installers..................................................................................................... I-20  
19.2 BLP (LPR).......................................................................................................................... I-20  
19.3 BNT (NetBIOS) .................................................................................................................. I-20  
19.4 BRAdmin Pro ..................................................................................................................... I-20  
20. PAPER HANDLING .....................................................................................I-21  
20.1 Paper Feed ........................................................................................................................ I-21  
20.2 Output Tray........................................................................................................................ I-22  
20.3 Duplex................................................................................................................................ I-22  
20.4 Handling of Other Paper .................................................................................................... I-22  
20.5 Summary of Prohibited Conditions .................................................................................... I-22  
21. OPERATING SUPPLY VOLTAGE...............................................................I-23  
22. RATED POWER CONSUMPTION ..............................................................I-23  
23. NOISE..........................................................................................................I-24  
24. FIRMWARE UPDATE FUNCTION ..............................................................I-24  
25. TOOLS AND SERVICE CONSUMABLES...................................................I-24  
25.1 Tools .................................................................................................................................. I-24  
25.2 Service Consumables........................................................................................................ I-24  
26. CONSUMABLES .........................................................................................I-24  
27. SOFTWARE RELATED INFORMATION.....................................................I-25  
27.1 Menu Tree (User Mode)..................................................................................................... I-25  
CHAPTER I SPECIFICATIONS  
1. PRODUCT NAME  
Product Name  
Product Code  
Model  
2. DIMENSIONS / WEIGHT (MAIN UNIT)  
Width (mm) Depth (mm) Height (mm)  
Weight (kg)  
35.5kg or less (with CRU)  
439  
590*  
445  
*: with the manual tray folded  
3. SPACE REQUIREMENTS  
The printer has vents on the sides and the rear. Install the printer with clearances of 150  
cm on the right, 100 cm on the left, and 200 cm on the rear.  
100mm  
200mm  
600mm  
150mm  
I-1  
4.  
PRINTER SYSTEM CONFIGURATION  
4.1  
Outline of the Printer  
1) Host computer  
The target host is a personal computer (PC98, IBM PC-AT compatible, or Macintosh)  
connected directly and also through a network.  
2) ESS  
The ESS interprets print information (control code data, character code data,  
graphics data, and image data) sent from the host computer into video data and  
sends it to the IOT.  
3) IOT  
The ESS prints received video data for viewing. This unit uses the A4-size 600/1200  
dpi laser xerography system.  
Host  
Computer  
Network  
IEEE1284 or USB1.1  
ESS  
IOT  
Control Panel  
Power Source  
AC  
I-2  
4.2  
IOT Function Outline  
Configuration  
Contents  
Recording section  
- Color 16PPM, Monochrome 16PPM  
- 600dpi (standard speed), 1200dpi (half speed)  
Recording System  
- OPC drum, 4-tandem cartridges , electro-photographic system  
using intermediate transfer rolls  
- 2-component  
Developer  
- Chemical toner (black, yellow, magenta, cyan)  
- Semiconductor laser, simultaneous scanning by 4 beams  
- Heat fusing of the free belt nip system  
Toner  
Exposure System  
Fusing System  
CRU  
(consumables)  
- Black toner cartridge  
- Yellow toner cartridge  
- Magenta toner cartridge  
- Cyan toner cartridge  
- Drum cartridge  
- Transfer roll cartridge  
Paper Source  
- Internal 500 sheets feeder unit  
- MSI unit (100 sheets)  
- 500 sheets x 2 feeder unit (optional)  
Paper Exit  
Duplex  
- Face down output tray (250 sheets)  
- Internal Duplex  
Control Panel  
- LCD: 16 digits x two rows  
- Button: 8  
- LED: 5  
- MIMIC: supported  
LVPS  
- 100/120/220 VAC, 50/60Hz power source  
I-3  
4.3  
ESS Standard Configuration  
Item  
Contents  
CPU  
QED RM5261A 350MHz  
RAM: Standard 64MB, 320MB max  
Memory  
One 144pin SO-DIMM slot installed  
ROM: 4MB Flash ROM (On Board) (for program)  
8MB Mask ROM (On Board) (for fonts)  
HDD: For electronial sorting: 10GB or more IDE HDD (optional)  
External Interface  
Network Protocol  
- Parallel connection interface  
: IEEE1284-compliant (compatible, nibble, ECP)  
- USB1.1  
- Network connection interface  
: 100BASE-TX supported (10BASE-T compatible)  
- LPD  
- Port9100  
- IPP  
- FTP (only for firmware update)  
- NetWare (SPX/IPX)  
(with optional network expantion card installed)  
- Apple Talk (Ether Talk)  
(with optional network expantion card installed)  
- SMB over TCP/IP  
(with optional network expantion card installed)  
- SMB over NetBEUI  
(with optional network expantion card installed)  
- DHCP  
- HTTP (EWS)  
- SNMP  
I-4  
5.  
OPTIONAL PRODUCTS  
No.  
1
Product Name  
2 Tray Module  
Hard Disk  
Product Code  
LT-40CL  
Remarks  
2
HD-40CL  
3
4
5
6
7
8
9
I-5  
6. SYSTEM CHARACTERISTICS  
6.1  
Operation Modes  
The printer has the following modes:  
1) Running Mode: The printer is running and recording.  
Held at the operating temperature  
Fusing system  
Exposure system  
Recording system  
Fuser fan  
Rear fan  
LVPS  
Rotating at the running speed  
Operating  
Rotating at high speed  
Rotating at high speed  
Normal mode  
2) Ready Mode: The printer is ready to print.  
Fusing system  
Held at the standby temperature  
Paused  
Exposure system  
Recording system  
Fuser fan  
Rear fan  
LVPS  
Paused  
Rotating at half speed  
Rotating at half speed  
Normal mode  
3) Low Power Mode (Light Sleep Mode):  
If no print data is received for a specified time, the printer changes to this mode to  
save power.  
Paused  
Fusing system  
Exposure system  
Recording system  
Fuser fan  
Paused  
Paused  
Paused  
Paused  
Rear fan  
Normal mode  
LVPS  
4) Power Save Mode (Deep Sleep Mode):  
If no print data is received for a specified time in Low Power Mode, the printer  
changes to this mode to save more power. As to the power supply to IOT, the VPS  
output is totally blocked and only the power to the ESS network function section is  
supplied.  
Paused  
Fusing system  
Exposure system  
Recording system  
Fuser fan  
Paused  
Paused  
Paused  
Paused  
Rear fan  
Power save mode  
LVPS  
I-6  
6.2  
6.3  
6.4  
Throughput  
Throughput is the time from when a print instruction is issued from the printer driver until  
when the last print is output to the output tray, excluding the process control time.  
(OS: Win98, Measuring chart: JEIDA J11, Paper source: Tray 1)  
PDL  
Paper  
A4  
Paper Type  
Color  
Throughput  
63 sec. max  
63 sec. max  
120 sec. max  
120 sec. max  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Color  
PCL6  
A4  
Black & White  
Color  
A4  
PS3  
A4  
Black & White  
FPOT  
FPOT is the time from when a print instruction is issued from the printer driver until when  
the first print is output to the output tray, excluding the process control time.  
(OS: Win98, Measuring chart: JEIDA J11, Paper source: Tray 1)  
PDL  
Paper  
A4  
Paper Type  
Color  
Throughput  
20 sec. max  
20 sec. max  
20 sec. max  
20 sec. max  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Color  
PCL6  
A4  
Black & White  
Color  
A4  
PS3  
A4  
Black & White  
Continuous Printing Speed  
Printing speed in the same document mode  
(OS: Win98, Measuring chart: Not prescribed, Paper: A4 SEF)  
<PCL6>  
Paper Type  
Paper Source  
Color  
Duplex/Simplex  
Simplex  
Simplex  
Duplex  
Ave. print speed  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Not prescribed Color  
16 ppm or more  
16 ppm or more  
10 ppm or more  
10 ppm or more  
8 ppm or more  
8 ppm or more  
8 ppm or more  
Not prescribed Black & White  
Not prescribed Color  
Not prescribed Black & White  
Duplex  
Thick Paper 1 MP tray  
Thick Paper 1 MP tray  
Transparency MP tray  
Color  
Simplex  
Simplex  
Simplex  
Black & White  
Color  
<PS3>  
Paper Type  
Paper Source  
Color  
Duplex/Simplex  
Simplex  
Simplex  
Duplex  
Ave. print speed  
16 ppm or more  
16 ppm or more  
10 ppm or more  
10 ppm or more  
8 ppm or more  
8 ppm or more  
8 ppm or more  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Plain Paper 1  
Not prescribed Color  
Not prescribed Black & White  
Not prescribed Color  
Not prescribed Black & White  
Duplex  
Thick Paper 1 MP tray  
Thick Paper 1 MP tray  
Transparency MP tray  
Color  
Simplex  
Simplex  
Simplex  
Black & White  
Color  
I-7  
6.5  
Warm-up Time  
Even/state  
Time before Ready state Condition  
At power on  
30 sec. max  
30 sec. max  
Temperature: 22°C  
Humidity: 55%  
When work up from  
Lower Power mode  
Input power: 100/120/220 VAC  
7. PRINT FUNCTION  
7.1  
Image Area  
Size  
Guaranteed image area  
500-sheet universal tray Area excluding a 4-mm margin each from the right. left, top,  
and bottom sides of paper (maximum area of guaranteed  
drawing quality: 207.9 x 347.6 mm = 8.2 x 13.7 inches)  
Paper (900 mm) longer  
than manual feed tray  
The image quality guarantee does not apply to long paper.  
7.2  
Internal Fonts  
<PCL6> 80 Fonts  
Type  
Font  
MicroType Albertus Md, Albertus Extrabold  
MicroType Antique Olive, Antique Olive Italic, Antique Olive Bd  
MicroType Arial, Arial Italic, Arial Bd, Arial Bd It  
MicroType Clarendon Cond  
MicroType Coronet  
MicroType Courier, Courier It, Courier Bd, Courier Bold It  
MicroType Garamond Antiqua, Garamond Kursiv, Garamond Halbfett, Garamond Kurs Halb  
MicroType Letter Gothic, Letter Gothic It, Letter Gothic Bd  
MicroType Marigold  
MicroType CG Omega, CG Omega It, CG Omega Bd, CG Omega Bd It  
MicroType CG Times, CG Times It, CG Times Bd, CG Times Bd It  
MicroType Times New Roman, Times New Roman It, Times New Roman Bd, Times New  
Roman Bd It  
MicroType Univers Md, Univers Md It, Univers Bd, Univers Bd It, Univers Md Cd, Univers  
Md Cd It, Univers Bd Cd, Univers Bd Cd It  
MicroType Avant Garde Book, Avant Garde Bk Obl, Avant Garde Gothic Demi, Avant Garde  
Gothic Demi Obl  
MicroType Bookman Light, Bookman Light It, Bookman Demi, Bookman Demi It  
MicroType Courier*, Courier* Obl, Courier* Bd, Courier* Bd It  
MicroType Helvetica, Helvetica Obl, Helvetica Bd, Helvetica Bd Obl, Helvetica Narrow,  
Helvetica Narrow Obl, Helvetica Narrow Bd, Helvetica Narrow Bd Obl  
I-8  
Type  
Font  
MicroType New Century Schoolbook Rm, New Century Schoolbook It, New Century  
Schoolbook Bd, New Century Schoolbook Bd It  
MicroType Palatino, Palatino It, Palatino Bd, Palatino Bd It  
MicroType Time Roman, Time Italic, Time Bold, Time Bold Italic  
MicroType Zapf Chancery Medium IT, Zapf Dingbats  
MicroType Symbol, SymbolPS  
<PS3> 136 Fonts  
AlbertusMT  
AlbertusMT-Italic  
AlbertusMT-Light  
AntiqueOlive-Italic  
AntiqueOliveCE-Compact  
Apple-Chancery  
Arial-BoldMT  
AntiqueOlive-Bold  
AntiqueOlive-Roman  
AntiqueOliveCE-Italic  
Apple-ChanceryCE  
Arial-ItalicMT  
AntiqueOlive-Compact  
AntiqueOliveCE-Bold  
AntiqueOliveCE-Roman  
Arial-BoldItalicMT  
ArialCE  
ArialCE-Bold  
ArialCE-BoldItalic  
AvantGarde-Book  
AvantGarde-DemiOblique  
AvantGardeCE-Demi  
Bodoni-Bold  
ArialCE-Italic  
ArialMT  
AvantGarde-BookOblique  
AvantGardeCE-Book  
AvantGarde-Demi  
AvantGardeCE-BookOblique  
AvantGardeCE-DemiOblique Bodoni  
Bodoni-BoldItalic  
Bodoni-Italic  
Bodoni-Poster  
Bodoni-PosterCompressed  
BodoniCE-BoldItalic  
BodoniCE  
BodoniCE-Bold  
BodoniCE-Italic  
Bookman-Demi  
BodoniCE- Poster  
BodoniCE-  
PosterCompressed  
Bookman-DemiItalic  
BookmanCE-Demi  
BookmanCE-LightItalic  
ChicagoCE  
Bookman-Light  
BookmanCE-DemiItalic  
Carta  
Bookman-LightItalic  
BookmanCE-Light  
Chicago  
Clarendon  
Clarendon-Bold  
ClarendonCE-Bold  
CooperBlack-Italic  
Coronet-Regular  
Courier-Bold  
Clarendon-Light  
ClarendonCE  
ClarendonCE- Light  
Copperplate-ThirtyThreeBC  
CoronetCE-Regular  
Courier-BoldOblique  
CourierCE-Bold  
CooperBlack  
Copperplate-ThirtyTwoBC  
Courier  
Courier-Oblique  
CourierCE-BoldOblique  
Eurostile-Bold  
CourierCE  
CourierCE-Oblique  
Eurostile-BoldExtendedTwo  
EurostileCE-Bold  
Geneva  
Eurostile  
Eurostile-ExtendedTwo  
EurostileCE  
EurostileCE-  
EurostileCE-ExtendedTwo  
BoldExtendedTwo  
GenevaCE  
GillSans  
GillSans-Bold  
GillSans-BoldCondensed  
GillSans-ExtraBold  
GillSans-BoldItalic  
GillSans-Italic  
GillSans-Condensed  
GillSans-Light  
I-9  
GillSans-LightItalic  
GillSansCE-BoldItalic  
GillSansCE-Italic  
GillSansCE-Roman  
Goudy-BoldItalic  
Helvetica  
GillSansCE-Bold  
GillSansCE-Condensed  
GillSansCE-Light  
Goudy  
GillSansCE-BoldCondensed  
GillSansCE-ExtraBold  
GillSansCE-LightItalic  
Goudy-Bold  
Goudy-ExtraBold  
Helvetica-Bold  
Goudy-Italic  
Helvetica-BoldOblique  
Helvetica-Condensed  
Helvetica-Condensed-Bold  
Helvetica-Condensed-  
BoldObl  
Helvetica-Condensed-  
Oblique  
Helvetica-Narrow  
Helvetica-Narrow-Bold  
Helvetica-Narrow-  
BoldOblique  
Helvetica-Narrow-Oblique  
Helvetica-Oblique  
HelveticaCE  
HelveticaCE-Bold  
HelveticaCE-BoldOblique  
HelveticaCE-CondBoldObl  
HelveticaCE-NarrowBold  
HelveticaCE-Oblique  
HelveticaCE-Cond  
HelveticaCE-CondObl  
HelveticaCE-CondBold  
HelveticaCE-Narrow  
HelveticaCE-NarrowOblique  
HelveticaCE-  
NarrowBoldOblique  
HoeflerText-Black  
HoeflerText-BlackItalic  
HoeflerText-Regular  
HoeflerTextCE-Italic  
JoannaMT-Bold  
HoeflerText-Italic  
HoeflerText-Ornaments  
HoeflerTextCE-BlackItalic  
JoannaMT  
HoeflerTextCE-Black  
HoeflerTextCE-Regular  
JoannaMT-BoldItalic  
JoannaMTCE-Bold  
JoannaMT-Italic  
JoannaMTCE  
JoannaMTCE-BoldItalic  
LetterGothic-Bold  
JoannaMTCE-Italic  
LetterGothic  
LetterGothic-BoldSlanted  
LetterGothicCE-Bold  
LubalinGraph-Book  
LubalinGraph-DemiOblique  
NewCenturySchlbkCE-Bold  
LetterGothic-Slanted  
LetterGothicCE-BoldSlanted  
LubalinGraph-BookOblique  
LubalinGraphCE-Bookjim  
LetterGothicCE  
LetterGothicCE-Slanted  
LubalinGraph-Demi  
NewCenturySchlbk-Roman  
NewCenturySchlbkCE-  
BoldItalic  
NewCenturySchlbkCE-Italic  
NewCenturySchlbkCE-  
Roman  
NewYork  
NewYorkCE  
Optima  
Optima-Bold  
Optima-BoldItalic  
OptimaCE-BoldItalic  
Oxford  
Optima-Italic  
OptimaCE-Italic  
Palatino-Bold  
Palatino-Roman  
PalatinoCE-Italic  
OptimaCE-Bold  
OptimaCE-Roman  
Palatino-BoldItalic  
PalatinoCE-Bold  
PalatinoCE-Roman  
Palatino-Italic  
PalatinoCE-BoldItalic  
StempleGaramond-Bold  
StempleGaramond-Roman  
StempleGaramond-BoldItalic StempleGaramond-Italic  
StempleGaramondCE-Bold  
StempleGaramondCE-  
BoldItalic  
StempleGaramondCE-Italic  
StempleGaramondCE-  
Roman  
Symbol  
I-10  
Tekton  
Times-Bold  
Times-BoldItalic  
TimesCE-Bold  
TimesCE-Roman  
Times-Italic  
Times-Roman  
TimesCE-BoldItalic  
TimesNewRomanCE  
TimesCE-Italic  
TimesNewRomanCE-Bold  
TimesNewRomanCE-  
BoldItalic  
TimesNewRomanCE-Italic  
TimesNewRomanPS-  
BoldItalicMT  
TimesNewRomanPS-BoldMT  
TimesNewRomanPS-  
ItalicMT  
TimesNewRomanPSMT  
Univers  
Univers-Bold  
Univers-BoldExt  
Univers-BoldExtObl  
Univers-CondensedBold  
Univers-Extended  
Univers-BoldOblique  
Univers-Condensed  
Univers-CondensedOblique  
Univers-  
CondensedBoldOblique  
Univers-ExtendedObl  
Univers-Oblique  
Univers-Light  
Univers-LightOblique  
UniversCE-BoldExt  
UniversCE-Condensed  
UniversCE-Bold  
UniversCE-BoldExtObl  
UniversCE-CondensedBold  
UniversCE-BoldOblique  
UniversCE-  
UniversCE-  
CondensedBoldOblique  
CondensedOblique  
UniversCE-Extended  
UniversCE-LightOblique  
Wingdings-Regular  
UniversCE-ExtendedObl  
UniversCE-Medium  
UniversCE-Light  
UniversCE-Oblique  
ZapfChancery-MediumItalic  
ZapfChanceryCE-  
MediumItalic  
ZapfDingbats  
7.3  
True Type Fonts  
Driver display  
Name  
Always use True Type fonts  
(Default)  
Fonts are always downloaded from the PC for printing.  
Substitute with the internal  
font  
Fonts are substituted with internal ones according to the  
font substitution table. The font substitution table can be  
edited to set freely which fonts should be substituted with  
internal ones.  
I-11  
8. IMAGE PROCESSING FUNCTIONS  
8.1  
Color/Monochrome Specification  
The user can select Color, Monochrome, or Auto. If Auto is selected, the printer  
automatically distinguishes each page and prints the page data in colors and  
monochrome.  
8.2  
Paper Type Selection  
The user can select Plain paper 1/Plain paper 2, Transparency, Thick paper 1/Thick  
paper 2, Labels paper, Glossy paper, Postcard, Envelope, Thick paper (Back), Glossy  
paper (Back), Postcard (Back), or Envelope (Back). However, FX full-color OHP (V556)  
transparency is not available.  
8.3  
8.4  
8.5  
8.6  
8.7  
Toner Save  
The toner consumption can be reduced to 70% (reference).  
Color Matching  
This function conforms to Windows ICM 2/Apple Color Sync 2.  
Image Adjustment  
The brightness, contrast, and saturation can be adjusted.  
Color Adjustment  
The RGB intensities can be adjusted individually.  
Automatic Image Quality Correction  
The automatic image quality correction function can be turned ON or OFF. The default is  
OFF.  
8.8  
Recommended Image Quality Modes  
1) Default display  
Mode  
Resolution  
600dpi  
Use and processing  
Standard  
General standard quality  
This mode is suitable for printing ordinary business  
documents. Photos, texts, and graphics are processed in  
optimum ways. The printing speed is the highest in this  
mode. (Default)  
High quality  
600dpi  
General high quality  
This mode is suitable for printing high-quality business  
documents. Photos, texts, and graphics are processed in  
optimum ways.  
High definition 1200dpi  
This mode is suitable for printing documents of mainly  
fine lines. Fine characters, lines, or photo portions are  
reproduced clearly.  
I-12  
2) All display  
Mode  
Resolution  
600dpi  
Use and processing  
For  
transparency  
This mode is suitable for printing OHP transparencies.  
The screen and color conversion for a small number of  
lines reduce IOT defects and make this mode suitable for  
printing on transparencies.  
ICM  
600dpi  
This mode is suitable for color matching with the display  
using ICM.  
readjusted  
(Colorsync for  
Macintosh)  
Toner save  
600dpi  
600dpi  
The toner save function is used in this mode.  
The hue generally goes down but the toner consumption  
is reduced.  
Presentation  
This mode is suitable for printing presentation materials  
by clear color reproduction. In this coherency mode, the  
output hue is the same as those of other models.  
Standard  
(High gloss)  
600dpi  
600dpi  
Glossy prints are output in this standard mode.  
(Plain paper 1/Plain paper 2)  
High quality  
(High gloss)  
Glossy prints are output in this high quality mode.  
(Plain paper 1/Plain paper 2)  
Engine resolution/Speed  
600dpi  
1200dpi  
Paper type  
Image quality mode  
Simplex Duplex Simplex Duplex  
Plain paper 1/ Standard (High gloss)/  
Half  
Half  
Plain paper 2  
High quality (High gloss)  
speed  
speed  
High definition  
Half  
Half  
speed  
speed  
Other modes  
Full  
Full  
(Standard, High quality, etc)  
speed  
speed  
Other paper  
High definition  
Half  
speed  
Other modes  
Half  
(Standard, High quality, etc)  
speed  
8.9  
Profile Specification  
The user can select "Color Temperature/Gamma Specification," "ICC Profile  
Specification," or "No Specification" as a color conversion profile.  
I-13  
9. IMAGE ADDITION FUNCTION  
9.1  
Watermark  
A user-specified or routine character string can be printed as a watermark.  
10. PAGE LAYOUT FUNCTIONS  
10.1 Reverse Print  
The generation of a 180-degree rotated image can be selected. This function is used if a  
desired result cannot be obtained without rotating a generated image because the  
direction of transport is determined (ex. envelope).  
10.2 Zoom  
This printer supports routing printing or printing of a size enlarged or reduced from a  
routine one. The magnification can be set arbitrarily in a range from 25 to 400%.  
10.3 Multiple Page  
The user can specify 2up, 4up, 8up, 16up, or 32up to print a specified number of pages  
together.  
10.4 Margin Shift  
The user can specify the top, bottom, right, and left margins in millimeters.  
10.5 Poster  
A single-page image of up to 6 x 6 in size can be printed 36 times repeatedly on a single  
page.  
10.6 Booklet Printing  
A job consisting of several pages can be printed and stapled at the center of paper to  
form a booklet.  
11. PAGE OUTPUT SEQUENCE CONTROL FUNCTIONS  
11.1 Stacking  
Theoretically this function can print up to 999 copies.  
11.2 Collating  
Theoretically this function can print up to 999 copies.  
When a HDD is mounted, highs-peed collating is possible. Although varying with the  
data compression rate, the number of pages in a copy never exceeds 1,000.  
I-14  
12. SEPARATOR  
12.1 Banner Sheet  
A banner sheet can be inserted at the beginning or end of a job. The document name,  
port name, or other is printed in monochrome. However, the MAC driver does not  
support the banner at the end.  
13. JOB CONTROL  
13.1 Print Abortion  
From the control panel, the current job can be aborted (discarded).  
13.2 Forced Ejection  
This function forcibly prints and ejects received data if data reception from the host is  
awaited in the middle of job processing.  
13.3 Job Timeout  
If job transfer is interrupted for a specified time (changeable or settable to infinite from  
the control panel), the data is discarded as an error.  
13.4 Job Recovery  
A job may fail due to a paper jam. In this case, the job is automatically executed once  
released.  
14. OTHER FUNCTIONS  
14.1 User Job Registration Function  
Various print settings can be registered in a printer driver with arbitrary names for calling.  
14.2 Billing Count Function  
This function counts normally printed pages. If enabled in the C/E diag. setting, the user  
can check the count from the control panel. This is disabled at shipping from the factory.  
Counters  
Count contents  
Color print counter  
Monochrome print counter  
Total print counter  
Counts color prints. (7 digits)  
Counts monochrome prints. (7 digits)  
Counts both color and monochrome prints. (7 digits)  
14.3 Toner Level Display  
The short-of-toner status can be displayed by CentreWare Internet Services.  
I-15  
14.4 Job Log Function  
This function can hold and print up to 22 job logs. Log data can also be printed  
immediately from the panel or automatically when the log count has reached the  
maximum limit.  
The log contents are as follows:  
Job submission date and time  
Input interface (Centronics, lpd, etc)  
Data type (XPL)  
Document name (file name)  
User name/host name  
Number of pages used (color/monochrome)  
Number of sides used (color/monochrome)  
Size of paper used (color/monochrome)  
Result (normal termination, error, etc)  
Other (title, total print count, rights, etc)  
14.5 Reception Limit (IP Filter Function)  
LPD, Port9100, and IPP can permit or prohibit job acceptance to a set IP.  
15. UTILITY PRINT  
15.1 Printer Setting List  
A printer setting list can be printed from the panel. The list is printed on A4 paper in  
monochrome by automatic tray selection.  
15.2 Panel Setting List  
A panel setting list can be printed from the panel. The list is printed on A4 paper in  
monochrome by automatic tray selection.  
15.3 Font List  
A font list can be printed from the panel. The list is printed on A4 paper in monochrome  
by automatic tray selection. YMCK color patterns are printed on the list.  
15.4 Job Log Print  
Job log data can be printed immediately from the panel or automatically. The data is  
printed on A4 paper in monochrome by automatic tray selection.  
15.5 Color Registration Correction Chart  
Two kinds of color registration correction charts can be printed. One is the main scan  
correction chart and the other is the subscan correction chart. The user can print the  
main scan correction chart but the subscan correction chart is for a customer engineer.  
I-16  
16. HOST INTERFACE  
16.1 Client Hardware  
Hardware  
Conditions of guarantee  
PC-AT compatible  
(DOS/V)  
A model where Windows 95/98/ME, 2000/XP, or NT4.0 is  
guaranteed to run  
PC98 Series  
A model sold in November 1993 or later with a two-way parallel  
interface where Windows 95/98/ME, 2000/XP, or NT4.0 is  
guaranteed to run  
Macintosh  
A model where MAC OS 8.1 to 9.1,OSX 10.1 is guaranteed to run  
16.2 Client OS  
Client OS  
Driver  
Direct print  
utility  
Network utility SNN  
Windows  
Supported  
Supported  
Supported  
Supported  
95/98/98ME  
Windows NT4.0  
Supported  
Supported  
Supported  
Supported  
Supported  
Supported  
Windows 2000/XP  
MAC OS 8.1 to 9.1 Supported  
16.3 Server OS  
Windows NT 4.0 Server  
Windows 2000 Server  
NetWare 3.12J/3.2J/4.1J/4.11J/4.2J/5J  
Windows 95/98/ME (Printer shared)  
17. IEEE1284  
17.1 Connector  
Amphenol 36-pin  
17.2 IEEE1284 Support  
The printer supports IEEE1284 (compatible, nibble, ECP mode). If the host computer  
does not support IEEE1284, the two-way function cannot be used.  
18. ETHERNET  
The printer can be connected to either 100BASE-TX or 10BASE-T by automatic or  
manual switching. The physical specifications conform to the IEEE802.3 standards.  
18.1 Connector  
RJ-45  
I-17  
18.2 Printing Protocols  
The standard printing protocols are LPD, Port9100, IPP, FTP and the optional ones are  
SMB, NetWare, and EtherTalk.  
1) Standard  
Supported  
Protocol  
Transport Max  
Supported OS  
Session  
LPD  
TCP/IP  
TCP/IP  
1
Win95/98/Me  
WinNT4.0  
Win2000 (usually lprand Sizeless lpr)  
Port9100  
IPP  
1
Win95/98/Me  
Win2000/XP  
TCP/IP  
TCP/IP  
3
1
Windows Me, Win2000  
FTP (only for  
[Client]  
firmware update)  
Win95/98/Me, WinNT4.0, Win2000/XP  
2)  
Option  
Supported  
Protocol  
Transport  
Max  
Session  
Supported OS  
SMB  
TCP/IP  
NetBEUI  
5
1
Win95/98/Me, WinNT4.0  
Win2000  
NetWare  
NCP/IPX  
NetWare 3.12J/3.2J/4.1J/4.11J/4.2J/5J  
(PServer mode)  
NDS support)  
SPX/IPX  
(Nprint mode)  
EtherTalk  
(PAP)  
ATP/DDP  
1
MAC OS 8.1 to 9.1,  
OpenTransport1.1.2 or later  
I-18  
18.3 Management Protocols  
The printer supports SNMP and http ((Web base management) as the management  
protocols. DHCP is also supported as automatic IP address setting.  
1) Standard  
Supported  
Protocol  
Transport  
Support  
SNMP  
UDP/IP  
[Supported MIB]  
MIB-II (RFC1213)  
Host Resources MIB (RFC1514)  
Printer MIB (RFC1759)  
IPX (option)  
XCMI Communication Config MIB (V2.4)  
XCMI Job Monitoring MIB (V2.4)  
[Manager]  
Network utility, DocuHouse, PrintXchange  
http  
TCP/IP  
[Client]  
(Windows 95/98/Me/NT4.0/2000/XP)  
Netscape Communicator 4.06 or later  
Internet Explorer 4.01 or later  
(Web base  
management)  
(MacOS OS8.1 - 9.1,OpenTransport1.1.2 or later)  
Netscape Communicator 4.06 or later  
Internet Explorer 4.01 or later  
DHCP  
IPP  
UDP/IP  
[Supported OS]  
Windows NT 4.0 Server  
Windows 2000 Server  
TCP/IP  
Windows2000/XP  
(Number of  
session: 5)  
2)  
Option  
Supported  
Protocol  
Transport  
Max Supported OS  
Session  
5
SMB  
TCP/IP  
NetBEUI  
Win95/98/Me, WinNT4.0  
Win2000  
NetWare  
NCP/IPX  
1
NetWare 3.12J/3.2J/4.1J/4.11J/4.2J/5J  
(PServer mode)  
NDS support)  
SPX/IPX  
(Nprint mode)  
EtherTalk  
(PAP)  
ATP/DDP  
1
MAC OS 8.1 to 9.1,  
OpenTransport1.1.2 or later  
I-19  
18.4 USB  
The printer conforms to USB Ver.1.1.  
1) Connector  
4-pin, B connector  
2) Supported OS  
Windows 98/ME, Windows 2000/XP  
Mac OS 8.6 to 9.1  
Preinstalled version  
* Windows version: Post Launch  
19. UTILITY SOFTWARE  
19.1 Printer Drivers/Installers  
Printer drivers for Windows 95/98/ME, Windows NT4.0, Windows 2000, and Mac OS 8.1  
to 9.1 are prepared.  
19.2 BLP (LPR)  
Utilities for Windows 95/98/ME are prepared for peer-to-peer network printing.  
19.3 BNT (NetBIOS)  
Utilities for Windows 95/98/ME,NT4.0, 2000, XP are prepared for peer-to-peer network  
printing.  
19.4 BRAdmin Pro  
Various network settings are permitted.  
I-20  
20. PAPER HANDLING  
20.1 Paper Feed  
1) Tray 1  
The 500-sheet universal tray can be mounted.  
2) Trays 2 and 3 (Option)  
The 500-sheet universal tray can be mounted each.  
3) Manual feed tray (MSI)  
Supported size  
Paper capacity  
Paper type  
A4, B5, A5, Letter, Legal 14, Postcard and User-defined  
100 sheets or 10 mm thick or less for standard paper  
Plain paper 1/Plain paper 2, Transparency, Thick paper 1/Thick paper  
2, Labels paper, Glossy paper, Postcard, and Envelope  
Paper weight: 60 to 216 gsm (16 to 80 lb)  
Paper size  
Minimum: 90 mm (3.5 inches) wide x 139.7 mm (5.5 inches) long  
Maximum: 216 mm (8.5 inches) wide x 356 mm (14 inches) long *  
* The printer can handle paper up to 900 mm (35.4 inches) in long-  
size  
mode. For longer paper, however, the operator support is  
necessary. The paper weight in long-size mode shall be 157 gsm or  
less.  
4) 500-sheet universal tray  
Supported size  
Paper capacity  
Paper type  
A4, B5, A5, Letter, and Legal 14  
500 sheets or 56 mm thick or less for standard paper  
Plain paper 1/Plain paper 2  
Paper weight: 60 to 99 gsm  
5) Paper feed control  
1. Automatic tray feed (including the manual feed tray)  
From the trays including the manual feed tray, the printer automatically selects a  
tray where specified paper is loaded.  
The priority order of automatic selection is as follows:  
Tray 1, Tray 2, Tray 3, Manual feed tray  
A combination with unsupported paper is prohibited on the printer driver.  
2. Specified tray feed  
Select a tray from Tray 1, Tray 2, Tray 3, and Manual feed tray.  
For the manual feed tray, vertical or horizontal feed is selected.  
A combination with unsupported paper is excluded on the printer driver.  
3. Paper level display  
The short-of-paper status can be displayed by CentreWare Internet Services.  
I-21  
20.2 Output Tray  
The printer has a face-down tray at the upper part.  
Supported paper size  
Paper capacity  
All paper sizes that can be handled by the printer  
250 sheets or more for standard paper  
20.3 Duplex  
1) Duplex path  
Supported size  
Paper type  
A4, B5, A5, Letter, Legal 14, and User-defined  
Plain paper 1/Plain paper 2  
Paper weight: 64 to 99 gsm  
Paper size  
Minimum: 149 mm (3.5 inches) wide x 210 mm long (A5)  
Maximum: 216 mm (8.5 inches) wide x 356 mm (14 inches)  
long (Legal 14-inch)  
2) Duplex control  
Select duplex or simplex.  
A combination with unsupported paper is prohibited on the printer driver.  
For duplex printing, " Long Edge Binding " or " Short Edge Binding " can be selected.  
20.4 Handling of Other Paper  
1) Transparency dividers  
The printer has a divider insertion function for transparencies. Before a  
transparency, a blank sheet or a print index of the same contents as the  
transparency is inserted. For the paper tray, user can select automatic paper feed  
from a tray where paper of the same size is loaded (default) or unconditional paper  
feed from a tray specified only for dividers.  
20.5 Summary of Prohibited Conditions  
1) Paper size limitation  
Selected paper size  
A5  
500 Universal Manual Tray  
Duplex  
y
y
y
y
y
n
n
n
y
y
y
y
y
y
y
y
y
y
y
y
y
n
n
y
B5  
A4  
Letter  
Legal 14  
Envelope  
Postcard  
User-defined  
y: possible n: impossible  
I-22  
2) Paper type limitation  
Selected paper type  
Plain paper 1  
500 Universal Manual Tray  
Duplex  
y
y
n
n
n
n
n
n
n
n
y
y
y
y
y
y
y
y
y
y
y
y
n
n
n
n
n
n
n
n
Plain paper 2  
Transparency  
Thick paper 1  
Thick paper 2  
Labels paper  
Glossy paper  
Postcard  
Envelope  
Back (thick, glossy, postcard, envelop)  
y: possible n: impossible  
21. OPERATING SUPPLY VOLTAGE  
<115/120V>  
Phase  
Single (two phases)  
100-127 VAC ±10%  
50/60 Hz±3Hz  
Input voltage  
Frequency  
<220/240V>  
Phase  
Single (two phases)  
220-240 VAC ±10%  
50/60 Hz±3Hz  
Input voltage  
Frequency  
22. RATED POWER CONSUMPTION  
Mode  
Power consumption  
Running Mode  
850 W max (Maximum: Fuser ON)  
450 W max (Average) *1  
Ready Mode  
850 W max (Maximum: Fuser ON)  
180 W max (Average) *2  
Low Power Mode  
45 W max  
Conforming to the International Energy Star Program  
*1: Average in continuous printing  
*2: Average when the fuser is at the standby temperature  
I-23  
23. NOISE  
Standby: 35 dB (A) max  
Printing:  
Base engine  
Cassette run  
Optional feeder  
Cassette run  
54.0 dB(A)  
MSI run  
52.0 dB(A)  
54.0 dB(A)  
54.0 dB(A)  
55.0 dB(A)  
Standard600dpi)  
High definition/gloss  
(Half speed)  
55.0 dB(A)  
24. FIRMWARE UPDATE FUNCTION  
The user can rewrite (update) the ESS firmware and Net extension card formware.  
Update item  
ESS  
Via IEEE1284  
Via network (ftp)  
Via network (web)  
y
y
n
y
y
n
n
n
n
Net extension card  
MCU  
25. TOOLS AND SERVICE CONSUMABLES  
25.1 Tools  
604K2540 (Tester Adapter)  
25.2 Service Consumables  
The printer has no service consumables unique to the machine.  
26. CONSUMABLES  
Consumables  
Product Code  
TN-11BK  
TN-11C  
Life (No. of sheets printable)*1  
Black Toner Cartridge  
Cyan Toner Cartridge  
Magenta Toner Cartridge  
Yellow Toner Cartridge  
Drum Cartridge  
8.5K  
6K  
TN-11M  
6K  
TN-11Y  
6K  
PH-11CL  
TR-11CL  
30K  
25K  
Transfer Roll Cartridge  
with the Waste Toner Bottle)  
*1: Conditions of use  
Paper size: A4 or LETTER  
Black-and-white/color ratio: 1:1  
Toner coverage: 5%  
Number of sheets printed at a time: 4 ave.  
I-24  
27. SOFTWARE RELATED INFORMATION  
27.1 Menu Tree (User Mode)  
Mode 1  
Power Save Time  
3
min. *(0-60)  
1:System  
Menu  
Error Alarm  
YES*, NO  
30sec.*(5  
-
300, OFF)  
Job Timeout  
Panel Language  
English*,French,Italian,German  
Spanish,Dutch  
Auto Log Pr nt  
ID Print  
YES*, NO  
OFF*,Upper Left, Upper Right  
Lower Left, Lower Right  
Text Print  
NO*, YES  
PS Error Report  
PS Job Timeout  
YES*, NO  
OFF*(1-900 min.  
)
Init NVM  
2:Maintenance  
Total  
Color  
B/W  
Print Counter *1  
Panel Set Protect  
Change Password  
Security  
NO*, YES  
Light 60  
Heavy 65-99g/m  
Light 76 99g/m  
Heavy 85 105g/m  
-75g/m2*  
Plain paper 1  
Plain paper 2  
Paper Density  
2
-
2*  
-
2
Enter Number  
Color Regi Correct  
Init PS Disk  
Y=0 M=0 C=0  
Correction Chart  
3:Parallel  
4:Report/List  
5:Network  
6:USB  
Next page  
0:Meter *1  
:
:
Optional  
Default  
*
*1 : Disaplayed when installation Set >Count Display is ON in C/E Diag.  
I-25  
Enabled*, Disabled  
3:Parallel  
ECP  
Adobe Protocol  
TBCP*, Standard, BCP  
Printer Settings  
Panel Settings  
PCL6 Font List  
Log Print  
4:Report/List  
PS Font List  
Demo Page  
Auto*, 10Base/Half, 10Base/Full,  
100Base/Half, 100Base/Full  
Ethernet  
TCP/IP  
5:Network  
Setup IP Address  
IP Address  
DHCP*, Panel  
Subnet Mask  
Gateway Address  
IPX Frame Type  
Protocol  
Auto*, 802.3, 802.2, SNAP, Ethernet-11  
LPD  
Enabled, Disabled*  
Enabled, Disabled*  
Enabled, Disabled*  
Enabled*, Disabled  
Enabled*, Disabled  
Enabled*, Disabled  
Enabled*, Disabled  
Port9100  
IPP  
NetBIOS TCP/IP  
NetBEUI  
NetWare  
AppleTalk  
FilterX Address  
FilterX Mask  
FilterX Mode  
IP Filter  
OFF*, Accept, Reject  
Adobe Protocol  
Adobe Protocol  
RAM*, Standard, BCP, TBCP  
TBCP*, RAW, Standard, BCP  
6:USB  
Meter 1  
0:Meter  
Meter 2, Meter 3  
I-26  
CHAPTER II  
INSTALLATION  
CONTENTS  
CHAPTER II INSTALLATION..........................................................II-1  
1. INSTALLATION PROCEDURE.......................................................................II-1  
1.1 Checking the Packaged Items.............................................................................................. II-2  
1.2 Removing the Tapes from the Printer................................................................................... II-3  
1.3 Removing the Paper Tray Protective Materials .................................................................... II-4  
1.4 Mounting the Print Head Cartridge........................................................................................ II-6  
1.5 Mounting the Toner Cartridges ............................................................................................. II-9  
1.6 Mounting the Transfer Roll Cartridge.................................................................................. II-12  
1.7 Loading Paper..................................................................................................................... II-14  
1.8 Connecting the Power Cable .............................................................................................. II-18  
1.9 Correcting the Color Registrations...................................................................................... II-20  
CHAPTER II  
INSTALLATION  
1.  
INSTALLATION PROCEDURE  
Install the printer as follows:  
1.1 Checking the Packaged Items  
1.2 Removing the Tapes from the Printer  
1.3 Removing the Paper Tray Protective Materials  
1.4 Mounting the Print Head Cartridge  
1.5 Mounting the Toner Cartridges  
1.6 Mounting the Transfer Roll Cartridges  
1.7 Loading Paper  
1.8 Connecting the Power Cable  
1.9 Correcting the Color Registrations  
Note:  
The printer has various protective materials for protection from vibrations and shocks  
during move. Remove all the protective materials first.  
If you purchased a two-tray module, attach the module to the printer first. For the  
attachment method, refer to the attached document.  
The cardboard box, carrying handle, styrofoam, and protective materials of the printer  
package are necessary for the long-distance move of the printer. Be sure not to lose the  
packaging materials.  
II-1  
1.1  
Checking the Packaged Items  
The printer package contains the items shown below. Before starting installation, make  
sure that no items are missing.  
Note:  
Keep the packaging materials if a future long-distance move of the printer is anticipated.  
Printer (base engine)  
Print head cartridge  
Fig.2-1  
Fig.2-2  
Toner cartridges  
Power cable  
(black, yellow, magenta, and cyan)  
Fig.2-3  
Fig.2-4  
II-2  
1.2  
Removing the Tapes from the Printer  
The printer taken out of the box is taped at eight positions.  
Remove all the tapes by referencing the figure below.  
< Right side >  
Fig.2-5  
< Left side >  
Fig.2-6  
< Rear side >  
Fig.2-7  
II-3  
1.3  
Removing the Paper Tray Protective Materials  
Each tray of this printer has two protective materials to suppress the influences of  
vibrations and shocks during move.  
Remove the protective materials as explained next.  
Note:  
The protective materials are necessary for the long-distance move of the printer. Be sure  
not to lose them.  
Fig.2-8  
1) Pull out the paper tray until it stops.  
Fig.2-9  
2) Hold the paper tray by both hands and extract it by lifting this side up.  
Note:  
Put the removed paper tray at a flat place.  
Fig.2-10  
II-4  
3) Take the protective material (made of cardboard) out of the paper tray.  
Note:  
Keep the protective material if a future move of the printer is anticipated.  
Fig.2-11  
4) Hold the paper tray by both hands and slide it into the printer along the slot.  
Fig.2-12  
5) Push the tray deep into to the printer.  
Note:  
Be careful not to push in the tray too hard. Otherwise, the printer or tray itself may  
be damaged.  
Fig.2-13  
II-5  
1.4  
Mounting the Print Head Cartridge  
Mount the print head cartridge as explained next.  
Fig.2-14  
1) Lift the A button ((1)) and open the front cover ((2)).  
Fig.2-15  
2) Open the delivery section cover.  
Fig.2-16  
II-6  
3) Take the print head cartridge out of the package and extract the eight seals hard in  
the horizontal direction.  
Note:  
Keep the aluminum bag of the print head cartridge if a future move of the printer is  
anticipated.  
Fig.2-17  
4) Extract the protective material of the print head cartridge by holding the right and left  
ends.  
Fig.2-18  
5) Peel the protective sheet covering the cartridge as shown in the figure.  
Note:  
Do not touch the intermediate transfer roll (black). Do not hit or scratch the roll surface  
with a thing. If the roll surface is damaged or stained by hand or other, the print quality  
will go low.  
Do not leave the print head cartridge with the protective sheet off. The print quality  
will go low.  
When removing the protective sheet, keep the print head cartridge horizontal.  
Fig.2-19  
II-7  
6) Hold the print head cartridge by the handle and align the bottom roll at the other side  
of the cartridge with the front groove of the printer indicated by the arrow. Then  
lower the cartridge slowly.  
Note:  
Do not touch the intermediate transfer roll.  
The cartridge may be damaged if lowered when the groove and shaft are not aligned well.  
Make sure that the surface of the intermediate transfer roll does not contact other  
parts.  
Intermediate transfer roll  
Fig.2-20  
7) Close the delivery section cover.  
Fig.2-21  
8) Close the front cover.  
Fig.2-22  
II-8  
1.5  
Mounting the Toner Cartridges  
Mount the toner cartridges as explained next.  
Note:  
The toner is not harmful to the human body. If the toner gets on your skin or clothes,  
wash it away immediately.  
Fig.2-23  
1) Detach the top cover.  
Fig.2-24  
2) Take a new toner cartridge of the same color as the label at the mounting position out of the  
package.  
Fig.2-25  
II-9  
3) Shake the cartridge several times (7 or 8) to make the toner even inside.  
Fig.2-26  
4) By aligning with the groove of the printer, place the cartridge in the direction shown  
in the figure.  
Fig.2-27  
5) Hold the knobs at both ends of the toner cartridge. While pressing down gently, turn  
the knobs to this side.  
Fig.2-28  
II-10  
6)  
Extract the toner seal upward.  
Note:  
For extraction, pull the toner seal straight up. The tap may be cut if pulled askew.  
Fig.2-29  
7) Mount the remaining three toner cartridges in the same way.  
Fig.2-30  
8) Attach the top cover.  
Fig.2-31  
II-11  
1.6  
Mounting the Transfer Roll Cartridge  
Follow the procedure below to replace the transfer roll cartridge.  
Fig.2-32  
1) Push up button ‘A’ (1) and fully open the front cover (2).  
Fig.2-33  
2) Grip the orange tabs at both ends of the transfer roll (1) and gently lift it out of the  
printer (2).  
Note:  
Lift the transfer roll carefully to prevent waste toner from spilling out.  
Fig.2-34  
II-12  
3) Unpack a new transfer roll cartridge and grip the orange tabs as shown.  
Fig.2-35  
4) Insert the pins at both ends of the transfer roll cartridge into the bearings inside the  
printer, and gently push the roll into the printer.  
Fig.2-36  
5) To lock the transfer roll cartridge into the printer, push down on the tabs until you  
hear a click.  
Fig.2-37  
II-13  
6) Close the front cover.  
Fig.2-38  
1.7  
Loading Paper  
Load paper on the tray as explained next.  
Fig.2-39  
1) Pull out the paper tray until it stops.  
Fig.2-40  
II-14  
2) Hold the paper tray by both hands and extract it by lifting this side up.  
Note:  
Put the removed paper tray at a flat place.  
Fig.2-41  
3)  
Shift the vertical and horizontal paper guides outward. The vertical paper guide  
should be lifted a little and shifted to positions greater than the paper size.  
Fig.2-42  
4) Pinch and lift the vertical paper guide slightly and align the projection of the guide  
with the  
on the paper size scale.  
Note:  
Check that the stopper of the vertical paper guide is fit in the groove on the scale.  
If the vertical paper guide is moved slightly, the printer may not be able to detect  
the paper size automatically. In this case, shift the vertical paper guide to the most  
outward position and align with the scale again.  
Fig.2-43  
II-15  
5) By aligning the four corners, load the paper under the tabs with the printing side up.  
Note:  
Do not use folded, wrinkled, or greatly curled paper.  
Make sure that the paper is not on the tabs.  
Fig.2-44  
6) Align the horizontal paper guide with the paper width.  
Note:  
If the paper guides are pressed too hard against the paper, a paper jam may occur. If  
the paper guides are too loose, askew paper feed may occur.  
Fig.2-45  
7) Hold the paper tray by both hands and slide it into the printer along the slot.  
Fig.2-46  
II-16  
8) Push the tray deep into to the printer.  
Note:  
Be careful not to push in the tray too hard. Otherwise, the printer or tray itself may  
be damaged.  
Fig.2-47  
Note:  
A paper try has a paper level indicator on its side. Check this indicator when  
loading paper.  
Fig.2-48  
II-17  
1.8  
Connecting the Power Cable  
Connect the power cable as explained below.  
WARNING  
Power specifications are listed below. The specifications that apply to your machine  
depend on your machine configuration. Connect the power plug only to a properly rated  
power outlet. Otherwise, it can cause fire or electric shocks. If in doubt, contact your  
Customer Support Centre.  
- Rated voltage 100V - Rated voltage 110V - Rated voltage 220-240 V  
- Rated frequency 50/60Hz - Rated frequency 60Hz - Rated frequency 50/60Hz  
Never use multi-plug adaptors to plug multiple power plugs in the same outlet. Be sure to  
operate the machine on a sole-use receptacle. Multiple connectors can cause the outlet  
to overheat and cause fire.  
To prevent fire or electric shocks, follow the instruction below based on your machine  
configuration. If in doubt, contact your dealer or authorized Brother service  
representative.  
- If your machine is a 220-240 V model, there is no need to attach a separate earth line  
since the earth connection is incorporated in the power line. Plug it into a properly  
rated outlet.  
- If your machine is a 100 or 110 V model, use the green earth wire bundled with the  
power cord, located at the rear of the machine.  
The earth wire must be connected to one of the following conductors:  
- Earth terminal of the specified power outlet  
- A piece of copper buried in the earth 650 mm or deeper  
- Earth terminal with Class D* earthing.  
* Class D is the regulation for Japan only.  
1) Connect the power cable to the power cable connector on the rear of the printer.  
If the power outlet has a ground terminal, connect the ground wire as well.  
Fig.2-49  
II-18  
2) Press the [|] side of the power switch on the right side of the printer to turn the  
power on.  
Note:  
When the power is turned on for the first time after installation, the motor in the  
printer rotates for one or two minutes.  
Fig.2-50  
II-19  
1.9  
Correcting the Color Registrations  
When the printer is installed for the first time or reinstalled after a move, correct the color  
registrations as explained next.  
< Chart Printing >  
Print the color registration correction chart from the operator panel.  
(Print screen: Printer ready)  
(1) Press the Menu button to display the menu screen.  
(Menu screen)  
(2) Press the  
button once.  
(Menu screen)  
(3) Press the Form Feed/Set or button once.  
(4) Press the  
button four times.  
(5) Press the Form Feed/Set or  
(6) Press the Form Feed/Set or  
button once.  
button once.  
(7) Press the Form Feed/Set button once to print the color  
registration correction chart.  
After printing, the display returns to the print screen.  
II-20  
< Determining Set Values >  
From the lines at right of each grid pattern Y (yellow), M (magenta), or C (cyan) on the  
printed color registration correction chart, the numeric value of a line most straight is  
read.  
Note:  
The color density of each grid pattern is also helpful. The highest density indicates a  
line most straight.  
If the value of the most straight line is 0, no correction is necessary. Otherwise, make  
a necessary correction according to the set value input procedure given next.  
Most straight  
Grid pattern  
< Entering Set Values >  
By using the control panel, enter numeric values read from the color registration  
correction chart for corrections.  
(1) Display the setting menu for the color registration correction  
chart by (1) to (5) on the previous page.  
(2) Press the  
button once.  
(3) Press the Form Feed/Set or  
To next page  
button once.  
II-21  
From previous page  
(4) Press the  
or  
button several times until the set value  
is displayed (example: +3).  
(5) Press the  
value.  
button once to move the cursor (_) to the next  
(6) Set the color registration values by repeating (4) and (5).  
(7) Press the Form Feed/Set button once.  
(8) Press the Form Feed/Set button once. A new color  
registration correction chart reflecting the set values is  
printed.  
After printing, the display returns to the print screen.  
(9) Check that the numeric value of a line most straight is 0 for  
Y (yellow), M (magenta), or C (cyan) on the color  
registration correction chart. This completes the corrections  
of color registrations.  
Note: After printing, the display returns to the print screen.  
II-22  
CHAPTER III  
STRUCTURE OF  
SYSTEM COMPONENTS  
CONTENTS  
CHAPTER III STRUCTURE OF SYSTEM COMPONENTS............III-1  
1. PRINTING PROCESS ...................................................................................III-1  
1.1 Summary of Printing Process .............................................................................................. III-1  
1.2 Schematic Diagram for Printing Processes ......................................................................... III-3  
1.3 Description of Printing Process Techniques........................................................................ III-4  
1.3.1 Charging with electricity................................................................................................. III-4  
1.3.2 Exposure ....................................................................................................................... III-5  
1.3.3 Development ................................................................................................................. III-7  
1.3.4 Primary transfer (drum -> IDT 1)................................................................................... III-9  
1.3.5 Secondary transfer (IDT 1 -> IDT 2)............................................................................ III-11  
1.3.6 Cleaning (IDT 1).......................................................................................................... III-11  
1.3.7 Tertiary transfer (IDT 2 - paper) .................................................................................. III-12  
1.3.8 Cleaning (IDT 2).......................................................................................................... III-13  
1.3.9 Static elimination ......................................................................................................... III-13  
1.3.10 Fixing......................................................................................................................... III-14  
1.3.11 Cleaning (general)..................................................................................................... III-15  
2. FLOW OF PRINT DATA...............................................................................III-17  
2.1 Data Flow........................................................................................................................... III-17  
3. DRIVE TRANSMISSION ROUTE.................................................................III-18  
3.1 Main Drive ASSY ............................................................................................................... III-18  
3.2 DEVE Drive ASSY ............................................................................................................. III-19  
3.3 Holder Toner Cartridge ASSY (Y, M, C, K)........................................................................ III-19  
3.4 Fuser Drive ASSY.............................................................................................................. III-20  
3.5 Motor ASSY DUP............................................................................................................... III-20  
3.6 Gear Layout ....................................................................................................................... III-21  
4. PAPER TRANSFER.....................................................................................III-22  
4.1 Paper Transfer Route (without option)............................................................................... III-22  
4.2 Layout of Paper Transfer Route......................................................................................... III-23  
5. FUNCTIONS OF MAJOR FUNCTIONAL COMPONENTS...........................III-24  
5.1 Paper Cassette .................................................................................................................. III-25  
5.1.1 Major functions............................................................................................................ III-25  
5.1.2 Reference diagram...................................................................................................... III-25  
5.2 Paper Feeder..................................................................................................................... III-26  
5.2.1 Major functions............................................................................................................ III-26  
5.2.2 Reference diagram...................................................................................................... III-27  
5.3 Housing ASSY Retard........................................................................................................ III-28  
5.3.1 Major functions............................................................................................................ III-28  
5.3.2 Reference diagram...................................................................................................... III-28  
5.4 Front ASSY In .................................................................................................................... III-29  
5.4.1 Major functions............................................................................................................ III-29  
5.4.2 Reference diagram...................................................................................................... III-29  
5.5 Chute ASSY Out ................................................................................................................ III-30  
5.5.1 Major functions............................................................................................................ III-30  
5.5.2 Reference diagram...................................................................................................... III-31  
5.6 Chute ASSY Exit................................................................................................................ III-32  
5.6.1 Major functions............................................................................................................ III-32  
5.6.2 Reference diagram...................................................................................................... III-32  
5.7 Transfer Roll Cartridge ASSY & Fuser .............................................................................. III-33  
5.7.1 Major functions............................................................................................................ III-33  
5.7.2 Reference diagram...................................................................................................... III-34  
5.8 Xerographics...................................................................................................................... III-35  
5.8.1 Major functions............................................................................................................ III-35  
5.8.2 Reference diagram...................................................................................................... III-36  
5.9 Toner Cartridge ASSY ....................................................................................................... III-37  
5.9.1 Major functions............................................................................................................ III-37  
5.9.2 Reference diagram...................................................................................................... III-38  
5.10 Frame & Drive.................................................................................................................. III-39  
5.10.1 Major functions.......................................................................................................... III-39  
5.10.2 Reference diagram.................................................................................................... III-39  
5.11 Electrical........................................................................................................................... III-40  
5.11.1 Major functions.......................................................................................................... III-40  
5.11.2 Reference diagram.................................................................................................... III-41  
6. MODES........................................................................................................III-42  
6.1 Print Mode.......................................................................................................................... III-42  
6.2 Operation Modes ............................................................................................................... III-42  
7. CONTROL ...................................................................................................III-43  
7.1 Control of Paper Size......................................................................................................... III-43  
7.2 Selective Control on Paper Pick-up Unit............................................................................ III-43  
7.3 Scanner Light Quantity Control.......................................................................................... III-43  
7.4 Process Control ................................................................................................................. III-43  
7.4.1 Potential control........................................................................................................... III-44  
7.4.2 Toner density control................................................................................................... III-45  
7.4.3 High area coverage mode........................................................................................... III-46  
7.4.4 Admix mode ................................................................................................................ III-46  
7.4.5 LED light quantity control of holder ASSY CTD........................................................... III-46  
7.5 Color Registration Control.................................................................................................. III-47  
7.6 Transfer Roll Cartridge Unit ASSY Control........................................................................ III-48  
7.6.1 Detecting the installation of transfer roll cartridge unit ASSY...................................... III-48  
7.6.2 Detecting the life of transfer roll cartridge unit ASSY.................................................. III-48  
7.7 Toner Control..................................................................................................................... III-49  
7.7.1 Sensor toner low ......................................................................................................... III-49  
7.7.2 2 Toner presence control ............................................................................................ III-49  
7.8 Fuser Control ..................................................................................................................... III-50  
7.8.1 Fuser temperature control........................................................................................... III-50  
7.8.2 Cool down ................................................................................................................... III-50  
CHAPTER III STRUCTURE OF SYSTEM COMPONENTS  
1.  
PRINTING PROCESS  
1.1  
Summary of Printing Process  
This printer is a "Full-color laser printer" which applies the principal of an  
electrophotographic recording system. The tandem system comprising a drum and  
developing unit respectively for each color of yellow, magenta, cyan and black (Y, M, C  
and K) places toner image of each color on paper producing full-color prints finally  
through 3 intermediate transfer units (IDT 1: 2, IDT 2: 1).  
Printing processes of this printer is composed of the basic steps as follows.  
1) Charging with electricity: Drum surface is charged with electricity.  
2) Exposure: Image unit is exposed to laser beams.  
3) Development: Image is developed with toner.  
4) Primary transfer: Toner image is transferred to the intermediate transfer unit (IDT 1).  
5) Secondary transfer: Toner image on the intermediate transfer (IDT 1) is transferred  
to the intermediate transfer unit (IDT 2).  
6) Cleaning: The intermediate transfer (IDT 1) is cleaned.  
7) Tertiary transfer: Four-color finished toner image on the intermediate transfer unit  
(IDT 2) is transferred onto the paper.  
8) Cleaning: Intermediate transfer unit (IDT 2) is cleaned.  
9) Static elimination: Electric charge of the paper is eliminated.  
10) Fixing: Toner on the paper is fixed by heat and pressure.  
11) Cleaning: Remaining toner on the drum and intermediate transfer units are  
collected.  
III-1  
Drum Y  
Drum M  
Drum C  
Drum K  
Charged  
with  
electricity  
Charged  
with  
electricity  
Charged  
with  
electricity  
Charged  
with  
(1)  
(1)  
(1)  
(1)  
electricity  
Exposure  
(2) Exposure  
(2) Exposure  
(2) Exposure  
(2)  
(3)  
Develop-  
ment  
Develop-  
(3)  
Develop-  
(3)  
Develop-  
(3)  
ment  
ment  
ment  
Primary transfer  
(Drum IDT1)  
Primary transfer  
(4)  
(4)  
(Drum  
IDT1)  
Intermediate  
transfer unit  
( IDT1)  
Intermediate  
transfer unit  
Cleaning  
( IDT1)  
Cleaning  
( IDT1)  
(6)  
(6)  
( IDT1)  
(5)  
Secondary transfer  
( IDT1 IDT2)  
Intermediate  
transfer unit  
( IDT2)  
(8)  
Cleaning ( IDT2)  
(7)  
Cleaning  
(general)  
Tertiary transfer  
(11)  
( IDT2 Paper)  
Transfer roll  
cartridge  
(9)  
Paper  
Static elimination  
(10)  
Fixing  
Fig.3-1  
III-2  
1.2  
Schematic Diagram for Printing Processes  
Outline of printing processes is shown in the figures below.  
: Laser beam  
Toner Cartridge ASSY(Y)  
[(3) Development]  
Scanner ASSY  
: Paper transfer  
[(2) Exposure]  
Toner Cartridge ASSY(M)  
Print Head  
Cartridge ASSY  
[(3) Development]  
FUSER ASSY  
[(10) Fixing]  
Toner Cartridge ASSY(C)  
[(3) Development]  
Toner Cartridge ASSY(K)  
[(3) Development]  
Detack Saw  
[(9) Static elimination]  
Transfer Roll  
Cartridge ASSY  
Transfer Roll Cartridge  
[(7) Tertiary transfer]  
[(11) Cleaning]  
Fig.3-2  
Print head cartridge ASSY is integrated major units of printing processes. It is composed  
as follows.  
HTC Refresher  
[(1) Changing with electricity]  
Drum(Y)  
Refresher  
HTC  
IDT1  
[(1) Changing with electricity]  
[(4) Primary transfer]  
[(5) Secondary transfer]  
Developer(Y)  
[(3) Development]  
IDT1 Cleaner  
[(6) Cleaning]  
Drum(M)  
IDT2 Cleaner  
[(8) Cleaning]  
Developer(M)  
[(3) Development]  
HTC  
IDT2  
[(1) Changing with electricity]  
[(5) Secondary transfer]  
[(7) Tertiary transfer]  
Developer(C)  
[(3) Development]  
IDT1  
Drum(C)  
[(4) Primary transfer]  
[(5) Secondary transfer]  
HTC  
[(1) Changing with electricity]  
IDT1 Cleaner  
[(6) Cleaning]  
Developer(K)  
Drum(K)  
Refresher  
[(3) Development]  
Refresher  
Fig.3-3  
III-3  
1.3  
1.3.1 Charging with electricity  
In the charging process, the drum surface rotating at a constant speed is charged  
Description of Printing Process Techniques  
uniformly with negative electricity by discharging of HTC (Hechima Tube Charge:  
Charged film).  
This process is performed in parallel for yellow, magenta, cyan and black colors.  
The HTC is kept in contact with the drum and rotates following the rotations of the  
drum.  
HTC is a conductive roll, receives discharge voltage from HVPS (High Volume  
Power Supply) and discharges at minus DC voltage.  
The drum surface is uniformly and negatively charged with DC bias voltage.  
The drum surface is optical conductor (which is insulator in a dark place and  
conductor when receiving light) and the drum inside is composed of conductor.  
The Refresher is a conductive brush, and it receives negative DC voltage from the  
HVPS to catch the toner of reverse polarity returned to the drum via IDT. Also, it  
removes discharge products.  
Refresher  
HTC  
-
Optical conductor  
-
-
Conductor  
-
+
-
Drum  
+
-
+
HVPS  
Fig.3-4  
Electric potential  
on drum  
Drum surface  
-V  
0
Fig.3-6  
Fig.3-5  
III-4  
1.3.2 Exposure  
In the exposure process, the drum surface charged negatively is scanned by laser beams  
to form invisible electrostatic latent image on the drum surface.  
This process is performed in parallel for yellow, magenta, cyan and black colors.  
Laser beams are emitted from the laser diode in the scanner ASSY. By the rotating  
polygon mirror, fixed mirror and lens attached to the scanner ASSY of the scanner  
ASSY, each color of drum surface is scanned from end to end in the axial direction.  
: Laser beams (Y)  
: Laser beams (M)  
: Laser beams (C)  
: Laser beams (K)  
Mirror  
Mirror  
Mirror  
Mirror  
Lens  
Drum (Y)  
Drum (M)  
Polygon Mirror  
Quad Beam Laser Diode  
Lens  
Drum (C)  
Drum (K)  
Mirror  
Mirror  
Mirror  
Mirror  
Mirror  
Fig.3-7  
The laser beams are emitted based on the print data (image data) from the printer  
controller.  
When the print data instructs to print pixel points, laser beams are generated and  
when the print data instructs not to print, no laser beams are generated. (On the  
areas which are developed by toner, the laser beams light up and areas which are  
not developed by toner, laser beams go out.) The laser beams emitted on the drum  
surface generate a pair (electron <=> hole) in the optical conductive layer.  
[Electrons are excited on the conductive zone, causing holes at the valence band.]  
Electrons are induced by the electric field, moved toward the inside metallic part and  
flow into it. The holes move toward the outer surface of the optical conductive layer,  
are combined with the minus charge (electron) on the outer surface again and  
decrease negative charge. As a result, on the drum surface where the electric  
potential increases, invisible static latent image (print image) is generated.  
III-5  
Scanner ASSY  
: Negative electric charge  
: Positive electric charge  
Drum surface  
(Laser beams)  
Optical conductor  
Conductor  
Electrostatic  
latent image  
(Laser beams)  
Fig.3-9  
Drum  
Fig.3-8  
< Drum concept >  
Laser beams  
Electric potential  
on drum  
(Laser beams)  
Optical  
-V  
conductor  
0
Conductor  
Fig.3-10  
Fig.3-11  
III-6  
1.3.3 Development  
In the development process, toner is electrically attached to the invisible statistic latent  
image on the drum surface to form visible toner image on the drum.  
This process is performed in parallel for yellow, magenta, cyan and black color  
respectively.  
The toner in the toner cartridge is agitated by the agitator in the toner cartridge and  
fed into the toner holder. Further, the toner is fed to the developer by the auger in  
the toner holder and the auger in the tube that connects the toner holder and the  
developer. The agitator and auger are spiral agitating components and they are  
driven by the toner motor provided on the rear of toner cartridge. The toner to be  
consumed according to the print count is calculated and fed into the developer. This  
is called "toner dispensation", which is controlled by two types of control, "PCDC"  
and "ADC". For the PCDC and ADC, see 7.4 Process Control in this chapter.  
The toner fed into the developer and the carrier in the developer are agitated by the  
auger, and supplied to the magnet roll arranged in the vicinity of the drum surface.  
The toner and carrier are charged by friction due to the agitation (toner in negative,  
carrier in positive), and they are absorbed each other electrically. As the carrier is a  
magnetic substance, it is attracted to the magnet roll having a magnetic force and a  
homogeneous layer is formed by the trimmer rod and the paddle.  
The magnet roll is covered by a thin semi-conductive sleeve over the surface. DB  
(Developing Bias) voltage is supplied to this semiconductor sleeve from HVPS. DB  
voltage is negative DC voltage combined with AC voltage. The magnet roll is kept at  
constant negative voltage against the optical conducting layer of the drum by DC  
voltage. Therefore, at the area on the drum surface where the negative electric  
charge does not decrease, potential is lower than the magnet roll, while the potential  
is higher than the magnet roll at the area where the negative charge on the drum  
surface decreases. The AC voltage shakes the developer on the magnet roll  
surface pressing the toner to fly to the drum.  
Thus, the toner charged negatively is attracted only by the area where the minus  
charge has decreased on the drum surface from the magnet roll (static latent image)  
and the toner image is formed on the drum.  
When the toner is attached, minus charge at that portion increases, potential  
decreases, and force to attract the toner decreases.  
III-7  
Toner Cartridge ASSY  
Agitator  
: Negative electric charge  
: Positive electric charge  
: Toner  
-
+
: Carrier  
Auger  
Trimmer Rod  
Paddle  
Auger  
Magnet Roll  
-
-
Auger  
Drum  
+
-
+
+
-
+
-
HVPS  
Fig.3-12  
Electric potention  
on drum  
Dram surface  
-V  
Developing  
bias  
Toner image  
0
Fig.3-13  
Fig.3-14  
III-8  
1.3.4 Primary transfer (drum -> IDT 1)  
In the primary transfer process, toner image formed on the drum surface is transferred  
onto the surface of the IDT 1 (Intermediate Drum Transfer 1: intermediate transfer roll 1).  
Two IDT 1 are provided: yellow and magenta, and cyan and black are respectively  
transferred to their IDT 1.  
IDT 1 is a conductive roll and receives supply of high positive voltage from HVPS.  
The toner image (negatively charged) on the drum is attracted to the IDT1 positively  
charged, and transferred from the drum to the IDT1 surface.  
At this time, electric charge of the drum surface is neutralized by the IDT1.  
Drum surface  
-
+
: Negative electric charge  
: Positive electric charge  
: Toner  
-
-
+
Drum (Y)  
+
+
+
+
-
IDT1  
-
+
+
+
Fig.3-16  
+
+
+
-
Drum (M)  
+
-
-
-
-
-
+
Drum (C)  
+
+
+
+
-
IDT1  
-
+
+
+
+
+
HVPS  
+
-
Drum (K)  
+
-
-
-
Fig.3-15  
III-9  
Drum surface  
(Yellow toner image)  
IDT1 surface  
Yellow  
toner image  
Magenta  
toner image  
Drum surface  
(Magenta toner image)  
Drum surface  
(Cyan toner image)  
IDT1 surface  
Cyan  
toner image  
Drum surface  
(Black toner image)  
Black  
toner image  
Fig.3-17  
III-10  
1.3.5 Secondary transfer (IDT 1 -> IDT 2)  
In the secondary transfer process, the toner image formed on the IDT 1 surface is  
transferred onto the surface of the IDT 2 (Intermediate Drum Transfer 1: intermediate  
transfer roll 2).  
Two color toner image transferred onto the 2 IDT 1 is transferred to the IDT 2. Thus, 4  
color toner image are compiled on the IDT 2 as finished toner image.  
IDT 2 is a conductive roll and receives supply of positive high voltage from HVPS.  
Both the IDT 1 and IDT 2 are positively charged. Voltage is higher on the IDT 2 and  
toner image is attracted to the IDT 2 surface and transferred onto the IDT 2.  
1.3.6 Cleaning (IDT 1)  
In the cleaning process (IDT 1), toner remaining on the IDT 1 after the toner image is  
transferred to the IDT 2 is temporarily stored in the IDT 1 cleaner.  
The IDT 1 cleaner receives positive high voltage from the HVPS with a conductive  
roll brush.  
The IDT 1 cleaner is placed in contact with the IDT 1 at the position through which it  
passes after the toner image having been transferred from the drum is transferred to  
the IDT 2. Toner remaining on the IDT 1 is electrically scraped and stored.  
The toner stored is collected upon completion of printing or at the time of cleaning  
cycle. (Refer to1.3.11 Cleaning (general).)  
: Positive electric charge  
: Toner  
+
+
+
IDT1  
+
+
+
IDT1 Cleaner  
+
+
+
+
+
+
IDT2  
+
+
+
+
+
+
+
+
+
+
+
+
+ +  
+
+
IDT1  
HVPS  
HVPS  
IDT1 Cleaner  
Fig.3-18  
III-11  
IDT1 surface  
Yellow  
toner image  
Magenta  
toner image  
IDT2 surface  
Yellow  
toner image  
Magenta  
toner image  
Cyan  
toner image  
IDT1 surface  
Black  
toner image  
Cyan  
toner image  
Black  
toner image  
Fig.3-19  
1.3.7 Tertiary transfer (IDT 2 - paper)  
In the tertiary transfer process, finished toner image formed on the IDT 2 surface is  
transferred onto the paper under the voltage supplied to the transfer roll cartridge.  
Transfer roll cartridge is composed in the transfer roll cartridge ASSY.  
Transfer roll cartridge is a conductive roll and receives positive high current from  
HVPS.  
When paper passes through between IDT2 and transfer roll cartridge, plus potential  
is given to the back side of the paper so that the toner on the IDT 2 is transferred  
onto the paper. At this time, potential on the transfer roll cartridge is higher than that  
on the IDT 2.  
III-12  
1.3.8 Cleaning (IDT 2)  
In the cleaning process, toner remaining on the IDT 2 after the toner image is transferred  
onto the paper is temporarily held at the IDT 2 cleaner.  
The IDT 2 cleaner is a conductive roll brush and receives positive high voltage from  
HVPS.  
The IDT 2 cleaner is placed in contact with the IDT 2 at a position through which it  
passes after the toner image having been transferred from IDT 1 is transferred onto  
the paper. Remaining toner on the IDT 2 is electrically scraped and held at the IDT  
2 cleaner.  
The toner held is collected upon completion of printing or at the cleaning cycle.  
(Refer to 1.3.11 Cleaning (general).)  
1.3.9 Static elimination  
In the static elimination process, negative DC voltage is given to the back side of the  
paper from the detack saw (static elimination board) to neutralize and eliminate the  
charge of paper.  
The detack saw receives high voltage from HVPS.  
The positive charge caused in the tertiary transfer process generates image quality  
troubles by. scattering toner. Static electricity of the paper is eliminated by  
discharge of the detack saw preventing those image quality troubles.  
IDT2 Cleaner  
: Negative electric charge  
: Positive electric charge  
: Toner  
-
+
IDT2  
+
+
-
+
+
+
Detack Saw  
+
+
+
+
+
+ +  
Transfer Roll  
Cartridge  
HVPS  
Paper  
HVPS  
Fig.3-20  
III-13  
1.3.10 Fixing  
In the fixing process, toner is fixed on the paper by heat and pressure.  
Finished toner image transferred from the belt is easily broken only by touching it  
with fingers. The toner image is fixed on the paper with the fuser ASSY (fixing unit).  
The toner melts by heat of the heat roll with the heater lamp as the heat source and  
is deposited on the paper under pressure given by the belt opposed against the heat  
roll.  
Paper  
Spring Nip  
Fixed toner  
Nip Head  
Belt  
Heat Roll  
Felt  
Heater Lamp  
Frame Belt  
Sheet  
Not fixed toner  
Pad  
Fig.3-21  
III-14  
1.3.11 Cleaning (general)  
In the cleaning (general) process, toner stored in the IDT 1 cleaner and IDT 2 cleaner  
after the finished toner image is transferred onto the paper and the toner remaining on  
the transfer roll cartridge are removed.  
The toner not completely transferred in the "secondary transfer" and "tertiary  
transfer" processes is held temporarily in the IDT1 cleaner and IDT2 cleaner. Also,  
the toner of which polarity is reversed and returned to the drum is held in the  
refresher. Further, the toner that passes the refresher may stick to the HTC.  
These toners are cleaned at the completion of the printing. The recovery method is  
different between the toner held in the IDT1 cleaner and IDT2 cleaner and the toner  
held in the refresher and HTC.  
1) IDT1 cleaner and IDT2 cleaner  
High voltage equivalent to the voltage at the printing transfer is applied to the IDT1,  
IDT2, and transfer roll cartridge. The toner (negative polarity) remaining in the IDT1  
cleaner and IDT2 cleaner are moved to the IDT1 and IDT2 electrically by  
transforming the IDT1 cleaner and IDT2 cleaner to 0V. Then, in the same manner  
as in the printing transfer, the residual toner is collected to the transfer roll cartridge  
surface by potential difference between IDT1, IDT2, and transfer roll cartridge.  
+
+
: Positive electric charge  
: Toner  
+
IDT1  
+
+
+
+
IDT2 Cleaner  
+
+
+
+
+
+
IDT2  
+
+
IDT1 Cleaner  
+
+
+
+
+
+
+
Transfer  
Roll  
+
+
IDT1  
+
Cartridge  
+
+
+
+
+
+
+
HVPS  
HVPS  
HVPS  
Scraper  
IDT1 Cleaner  
Fig.3-22  
III-15  
2) Refresher and HTC  
High voltage of the polarity (negative) reverse to that at the printing transfer is applied  
to the IDT1, IDT2, and transfer roll cartridge. At this time, the drum surface is  
charged negatively by negative voltage of the IDT1. The toner (positive polarity)  
remaining in the Refresher and HTC are move to the drum electrically by  
transforming the Refresher and HTC to 0V. Then, in the same manner as in the  
printing transfer, the residual toner is collected to the transfer roll cartridge surface by  
potential difference between IDT1, IDT2, and transfer roll cartridge.  
Toner attached to the surface of transfer roll cartridge is scraper off with the transfer  
roll cartridge cleaner which is in contact with the transfer roll cartridge and collected  
into the collection space in the transfer roll cartridge unit ASSY.  
Refresher  
HTC  
-
: Negative electric charge  
: Toner  
-
-
Drum (Y)  
-
-
-
IDT1  
-
Refresher  
HTC  
-
-
-
-
-
-
-
-
Drum (M)  
-
-
-
IDT2  
Refresher  
-
-
HTC  
-
-
-
Drum (C)  
-
-
-
-
-
Transfer  
Roll  
-
-
-
IDT1  
-
Cartridge  
-
Refresher  
HTC  
-
-
-
-
-
-
Drum (K)  
-
-
HVPS  
HVPS  
HVPS  
Scraper  
-
Fig.3-23  
III-16  
2.  
FLOW OF PRINT DATA  
2.1  
Data Flow  
Print data (electric signal) from the printer controller flows as shown below to turn to the  
print image finally.  
Host (electric signal)  
Printer controller (electric signal)  
HNB MCU WITH CPU (electric signal)  
Scanner ASSY (laser beams)  
Electrostatic latent on drum  
(invisible image)  
Toner image on drum  
Toner image on intermediate transfer unit  
(IDT1)  
Toner image on intermediate transfer unit  
(IDT2)  
Toner image on paper  
Print image on paper  
Fig.3-24  
III-17  
3.  
DRIVE TRANSMISSION ROUTE  
3.1  
Main Drive ASSY  
Rotary power of the main drive ASSY is transmitted through the route below.  
MAIN DRIVE ASSY  
GEAR IDLER IN  
Regi.Clutch  
CLUTCH ASSY TURN  
ROLL ASSY TURN  
GEAR IDLLER  
GEAR IDLLER FEED  
GEAR FEED H1  
GEAR FEED1  
Regi.Roll  
CHUTE REGI  
ROLL ASSY FEED  
PAPER FEEDER  
CLUTCH TURN  
GEAR MSI  
IDT2  
ROLL TURN  
ROLL ASSY FEED  
CHUTE ASSY OUT  
IDT1 (2)  
HOUSING ASSY RETARD  
Drum (4)  
PRINT HEAD  
CARTRIDGE ASSY  
TRANSFER ROLL  
CARTRIDGE ASSY  
Fig.3-25  
III-18  
3.2  
DEVE Drive ASSY  
The rotary power of the DEVE drive ASSY drives the developers of 4 colors in the print  
head cartridge ASSY.  
DEVE DRIVE ASSY  
Developer (Y)  
Developer (M)  
Developer (C)  
Developer (K)  
PRINT HEAD CARTRIDGE ASSY  
Fig.3-26  
3.3  
Holder Toner Cartridge ASSY (Y, M, C, K)  
Rotary power of the toner motor in the holder toner cartridge ASSY drives the agitator in  
the toner cartridge ASSY (to supply toner from the toner cartridge ASSY to holder toner  
cartridge ASSY) and auger in the holder toner cartridge ASSY (to supply toner to  
developer in the print head cartridge ASSY).  
Four holder toner cartridge ASSY, Y, M, C and K, operate respectively in the same way.  
Toner Motor  
Gear  
Auger  
Auger  
Gear  
Film  
Agitator  
HOLDER TONER CARTRIDGE ASSY  
TONER CARTRIDGE ASSY  
Fig.3-27  
III-19  
3.4  
Fuser Drive ASSY  
Rotary power of the fuser drive ASSY drives the fuser ASSY.  
FUSER DRIVE ASSY  
Heat Roll  
Gear Exit  
Roll Assy Exit  
FUSER ASSY  
Fig.3-28  
3.5  
Motor ASSY DUP  
Rotary power of the motor ASSY DUP is transmitted through the route below.  
MOTOR ASSY DUP  
GEAR 48  
GEAR 48  
GEAR 40/42  
GEAR42  
GEAR 40/42  
GEAR ROLL  
ROLL EXIT  
GEAR ROLL  
ROLL MID  
CHUTE ASSY EXIT  
GEAR 30  
ROLL DUP  
CHUTE ASSY OUT  
Fig.3-29  
III-20  
3.6  
Gear Layout  
CHUTE ASSY OUT  
PRINT HEAD CARTRIDGE ASSY  
TRANSFER ROLL  
CARTRIDGE ASSY  
REGI CLUTCH  
CHUTE REGI  
MAIN DRIVE ASSY  
CLUTCH ASSY TURN  
GEAR IDLER FEED  
GEAR MSI  
HOUSING ASSY RETARD  
CLUTCH TURN  
GEAR IDLER IN  
GEAR IDLER  
GEAR FEED1  
GEAR FEED H1  
FRONT  
PAPER FEEDER (PICK UP ASSY)  
Fig.3-30  
MOTOR ASSY DUP  
GEAR ROLL  
GEAR ROLL  
GEAR 48  
GEAR 40/42  
GEAR 48  
GEAR 40/42  
GEAR 42  
CHUTE ASSY EXIT  
CHUTE ASSY OUT  
GEAR 30  
FRONT  
Fig.3-31  
III-21  
4.  
PAPER TRANSFER  
4.1  
Paper Transfer Route (without option)  
Paper feed from paper tray (Tray 1)  
Paper feed by "ROLL ASSY FEED (Tray)"  
Paper feed from MSI  
Paper feed by "ROLL ASSY FEED (MSI)"  
and "ROLL ASSY RETARD"  
Paper feed by "ROLL ASSY" in cassette  
and "ROLL ASSY" in feeder  
Paper transfer by "ROLL ASSY TURN"  
and "CHUTE ASSY TURN"  
Paper transfer by "ROLL TURN"  
and "ROLL PINCH TURN"  
Paper transfer by "Regi Roll" and "Metal Roll" of CHUTE ASSY REGI  
Paper transfer by "IDT2" of PRINT HEAD CARTRIDGE ASSY and  
"TRANSFER ROLL CARTRIDGE" of TRANSFER ROLL CARTRIDGE UNIT ASSY  
Paper transfer by "Heat Roll" and "Fuser Belt" of FUSER ASSY  
Paper transfer by "ROLL ASSY EXIT" and "Pinch Roll" of FRAME ASSY FUSER  
Paper transfer by "ROLL MID" of CHUTE ASSY EXIT and "ROLL PINCH" OF CHUTE ASSY OUT  
Paper transfer by "ROLL EXIT" of CHUTE ASSY EXIT and "ROLL PINCH EXIT" of CHUTE ASSY OUT  
Paper transfer to duplex path by reversing  
"ROLL EXIT" and "ROLL MID"  
Print output  
Paper transfer by "ROLL DUP"  
and "ROLL PINCH DUP"  
Fig.3-32  
III-22  
4.2  
Layout of Paper Transfer Route  
: Laser beam  
: Paper transfer  
: Paper sensors  
ROLL EXIT  
ROLL MID  
ROLL PINCH EXIT  
ROLL PINCH  
Pinch Roll  
ROLL ASSY EXIT  
Fuser Belt  
ROLL DUP  
Heat Roll  
IDT2  
ROLL PINCH DUP  
Transfer Roll Cartridge  
Metal Roll  
Regi Roll  
ROLL ASSY FEED  
ROLL ASSY RETARD  
ROLL PINCH TURN  
ROLL TURN  
CHUTE ASSY TURN  
ROLL ASSY FEED  
(PICK UP ASSY 1T)  
ROLL ASSY TURN  
(PICK UP ASSY 1T)  
ROLL ASSY(PICK UP ASSY 1T)  
ROLL ASSY(Cassette)  
Fig.3-33  
III-23  
5.  
FUNCTIONS OF MAJOR FUNCTIONAL COMPONENTS  
Major functional components comprising the printer are described below referring to their  
illustrations.  
Those components are classified into the following blocks based on the configuration of  
the printer.  
Paper Cassette  
Paper Feeder  
Housing ASSY Retard  
Front ASSY In  
Chute ASSY Out  
Chute ASSY Exit  
Transfer Roll Cartridge ASSY & Fuser  
Xerographics  
Toner Cartridge ASSY  
Frame & Drive  
Electrical  
III-24  
5.1  
Paper Cassette  
5.1.1 Major functions  
Side Guide  
The side guide can move at right angle to the paper transfer direction to align the paper  
width.  
End Guide  
The end guide can move in the paper transfer direction to determine the paper size.  
The ON/OFF of switch ASSY size (see 5.2 Paper Feeder) varies according to the end  
guide position to detect the paper size.  
Roll ASSY (Cassette)  
The roll ASSY (Cassette) and the roll ASSY (pick up ASSY T1) (see 5.2 Paper Feeder)  
pinch the paper to feed.  
5.1.2 Reference diagram  
End Guide  
Side Guide  
ROLL ASSY(Cassette)  
Side Guide  
Fig.3-34  
III-25  
5.2  
Paper Feeder  
5.2.1 Major functions  
Switch ASSY size  
Switch ASSY size detects paper size and existence or non existence of the paper tray.  
Sensor photo (No paper sensor)  
Detects existence or non existence of paper in the paper tray based on the position of  
actuator no paper. (No paper: Sensor beam is intercepted)  
Sensor photo (Low paper sensor)  
The actuator lowers according to how much paper remains in the paper tray. When  
the actuator lowers to certain extent, it intercepts the sensor beam to detect low paper  
quantity.  
As the actuator position can be seen from the front side of paper tray, you can confirm  
approximate residual paper quantity.  
Solenoid feed  
Controls operation (rotation/stop) of roll ASSY feed by controlling the rotations of the  
gear feed.  
Clutch ASSY turn  
Transmits the drive from the main drive ASSY to roll ASSY turn.  
Roll ASSY feed  
When the solenoid feed operates, the gear feed and gear idler feed are engaged by  
the force of the spring feed. Under the drive from the main drive ASSY, the roll ASSY  
feed starts rotating and the roll ASSY (pickup ASSY T1) sends paper.  
After having rotated one turn, the gear feed and gear idler feed are disengaged at the  
notch of the gear feed, no drive is transmitted any more, and the roll ASSY feed stops  
rotating. Thus sheets of paper is sent out one by one.  
Roll ASSY turn  
The roll ASSY turn rotates by the drive from the main drive ASSY through the clutch  
ASSY turn to feed the paper from the paper tray to chute REGI (REGI roll) ("refer to 5.8  
Xerographics").  
Sensor HUM TEMP  
Detects temperature and humidity in the printer.  
The printer corrects the charging voltage, the voltage supplied to the transfer rolls, and  
the developing bias based on the detected temperature and humidity.  
III-26  
5.2.2 Reference diagram  
SENSOR PHOTO(No Paper Sensor)  
ROLL ASSY FEED  
CLUTCH ASSY TURN  
SENSOR HUM TEMP  
SWITCH ASSY SIZE  
GEAR FEED  
SPRING FEED  
GEAR IDLER FEED  
ROLL ASSY TURN  
SOLENOID FEED  
ROLL ASSY(PICK UP ASSY T1)  
SENSOR PHOTO(Low Paper Sensor)  
Fig.3-35  
III-27  
5.3  
Housing ASSY Retard  
5.3.1 Major functions  
Clutch turn (MSI turn clutch)  
Transmits the drive from the main drive ASSY to the roll turn.  
Roll turn  
The roll turn is rotated by the drive from the main drive ASSY through the clutch turn  
(MSI turn clutch) to feed the paper from the manual feed tray to the chute REGI (REGI  
roll) (refer to "5.8 Xerographics").  
5.3.2 Reference diagram  
ROLL TURN  
CLUTCH TURN(MSI Turn Clutch)  
Fig.3-36  
III-28  
5.4  
Front ASSY In  
5.4.1 Major functions  
Holder ASSY CTD  
Reads the density of the toner image prepared on the surface of transfer roll cartridge  
in the transfer roll cartridge unit ASSY (refer to "5.7 Transfer Roll Cartridge ASSY &  
Fuser") and feeds it back to the process control (refer to "7.4 Process Control").  
Sensor TNR full  
Detects that the toner collect space in the transfer roll cartridge unit ASSY (refer to "5.7  
Transfer Roll Cartridge ASSY & Fuser") has become full of waste toner to be collected.  
Fuser drive ASSY  
Supplies the drive to the fuser ASSY (refer to "5.7 Transfer Roll Cartridge ASSY &  
Fuser").  
5.4.2 Reference diagram  
HOLDER ASSY CTD  
FUSER ASSY  
SENSOR TNR FULL  
FUSER DRIVE ASSY  
Fig.3-37  
III-29  
5.5  
Chute ASSY Out  
5.5.1 Major functions  
Sensor photo (Full stack sensor)  
Detects that the prints discharged onto the top cover have accumulated more than  
specified number of sheets based on the change of position of the actuator.  
(Full stack: Sensor beam is received)  
Sensor photo (Dug jam sensor)  
Detects that paper has reached and passed through the roll DUP based on the change  
of position of the actuator.  
(Paper present: Sensor beam is received)  
Sensor photo (MSI no paper sensor)  
Detects existence or non existence of paper on the manual feed tray based on the  
change of position of the actuator.  
(No paper: Sensor beam is intercepted)  
Solenoid feed MSI  
Controls the operation (rotation/stop) of roll ASSY feed by controlling the rotations of  
the gear MSI.  
Roll ASSY feed  
When the solenoid feed MSI operates, the gear MSI and gear idler are engaged by the  
force of the spring SOL, the roll ASSY feed starts rotating under the drive from the  
main drive ASSY, and feeds paper from the manual feed tray.  
After having rotated one turn, the gear MSI and gear idler are disengaged at the notch  
of the gear MSI, drive is not transmitted any more, and the roll ASSY feed stops  
rotating. Thus sheets of paper are fed one by one.  
Roll DUP  
The roll DUP rotates under the drive from the motor ASSY DUP and feeds paper  
printed on simplex returned from the chute ASSY exit to the roll turn (refer to "5.3  
Housing ASSY Retard)".  
III-30  
5.5.2 Reference diagram  
SENSOR PHOTO(Full Stack Sensor)  
SENSOR PHOTO(DUP Jam Sensor)  
ROLL DUP  
Gear Idier(MAIN DRIVE ASSY)  
GEAR MSI  
ROLL ASSY FEED  
SENSOR PHOTO(MSI No Paper Sensor)  
SOLENOID FEED MSI  
Fig.3-38  
III-31  
5.6  
Chute ASSY Exit  
5.6.1 Major functions  
Motor ASSY DUP  
Supplies drive to the roll exist, roll MID, and roll DUP.  
Roll exit  
The roll exit rotates under the drive from the motor ASSY DUP, and feeds fixed prints  
onto the top cover. It reverses in the duplex document mode and feeds the prints after  
fixed on simplex in the REGI direction.  
Roll MID  
The roll MID rotates under the drive from the motor ASSY DUP, and feeds fixed prints  
onto the top cover. It reverses in the duplex document mode and feeds the prints after  
fixed on simplex in the REGI direction.  
5.6.2 Reference diagram  
ROLL MID  
MOTOR ASSY DUP  
ROLL EXIT  
Fig.3-39  
III-32  
5.7  
Transfer Roll Cartridge ASSY & Fuser  
5.7.1 Major functions  
Fuser ASSY  
The fuser ASSY fixes toner which was transferred onto the paper but not fixed by the  
heat and pressure and feeds paper before and after being fixed.  
The fuser ASSY mainly consists of the following parts:  
Heat roll  
Belt unit  
Heater lamp  
Thermostat  
Temp sensor  
Roll ASSY exit  
Exit sensor  
Exit sensor  
Detects passage of print after fixed based on the change of position of the  
actuator.  
Transfer roll cartridge unit ASSY  
The transfer roll cartridge unit ASSY consists of a transfer roll cartridge and a waste  
toner recovery system.  
The transfer roll cartridge is opposed to the IDT 2 in the print head cartridge ASSY and  
transfer the toner image on the IDT 2 onto the paper.  
Fan fuser  
The fan fuser exhausts the heat of fuser ASSY to prevent inside temperature from  
overheating.  
III-33  
5.7.2 Reference diagram  
FUSER ASSY  
Exit Sensor  
FAN FUSER  
Transfer Roll Cartridge UNIT ASSY  
Fig.3-40  
III-34  
5.8  
Xerographics  
5.8.1 Major functions  
Scanner ASSY  
Scanner ASSY (raster output scanner assembly) is an exposure unit to generate laser  
beams to form electrostatic latent image on the drum surface.  
In this manual, the scanner ASSY is referred to as scanner ASSY.  
The scanner ASSY mainly consists of the following parts:  
LD ASSY  
Lens  
Scanner ASSY  
SOS PWB  
Mirror  
Window  
Print head cartridge ASSY  
Print head cartridge ASSY carries out a series of operation in the print process such as  
charging, developing and transfer.  
Print head cartridge ASSY mainly consists of the following parts.  
Drum (Y)  
Drum (M)  
Drum (C)  
Drum (K)  
HTC (Y)  
Developer (Y)  
Developer (M)  
Developer (C)  
Developer (K)  
Refresher (Y)  
Refresher (M)  
Refresher (C)  
Refresher (K)  
IDT 2  
HTC (M)  
HTC (C)  
HTC (K)  
IDT 1 (2)  
IDT 1 cleaner (2)  
IDT 2 Cleaner  
Chute REGI (REGI clutch)  
The chute REGI is composed of the REGI clutch, REGI roll and metal roll.  
Drive from the main drive ASSY is transmitted to the REGI roll through the REGI  
clutch. Feeds paper from the tray, MSI and duplex path in the print head cartridge  
ASSY direction. When the paper tip reaches the chute REGI, the chute REGI has the  
paper make a loop until the REGI roll starts rotating and correct the skew (feeding the  
paper in inclined condition) of the tip of the paper.  
Sensor photo (REGI sensor)  
Detects that the paper tip has reached the chute REGI.  
(Paper present: Beam is received)  
OHP sensor ASSY  
As plain paper scatters the radiated light, the OHP sensor ASSY can capture the  
reflected light to detect the paper. The OHP paper scarcely scatters the radiated light,  
and therefore the OHP sensor ASSY cannot capture the reflected light. Thus, whether  
the paper fed from MSI is plain paper or OHP paper is judged.  
III-35  
5.8.2 Reference diagram  
Scanner ASSY  
Print Head Cartridge ASSY  
OHP SENSOR ASSY  
SENSOR PHOTO(Regi Sensor)  
CHUTE REGI(Regi Clutch)  
Fig.3-41  
III-36  
5.9  
Toner Cartridge ASSY  
5.9.1 Major functions  
Switch Toner Cartridge ASSY (Y)  
Switch Toner Cartridge ASSY (M)  
Switch Toner Cartridge ASSY (C)  
Switch Toner Cartridge ASSY (K)  
Detects whether Toner Cartridge ASSY of each color is installed or not.  
Sensor toner low (Y)  
Sensor toner low (M)  
Sensor toner low (C)  
Sensor toner low (K)  
Detects residual toner of each color.  
Holder Toner Cartridge ASSY (1) (Toner motor: Y)  
Holder Toner Cartridge ASSY (2) (Toner motor: M)  
Holder Toner Cartridge ASSY (3) (Toner motor: C)  
Holder Toner Cartridge ASSY (4) (Toner motor: K)  
The toner motor incorporated in the holder toner cartridge ASSY of each color supplies  
the drive to the agitator in the toner cartridge ASSY of each color and to auger in the  
holder toner cartridge ASSY and supplies toner to the developer incorporated in the print  
head cartridge ASSY.  
Toner Cartridge ASSY (Y)  
Toner Cartridge ASSY (M)  
Toner Cartridge ASSY (C)  
Toner Cartridge ASSY (K)  
Toner bottle containing tone of each color.  
PWBA EEPROM STD  
Printer specific information is stored.  
S-HVPS  
Supplies high voltage to perform the “tertiary transfer” and “static elimination” of the print  
process to the following components.  
Transfer Roll Cartridge in the Transfer  
Roll Cartridge unit ASSY.  
Detack saw in the Transfer Roll Cartridge  
unit ASSY.  
III-37  
5.9.2 Reference diagram  
SWITCH TCRU ASSY(Y)  
SWITCH TCRU ASSY(M)  
SWITCH TCRU ASSY(C)  
SWITCH TCRU ASSY(K)  
TONER CARTRIDGE ASSY(Y)  
TONER CARTRIDGE ASSY(M)  
TONER CARTRIDGE ASSY(C)  
TONER CARTRIDGE ASSY(K)  
S-HVPS  
PWBA EEPROM STD  
HOLDER TONER CARTRIDGE ASSY(4)  
(Toner Motor : K)  
HOLDER TONER CARTRIDGE ASSY(3)  
(Toner Motor : C)  
SENSOR TONER LOW(Y)  
SENSOR TONER LOW(M)  
SENSOR TONER LOW(C)  
SENSOR TONER LOW(K)  
HOLDER TONER CARTRIDGE ASSY(2)  
(Toner Motor : M)  
HOLDER TONER CARTRIDGE ASSY(1)  
(Toner Motor :Y)  
Fig.3-42  
III-38  
5.10 Frame & Drive  
5.10.1 Major functions  
Main drive ASSY  
Supplies the drive to parts as follows.  
Paper feeder  
Housing ASSY retard  
Chute ASSY out (MSI position)  
Chute REGI  
Print Head Cartridge ASSY (IDT 2, IDT 1,  
Drum)  
Transfer Roll Cartridge unit ASSY  
DEVE drive ASSY  
Supplies the drive to parts as follows.  
Print Head Cartridge ASSY (Developer)  
5.10.2 Reference diagram  
DEVE DRIVE ASSY  
MAIN DRIVE ASSY  
Fig.3-43  
III-39  
5.11 Electrical  
5.11.1 Major functions  
Fan  
Discharges heat out of the printer to prevent too high temperature in the printer.  
Harness ASSY AC SW  
Composed of the main switch and inlet and controls supply of AC power from the power  
source to LVPS.  
LVPS STD  
The LVP STD is provided with two types, 100/200V and 230V.  
Supplies AC power from the power source to the fuser ASSY heater and generates and  
supplies stable low voltage DC power used for the logic circuit, etc.  
LVPS contains control circuit for the heater of the fuser ASSY, in addition to the power  
circuit.  
HNB MCU with CPU  
Controls printing operation based on the communication with the print controller and  
information from the sensor/switch. Incorporates functions of HVPS.  
Major functions are as follows:  
Communication with the printer controller.  
Receive of information from the sensors or switches.  
Control of Scanner ASSY  
Supplies high voltage to parts in the print head cartridge ASSY to perform charging,  
development, primary transfer and secondary transfer of the print process to the following  
parts in the ASSY.  
HTC  
IDT 2  
Refresher  
Developer  
IDT 1  
IDT 1 Cleaner  
IDT 2 Cleaner  
PWBA HNB DRV  
Controls parts of motor and so on by the signal from the HNB MCU with CUP and sends  
information from the sensors and switches to HNB MCU with CUP. The power from the  
LVPS STD is supplied to the HNB MCU with CPU through this PWB. Also, the interlock  
switch is mounted on this PWB.  
Major functions are as follows:  
Recive of information from the sensors or switches.  
Control of toner motor in main drive ASSY, DEVE drive ASSY, fuser drive  
ASSY, motor ASSY DUP, and holder TDRU ASSY.  
Distributing low voltage DC power outputted from LVPS to each component.  
Cutting off the 24VDC circuit by the interlock switch  
Controller board  
Receives data from high-order unit (host), prints and controls the whole printer.  
III-40  
5.11.2 Reference diagram  
CONTROLLER BOARD  
PWBA HNB DRV  
HNB MCU WITH CPU  
FAN REAR  
LVPS STD  
HARNESS ASSY AC SW  
Fig.3-44  
III-41  
6.  
MODES  
6.1  
Print Mode  
There are three types of print modes, standard mode, fine mode, and high gloss mode.  
These are discriminated by the resolution (600dpi/1200dpi) and process speed (full  
speed/half speed).  
Setting the process speed to half speed and the video data transfer speed to SCANNER  
to twice the speed at 600dpi attains the resolution of 1200dpi.  
1. Standard mode  
2. Fine mode  
Used for printing with the resolution 600dpi.  
Used for printing on plain paper with the resolution 1200dpi.  
Gloss is raised by setting half speed with plain paper 600dpi.  
3. High Gloss mode  
The relation between resolution, process speed, paper, and print mode is shown below.  
Resolution/Process speed  
Paper  
Print mode  
600dpi  
1200dpi  
Simplex  
Simplex  
Duplex  
Duplex  
Standard  
Fine  
Full speed  
Full speed  
Plain paper  
Half speed  
Half speed  
Half speed  
High Gloss  
Standard  
Fine  
Half speed  
Half speed  
Half speed  
Special  
paper *1  
*1: Thick paper, Label, OHP, Envelope, Postcard  
6.2  
Operation Modes  
For the operation of the printer, the following five modes are provided.  
DIAG test mode  
The printer is ready for receiving diagnostic commands, or the printer diagnostic function  
is operating.  
Wait mode  
The printer is under the adjustment of print quality.  
Ready mode  
The printer is ready for printing.  
Printing mode  
The printer is under printing.  
Error mode  
Any error was detected in the printer.  
III-42  
7.  
CONTROL  
7.1  
Control of Paper Size  
"ON/OFF of paper size switch of switch ASSY size " and "Diag tool indication data" are  
shown in the table below.  
Note:  
Paper size switches are indicated as SW1, SW2, and SW3 from the above one.  
Paper size switch  
Diag  
indication data  
Paper size  
LEGAL14"  
LEGAL13"  
EXECUTIVE  
B5  
A4  
LETTER  
A5  
SW1  
ON  
SW2  
ON  
SW3  
ON  
00  
01  
02  
03  
04  
06  
ON  
ON  
ON  
OFF  
OFF  
OFF  
OFF  
ON  
OFF  
ON  
OFF  
ON  
ON  
ON  
OFF  
OFF  
ON  
OFF  
ON  
No cassette  
OFF  
OFF  
07  
7.2  
7.3  
Selective Control on Paper Pick-up Unit  
When not controlled by the printer controller, paper pick-up unit selected at the time of  
turning ON are as follows.  
Note:  
The paper feeder by the paper tray under the printer is called "Tray 1", and the first tray  
and the second tray in optional tray unit are called "Tray 2" and "Tray 3" respectively.  
Scanner Light Quantity Control  
The image data are entered to the laser diodes in the scanner ASSY as electric signals  
(data are expressed with high and low voltage values), and the laser diodes convert the  
image data from electric signals to optical signals (data are expressed with blinking laser  
beams).  
Variations in light quantity of laser beams or variations in optical system (such as lenses)  
or drum sensitivity cannot attain proper electrostatic image, and accordingly the laser  
diodes monitor the light quantity of laser beams to control the light quantity so as to attain  
stable and proper electrostatic image.  
The scanner in this printer has four laser diodes for yellow, magenta, cyan, and black  
respectively, and the light quantity is automatically adjusted for each color.  
7.4  
Process Control  
For a stable printing, the parameters related to the image forming must be corrected as  
necessary. The control of entire printing process including parameter correction control  
is called "process control".  
Mainly, the following two controls are made:  
Potential control  
Toner density control  
To supplement these two controls, the following controls are provided:  
High area coverage mode  
Admix mode  
Holder ASSY CTD LED light quantity setting  
III-43  
7.4.1 Potential control  
To attain stable printing image density, the drum charging voltage and the developing DC  
voltage are adjusted according to the developing capability of each color carrier that  
varies momentarily. The adjusted drum charging voltage and the developing DC voltage  
are fed back to keep the printing image density constant.  
The potential control is made immediately before the start of printing, if either of the  
following conditions is satisfied:  
At the first printing after the power on  
When cumulative print count after the power on exceeds 16  
When a cleaning cycle is executed during continuous printing  
The outline of control is as follows.  
1) The sensor HUM TEMP (temperature and humidity sensor) detects the  
temperature and humidity, and sets target values of drum charging voltage and  
developing DC voltage.  
2) The patches of respective colors (yellow, magenta, cyan, and black) for the  
potential control are generated and transferred on the transfer roll cartridge. (For  
the shape of patches, see the following figure.)  
About 11mm  
About 12mm  
Y
About 3mm  
M
About 57mm  
C
K
Fig.3-45  
3) The holder ASSY CTD (density sensor) detects the density of the area on  
transfer roll cartridge where no toner is present and the density of patches.  
4) The density measured in step 3) is compared with target value set in step 1) to  
change the drum charging voltage and the developing DC voltage for each color  
according to a difference.  
III-44  
7.4.2 Toner density control  
The toner density must be kept constant to attain stable printing image. To keep the  
toner density constant, the toner should be dispensed exactly by the quantity consumed  
for the printing. This system is the PCDC. However, the system with only the PCDC  
generates a difference from target toner density, thus requiring the system to correct this  
error. This is the toner density control by the holder ASSY CTD. These two control  
systems are altogether called the toner density control.  
1) PCDC (Pixel count dispense control)  
The toner quantity consumed in the developing process is calculated by counting the  
video signals entered to the scanner ASSY. The video signal counting is made by  
the charging and discharging of the capacitor in the CR circuit arranged in parallel to  
the video signal line. The consumed toner quantity is calculated by the toner  
dispense time. The Toner Motor in the holder toner cartridge ASSY is driven by the  
amount of calculated toner dispense time to supply the toner into the developer.  
2) ADC (Auto density control)  
The patches of respective colors (yellow, magenta, cyan, and black) for the toner  
density control are generated under specified potential condition, and transferred on  
the transfer roll cartridge. The holder ASSY CTD measures this density. The  
measured value is compared with reference value, and if the toner density is low, the  
toner dispense quantity is increased at the next printing, or if the toner density is  
high, the toner dispense quantity is reduced at the next printing. The toner dispense  
quantity is calculated by the toner dispense time. This calculation is made for each  
color.  
ADC is made after the completion of printing, if either of the following conditions is  
satisfied:  
When cumulative print count after the power on exceeds 16  
When a cleaning cycle is executed during continuous printing  
3) Example of toner dispensation  
The toner motor revolves for the duration of the specified time per 1-time  
dispensation. The toner dispense time in 1) and 2) above is calculated with the  
number of revolutions of toner motor. In the following description, this is called the  
dispense count.  
The dispense count calculated by the ADC is cancelled in the subsequent 8 prints.  
If 16 dispense counts were calculated as a lack of toner by the ADC, the toner is  
dispensed additionally to the dispense count calculated by the PCDC by 2 counts  
(16(8=2) in the subsequent 8 prints.  
Or, if 16 dispense counts were calculated as an excess of toner by the ADC, the  
toner is dispensed by subtracting from the dispense count calculated by the PCDC in  
the subsequent 8 prints. If the excess amount cannot be subtracted in 8 prints, the  
remainder is subtracted in 9 and subsequent prints.  
Total dispense counts  
4
5
3
4
2
2
3
4
3
2
Even allotment in first 8 prints  
Correction amount by ADC +16  
Dispense counts by PCDC  
2
3
1
2
0
0
1
2
3
2
Correction amount by ADC -8  
Total dispense counts  
1
2
0
1
0
0
0
0
2
2
Fig.3-46  
III-45  
7.4.3 High area coverage mode  
A continuous printing of the image of area coverage exceeding the toner dispense  
capability causes the toner density in the developer to be lowered.  
The high area coverage mode extends the next page feed and dispenses the toner  
during this time, if the toner dispense time reached the specified value during a  
continuous printing.  
7.4.4 Admix mode  
Even the high area coverage mode may not be able to cope with the reduction of toner  
density in the developer. Also, if the machine used in high humidity environment is  
relocated to the place in low humidity environment, the reference value of toner density is  
different in respective environments, thus causing large discrepancy between measured  
value by holder ASSY CTD and reference value of toner density.  
The admix mode dispenses the toner immediately to prevent the reduction of toner  
density, if the patch density result measured by the holder ASSY CTD is far lower than  
the reference value when the patches for toner density control are generated.  
7.4.5 LED light quantity control of holder ASSY CTD  
The holder ASSY CTD is a reflection type density sensor that radiates the light to an  
objective from the LED in the sensor and detects the reflected light from the objective to  
output electric signal according to the light quantity. For exact density measurement, the  
sensor output value (reflected light quantity) must be the specified value when no toner is  
put on the transfer roll cartridge as an objective. The reflected light quantity varies  
depending on the transfer roll cartridge surface condition or dirty condition of holder  
ASSY CTD surface. The light quantity emitted from the LED is controlled so that the  
reflected light quantity satisfies the specified value.  
This control is made in two ways; one to set the light quantity so that the reflected light  
quantity satisfies the specified value, and one to adjust the subsequent light quantity to be  
within the tolerance.  
1) Light quantity setting  
The reflected light quantity may vary largely, if the transfer roll cartridge unit ASSY  
was replaced or the holder ASSY CTD was cleaned. Assuming this fact, the light  
quantity is set when the power is turned on, or the front cover is opened and closed.  
The light quantity of LED is increased gradually, and the set value is fixed when the  
output of holder ASSY CTD exceeds the specified value. At this time, if the output of  
holder ASSY CTD does not reach the specified value even though the light quantity  
is increased to the upper limit, the controller judges the sensor as dirty. Also, the  
controller judges the sensor as faulty in the event of extremely high output.  
2) Light quantity adjustment  
At the execution of ADC, the light quantity adjustment is made immediately before  
the patches for toner density control are generated.  
The light is emitted from the LED with current setting of light quantity to check if the  
output value of the holder ASSY CTD is within the specified range. If the output value  
is low, the light quantity is increased by the specified amount at the next ADC, or if  
high, the light quantity is reduced at the next ADC.  
At this time, if the output value is less than the first lower limit, the controller judges  
the sensor as dirty and outputs the warning. Further, if less than the second lower  
limit, the controller judges the sensor as faulty and stops the printing.  
III-46  
7.5  
Color Registration Control  
The printer uses a tandem system where the drums and developers exclusively for  
yellow, magenta, cyan, and black are arranged respectively. The images are formed on  
the drums of respective colors cyan, and black are arranged respectively. The images  
are formed on the drums of respective colors registration control calculates how much  
the registration is shifted, and adjusts the scanner write timing.  
The color registration control is made from a change in inside temperature and the print  
count at the execution of the process control.  
The control is outlined below:  
1) With no toner put on the transfer roll cartridge, the output value of holder ASSY CTD  
is measured to determine the threshold value.  
2) The patches for color registration control are generated on the transfer roll cartridge.  
These patches are composed of 10mm lines of K, C, K, M, K, and Y in this order by  
the amount of four dispense counts, led by a black trigger.  
10mm  
K
K
C
K
M
K
Y
About one turn of  
Transfer roll cartridge  
Fig.3-47  
3) The density of patches generated by the holder ASSY CTD is read.  
4) The adjusting amount of registration shift is calculated from the threshold value  
determined in 1) and the patch density measured in 3).  
5) The scanner write timing is changed from the adjusting amount of registration shift.  
III-47  
7.6  
Transfer Roll Cartridge Unit ASSY Control  
7.6.1 Detecting the installation of transfer roll cartridge unit ASSY  
Whether the transfer roll cartridge unit ASSY is installed is detected when the power is  
turned on, or the front cover is opened and closed. The sensor for detecting the  
installation is not provided, but judgment is made from the output of the holder ASSY  
CTD.  
The light is emitted from the LED of holder ASSY CTD with the specified light quantity,  
and if the output of the holder ASSY CTD is larger than the specified value, the controller  
judges as installation. If the operation stops by a jam, the toner image could be put on  
the transfer roll cartridge and in such a case, the sensor output is reduced, causing the  
controller to judge as uninstallation. To prevent this wrong detection, the transfer roll  
cartridge is rotated by a half turn if the output is less than the specified value. Then,  
when the output of the holder ASSY CTD is larger than the specified value, the controller  
judges as installation, or if less than the specified value, the controller judges as  
uninstallation.  
7.6.2 Detecting the life of transfer roll cartridge unit ASSY  
The transfer roll cartridge unit ASSY consists of a transfer roll cartridge and a waste toner  
recovery system. The life of the transfer roll cartridge unit ASSY is detected when the  
toner recovery space has become full.  
The full toner recovery space is detected by the sensor TNR full.  
1) Check timing of full waste toner recovery space  
When the power is turned on, or the front cover is opened and closed  
When paper is outputted  
2) Output of " Transfer Roll Cartridge Life Warning"  
The " Transfer Roll Cartridge Life Warning" is outputted when the sensor TNR full  
detects the full toner recovery space.  
3) Output of " Transfer Roll Cartridge Life Error"  
After the output of " Transfer Roll Cartridge Life Warning", the print count and the  
toner dispense time are counted up, and if total counts exceed the specified value,  
the " Transfer Roll Cartridge Life Error" is outputted.  
4) Reset of " Transfer Roll Cartridge Life Warning"/" Transfer Roll Cartridge Life Error"  
The " Transfer Roll Cartridge Life Warning" and " Transfer Roll Cartridge Life Error"  
are reset, if the sensor TNR full does not detect the full toner recovery space when  
the power is turned on, or the front cover is opened and closed.  
III-48  
7.7  
Toner Control  
Whether the toner bottle is installed is detected by the switch toner cartridge ASSY, and  
the presence of toner in the toner bottle is detected by the sensor toner low. These  
switches and sensors are provided for respective colors, and detection is made for each  
color.  
7.7.1 Sensor toner low  
The sensor toner low is provided for each color, but the printer cannot detect all colors at  
a time, but detects one color each. It detects one color per 3.5 seconds, thus requiring  
14 seconds for detecting four colors. Accordingly, the presence of toner is detected once  
per 14 seconds for each color.  
The sensor toner low is attached to the holder toner cartridge ASSY, and it detects the  
presence of toner dispensed by the toner motor from the toner bottle into the holder toner  
cartridge ASSY.  
Also, the sensor toner low could make a wrong detection if the toner sticks to the sensor  
surface. To prevent this, the film attached in the vicinity of the auger in the holder toner  
cartridge ASSY cleans the sensor surface when the toner is dispensed. This film rotates  
together with the auger at the toner dispensation to scrape the toner off the sensor toner  
low surface. However, the sensor may detect the toner even if the toner is not present or  
may not detect the toner even if the toner is present, depending on the film position when  
the toner motor stopped. This is avoided by the printer internal control.  
7.7.2 Toner presence control  
The control is outlined below.  
1) Check timing  
When the power is turned on, or the front cover is opened and closed  
Every 14 seconds  
2) Output of "Toner Empty Warning"  
The "Toner Empty Warning" is outputted, if the sensor toner low detects toner empty  
two ore more times continuously and also the toner is dispensed during the time of  
2-time detection. This is taken place to prevent a wrong detection depending on the  
film position as described in"7.7.1 Sensor toner low".  
3) Output of "Toner Empty Error"  
After the output of "Toner Empty Warning", the toner dispense time is counted up,  
and if it exceeds the specified value, the "Toner Empty Error" is outputted.  
4) Reset of "Toner Empty Warning"/"Toner Empty Error"  
After the output of "Toner Empty Error", the toner is dispensed for 1.5 seconds when  
the toner bottle installation is detected. At the subsequent toner presence control  
timing, if the sensor toner low detects the toner presence, the "Toner Empty  
Warning" and "Toner Empty Error" are reset.  
However, in such a case, the controller regards this status as "toner empty". When  
the toner is dispensed and the sensor toner low detects the toner presence three or  
more times continuously, the controller regards this status as "toner presence".  
III-49  
7.8  
7.8.1 Fuser temperature control  
As for the fuser temperature control, the target temperature is set, then the heat roll  
Fuser Control  
surface temperature is controlled so as to be the target temperature by turning on/off the  
heater lamp.  
The heat roll surface temperature is detected by the temp sensor. The temp sensor  
detects the temperature and the resistance value for disconnection sensing alternately at  
40ms cycles. That is, the temperature is detected at 80ms cycles, and if the detection  
result is higher than target value, the heater lamp is turned off, or if lower, the heater  
lamp is turned on.  
For the target temperature, different temperature is set respectively at the time of  
standby, printing, and process control. Also, target temperature is changed according to  
the inside temperature detected with the sensor HUM TEMP, print count, print mode, and  
input power supply voltage.  
7.8.2 Cool down  
As the printing continues, the temperature distribution of the heat roll becomes uneven  
between paper path and non-paper path. To make the heat roll temperature as even as  
possible, the waiting time is provided, during which the heater lamp is not turned on. This  
is called the cool down.  
The cool down is executed for the duration of certain time according to the number of  
sheets continuously printed, when the set printing with certain type and size of paper  
completed.  
Also, when the paper type or size was changed, the cool down is inserted even in the  
midway of several hundred sheets of printing.  
As a simple cool down, the PPM down is provided. This function idles the fuser without  
feeding the sheets during the printing to improve uneven temperature distribution of the  
heat roll.  
In printing certain type/size of paper continuously, the page interval is increased from the  
specified print counts and the prints per minute are reduced, and thus it is called PPM  
down.  
The PPM execution timing is determined depending on the paper size and type.  
III-50  
CHAPTER IV  
ASSEMBLY / DISASSEMBLY  
CONTENTS  
CHAPTER IV ASSEMBLY / DISASSEMBLY................................ IV-1  
1. BEFORE STARTING DISASSEMBLY........................................................ IV-1  
1.1 Precautions ......................................................................................................................IV-1  
1.2 Fuser ASSY Removal ......................................................................................................IV-2  
1.3 Transfer ASSY Removal..................................................................................................IV-3  
1.4 Controller Board Removal................................................................................................IV-4  
1.5 Description of Procedures................................................................................................IV-5  
2. DISASSEMBLY PROCEDURE...................................................................IV-6  
2.1 Cover of the Printer ..........................................................................................................IV-6  
2.1.1 Cover ASSY front head .............................................................................................IV-6  
2.1.2 Console panel............................................................................................................IV-7  
2.1.3 Fan fuser....................................................................................................................IV-8  
2.1.4 Cover MSI..................................................................................................................IV-9  
2.1.5 Tray ASSY base ........................................................................................................IV-9  
2.1.6 Cover ASSY front L .................................................................................................IV-10  
2.1.7 Cover ASSY front R.................................................................................................IV-11  
2.1.8 Cover top main ........................................................................................................IV-12  
2.1.9 Cover side L.............................................................................................................IV-13  
2.1.10 Cover ASSY top print head cartridge.....................................................................IV-13  
2.1.11 Cover side R..........................................................................................................IV-14  
2.1.12 Cover rear..............................................................................................................IV-14  
2.1.13 Link: L ....................................................................................................................IV-15  
2.1.14 Link: R....................................................................................................................IV-15  
2.2 Front of the Printer .........................................................................................................IV-16  
2.2.1 Chute ASSY out.......................................................................................................IV-16  
2.2.2 Actuator full..............................................................................................................IV-18  
2.2.3 Sensor photo: full stack ...........................................................................................IV-18  
2.2.4 Actuator DUP...........................................................................................................IV-19  
2.2.5 Sensor photo: DUP..................................................................................................IV-20  
2.2.6 Actuator MSI............................................................................................................IV-20  
2.2.7 Sensor photo: MSI...................................................................................................IV-21  
2.2.8 Bracket ASSY eliminator .........................................................................................IV-21  
2.2.9 Roll DUP..................................................................................................................IV-22  
2.2.10 Latch out................................................................................................................IV-22  
2.2.11 Roll ASSY feed ......................................................................................................IV-23  
2.2.12 Solenoid feed MSI .................................................................................................IV-23  
2.2.13 Shaft ASSY roll feed..............................................................................................IV-24  
2.2.14 Plate ASSY bottom MSI.........................................................................................IV-25  
2.2.15 Chute ASSY exit ....................................................................................................IV-26  
2.2.16 Roll exit..................................................................................................................IV-27  
2.2.17 Roll MID.................................................................................................................IV-28  
2.2.18 Motor ASSY DUP...................................................................................................IV-29  
2.2.19 Holder ASSY CTD .................................................................................................IV-29  
2.2.20 Sensor TNR full .....................................................................................................IV-30  
2.2.21 Latch R ..................................................................................................................IV-30  
2.2.22 Latch L...................................................................................................................IV-31  
2.2.23 Fuser drive ASSY ..................................................................................................IV-31  
2.2.24 Chute ASSY REGI.................................................................................................IV-32  
2.2.25 Actuator REGI........................................................................................................IV-33  
2.2.26 Sensor photo: REGI...............................................................................................IV-33  
2.2.27 OHP sensor ASSY.................................................................................................IV-34  
2.2.28 Housing ASSY retard.............................................................................................IV-36  
2.2.29 Clutch turn .............................................................................................................IV-36  
2.2.30 Roll turn .................................................................................................................IV-37  
2.2.31 Roll ASSY retard....................................................................................................IV-37  
2.2.32 Stud retard.............................................................................................................IV-39  
2.2.33 PWBA ASSY earth ................................................................................................IV-39  
2.3 Top of the Printer............................................................................................................IV-40  
2.3.1 Holder toner cartridge ASSY unit.............................................................................IV-40  
2.3.2 Holder toner cartridge ASSY ...................................................................................IV-42  
2.3.3 Switch toner cartridge ASSY....................................................................................IV-44  
2.3.4 Sensor toner low......................................................................................................IV-44  
2.3.5 PWBA EEPROM STD .............................................................................................IV-45  
2.3.6 S-HVPS ...................................................................................................................IV-45  
2.3.7 Scanner ASSY.........................................................................................................IV-46  
2.4 Right / Left / PCBs of the Printer ....................................................................................IV-47  
2.4.1 HSG ASSY BIAS .....................................................................................................IV-47  
2.4.2 Lever drum: L...........................................................................................................IV-47  
2.4.3 Drive ASSY main ....................................................................................................IV-49  
2.4.4 PWBA HNB DRV.....................................................................................................IV-50  
2.4.5 DEVE drive ASSY....................................................................................................IV-51  
2.4.6 Actuator I/R..............................................................................................................IV-51  
2.4.7 Lever drum: R..........................................................................................................IV-52  
2.4.8 LVPS........................................................................................................................IV-54  
2.4.9 Box ASSY MCU/ESS...............................................................................................IV-55  
2.4.10 Housing ASSY contact ..........................................................................................IV-56  
2.4.11 PKG service MCU HANABI ..................................................................................IV-57  
2.5 Paper Feed of the Printer...............................................................................................IV-58  
2.5.1 Chute ASSY turn......................................................................................................IV-58  
2.5.2 Cover cassette.........................................................................................................IV-59  
2.5.3 Feeder ASSY unit ....................................................................................................IV-60  
2.5.4 Pickup ASSY ...........................................................................................................IV-61  
2.5.5 Roll ASSY feed ........................................................................................................IV-62  
2.5.6 Actuator no paper ....................................................................................................IV-63  
2.5.7 Sensor photo: No paper...........................................................................................IV-63  
2.5.8 Sensor photo: Low paper.........................................................................................IV-64  
2.5.9 Solenoid feed...........................................................................................................IV-64  
2.5.10 Clutch ASSY turn...................................................................................................IV-65  
2.5.11 Roll ASSY turn.......................................................................................................IV-66  
2.5.12 Roll ASSY..............................................................................................................IV-66  
2.5.13 Housing ASSY feeder L.........................................................................................IV-67  
2.5.14 Sensor HUM temp .................................................................................................IV-68  
2.5.15 Housing ASSY feeder R ........................................................................................IV-69  
2.5.16 Harness ASSY OPFREC.......................................................................................IV-70  
2.5.17 Switch ASSY size ..................................................................................................IV-70  
2.5.18 Indicator.................................................................................................................IV-71  
2.5.19 Guide indicator.......................................................................................................IV-72  
2.5.20 Lever low paper .....................................................................................................IV-73  
2.5.21 Roll ASSY..............................................................................................................IV-74  
2.5.22 Cassette ASSY front..............................................................................................IV-74  
2.5.23 Holder retard..........................................................................................................IV-75  
CHAPTER IV ASSEMBLY / DISASSEMBLY  
1.  
BEFORE STARTING DISASSEMBLY  
1.1  
Precautions  
Note:  
Parts are controlled as spare parts. When servicing for parts for which no procedures are  
described, observe their assembling condition before starting the service.  
Note:  
For optional parts, refer to the manual for them.  
Note:  
Though the optional parts are assumed to be removed, they may not be removed if not  
required for the purpose of service operation.  
WARNING  
When performing service operation for parts around the fuser ASSY, start the service  
after the fuser ASSY and parts around it have cooled down.  
WARNING  
Do not use force to prevent damage to parts.  
WARNING  
Since a wide variety of screws are used, be careful not to mistake their positions, to  
prevent the screw holes.  
WARNING  
Wear a wrist band or the like as far as possible to remove static electricity of the  
human body.  
Turn the power OFF and remove the power cord from the electric outlet.  
Remove the drum unit before starting the disassembling process.  
Remove the transfer unit as necessary, and perform disassembly process.  
Remove the fuser unit.  
Remove the toner cartridges.  
Remove the paper cassette from the printer.  
Remove the controller board from the printer.  
IV-1  
1.2  
Fuser ASSY Removal  
WARNING  
Fuser is high temperature after operation. Be careful when working it not to get  
burning.  
1) Release latch B and open the chute ASSY out.  
2) Open the cover ASSY top print head cartridge.  
3) Release the 2 catches on top of the fuser ASSY.  
4) Remove the fuser ASSY from the printer.  
Cover ASSY top print head cartridge  
Fuser ASSY  
Fig.4-1  
IV-2  
1.3  
Transfer ASSY Removal  
1) Release latch A and open the front ASSY in.  
2) Holding the right and left knobs securing the transfer roll cartridge unit ASSY to  
the front ASSY in, unlock and rotate the transfer roll cartridge unit ASSY  
rearwards.  
3) Extract the transfer roll cartridge unit ASSY forwards from the front ASSY in and  
remove.  
Transfer roll cartridge  
unit ASSY  
Fig.4-2  
Transfer roll cartridge unit ASSY  
Fig.4-3  
IV-3  
1.4  
Controller Board Removal  
1) Remove the cover cassette rear.  
2) From the rear side of the printer, loosen the screws that secure the controller  
board.  
3) Holding the left and right knobs on the controller board, pull out the controller  
board of the printer.  
Note:  
In replacing the controller board on the printer, connect the connector at the leading  
end of controller board to the connector of the PKG SERVICE MCU HANABI .  
Screw, M4x7.5  
Controller board  
Screw, M4x7.5  
Fig.4-4  
IV-4  
1.5  
Description of Procedures  
Note:  
In the procedures, directions are represented as follows.  
Front: Front when you are facing the front of this laser printer.  
Rear: Inner direction when you are facing the front of this laser printer.  
Left: Left hand when you are facing the front of this laser printer.  
Right: Right hand when you are facing the front of this laser printer.  
Rear  
Left  
Right  
Front  
Fig.4-5  
Note:  
The screws in the illustrations should be removed using a cross head screwdriver unless  
otherwise specified.  
Note:  
A black arrow in the illustrations indicate movement in the direction of the arrow.  
Numbered black arrows indicate the order of the movement.  
Note:  
For the positions of the connectors (P/J), refer to Chapter 7, Plug/Jack(P/J) Connector  
Locations.  
Note:  
Assembly is the harness of disassembly unless otherwise stated.  
IV-5  
2.  
DISASSEMBLY PROCEDURE  
Cover of the Printer  
2.1  
2.1.1  
Cover ASSY front head  
1) Release latch B of the printer and open the front cover.  
Note:  
Do not separate the front cover and cover ASSY front head too far in the following  
process.  
2) Release the 4 hooks securing the cover ASSY front head to the front cover.  
3) Separate the cover ASSY front head a little from the front cover.  
4) Remove the connector from the console panel.  
5) Remove the connector from the fan assembly.  
6) Remove the cover ASSY front head from the front cover.  
Cover ASSY front head  
Fig.4-6  
IV-6  
2.1.2  
Console panel  
1) Release the 3 hooks securing the console panel to the cover ASSY front head.  
2) Remove the console panel from the cover ASSY front head.  
Console panel  
Cover ASSY front head  
Bottom view  
Fig.4-7  
IV-7  
2.1.3  
Fan fuser  
1) Remove 2 screws securing the holder lever out from the rear of the cover ASSY front  
head.  
2) Remove the fan assembly from the cover ASSY front head.  
3) Remove the lever out from the holder lever out.  
4) Disconnect of the fan fuser.  
5) Release the 4 hooks securing the fan fuser the holder lever out.  
6) Remove the fan fuser from the holder lever out.  
Note:  
When replacing the fan fuser into the holder lever out, the fan level should be face out  
and the harness should be aligned with the slot.  
Screw, M3x10  
Holder lever out  
Lever out  
Top  
Fig.4-8  
Holder lever out  
Fan fuser  
Fig.4-9  
IV-8  
2.1.4  
Cover MSI  
1) Close the front cover.  
2) Open the cover MSI.  
3) While pulling the left hand side of the cover MSI, release the boss of the tray ASSY  
base from the slot in the cover MSI.  
4) Repeat for the right hand side.  
5) Lower the front of the cover MSI unit the cover MSI releases from the printer.  
Tray ASSY base  
Cover MSI  
Fig.4-10  
2.1.5  
Tray ASSY base  
1) Check that the plate ASSY bottom MSI is shifted down.  
2) Remove the tray ASSY base, by pushing inward, lifting it upwards, and pull it out  
forwards.  
Tray ASSY base  
Plate ASSY bottom MSI  
Fig.4-11  
IV-9  
2.1.6  
Cover ASSY front L  
1) Release latch B and open the chute ASSY out.  
2) Remove the top of the link: L from the leaf spring at the back of the cover ASSY front  
L.  
3) Remove 2 screws securing the cover ASSY front L to the chute ASSY out.  
4) Release the 2 hooks securing the cover ASSY front L to the chute ASSY out.  
5) Remove the cover ASSY front L from the chute ASSY out.  
Screw,  
Link: L  
M3x10  
Cover ASSY front L  
Fig.4-12  
Rear view  
Cover ASSY front L  
Fig.4-13  
IV-10  
2.1.7  
Cover ASSY front R  
Note:  
In the following process, do not separate the cover ASSY front R and link: R too far.  
1) Release latch A and open the front ASSY in together with the chute ASSY out.  
2) Remove 2 screws securing the cover ASSY front R to the front ASSY in.  
3) Pull out the cover ASSY front R slightly from the front ASSY in.  
4) Remove the top link: R from the leaf spring at the back of the cover ASSY front R  
and remove the cover ASSY front R.  
Screw, M3x10  
Cover ASSY front R  
Fig.4-14  
Top view  
Link lever R  
Cover ASSY front R  
Fig.4-15  
IV-11  
2.1.8  
Cover top main  
Note:  
Before removing the cover top main, remove the toner cartridges.  
1) Open the cover ASSY top print head cartridge.  
2) Remove 2 screws securing the cover top main to the printer.  
3) Release the 4 hooks securing the cover top main to the printer.  
4) Raise the cover top main slightly from the printer and extract the left front edge of the  
cover top main deflecting it leftward.  
5) Remove the cover top main from the printer.  
Cover top main  
Screw,  
M3x10  
Fig.4-16  
IV-12  
2.1.9  
Cover side L  
1) Remove 1 screw securing the rear of cover side L to the printer.  
2) Release the hook securing the cover side L at the front edge of the printer.  
3) Remove the cover side L from the printer.  
Cover side L  
Screw, tapping M3x8  
Fig.4-17  
2.1.10 Cover ASSY top print head cartridge  
1) Open the cover ASSY top print head cartridge.  
2) Extract the right and left stud top securing the cover ASSY top print head cartridge to  
the printer.  
3) Remove the cover ASSY top print head cartridge from the printer.  
Cover ASSY top print head cartridge  
Stud top  
Stud top  
Fig.4-18  
IV-13  
2.1.11 Cover side R  
1) Remove 1 screw securing the rear of cover side R to the printer.  
2) Release the hook securing the cover side R at the front of the printer.  
3) Remove the cover side R from the printer.  
Cover side R  
Screw, tapping M3x8  
Fig.4-19  
2.1.12 Cover rear  
1) Lift the cover rear slightly, put it backwards and remove.  
Cover rear  
Fig.4-20  
IV-14  
2.1.13 Link: L  
1) Remove the top of spring link: L from the projection on the left side of the printer.  
2) Slide the link: L rearward and align the shaft of the printer and hole of the link: L.  
3) Remove the link: L from the printer together with the spring link: L.  
4) Remove the spring link: L from the link: L.  
Spring link: L  
Link: L  
Fig.4-21  
2.1.14 Link: R  
1) Remove the top of spring link: R from the projection on the right side of the printer.  
2) Slide the link: R rearward from the printer and align the shaft of the printer and the  
hole of the link: R.  
3) Remove the link: R from the printer together with the spring link: R.  
4) Remove the spring link: R from the link: R.  
Spring link: R  
Link: R  
Fig.4-22  
IV-15  
2.2  
Front of the Printer  
Chute ASSY out  
2.2.1  
Note:  
In the following step, lock the chute ASSY out and front ASSY in to the printer with  
latches A and B.  
1) Remove 5 connectors (A-E) from left hand side of printer that connect to the chute  
ASSY out.  
2) Remove 2 lower connectors (F, G) and 1 earth connector from left hand side of  
printer that connect to the chute ASSY out.  
3) Remove 3 connectors (H-J) and 1 earth connector from the right hand side of the  
printer that connect to the chute ASSY out.  
4) Carefully remove the cables from the cable quickly taking note of the cable routing.  
5) Retake the paper feed roller to raise plate ASSY bottom MSI.  
Earth connector  
Chute ASSY out  
“G”  
“F”  
“A”  
“B”  
Left side view  
“C”  
“D”  
“E”  
Screw, M3x10  
PWBA HNB DRV  
Chute ASSY out  
“I”  
Right side view  
Earth connector  
“H”  
Screw, M3x10 “J”  
Fig.4-23  
IV-16  
6) Remove the ring E on the right and left shaft pivot securing the bottom portion of the  
chute ASSY out and front ASSY in.  
CAUTION  
In the following steps, take care not to hurt your hand with burrs of the plate ASSY  
bottom MSI.  
7) Pull out the left shaft pivot from the chute ASSY out inward with radio pliers.  
8) Pull out the right shaft pivot from the chute ASSY out inward with radio pliers.  
9) Release latch A and pull the chute ASSY out complete with front ASSY in forwards to  
remove them from the printer.  
10) Remove the strap connecting chute ASSY out to front ASSY in.  
Ring E  
Ring E  
Shaft pivot  
Fig.4-24  
11) Release latch B to separate the front ASSY in from the chute ASSY out.  
Front ASSY in  
Chute ASSY out  
Fig.4-25  
IV-17  
2.2.2  
Actuator full  
1) While pulling the center of the actuator full shaft upwards, pull the right hand end of  
the shaft forwards to clear the sensor and release the right end of the shaft.  
2) Move the shaft to the right to release the left end of the shaft and remove it.  
Actuator full  
1
3
2
Fig.4-26  
2.2.3  
Sensor photo: full stack  
1) Remove the connector on the sensor photo: full stack.  
2) Release the 3 hooks securing the sensor photo: full stack to the chute ASSY out.  
3) Remove the sensor photo: full stack from the chute ASSY out.  
Sensor photo: full stack  
Fig.4-27  
IV-18  
2.2.4  
Actuator DUP  
1) Release the 2 hooks securing the cover actuator to the chute ASSY out.  
2) Remove the cover actuator from the chute ASSY out.  
3) Pushing the front arm of the actuator DUP down, slide the actuator DUP to the right  
and extract the left side shaft of the actuator DUP from the left side bush.  
4) Extract the actuator DUP from the chute ASSY out together with the spring SNR  
DUP.  
5) Remove the spring SNR DUP from the actuator DUP.  
Cover actuator  
Fig.4-28  
Spring SNR DUP  
2
3
1
Actuator DUP  
Fig.4-29  
IV-19  
2.2.5  
Sensor photo: DUP  
1) Remove the sensor photo: DUP cable.  
2) Release the 3 hooks securing the sensor photo: DUP to the chute ASSY out.  
3) Remove the sensor photo: DUP from the chute ASSY out.  
Sensor photo: DUP  
Fig.4-30  
2.2.6  
Actuator MSI  
1) Pushing down the plate bottom MSI on the chute ASSY out push the actuator MSI  
inward.  
2) Slide the actuator MSI leftward and remove the shaft from the right side of the  
actuator MSI.  
3) Remove the actuator MSI together with the spring sensor MSI.  
4) Remove the spring sensor MSI from the actuator MSI.  
Sensor photo: MSI  
Spring sensor MSI  
Actuator MSI  
Fig.4-31  
IV-20  
2.2.7  
Sensor photo: MSI  
1) Remove the connector on the sensor photo: MSI from the chute ASSY out.  
2) Release the 3 hooks securing the sensor photo: MSI to the chute ASSY out.  
3) Remove the sensor photo: MSI from the chute ASSY out.  
Sensor photo: MSI  
Rear view  
Fig.4-32  
2.2.8  
Bracket ASSY eliminator  
1) Remove 1 screw securing the bracket ASSY eliminator to the chute ASSY out.  
2) Raising the left end of the bracket ASSY eliminator upward, pull out the bracket  
ASSY eliminator toward the left to remove from the chute ASSY out.  
Bracket ASSY eliminator  
Screw, M3x10  
Chute ASSY out  
Fig.4-33  
IV-21  
2.2.9  
Roll DUP  
1) Release the hook remove the gear 30 from the shaft of the roll DUP.  
2) Extract the bush earth securing the left end of the shaft to the chute ASSY out.  
3) Remove the E-ring securing the right end of the shaft to the chute ASSY out.  
4) Extract the bush securing the right end of the shaft to the chute ASSY out.  
5) Remove the roll DUP.  
Roll DUP  
Chute ASSY out  
Bush  
Bush earth  
Gear 30  
Fig.4-34  
2.2.10 Latch out  
1) Remove the spring latch out from the chute ASSY out.  
2) Release the 2 hooks securing the holder latch to the chute ASSY out.  
3) Slide the holder latch to the right to remove it from the chute ASSY out together with  
the latch out.  
4) Remove the latch out from the holder.  
Spring latch out  
Holder latch  
Latch out  
Fig.4-35  
IV-22  
2.2.11 Roll ASSY feed  
1) Release the hook securing the roll core MSI: right to the shaft MSI on the chute  
ASSY out and push down the plate bottom MSI slightly to release the nip with the roll  
ASSY feed.  
2) Slide the roll ASSY feed to the right on the shaft MSI and lift out the roll ASSY feed  
forwards.  
Roll core MSI: right  
Plate bottom MSI  
Roll ASSY feed  
Fig.4-36  
2.2.12 Solenoid feed MSI  
1) Release the hook of the spring sol from the convex portion on the stopper sol from  
the left side of the chute ASSY out.  
2) Remove the connector of the solenoid feed MSI from the chute ASSY out.  
3) Remove 1 screw securing the solenoid feed MSI to the chute ASSY out.  
4) Remove the solenoid feed MSI from the chute ASSY out.  
Stopper sol  
Spring sol  
Screw, tapping M3x8  
Solenoid feed MSI  
Fig.4-37  
IV-23  
2.2.13 Shaft ASSY roll feed  
1) Release the hook of the spring sol from a convex portion on the stopper sol cam  
from the chute ASSY out.  
2) Release the hook securing the stopper sol cam to the left of shaft MSI, and remove  
the stopper sol cam from the shaft from the chute ASSY out.  
3) Release the hook securing the gear MSI to the right of shaft MSI, and remove the  
gear MSI from the chute ASSY out.  
4) Release the hooks of spring N/F MSI from the left and right ends of shaft ASSY roll  
feed.  
5) Release the hook securing the cam MSI to the shaft MSI, and move the cam MSI to  
the center.  
Spring N/F MSI  
Stopper  
sol cam  
Shaft ASSY roll feed  
Left  
Cam MSI  
Front  
Cam MSI  
Right  
Gear MSI  
Chute ASSY out  
Spring N/F MSI  
Fig.4-38  
IV-24  
6) Pull off the bush MSI on the shaft MSI toward the inside.  
7) Raising the right end of the shaft ASSY roll feed, pull out the shaft ASSY feed from  
the chute ASSY out.  
Note:  
When refitting the cam MSI ensure that it is located connecting on the shaft.  
When refitting the stopper sol cam, ensure it is in the home position.  
Bush MSI  
Shaft ASSY roll feed  
Bush MSI  
Fig.4-39  
2.2.14 Plate ASSY bottom MSI  
1) Remove 2 screws securing the plate out MSI to the chute ASSY out.  
2) Remove the plate out MSI from the chute ASSY out together with the plate ASSY  
bottom MSI.  
3) Remove the plate ASSY bottom MSI from the plate out MSI.  
Screw, M3x10  
Plate ASSY bottom MSI  
Screw, M3x10  
Left  
Plate out MSI  
Front  
Fig.4-40  
Right  
IV-25  
2.2.15 Chute ASSY exit  
1) Disconnect the connector of the motor ASSY DUP on the chute ASSY out and  
release the cable from the clips.  
2) Remove 2 screws securing the chute ASSY exit to the chute ASSY out.  
3) Pull out the chute ASSY exit from the left side surface of the chute ASSY out.  
Note:  
When replacing the chute ASSY exit, be careful to avoid the actuator full on the chute  
ASSY out.  
Actuator full  
Chute ASSY exit  
Screw, M3x10  
Left  
Fig.4-41  
IV-26  
2.2.16 Roll exit  
1) Release the hook securing the gear roll to the shaft of the roll exit.  
2) Remove the gear roll from the shaft of the roll exit.  
3) Remove the E-ring from the shaft of the roll exit.  
4) Extract the bush earth from the shaft of the roll exit.  
5) Raise the right hand end of the shaft from the chute ASSY exit and pull out the roll  
exit upwards.  
Roll exit  
Right  
Chute ASSY exit  
Bush earth  
Gear roll  
Left  
Fig.4-42  
IV-27  
2.2.17 Roll MID  
1) Release the hook securing the gear roll to the shaft of the roll MID.  
2) Remove the gear roll from the shaft.  
3) Remove the E-ring from the shaft of the roll MID.  
4) Extract the bush earth from the shaft of the roll MID.  
5) Remove the shaft of the roll MID from the chute ASSY exit and pull out the roll exit  
upwards.  
Roll MID  
Right  
Bush earth  
Chute ASSY exit  
Gear roll  
Left  
Fig.4-43  
IV-28  
2.2.18 Motor ASSY DUP  
1) Release the hook securing the gear roll to the shaft of the roll exit.  
2) Remove the gear roll from the shaft of the roll exit.  
3) Release the hook securing the gear roll to the shaft of the roll MID from the chute  
ASSY exit.  
4) Remove the gear roll from the shaft of the roll exit.  
5) Remove the gear 40/42 from the left side of the chute ASSY exit.  
6) Remove the gear 48 from the left side of the chute ASSY exit.  
7) Remove 2 screws securing the motor ASSY DUP to the chute ASSY exit.  
8) Remove the motor ASSY DUP from the chute ASSY exit.  
Gear roll: exit  
Gear roll: MID  
Motor ASSY DUP  
Gear 40/42  
Gear 48  
Screw, M3x6  
Chute ASSY exit  
Fig.4-44  
2.2.19 Holder ASSY CTD  
1) Release the 4 hooks securing the holder ASSY CTD to the front ASSY in.  
2) Raise the holder ASSY CTD slightly from the front ASSY in and pull out the  
connector.  
3) Remove the holder ASSY CTD from the front ASSY in together with the spring CTD.  
4) Remove the spring CTD from holder ASSY CTD.  
Holder ASSY CTD  
Front ASSY in  
Spring CTD  
Spring CTD  
Fig.4-45  
IV-29  
2.2.20 Sensor TNR full  
1) Release the 2 hooks securing the sensor TNR full to the front ASSY in.  
2) Remove the connector on the sensor TNR full.  
3) Remove the sensor TNR full from the front ASSY in.  
Sensor TNR full  
Front  
Fig.4-46  
2.2.21 Latch R  
1) Release the hook at the lower part of the spring latch securing it to the hole on the  
right side of the front ASSY in.  
2) Release the hook securing the latch R to the front ASSY in.  
3) Pull out the latch R from the front ASSY in together with the shaft latch and the spring  
latch.  
4) Remove the spring latch from the latch R.  
5) Pull out the shaft latch from the latch R.  
Front ASSY in  
Shaft latch  
Latch R  
Spring latch  
Fig.4-47  
IV-30  
2.2.22 Latch L  
1) Release the hook securing the latch L to the left side of the front ASSY in.  
2) Remove the latch L from the front ASSY in.  
Front ASSY in  
Latch L  
Fig.4-48  
2.2.23 Fuser drive ASSY  
1) Remove the screw securing the earth of the harness ASSY FSR to the fuser drive  
ASSY.  
2) Release the harnesses from the harness guides.  
3) Remove 3 screws securing the fuser drive ASSY to the front ASSY in.  
4) Remove the fuser drive ASSY from the front ASSY in.  
Front ASSY in  
Screw, M3x8  
Screw, M3x8  
Fuser drive ASSY  
Screw,  
Screw, M3x8  
M3x6  
Fig.4-49  
IV-31  
2.2.24 Chute ASSY REGI  
1) Release the 2 hooks securing the housing ASSY ELEC to the printer and remove the  
housing ASSY ELEC upward.  
Housing ASSY ELEC  
Fig.4-50  
2) Disconnect the 2 connectors of the chute ASSY REGI from the printer.  
3) Remove 4 screws securing the chute ASSY REGI to the printer.  
4) Lift the left end of the chute ASSY REGI and pull out the chute ASSY REGI leftwards  
from the printer.  
Note:  
Take care not to damage the plastic film when refitting the chute ASSY REGI.  
Screw, M3x10  
Chute ASSY REGI  
Screw, M3x10  
Fig.4-51  
IV-32  
2.2.25 Actuator REGI  
1) Holding the shielding portion of the actuator REGI move the actuator REGI left and  
extract the right hand end of the shaft of the actuator REGI from the bush of the  
chute ASSY REGI.  
2) Pull out the actuator REGI from the chute ASSY REGI together with the spring  
sensor REGI.  
3) Remove the spring sensor REGI from the actuator REGI.  
Spring sensor REGI  
Actuator REGI  
Front  
Chute ASSY REGI  
Top  
Fig.4-52  
2.2.26 Sensor photo: REGI  
1) Release the 3 hooks securing the sensor photo: REGI to the chute ASSY REGI.  
2) Remove the sensor photo: REGI from the chute ASSY REGI.  
3) Remove the connector from the sensor photo: REGI.  
Sensor photo: REGI  
Chute ASSY REGI  
Fig.4-53  
IV-33  
2.2.27 OHP sensor ASSY  
1) Remove the E-ring that secures the gear REGI metal to the chute ASSY REGI, and  
remove the gear REGI metal.  
2) Remove the E-ring that secures the gear REGI rubber to the chute ASSY REGI, and  
remove the gear REGI rubber.  
3) Pull out the bush earth that secures the shaft of the roll REGI rubber.  
Note:  
In the following steps, take care not to lose the spring REGI: R and spring REGI: L as  
they will spring.  
4) Remove the spring REGI: L from the right side of chute ASSY REGI using a mini  
screwdriver. Remove the spring REGI: R from the left side of the chute ASSY  
REGI.  
Spring REGI: L  
Spring REGI: L  
Gear REGI metal  
Chute ASSY REGI  
Bush earth  
Fig.4-54  
Gear REGI rubber  
5) From the left side of chute ASSY REGI, remove the screw that secures the bracket  
ASSY.  
6) Remove the bush metal L (black).  
Bracket  
Chute ASSY REGI  
Bush metal: L  
Fig.4-55  
IV-34  
7) Lift the shaft of roll REGI metal, pull out the roll REGI metal together with the bush  
metal R (white).  
Roll REGI metal  
Chute ASSY REGI  
Fig.4-56  
8) Release the 2 hooks on the bottom of chute ASSY REGI that secure the OHP  
sensor ASSY.  
9) Remove the OHP sensor ASSY from the chute ASSY REGI.  
Sensor ASSY OHP  
Rear  
Fig.4-57  
IV-35  
2.2.28 Housing ASSY retard  
1) Remove the connector of the clutch turn from on the PWBA HB MCU.  
2) Remove 3 screws securing the housing ASSY retard to the printer.  
3) Remove the housing ASSY retard from the printer.  
Screw, M3x10  
Screw, M3x10  
Housing ASSY retard  
Fig.4-58  
2.2.29 Clutch turn  
1) Remove the E-ring securing the clutch turn to the shaft of the housing ASSY retard.  
2) Remove the clutch turn from the shaft of the housing ASSY retard.  
Housing ASSY retard  
Clutch turn  
Fig.4-59  
IV-36  
2.2.30 Roll turn  
1) Remove the E-ring securing the roll turn to the housing ASSY retard.  
2) Pull out the bush earth securing the left side of the roll turn from the housing ASSY  
retard.  
3) Pull out the bush securing the right side of the roll turn from the housing ASSY  
retard.  
4) Slide the roll turn from the housing ASSY retard rightward, and pull out the roll turn  
left and upward.  
Roll turn  
Bush earth  
Bush  
Housing ASSY retard  
Fig.4-60  
2.2.31 Roll ASSY retard  
1) Push back the rear edge of the holder ASSY retard from the housing ASSY retard,  
and turn the holder ASSY retard to the rear.  
2) Sliding the holder ASSY retard rightward, pull the left shaft of holder ASSY retard  
out of the bush bore in the housing ASSY retard.  
Holder ASSY retard  
Fig.4-61  
IV-37  
3) Pull out the holder ASSY retard to left upward from the housing ASSY retard.  
4) Release the hook securing the shaft RTD to the holder ASSY retard of the printer.  
Holder ASSY retard  
Fig.4-62  
5) Raise the shaft RTD to right upward, and pull out the roll ASSY retard.  
Holder ASSY retard  
Roll ASSY retard  
Fig.4-63  
IV-38  
2.2.32 Stud retard  
1) Release the 2 hooks securing the cap retard to the housing ASSY retard.  
2) Remove the cap retard from the housing ASSY retard together with the stud retard  
and spring retard 370.  
3) Remove the stud retard from the cap retard.  
Housing ASSY retard  
Stud retard  
Spring retard  
Cap retard  
Fig.4-64  
2.2.33 PWBA ASSY earth  
1) Remove 2 screws securing the PWBA ASSY earth to the printer.  
2) Remove the PWBA ASSY earth from the printer.  
PWBA ASSY earth  
Fig.4-65  
IV-39  
2.3  
Top of the Printer  
Holder toner cartridge ASSY unit  
Note:  
2.3.1  
When removing the holder toner cartridge ASSY unit, remove the toner deposit on the  
holder toner cartridge ASSY with a vacuum cleaner before starting the removal process.  
Note:  
When removing the toner deposit on the holder toner cartridge ASSY with a vacuum  
cleaner, attach an earth cord to the end of the cleaner to avoid the static electricity.  
Note:  
When removing the toner deposit on the holder toner cartridge ASSY, be careful not to  
allow the toner to fly to the sensors on the holder toner cartridge ASSY by the static  
electricity.  
Note:  
Do not touch the sensor face.  
1) Remove the connector (A) of fan rear on the LVPS STD from the right side of the  
printer and release the cable assembly.  
2) Remove the 2 connectors (B, C) on the PWBA HNB DRV from the right side of the  
printer.  
Fan harness  
“A”  
Holder toner cartridge ASSY unit  
PWBA HNB DRV  
“B”  
“C”  
“A”  
LVPS  
Fig.4-66  
IV-40  
3) Remove the connector (D) on the PWBA EFPROM STD on the left side of the  
printer.  
4) Remove the connector (E) on the S-HVPS on the left side of the printer.  
5) From the printer, release the fan harness from the clamps.  
6) Remove the connector (F) from the connector block.  
7) Release the 2 hooks securing the gear slide to the shaft on the left side of the  
printer.  
8) Remove the gear slide from the printer.  
9) Remove the rack V from the printer.  
PWBA EFPROM  
“D”  
S-HVPS  
Rack V  
“E”  
Gear slide  
“F”  
Fig.4-67  
10) Remove 7 screws securing the holder toner cartridge ASSY unit to the printer.  
11) Remove the holder toner cartridge ASSY unit from the printer.  
Screw, M3x6  
Screw, M3x6  
Toner cartridge ASSY unit  
Screw, M3x10  
Screw, M3x6  
Fig.4-68  
IV-41  
Note:  
When replacing the gear slide, meet the leading edge of gear rail on the left side. with the  
vertex of a triangle mark on the rack V.  
Rack V  
Fig.4-69  
2.3.2  
Holder toner cartridge ASSY  
1) On the holder toner cartridge ASSY unit, release the hook securing the toner  
discharging unit of the holder toner cartridge ASSY (1) on the plate ASSY dispenser  
L with a mini screwdriver.  
2) From the plate ASSY dispenser, pull out the toner discharging unit rightwards.  
3) Disconnect the connector of the motor from the right hand side of the holder toner  
cartridge ASSY (1).  
4) Extract the toner empty and toner cartridge connectors from the holder toner  
cartridge ASSY (1).  
5) Release the harness from the hook at the bottom of the holder toner cartridge ASSY  
(1).  
6) Slide the holder toner cartridge ASSY (1) rightward from the holder toner cartridge  
ASSY unit and remove the holder toner cartridge ASSY (1) while releasing the 2  
hooks.  
<Black>  
Holder toner cartridge ASSY (4)  
Fig.4-70  
IV-42  
<Cyan>  
Holder toner cartridge  
ASSY (3)  
Fig.4-71  
<Magenta>  
Holder toner cartridge  
ASSY (2)  
Fig.4-72  
<Yellow>  
Plate ASSY dispenser  
Toner discharge unit  
Holder toner cartridge ASSY (1)  
Fig.4-73  
IV-43  
2.3.3  
Switch toner cartridge ASSY  
1)  
Release the 2 hooks securing the switch toner cartridge ASSY to the holder toner  
cartridge ASSY with a mini screwdriver.  
2)  
Remove the switch toner cartridge ASSY from the holder toner cartridge ASSY.  
Switch toner cartridge ASSY  
Left  
Holder toner cartridge ASSY  
Fig.4-74  
2.3.4  
Sensor toner low  
1) Remove 2 screws securing the sensor toner low to the holder toner cartridge ASSY.  
2) Remove the sensor toner low from the holder toner cartridge ASSY.  
Holder toner cartridge ASSY  
Screw, tapping M3x8  
Sensor toner low  
Fig.4-75  
IV-44  
2.3.5  
PWBA EEPROM STD  
1)  
2)  
Remove 1 screw securing the PWBA EEPROM.  
Remove the PWBA EEPROM from the printer.  
Screw, M3x6  
Left  
PWBA EEPROM  
Fig.4-76  
2.3.6  
S-HVPS  
1)  
2)  
Remove 4 screws securing the S-HVPS.  
Remove the S-HVPS from the printer.  
S-HVPS  
Screw,  
M3x6  
Screw, M3x6  
Left  
Screw, M3x6  
Fig.4-77  
IV-45  
2.3.7  
Scanner ASSY  
1) Remove the connector on the scanner ASSY.  
2) Release the hook of the spring scanner securing the right and left shafts of the  
scanner ASSY from the printer.  
3) Remove 1 screw securing the scanner ASSY to the printer.  
4) Remove the scanner ASSY from the printer.  
Spring scanner  
Screw, M4x18  
Spring scanner  
Scanner ASSY  
Fig.4-78  
IV-46  
2.4  
Right / Left / PCBs of the Printer  
HSG ASSY BIAS  
2.4.1  
1) Remove 5 screws securing the HSG ASSY BIAS to the left side surface of the  
printer.  
2) Remove the HSG ASSY BIAS from the printer.  
3) Remove 8 contact pads from the printer.  
HSG ASSY BIAS  
Screw, M3x10  
Screw, M3x10  
Fig.4-79  
2.4.2  
Lever drum: L  
1) Remove 4 screws securing the plate ASSY lever L from the left side of the printer.  
2) Remove the plate ASSY lever L from the printer.  
3) Release the hook of the spring lever 30N hitched over the convex portion of the 4  
lever drum: L from the right side of the printer.  
Spring lever 30N  
Screw, M3x10  
Plate ASSY lever L  
Screw, M3x10  
Spring lever 30N  
Fig.4-80  
IV-47  
4) Remove the link lever: L from the printer together with the spring lever: 30N and  
lever drum: L.  
5) Remove 4 springs from link lever: L and remove 4 lever drum: L.  
Note:  
When replacing the link lever, align the spring IDT L and the bottom of link lever: L with  
the positions shown in the figure (lever drum: L replacement).  
Gear IDL. press  
Gear press L  
Link lever: L  
Lever drum: L  
Fig.4-81  
Note:  
The lever drum: L and link lever: L must be fitted and aligned before refitting spring lever  
30N.  
Link lever: L  
Gear IDL. press  
Gear press L  
Fig.4-82  
IV-48  
2.4.3  
Drive ASSY main  
1) Remove the connector on the PWBA HNB DRV from the right side of the printer.  
2) Remove 4 screws securing the drive ASSY main to the printer.  
3) Remove the drive ASSY main from the printer.  
Screw, DT M4x10  
Screw, M3x6  
Screw, DT M4x10  
Drive ASSY main  
Fig.4-83  
IV-49  
2.4.4  
PWBA HNB DRV  
1) Remove the all connectors on the PWBA HNB DRV from the right side of the  
printer.  
2) Remove 4 screws securing the PWBA HNB DRV to the printer.  
3) Remove the PWBA HNB DRV from the printer.  
Screw, M3x6  
Screw, M3x6  
Screw, M3x6  
PWBA HNB DRV  
Fig.4-84  
IV-50  
2.4.5  
Drive ASSY DEVE  
1) Remove 5 screws securing the Drive ASSY DEVE from the right side of the printer.  
2) Remove the Drive ASSY DEVE from the printer.  
Drive ASSY DEVE  
Screw, DT M4x10  
Screw, DT M4x10  
Fig.4-85  
2.4.6  
Actuator I/R  
1) From the right side of the printer, release the hook of the spring I/R from the convex  
portion of the plate ASSY lever R.  
2) Release the hook securing the actuator I/R to the shaft on the plate ASSY lever R.  
3) Remove the actuator I/R from the plate ASSY lever R together with the spring I/R.  
4) Remove the spring I/R from the actuator I/R.  
Actuator I/R  
Fig.4-86  
IV-51  
2.4.7  
Lever drum: R  
1) Remove 4 screws securing the plate ASSY lever R from the right side of the printer.  
2) Remove the plate ASSY lever R from the printer.  
3) Release the hook of the spring lever 30N hitched over the convex portion of the 4  
lever drum: R from the right side of the printer.  
Spring lever 30N  
Screw, M3x10  
Plate ASSY lever R  
Screw, M3x10  
Spring lever 30N  
Fig.4-87  
4) Remove the link lever: R from the printer together with the spring lever 30N.  
5) Remove the lever drum: R from the printer.  
Gear IDL. press  
Gear press R  
Link lever: R  
Lever drum: R  
Fig.4-88  
IV-52  
Note:  
When replacing the link lever: R, align the spring IDT R and the bottom of link lever: L  
with the positions shown in the figure (lever drum: L replacement).  
Gear IDL. press  
Link lever: R  
Gear press R  
Fig.4-89  
IV-53  
2.4.8  
LVPS  
1) Remove 2 connectors from the LVPS (164/167).  
2) Remove the clamp guide harness at 2 positions secured on the guide harness SW  
of the LVPS STD.  
3) Shift the harness from the guide harness SW.  
4) Release the 2 hooks securing the guide harness SW to the switch bracket on the  
LVPS STD.  
5) Remove the guide harness ASSY from the LVPS STD.  
Clamp guide harness  
Guide harness SW  
Clamp guide harness  
Fig.4-90  
6) Remove 3 screws securing the LVPS STD to the printer.  
7) Remove the LVPS STD from the printer.  
LVPS  
Screw, M3x6  
Screw, M3x10  
Screw, M3x6  
Fig.4-91  
IV-54  
2.4.9  
Box ASSY MCU/ESS  
1) Remove the connector from the right side of the printer.  
2) Remove the connector on the scanner ASSY from the right side of the printer.  
3) Remove the connector from the left side of the printer.  
Box ASSY MCU/ESS  
Fig.4-92  
4) Remove 4 screws securing the box ASSY MCU/ESS to the printer.  
5) Pull out the box ASSY MCU/ESS rearward from the printer and remove.  
Screw, M3x6  
Screw, M3x6  
Box ASSY MCU/ESS  
Screw, M3x6  
Fig.4-93  
IV-55  
2.4.10 Housing ASSY contact  
1)  
2)  
Remove the housing ASSY contact from the box ASSY MCU/ESS.  
Pull out the housing ASSY contact from the box ASSY MCU/ESS and remove it.  
Housing ASSY contact  
Fig.4-94  
IV-56  
2.4.11 PKG service MCU HANABI  
1) Remove 4 screws securing the cover MCU to the box ASSY MCU/ESS.  
2) Remove the cover MCU from the box ASSY MCU/ESS.  
3) Remove the connectors on the PKG service MCU HANABI from the box ASSY  
MCU/ESS.  
Cover MCU  
Screw, M3x6  
Screw, M3x6  
Screw, M3x6  
Fig.4-95  
4) Remove 6 screws securing the PKG service MCU HANABI to the box ASSY  
MCU/ESS.  
5) Remove the PKG service MCU HANABI from the box ASSY MCU/ESS.  
Screw, M3x6  
Screw, M3x6  
PKG service MCU HANABI  
Fig.4-96  
IV-57  
2.5  
Paper Feed of the Printer  
Chute ASSY turn  
2.5.1  
1) Release the 2 hooks at the front securing the chute ASSY turn to the printer feeder.  
2) The chute ASSY will hang ertically.  
Chute ASSY turn  
Fig.4-97  
3) Release the hook securing the right and left shaft of the chute ASSY turn to the  
printer feeder.  
4) Pull out the chute ASSY turn from the printer feeder and remove.  
Chute ASSY turn  
Fig.4-98  
IV-58  
2.5.2  
Cover cassette  
1) Turning the cover cassette upward from the rear of the printer, pull out the cover  
cassette upwards to remove it.  
Cover cassette  
Fig.4-99  
IV-59  
2.5.3  
Feeder ASSY unit  
1) Push the shaft of the link actuator secured to the actuator no paper from the printer  
feeder and disconnect the actuator no paper from the shaft.  
2) Pull the link actuator from the hole in the printer feeder and remove.  
3) Remove the connector connecting the printer and feeder ASSY unit from the left  
side of the printer.  
4) Remove the 2 connectors connecting the printer and feeder ASSY unit from the  
right side of the printer.  
5) Remove 8 screws securing the feeder ASSY unit to the printer.  
6) Remove 4 long screws securing the feeder ASSY unit to the printer.  
CAUTION  
The top unit of the printer should be raised up by more than two people.  
Note:  
When removing the top unit of the printer from the feeder ASSY unit, be careful not to  
drop or damage the upper part of the printer.  
7) Raise the printer and separate it from the feeder ASSY unit, taking care not to  
damage the cables.  
Note:  
Take care not to trap the harness on the feeder ASSY unit, when replacing the printer top  
unit on the feeder ASSY unit.  
Screw, M3x85  
Washer-lock EXT TEETH  
Screw, M3x10  
Screw, M3x10  
Screw, M3x10  
Screw, M3x85  
Washer-lock EXT TEETH  
Screw, M3x85  
Washer-lock EXT TEETH  
Screw, M3x10  
Screw, M3x10  
Screw, M3x85  
Washer-lock EXT TEETH  
Screw, M3x10  
Feeder ASSY unit  
Fig.4-100  
IV-60  
2.5.4  
Pickup ASSY  
1) Remove the harness of the pickup ASSY from the right hook of the feeder ASSY  
unit.  
2) Disconnect the harness from the size switch.  
3) Remove 2 screws securing the pickup ASSY to the feeder ASSY unit.  
4) Lift the pickup ASSY from the feeder ASSY unit.  
Screw,  
M3x10  
Pickup ASSY  
Screw, M3x10  
Top view  
Feeder ASSY unit  
Fig.4-101  
IV-61  
2.5.5  
Roll ASSY feed  
1) Rotate the shaft feed 1 (180) so that the rubber of the roll ASSY feed L and R  
faces downward from the printer feeder.  
2) Release the hook securing the roll ASSY feed L and R to the shaft feed 1 and  
remove the roll ASSY feeds.  
Roll ASSY feed: L  
Fig.4-102  
Roll ASSY feed: R  
Fig.4-103  
IV-62  
2.5.6  
Actuator no paper  
1) Release the hook securing the actuator no paper to the pickup ASSY and extract the  
left side shaft of the actuator no paper.  
2) Pull out the actuator no paper left and upward from the pickup ASSY.  
Actuator no paper  
Rear  
Top  
Front  
Fig.4-104  
2.5.7  
Sensor photo: No paper  
1) Release the hooks at 3 positions securing the sensor photo: no paper to the pickup  
ASSY.  
2) Remove the connector on the sensor photo: no paper.  
3) Remove the sensor photo: no paper from the pickup ASSY.  
Rear  
Sensor photo: no paper  
Front  
Top  
Fig.4-105  
IV-63  
2.5.8  
Sensor photo: Low paper  
1) Release the hooks at 3 positions securing the sensor photo: low paper to the pickup  
ASSY.  
2) Remove the connector on the sensor photo: low paper.  
3) Remove the sensor photo: low paper from the pickup ASSY.  
Right view  
Sensor photo: low paper  
Fig.4-106  
2.5.9  
Solenoid feed  
1) Remove 1 screw securing the solenoid feed from the pickup ASSY.  
2) Separate the solenoid feed a little from the pickup ASSY and shift the harness of the  
solenoid feed.  
3) Remove the connector of the solenoid feed from the pickup ASSY.  
Rear  
Right  
Solenoid feed  
Fig.4-107  
IV-64  
2.5.10 Clutch ASSY turn  
1)  
Release the hook securing the stopper clutch to the shaft on the right side shaft of  
the pickup ASSY.  
2)  
3)  
4)  
Pull out the stopper clutch from the shaft of pickup ASSY.  
Remove the connector of the clutch ASSY turn from the pickup ASSY.  
Pull out the clutch ASSY turn from the shaft.  
Clutch ASSY turn  
Rear  
Stopper clutch  
Right  
Fig.4-108  
IV-65  
2.5.11 Roll ASSY turn  
1) Release the hook securing the gear feed 2 to the shaft of the pickup ASSY and pull  
out gear feed 2.  
2) Pull out the gear idler from the shaft of pickup ASSY.  
3) Pull out the gear idler in from the shaft of the pickup ASSY.  
4) Remove the right and left E rings securing the shaft of the roll ASSY turn to the  
pickup ASSY.  
5) Remove the bush/metal securing the right shaft of the roll ASSY turn from the  
pickup ASSY.  
6) Remove the bush/black securing the left shaft of the roll ASSY turn from the pickup  
ASSY.  
7) Slide the roll ASSY turn from the pickup ASSY.  
Gear feed 2  
Bush/black  
Roll ASSY turn  
Bush/metal  
Gear idler in  
Gear idler  
Fig.4-109  
2.5.12 Roll ASSY  
1) Release the hook securing the roll ASSY to the shaft feed 2.  
2) Pull out the roll ASSY leftwards from shaft feed 2.  
Roll ASSY  
Shaft feed 2  
Fig.4-110  
IV-66  
2.5.13 Housing ASSY feeder L  
1) Remove 4 screws securing the housing ASSY feeder L to the plate bottom.  
Housing ASSY feeder L  
Screw, M3x10  
Front  
Screw, M3x10  
Left  
Fig.4-111  
2) Pull down the housing ASSY feeder L inward and extract the 3 hooks out of the hole  
at the plate bottom.  
3) Remove the housing ASSY feeder L upward from the plate bottom.  
Housing ASSY feeder L  
Fig.4-112  
IV-67  
2.5.14 Sensor HUM temp  
1) Remove the screw securing the sensor HUM temp.  
2) Remove the harness ASSY TMPA.  
Harness ASSY TMPA  
Screw, M3x10  
Sensor HUM temp  
Left  
Fig.4-113  
IV-68  
2.5.15 Housing ASSY feeder R  
1) Remove 4 screws securing the support feeder left to the plate bottom.  
Housing ASSY feeder R  
Screw, M3x10  
Right  
Screw, M3x10  
Screw, M3x10  
Front  
Fig.4-114  
2) Pull down the housing ASSY feeder R inward and extract the 3 hooks out of the  
hole at the plate bottom.  
3) Remove the housing ASSY feeder R upward from the plate bottom.  
Housing ASSY feeder R  
Fig.4-115  
IV-69  
2.5.16 Harness ASSY OPFREC  
1) Release the harness ASSY OPFREC from the housing ASSY feeder R of the feeder  
ASSY unit.  
2) Release the 2 hooks securing the harness ASSY OPFREC to the housing ASSY  
feeder R.  
3) Pull out the harness ASSY OPFREC downward from the housing ASSY feeder R.  
Right  
Top view  
Rear  
Harness ASSY OPFREC  
Fig.4-116  
2.5.17 Switch ASSY size  
1) Remove 1 screw securing the switch ASSY size to the housing ASSY feeder R.  
2) Remove the switch ASSY size from the housing ASSY feeder R.  
Screw, M3x10  
Switch ASSY size  
Fig.4-117  
IV-70  
2.5.18 Indicator  
1) Hold the tip of the indicator with radio pliers and pull the indicator frontward and  
remove from the housing ASSY feeder R of the feeder ASSY unit.  
Note:  
Hold the guide indicator, when replacing the indicator.  
Guide indicator  
Indicator  
Fig.4-118  
IV-71  
2.5.19 Guide indicator  
1) Release the 2 hooks securing the holder shaft to the housing ASSY feeder R.  
Holder shaft  
Lever low paper  
Fig.4-119  
2) Pull out the guide indicator from the housing ASSY feeder R together with the spring  
indicator and shaft indicator.  
3) Pull out the guide indicator from the shaft indicator.  
Note:  
Put the leading end of lever low paper on a left convex portion of the guide indicator,  
when replacing the guide indicator.  
Guide indicator  
Shaft indicator  
Spring indicator  
Fig.4-120  
IV-72  
2.5.20 Lever low paper  
1) Turn the housing ASSY feeder R upside down.  
2) Push the support pillow to the left and release the lever low paper shaft.  
Left view  
Lever low paper  
Housing ASSY feeder R  
Fig.4-121  
3) Remove the lever low paper from the housing ASSY feeder R.  
Lever low paper  
Fig.4-122  
IV-73  
2.5.21 Roll ASSY  
1) Release the cover feed secured to the cassette at one point and open the cover  
feed.  
2) Release the hook securing the roll ASSY to the shaft retard from the cassette.  
3) Pull out the roll ASSY from the shaft retard.  
Roll ASSY  
Cover feed  
Fig.4-123  
2.5.22 Cassette ASSY front  
1) Release the bottom and top hook securing the cassette ASSY front from the right  
side of the cassette using a mini screwdriver or the like.  
2) Release the bottom and top hook securing the cassette ASSY front from the left side  
of the cassette using a mini screwdriver or the like.  
3) Pull out the cassette ASSY front from the cassette.  
Cassette ASSY front  
Fig.4-124  
IV-74  
2.5.23 Holder retard  
1) Remove the clutch ASSY friction on the shaft retard from the cassette.  
2) Release the hook of the spring retard hitched to the bottom groove of the holder  
retard from the cassette.  
3) Release the hook securing the top portion of the holder retard from the cassette and  
move the holder retard leftward.  
Clutch ASSY friction  
Holder retard  
Spring retard  
Fig.4-125  
4) Pull out the right end of the holder retard slightly from the cassette and extract the  
holder retard and remove.  
Holder retard  
Fig.4-126  
IV-75  
CHAPTER V  
TROUBLESHOOTING  
CONTENTS  
CHAPTER V TROUBLESHOOTING .............................................. V-1  
1. PREFACE....................................................................................................V-1  
1.1 Troubleshooting Procedure...............................................................................................V-1  
1.2 Note on Troubleshooting...................................................................................................V-1  
2. LEVEL 1 TROUBLESHOOTING..................................................................V-3  
2.1 Level 1 FIP ........................................................................................................................V-3  
3. LEVEL 2 TROUBLESHOOTING..................................................................V-4  
3.1 Fail Code List ....................................................................................................................V-4  
3.2 Fail FIP............................................................................................................................V-14  
4. HOW TO USE DIAG. (C/E) MODE............................................................V-39  
4.1 Roles of the Control Panel in Diag. (C/E) Mode..............................................................V-39  
4.2 Entering Diag. (C/E) Mode ..............................................................................................V-39  
4.3 Exiting Diag. (C/E) Mode.................................................................................................V-39  
4.4 Diag. (C/E) Mode Functions............................................................................................V-39  
4.5 Operation Procedure.......................................................................................................V-40  
4.6 Diag. Mode Menu Tree....................................................................................................V-41  
4.7 ESS Diagnosis ................................................................................................................V-43  
4.8 IOT Diagnosis..................................................................................................................V-44  
4.8.1 Digital input test ........................................................................................................V-45  
4.8.2 Digital output test......................................................................................................V-46  
4.8.3 NVM read/write.........................................................................................................V-49  
4.8.4 NVM information print...............................................................................................V-50  
4.8.5 NVM information save ..............................................................................................V-50  
4.8.6 NVM information load ...............................................................................................V-50  
4.9 Installation Setting...........................................................................................................V-51  
4.10 Test Print.......................................................................................................................V-52  
4.11 Parameter Setting .........................................................................................................V-53  
4.11.1 Parameter setting/display .......................................................................................V-53  
4.11.2 Parameter list print..................................................................................................V-54  
4.12 Information Print............................................................................................................V-55  
5. DIAGNOSIS FOR STANDALONE PRINTER ............................................V-56  
5.1 General............................................................................................................................V-56  
5.2 Printing Method ...............................................................................................................V-56  
5.3 Test Print Pattern ............................................................................................................V-57  
6. NVM LIST ..................................................................................................V-58  
7. HEX/DEC CONVERSION TABLE..............................................................V-67  
8. IMAGE QUALITY TROUBLE ENTRY CHART...........................................V-69  
9. IMAGE QUALITY SPECIFICATIONS ........................................................V-70  
9.1 Parallelism.......................................................................................................................V-70  
9.2 Diagonal ..........................................................................................................................V-70  
9.3 Skew................................................................................................................................V-70  
9.4 Straightness ....................................................................................................................V-71  
9.5 Magnification Error ..........................................................................................................V-71  
9.6 Registration .....................................................................................................................V-71  
9.7 Guaranteed Printing Area................................................................................................V-72  
10. TEST PRINT............................................................................................V-73  
10.1 Test print .......................................................................................................................V-73  
11. IMAGE QUALITY FIP ..............................................................................V-74  
11.1 Notes on Image Quality Trouble Check ........................................................................V-74  
11.2 Basic Rule of Image Quality Adjustment.......................................................................V-74  
11.3 Troubleshooting Table by Trouble Phenomena............................................................V-75  
CHAPTER V TROUBLESHOOTING  
1.  
PREFACE  
1.1  
Troubleshooting Procedure  
The troubleshooting procedure can roughly be divided into two:  
Level 1 troubleshooting  
The level 1 FIP isolates the presence of various troubles including fail codes.  
Level 2 Troubleshooting  
Level 2 troubleshooting is a procedure in which troubles are classified by FIP, BSD or fail  
codes list.  
1.2  
Notes on Troubleshooting  
When replacing parts, check in advance that the connectors are connected securely.  
When replacing parts, turn the power off.  
If there are several troubles, you may refer to the same FIP again. Note that the  
judgment may differ in the middle even when the FIP is identical.  
WARNING  
When the power is on, do not touch the parts listed below. You may receive an electrical  
shock.  
HVPS  
LVPS  
WARNING  
When the power is on, do not remove drum cartridge. An invisible laser beam may  
damage your eye.  
WARNING  
Heat roll and pressure roll, and their peripheries become very hot. Do not touch when  
they are still hot. You may get burnt.  
V-1  
<Terms of glossary>  
Fail code: Control panel displays this code in case of a trouble.  
Power off: Main power switch is off and power cord is disconnected from the outlet.  
WARNING  
If power off is specified in the work procedure, turn the Main power switch to off and  
unplug power cord from the outlet. Otherwise, your may receive an electric shock or get  
injured.  
Power on: Main power switch is on.  
Power on/off: Turn the main power switch off and on again immediately.  
Execute [DO-10]: Enter diagnostic code DO-10.  
Exit [DO-10]: Exit diagnostic code DO-10.  
+5VDC  
H level: +4.1 to +5.6VDC  
L level: -0.3 to +1.2VDC  
+24VDC  
H level: +21.8 to +25.8VDC  
L level: -0.4 to +3.3VDC  
V-2  
2.  
LEVEL 1 TROUBLESHOOTING  
2.1  
Level 1 FIP  
Ask the operator about trouble  
status.  
Is operator's operating method  
correct?  
Y
N
Instruct how to operate.  
Is trouble content displayed  
on control panel?  
Is trouble related to image  
quality?  
Y
N
Y
N
Refer to Section 3 Image  
Quality RAPS to perform  
the corresponding Image  
Quality FIP.  
Turn power off/on.  
Is trouble content displayed on  
control panel?  
Y
N
Print in the mode where the  
trouble occurred  
Is trouble content displayed  
on control panel?  
Refer to 1.3.1 Fail Code List  
to perform the corresponding  
action.  
Y
N
Execute the corresponding  
troubleshooting.  
Refer to Section 9 BSD to  
perform the corresponding  
troubleshooting.  
Fig.5-1  
V-3  
3.  
LEVEL 2 TROUBLESHOOTING  
3.1  
Fail Code List  
LCD Display  
< Name of Fail>  
Contents of Trouble  
Action  
Power off/on  
Reference  
BSD  
001-360 Turn OFF  
the Power.  
<IOT Fan Motor Failure>  
2.9.3  
2.9.6  
Fuser fan or rear fan fail signal detected.  
See fan motor failure FIP  
003-340 Turn OFF  
the Power.  
<IOT Firmware Error>  
IOT firmware error  
Power off/on  
See firmware error FIP  
2 3.1  
2 3.3  
003-356 Turn OFF  
the Power.  
<IOT NVRAM Error>  
NVRAM error  
Power off/on  
See NV-RAM error FIP  
2 3.1  
2 3.3  
006-370 Turn OFF  
the Power.  
<IOT SCANNER Failure>  
Power off/on  
See SCANNER failure FIP  
2.5.1  
2.5.2  
1. Laser power down.  
2. SOS signal not detected.  
009-340 Turn OFF  
the Power.  
<IOT CTD Sensor Error>  
ADC sensor ASSY power down.  
Power off/on  
See CTD sensor error FIP  
2.8.7  
2.8.8  
009-342 Turn OFF  
the Power.  
<IOT Low Density Error>  
Toner density is low.  
Power off/on  
See low density error FIP  
2.8.7  
2.8.8  
010-317 Turn OFF  
the Power.  
<IOT Fuser Detached>  
Detected that the fuser ASSY is not mounted.  
Power off/on  
See fuser detached FIP  
2.9.1  
2.9.6  
010-350 Turn OFF  
the Power.  
<IOT Fuser Failure>  
Power off/on  
See fuser failure FIP  
2.9.1  
2.9.6  
1. Temperature exceeding 235°C detected consecutively 4 times.  
2. Temperature below 120°C detected consecutively 4 times.  
3. Resistance value of STS sensor over 2437Kdetected  
consecutively 4 times.  
4. Target temperature is not reached more than 60 seconds after the  
fuser lamp lighted up.  
5. After the target temperature is reached, the fuser lamp was kept on  
for more than specified time.  
6. Value of the STS sensor does not change after the lamp lights up.  
7. Temperature exceeding 230°C detected during printing process  
consecutively twice.  
V-4  
LCD Display  
010-351 Turn OFF  
< Name of Fail>  
Contents of Trouble  
Action  
Power off/on  
Reference  
BSD  
<IOT Fuser Life Over>  
Fuser ASSY life expired.  
2.3.1  
2.3.3  
the Power.  
See fuser life over FIP  
010-354 Turn OFF  
the Power.  
<IOT Environment Sensor Error>  
Power off/on  
See environment sensor  
error FIP  
2.8.7  
2.8.8  
1. The temperature over +100°C or below -20°C was detected.  
2. The humidity over 100% was detected.  
016-300 Turn OFF  
the Power.  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
<ESS Data Cache Error>  
CPU data cache error  
2.3.1  
2.3.3  
016-301 Turn OFF  
the Power.  
<ESS Instruction Cache Error>  
CPU instruction cache error  
2.3.1  
2.3.3  
016-302 Turn OFF  
the Power.  
<ESS Illegal Exception>  
CPU illegal exception  
2.3.1  
2.3.3  
016-317 Turn OFF  
the Power.  
<ESS ROM Check (Main) Fail>  
Main program ROM checksum error  
2.3.1  
2.3.3  
016-310 Turn OFF  
the Power.  
<ESS Font ROM Error (Main)>  
Internal font ROM checksum error  
2.3.1  
2.3.3  
016-315Turn OFF  
the Power.  
<ESS On-Board RAM W/R Check Fail >  
Detected by RAM W/R check at initialize  
<ESS RAM DIMM W/R Check Fail >  
Detected by standard RAM W/R check at initialize.  
<ESS NVRAM1 W/R Check Fail >  
2.3.1  
2.3.3  
016-316 Turn OFF  
the Power.  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
2.3.1  
2.3.3  
016-323 Turn OFF  
the Power.  
2.3.1  
2.3.3  
Detected by Master NVRAM W/R check.  
<ESS NVRAM2 W/R Check Fail >  
016-324 Turn OFF  
the Power.  
2.3.1  
2.3.3  
Detected by backup NVRAM W/R check.  
<ESS NVRAM3 W/R Check Fail >  
016-325 Turn OFF  
the Power.  
2.3.1  
2.3.3  
Detected by NVRAM W/R check for print log.  
<ESS NVRAM4 W/R Check Fail >  
016-326 Turn OFF  
the Power.  
2.3.1  
2.3.3  
Detected by NVRAM W/R check for print log  
V-5  
LCD Display  
016-327 Turn OFF  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
Replace with the correct  
device.  
<ESS NVRAM1 ID Check Fail >  
This error occurs if the backup device is inserted in master socket.  
2.3.1  
2.3.3  
the Power.  
016-328 Turn OFF  
the Power.  
Replace with the correct  
device.  
<ESS NVRAM2 ID Check Fail >  
This error occurs if the master device is inserted in backup socket.  
2.3.1  
2.3.3  
016-330 Turn OFF  
the Power.  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
<NIC-ESS Communication Fail>  
Communication fail between NIC and ESS  
<NIC Flash ROM Boot Module Checksum Error>  
2.3.1  
2.3.3  
016-331 Turn OFF  
the Power.  
2.3.1  
2.3.3  
016-332 Turn OFF  
the Power.  
<NIC RAM R/W Test Error>  
2.3.1  
2.3.3  
016-333 Turn OFF  
the Power.  
<NIC Flash ROM Application Module Checksum Error>  
<NIC MAC Address Checksum Error>  
2.3.1  
2.3.3  
016-334 Turn OFF  
the Power.  
2.3.1  
2.3.3  
016-335Turn OFF  
the Power.  
<NIC Ethernet BIST parity/RAM R/W Error>  
<NIC Internal Loopback Error>  
2.3.1  
2.3.3  
016-336 Turn OFF  
the Power.  
2.3.1  
2.3.3  
016-340 Turn OFF  
the Power.  
<On Board Network Communication Fail >  
2.3.1  
2.3.3  
Communication fail between CPU network and ESS F/W  
<On Board Network MAC Address Checksum Error>  
016-344 Turn OFF  
the Power.  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
2.3.1  
2.3.3  
016-345 Turn OFF  
the Power.  
<On Board Network Ethernet BIST parity/RAM R/W Error>  
<On Board Network Internal Loopback Error>  
2.3.1  
2.3.3  
016-346 Turn OFF  
the Power.  
2.3.1  
2.3.3  
016-312 Turn OFF  
the Power.  
<ESS HD Fail >  
2.3.1  
2.3.3  
Detected by a HDD error.  
V-6  
LCD Display  
016-313 Turn OFF  
< Name of Fail>  
Contents of Trouble  
Action  
Power off/on  
Reference  
BSD  
<ASIC Fail >  
TBD  
2.3.1  
2.3.3  
the Power.  
016-360 Turn OFF  
the Power.  
<PCI Option#0 Fail>  
PCI option 0 detection error  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
Power off/on  
2.3.1  
2.3.3  
016-361 Turn OFF  
the Power.  
<PCI Option#1 Fail>  
PCI option 1 detection error  
2.3.1  
2.3.3  
016-314 Turn OFF  
the Power.  
<Video Sync Fail>  
Detected by an incorrect synchronous signal input.  
2.3.1  
2.3.3  
016-350 Turn OFF  
the Power.  
<IEEE1284 Data Error>  
Detected by IEEE1284 controller.  
2.3.1  
2.3.3  
016-370 Turn OFF  
the Power.  
<IOT-ESS Communication Fail >  
Communication fail between IOT and ESS  
2.3.1  
2.3.3  
Initialising  
Press set  
Perform usual startup by  
Key On to initialize NVM.  
<NVM Fail >  
2.3.1  
2.3.3  
Checking that values wrote at NVM Initializing have been retained in  
the specified area on NVM.  
Duplex Jam  
Open B-Cover  
<IOT Duplex JAM>  
Remove the jammed paper. 2.9.4  
See duplex JAM FIP 2.9.6  
Duplex jam sensor cannot detect passage of paper within specified  
time.  
Fuser Jam  
Open A/B-Cover  
<IOT Fuser JAM>  
Remove the jammed paper. 2.9.1  
See fuser JAM FIP 2.9.6  
Exit sensor cannot detect passage of paper within specified time.  
<IOT Regi JAM>  
Regi. Jam  
Open A-Cover  
Remove the jammed paper. 2.7.6  
See Regi JAM FIP 2.7.7  
Regi sensor cannot detect passage of paper within specified time.  
<IOT Feed JAM>  
Feed Jam  
Check Tray  
Remove the jammed paper. 2.7.6  
See feed JAM FIP 2.7.7  
Regi sensor cannot detect passage of paper within specified time.  
<IOT Media Type Mismatch>  
Transp. Error  
Open A-Cover  
Remove the jammed paper. 2.8.3  
2.8.8  
1. Plain paper detected for a job that is specified transparency,  
2. Transparency detected for a job that is specified plain paper.  
Change paper stock.  
See media type mismatch  
FIP  
V-7  
LCD Display  
Reinsert Xxxxx  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
<IOT X Toner Detached>  
Insert toner cartridge.  
See toner cartridge  
detached FIP.  
2.8.7  
2.8.8  
Toner (X)  
Toner cartridge switch ASSY detected that the toner cartridge is not  
mounted.  
Xxxxx indicates Yellow  
toner (Y), Cyan toner (C),  
Magenta toner (M) or Black  
toner (K).  
Reinsert  
Transfer Roll  
<IOT transfer roll cartridge Detached>  
Detected that the transfer roll cartridge unit ASSY is not mounted.  
Insert transfer roll cartridge  
2.8.7  
2.8.8  
unit ASSY.  
See transfer roll cartridge  
detached FIP  
Set Print Head  
Cartridge  
<IOT print head cartridge E Detached>  
Detected that the print head cartridge ASSY is not mounted.  
Insert print head cartridge  
2.3.2  
2.3.3  
ASSY.  
See print head cartridge  
detached FIP  
Replace Xxxxx  
Toner (X)  
<IOT X Toner Empty>  
Toner empty detected.  
Replace toner cartridge.  
See Yellow toner empty  
FIP, Magenta toner empty  
FIP, Cyan toner empty FIP  
or Black toner empty FIP  
2.8.5  
2.8.8  
Xxxxx indicates Yellow  
toner (Y), Cyan toner (C),  
Magenta toner (M) or Black  
toner (K).  
V-8  
LCD Display  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
Replace  
Transfer Roll  
<IOT transfer roll cartridge Life Over>  
Transfer roll cartridge ASSY life expired.  
Replace transfer roll  
2.8.7  
2.8.8  
cartridge ASSY.  
See transfer roll cartridge  
life over FIP  
Replace Print  
Head Cartridge  
<IOT print head cartridge Life Over>  
Print head cartridge ASSY life expired.  
Replace print head  
2.3.2  
2.3.3  
cartridge ASSY.  
See print head cartridge life  
over FIP  
Print Head Cart  
ID Error  
<IOT CRUM ID Error>  
ID is different from one that is recorded in print head cartridge ASSY  
ID.  
Replace print head  
2.3.2  
2.3.3  
cartridge ASSY.  
See CRUM ID error FIP  
Clean Up  
CTD Sensor  
<IOT CTD Sensor Dustiness>  
ADC sensor ASSY signal level below the specified value.  
Clean ADC sensor ASSY.  
See CTD sensor dustiness  
FIP  
2.8.7  
2.8.8  
Close  
Front Cover  
<IOT Front Cover Open>  
Font cover is open.  
Close the front cover.  
See front cover FIP  
2.1.1  
2.1.2  
Empty  
Exit Tray  
<IOT Standard Stacker Full>  
Exit tray is full.  
Remove output paper stack. 2.9.4  
See full stack FIP  
2.9.6  
(During job waiting or auto paper <Tray Detached>  
Push in the tray.  
2.6.1  
N indicates the tray no.  
feeding)  
All existing trays are open during job waiting or auto paper  
2.6.2  
2.6.3  
2.6.4  
Push in a Tray  
feeding. (All Tray Detached)  
The specified tray is open when a tray is specified. (Specified  
Tray Detached)  
(When a tray is specified)  
Push in Tray N  
V-9  
LCD Display  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
(When paper is being fed from a <IOT Paper Size Mismatch>  
Open/close the tray.  
2.6.1  
Paper Size Mismatch detected.  
tray)  
Or, reload the manual feed  
2.6.2  
2.6.3  
2.6.4  
Check Paper in Tray N  
(When paper is being fed from  
paper.  
N indicates the tray no.  
manual tray)  
Check Paper in MP Tray  
(When auto select is specified)  
Load XX in a Tray  
<No Suitable Paper>  
Load the specified paper in  
the tray.  
2.6.1  
All existing trays are open during job waiting or auto paper  
feeding. (All tray empty)  
2.6.2  
2.6.3  
2.6.4  
2.7.2  
2.7.7  
(When a tray is specified)  
Load XX in Tray X  
All existing trays are different in size when auto paper feeding is  
selected. (All tray size mismatch)  
N indicates the tray no.  
XX indicates paper size.  
(When manual feed is specified)  
Load XX in Manual Tray  
(During job waiting)  
The specified tray is empty when a paper tray is specified  
(Specified tray empty)  
One step tray configuration:  
No Paper in Tray N  
Paper loaded in the specified tray is different from the size  
specified in the job when a paper tray is specified.  
(Specified tray size mismatch)  
N steps tray configuration:  
No Paper in All Trays  
(When auto select is specified)  
Push in the Tray  
Upper Cassette Detached>  
Set the tray  
2.6.1  
Any one of trays upper than the feedable tray is open when auto  
See upper cassette  
2.6.2  
2.6.3  
2.6.4  
(When a tray is specified)  
Push in All Trays  
tray select is specified.  
detached FIP  
N indicates the tray No.  
immediately above the  
specified tray.  
Any one of trays upper than the specified tray is open when a  
tray is specified.  
Out of Memory  
Please Press Set  
<Memory Overflow>  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
V-10  
LCD Display  
Overrun Error  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
<Overrun>  
Press the set key.  
Please Press Set  
The processing will  
continue. (Job is printed  
from the next page)  
Disk Full  
Please Press Set  
<Harddisk Full>  
<PDL Error>  
<PDF Error>  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
PCL6 Error %u  
Please Press Set  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
PDF Error %u  
Please Press Set  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
PDF Extract Error  
Please Press Set  
<PDF Compression Error >  
<PDL Password Error>  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
PDF Wrong Passwd  
Please Press Set  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
Operation Error  
Please Press Set  
<Job Environment Violation>  
A violation in the print condition founded.  
Press the set key.  
The processing will  
continue. (Job is cleared.)  
V-11  
LCD Display  
Ready to Print  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
<IOT X Toner Near Empty>  
No action required.  
Need Replacement  
The X toner is low  
See Yellow toner empty FIP  
See Magenta toner empty  
FIP  
See Cyan toner empty FIP  
See Black toner empty FIP  
CRU Warning:  
Xxxxx indicates Yellow  
toner (Y), Cyan toner (C),  
Magenta toner (M) or Black  
toner (K).  
Ready to Print  
Need Replacement Transfer  
Roll  
<Transfer roll cartridge Life Warning>  
Transfer roll cartridge unit ASSY is near the end of its life.  
No action required.  
See transfer roll cartridge  
life over FIP  
CRU Warining:  
Ready to Print  
Need Replacement  
Print Head Cart  
<Print head cartridge Life Warning>  
No action required.  
See print head cartridge life  
over FIP  
Print head cartridge ASSY is near the end of its life.  
CRU Warning:  
Ready to Print  
Need Maintenance CTD Sensor  
<ERU Warning>  
No action required.  
See CTD sensor dustiness  
FIP  
ADC sensor ASSY signal level below the specified value.  
V-12  
LCD Display  
No display  
< Name of Fail>  
Contents of Trouble  
Action  
Reference  
BSD  
<IOT X Cassette Near Empty>  
No action required.  
Tray1 paper near empty  
FIP, Tray2 paper near  
empty FIP  
Paper level is low in the X cassette.  
See Tray3 paper near  
empty FIP  
Ready to Print  
ServiceCallJJXXXXXXX  
<ERU Warning>  
No action required.  
See fuser life over FIP  
Fuser ASSY is near the end of its life.  
ERU Warning: XXXXXXX  
indicates ERU No.  
1:Fuser unit  
V-13  
3.2  
Fail FIP  
Base Engine  
001-360 Fan Motor Failure FIP(PL)  
Remedy  
Step  
1
Check  
Yes  
No  
Initial setting  
Replace the  
Check the following for evidence of fault.  
Go to step [2]  
Go to step [15]  
Go to step [4]  
parts concerned  
Fuser fan replacing condition  
Rear fan replacing condition  
Isolating faulty fan  
2
3
Go to step [3]  
Does the fan rear rotate when printing 1  
sheet?  
Checking fan rear  
Does fan rear function normally?  
Using rear fan diagnostic tool, check by  
digital output test.  
Replace MCU  
and HVPS PWB  
Checking LVPS for signal  
Print 1 sheet.  
Replace MCU  
PWB  
Replace  
harness  
4
5
6
7
8
9
Is P/J166-1PIN<=>P/J166-3PIN 24VDC?  
Checking LVPS for signal  
Print 1 sheet.  
Go to step [6]  
Go to step [7]  
Go to step [8]  
Replace LVPS  
Is P/J165-6PIN<=>P/J165-2PIN 0VDC?  
Checking drive PWB for signal  
Print 1 sheet.  
Replace  
harness ASSY  
LVNC  
Is P/J61-3PIN<=>P/J61-7PIN 0VDC?  
Checking DRIVE PWB for signal  
Print 1 sheet.  
Replace drive  
PWB  
Is P/J42-12PIN<=>P/J42-14PIN 0VDC?  
Checking MCU and HVPS PWB for signal  
Print 1 sheet.  
Replace  
harness ASSY  
DRV2  
Replace MCU  
and HVPS PWB  
Is P/J12-19PIN<=>P/J12-17PIN 0VDC?  
Checking rear fan  
Go to step [10]  
End of work  
Check if an error occurs though the rear  
fan was replaced with a new one.  
Checking LVPS for signal  
Print 1 sheet.  
10  
Replace rear fan  
Go to step [11]  
Is P/J166-2PIN<=>P/J166-3PIN  
+3.3VDC?  
Checking LVPS for signal  
Print 1 sheet.  
11  
12  
Replace LVPS  
Go to step [12]  
Go to step [13]  
Is P/J165-7PIN<=>P/J165-2PIN  
+3.3VDC?  
Checking drive PWB for signal  
Print 1 sheet.  
Replace harness  
ASSY LVNC  
Is P/J61-2PIN<=>P/J61-7PIN +3.3VDC?  
V-14  
Remedy  
Step  
13  
Check  
Yes  
No  
Checking drive PWB for signal  
Replace drive  
PWB  
Print 1 sheet.  
Go to step [14]  
Is P/J42-29PIN<=>P/J42-14PIN  
+3.3VDC?  
Checking MCU and HVPS PWB for signal  
Print 1 sheet.  
Replace MCU  
and HVPS  
PWB  
Replace harness  
ASSY DRV2  
14  
15  
Is P/J12-2PIN<=>P/J12-17PIN +3.3VDC?  
Checking fuser fan  
Does fuser fan function normally?  
Using fuser fan diagnostic tool, check by  
digital output test.  
Replace MCU  
and HVPS PWB  
Go to step [16]  
Go to step [17]  
Checking drive PWB for signal  
Print 1 sheet.  
16  
17  
18  
19  
20  
21  
Go to step [19]  
Go to step [18]  
Is P/J50-7PIN<=>P/J50-9PIN +24VDC?  
Checking drive PWB for signal  
Print 1 sheet.  
Replace drive  
PWB  
Is P/J42-30PIN<=>P/J42-14PIN 0VDC?  
Checking MCU and HVPS PWB for signal  
Print 1 sheet.  
Replace  
harness ASSY  
DRV2  
Replace MCU and  
HVPS PWB  
Is P/J12-1PIN<=>P/J12-17PIN 0VDC?  
Checking harness ASSY DUP for  
continuity  
Replace  
harness ASSY  
DUP  
Go to step [20]  
Is J50<=>J137 continuous normally?  
Checking fuser fan  
Replace Go to  
step [21]  
End of work  
Check if an error occurs though the fuser  
fan was replaced with a new one.  
Checking drive PWB for signal  
Print 1 sheet.  
Fuser fan  
Go to step [22]  
Is P/J50-8PIN<=>P/J50-9PIN +3.3VDC?  
Checking drive PWB for signal  
Print 1 sheet.  
Replace drive  
PWB  
22  
23  
Go to step [23]  
Is P/J42-27PIN<=>P/J42-14PIN  
+3.3VDC?  
Checking MCU and HVPS PWB for signal  
Print 1 sheet.  
Replace MCU  
and HVPS  
PWB  
Replace harness  
ASSY DRV2  
Is P/J12-4PIN<=>P/J12-17PIN +3.3VDC?  
V-15  
003-340 Firmware Error FIP  
Remedy  
Step  
Check  
Yes  
No  
If the error  
Replace MCU and recurs, replace  
Does an error occur even if the power is  
turned off and on?  
1
HVPS PWB  
MCU and  
HVPS PWB  
003-356 NV-RAM Error FIP  
Remedy  
Step  
Check  
Yes  
No  
Does an error occur even if the power is  
turned off and on?  
If the error  
Replace MCU and recurs, replace  
1
HVPS PWB  
MCU and  
HVPS PWB  
006-370 Scanner Failure FIP  
Remedy  
Step  
Check  
Yes  
No  
Checking harness ASSY scanner KA for  
Replace  
harness ASSY  
scanner KA  
Replace scanner  
ASSY  
1
continuity  
Is J15<=>P151 continuous normally?  
009-340 CTD Sensor Error FIP  
Remedy  
Step  
1
Check  
Yes  
No  
Initial setting  
Replace the parts  
concerned  
Check the following for evidence of fault.  
ADC sensor ASSY replacing condition  
Checking harness ASSY CTD for  
continuity  
Is J136<=>J1361 continuous normally?  
Checking harness ASSY front 1A for  
continuity  
Go to step [2]  
Replace  
2
3
Go to step [3]  
Go to step [4]  
harness ASSY  
CTD  
Replace  
harness ASSY  
front 1A  
Is J13<=>P1361 continuous normally?  
Checking ADC sensor ASSY  
Check if an error occurs though the ADC  
sensor ASSY was replaced with a new  
one.  
Replace MCU and  
HVPS PWB  
4
End of work  
V-16  
009-342 LOW Density Error FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Transfer roll cartridge ASSY replacing  
condition  
ADC sensor ASSY replacing condition  
Print head cartridge ASSY replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
Residual toner  
Checking harness ASSY CTD for  
connection  
Is the harness ASSY CTD connected to  
the ADC sensor ASSY normally?  
Checking harness ASSY CTD for  
continuity  
Replace the  
parts  
concerned  
2
Go to step [3]  
Replace  
3
4
Go to step [4]  
Go to step [5]  
harness ASSY  
CTD  
Is J136<=>J1361 continuous normally?  
Checking harness ASSY front 1A for  
Continuity  
Is P1361<=>J13 continuous normally?  
Replace  
harness ASSY  
front 1A  
Checking transfer roll cartridge ASSY  
Check if an error occurs though the  
transfer roll cartridge ASSY was replaced  
with a new one.  
Checking print head cartridge ASSY  
Check if an error occurs though the print  
head cartridge ASSY was replaced with a  
new one.  
Checking ADC sensor ASSY  
Check if an error occurs though the ADC  
sensor ASSY was replaced with a new  
one.  
5
6
7
Go to step [6]  
Go to step [7]  
End of work  
End of work  
End of work  
Replace MCU and  
HVPS PWB  
010-317 Fuser Detached FIP  
Remedy  
Step  
1
Check  
Yes  
No  
Initial setting  
Replace the parts  
concerned  
Check the following for evidence of fault.  
Fuser ASSY replacing condition  
Checking fuser ASSY  
Go to step [2]  
Remove the fuser and measure resistance  
value  
Is P232-A4PIN<=>P232-A5PIN less than  
Replace fuser  
ASSY  
2
Go to step [3]  
Go to step [4]  
400K?  
Checking harness ASSY FSR2 for  
continuity  
Replace  
3
4
harness ASSY  
FSR2  
Replace  
harness ASSY  
front 1A  
Is J232<=>J138 continuous normally?  
Checking harness ASSY front 1A for  
continuity  
Is P138<=>J13 continuous normally?  
Replace MCU and  
HVPS PWB  
V-17  
010-350 Fuser Failure FIP  
Remedy  
Step  
1
Check  
Yes  
No  
Initial setting  
Replace the parts  
concerned  
Check the following for evidence of fault.  
Fuser ASSY replacing condition  
Checking fuser ASSY connector  
Disconnect the fuser ASSY connector,  
and check for broken or curved pins.  
Checking fuser ASSY  
Go to step [2]  
Replace  
2
3
Go to step [3]  
the parts  
concerned  
Replace MCU and  
HVPS PWB  
Check if an error occurs though the  
fuser ASSY was replaced with a new one.  
End of work  
010-351 Fuser Life Over FIP  
Remedy  
Step  
1
Check  
Yes  
No  
Checking NVM  
Replace MCU and  
HVPS PWB  
Does the error occur even if the fuser  
counter is cleared?  
End of work  
010-354 Environment Sensor Error FIP  
Remedy  
Step  
1
Check  
Yes  
No  
Initial setting  
Replace the parts  
concerned  
Check the following for evidence of fault.  
HUM TEMP sensor replacing condition  
Checking harness ASSY TMPA for signal  
Is P/J2361-1PIN<=>P/J2361-2PIN +3VDC  
or less than +0.1VDC?  
Checking harness ASSY TMPA for signal  
Is P/J2361-3PIN<=>P/J2361-2PIN more  
than +2.5VDC?  
Go to step [2]  
2
3
4
Go to step [4]  
Go to step [4]  
Go to step [3]  
Replace MCU  
and HVPS  
PWB  
Checking harness ASSY TMPA for signal  
Is P/J2361-4PIN<=>P/J2361-2PIN  
+5VDC?  
Replace MCU  
and HVPS  
PWB  
Replace sensor  
HUM TEMP  
V-18  
Duplex JAM FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Chute ASSY exit replacing condition  
DUP motor replacing condition  
DUP JAM sensor actuator replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
Chute ASSY out replacing condition  
Checking DUP JAM sensor  
Does DUP JAM sensor function normally?  
Using DUP JAM sensor diagnostic tool,  
check by digital input test.  
Checking harness ASSY front 2 for signal  
Push the DUP JAM sensor actuator by  
finger  
Is J319-3PIN<=>J319-2PIN 0VDC?  
Checking harness ASSY front 2 for  
continuity  
2
3
Go to step [7]  
Go to step [5]  
Go to step [3]  
Go to step [4]  
Replace  
4
5
Go to step [5]  
Go to step [6]  
harness ASSY  
front 2  
Is J133<=>J139 continuous normally?  
Checking harness ASSY front 1A for  
continuity  
Is P139<=>J13 continuous normally?  
Replace  
harness ASSY  
front 1A  
Checking DUP JAM sensor  
Check if an error occurs though the  
sensor was replaced with a new one.  
Checking DUP motor for operation  
Check if the sheet is reversed when  
printing 1 sheet in the duplex mode.  
Checking DUP motor  
6
7
Go to step [7]  
Go to step [13]  
End of work  
Go to step [8]  
Does DUP motor function normally?  
Using DUP motor diagnostic tool, check  
by  
8
Go to step [13]  
Go to step [9]  
digital output test.  
In the test, close the interlock SW.  
Checking drive PWB for signal  
Is P/J50-1PIN<=>P/J60-2PIN +24VDC?  
Checking harness ASSY DUP for  
continuity  
Is J131<=>J50 continuous normally?  
Checking harness ASSY DRV 2 for  
continuity  
Replace drive  
PWB  
Replace  
harness ASSY  
DUP  
9
Go to step [10]  
Go to step [11]  
10  
Check the following for continuity.  
J12-5PIN<=>J42-26PIN  
J12-6PIN<=>J42-25PIN  
Replace  
harness ASSY  
DRV2  
11  
Go to step [12]  
J12-7PIN<=>J42-24PIN  
J12-8PIN<=>J42-23PIN  
J12-29PIN<=>J42-2PIN  
Checking DUP motor  
Replace MCU and  
HVPS PWB  
12  
13  
Check if an error occurs though the  
motor was replaced with a new one.  
Dose the exit roll rotate smoothly by hand?  
End of work  
Check the  
gears for  
foreign  
Check the sheets  
for gear or skew  
substances  
V-19  
Fuser JAM FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Sensor exit actuator replacing condition  
Fuser ASSY replacing condition  
Front cover replacing condition  
Chute DUP in replacing condition  
Transfer roll cartridge ASSY replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
Print head cartridge ASSY replacing  
condition  
Checking fuser ASSY connector  
Remove the fuser ASSY connector, and  
check for broken or curved pins.  
Checking sensor exit  
Does sensor exit function normally?  
Using sensor exit diagnostic tool, check by  
digital input test.  
Checking harness FSR2 for signal  
Push the paper in the fuser ASSY  
Is P/J138-3PIN<=>P/J138-2PIN 0VDC?  
Checking harness FSR2 for continuity  
Is J232<=>J138 continuous normally?  
Replace the  
parts  
concerned  
2
3
Go to step [3]  
Go to step [9]  
Go to step [4]  
Go to step [5]  
4
5
6
7
8
Go to step [6]  
Go to step [6]  
Go to step [7]  
Go to step [9]  
Replace  
harness ASSY  
FSR2  
Replace  
harness ASSY  
Front 1A  
Checking harness ASSY front 1A for  
continuity  
Is P138<=>J13 continuous normally?  
Checking fuser ASSY  
Check if an error occurs though the  
fuser ASSY was replaced with a new one.  
Checking fuser motor for operation  
Does the fuser motor run when printing 1  
sheet?  
End of work  
Check the gears  
for meshing  
Go to step [9]  
Checking fuser motor  
Does fuser motor function normally?  
Using fuser motor diagnostic tool, check  
by digital output test.  
Replace MCU and  
HVPS PWB  
9
Go to step [10]  
Checking drive PWB for signal  
Is P/J52-1PIN<=>P/J60-2PIN +24VDC?  
Checking harness ASSY DRV 1 for  
continuity  
Replace drive  
PWB  
10  
Go to step [11]  
Check the following for continuity.  
J11-12PIN<=>J41-29PIN  
J11-13PIN<=>J41-28PIN  
J11-14PIN<=>J41-27PIN  
J11-15PIN<=>J41-26PIN  
J11-16PIN<=>J41-25PIN  
Checking fuser motor  
Replace a new fuser motor, and check if  
the fuser motor rotates when printing 1  
sheet.  
Replace  
harness ASSY  
DRV 1  
11  
12  
Go to step [12]  
Replace MCU  
and HVPS  
PWB  
End of work  
V-20  
REGI JAM FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
REGI sensor actuator replacing condition  
chute ASSY REGI replacing condition  
Checking REGI sensor  
Does REGI sensor function normally?  
Using REGI sensor diagnostic tool, check  
by Digital Input Test.  
Checking REGI clutch harness for  
connection  
Is it connected normally to the REGI  
sensor?  
Replace the parts  
concerned  
1
2
3
Go to step [2]  
Go to step [6]  
Go to step [4]  
Go to step [3]  
Replace the  
parts  
concerned  
Checking REGI clutch harness for  
continuity  
Is J181<=>J18 continuous normally?  
Checking MCU and HVPS PWB for signal  
Is P/J18-3<=>P/J18-2 0VDC?  
Checking clutch REGI  
Replace chute  
REGI  
4
5
Go to step [5]  
Go to step [6]  
Replace REGI  
sensor  
Does clutch REGI function normally?  
Using clutch REGI diagnostic tool, check  
by digital output test.  
6
Go to step [9]  
Go to step [7]  
In the test, close the interlock SW.  
Checking clutch REGI for resistance value  
Remove the clutch connector J18.  
Is J18-4PIN<=>J18-5PIN less than 200?  
Checking MCU and HVPS PWB for signal  
Close the interlock SW  
Replace chute  
REGI  
7
8
Go to step [8]  
Go to step [9]  
Replace MCU  
and HVPS  
PWB  
Is P18-4PIN<=>P18-2PIN +24VDC?  
Checking chute REGI  
Does the roll rotate smoothly by hand?  
Replace the chute  
REGI on the  
Replace chute  
REGI  
9
machine, and  
check the gears  
for meshing.  
Feed JAM FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Paper cassette replacing condition  
Paper condition in cassette  
Wear or damage of rolls and gears in  
feeder  
Paper dust or foreign substances in paper  
path  
REGI sensor replacing condition  
Main drive ASSY replacing condition  
Checking REGI sensor  
Replace the parts  
concerned  
1
2
Go to step [2]  
Does REGI sensor function normally?  
Using diagnostic tool, check by digital  
input test.  
Go to step [6]  
Go to step [3]  
V-21  
Remedy  
Step  
3
Check  
Yes  
No  
Checking REGI clutch harness for  
connection  
Is it connected normally to the REGI  
SENSOR?  
Replace the  
parts  
Go to step [4]  
concerned  
Checking REGI clutch harness for  
continuity  
Is J181<=>J18 continuous normally?  
Replace chute  
REGI  
4
5
Go to step [5]  
Checking MCU and HVPS PWB for signal Replace REGI  
Go to step [6]  
Go to step [7]  
Is P/J18-3<=>P/J18-2 0VDC?  
Checking main drive motor for operation  
Does the main drive motor run when  
printing 1 sheet?  
sensor  
Tray go to step  
[16]  
MSI go to step  
[28]  
6
7
Checking main drive motor  
Does main drive motor function normally?  
Using diagnostic tool, check by digital  
output test.  
In the test, close the interlock SW.  
Checking drive PWB for signal  
Is P/J48-1PIN<=>P/J60-2PIN +24VDC?  
Checking interlock SW  
Replace MCU and  
HVPS PWB  
Go to step [8]  
Go to step [9]  
8
9
Go to step [12]  
Go to step [10]  
Replace the  
parts  
Is the interlock SW pressed normally?  
concerned  
Checking interlock SW for signal  
Check the following if +24VDC is present.  
SW-1PIN<=>P/J60-2PIN  
Replace deive  
PWB  
10  
Go to step [11]  
SW-2PIN<=>P/J60-2PIN  
Checking drive PWB for power supply  
Is P/J60-1PIN<=>P/J60-2PIN +24VDC?  
Checking drive PWB for power supply  
Is P/J61-8PIN<=>P/J61-7PIN +5VDC?  
Checking drive PWB for power supply  
Is P/J61-6PIN<=>P/J61-5PIN +3.3VDC?  
Checking harness ASSY LVNC for  
continuity  
Is J61<=>J165 continuous normally?  
Checking harness ASSY DRV1 for  
continuity  
Check the following for continuity.  
J41-30PIN<=>J11-11PIN  
Replace deive  
PWB  
11  
12  
13  
Go to FIP-DC  
Go to step [14]  
Go to step [14]  
Go to step [13]  
Go to step [15]  
Replace  
harness ASSY  
LVNC  
14  
Go to FIP-DC  
Replace  
harness ASSY  
DRV1  
Replace MCU  
and HVPS PWB  
15  
J41-31PIN<=>J11-10PIN  
J41-33PIN<=>J11-8PIN  
Checking tray1 turn clutch ASSY for  
operation  
Does the turn roll in the feeder run when  
printing 1 sheet?  
16  
Go to step [22]  
Go to step [17]  
Checking tray1 turn clutch ASSY  
Does tray1 turn clutch ASSY function  
normally?  
Using tray1 turn clutch ASSY diagnostic  
tool, check by digital output test.  
In the test, close the interlock SW.  
Checking drive PWB for signal  
Is P/J47-13PIN<=>P/J60-2PIN +24VDC?  
Check the clutch  
for slip, or the gear Go to step [18]  
for damage.  
17  
18  
Replace drive  
Go to step [19]  
PWB  
V-22  
Remedy  
Step  
19  
Check  
Yes  
No  
Checking harness ASSY FDR for  
continuity  
Replace  
Check the following for continuity.  
J47-13PIN<=>P475-2PIN  
J47-14PIN<=>P475-1PIN  
Checking tray1 turn clutch ASSY for  
resistance value  
Remove the clutch connector J475.  
Is J475-1PIN<=>J475-2PIN less than  
200?  
Checking harness ASSY DRV2 for  
continuity  
Is J12-9PIN<=>J42-22PIN continuous  
normally?  
Checking tray1 feed solenoid for operation  
Does the feed gear in the feeder run when  
printing 1 sheet?  
harness ASSY  
FDR  
Go to step [20]  
Replace tray1  
turn clutch  
ASSY  
20  
21  
22  
Go to step [21]  
Replace  
harness ASSY  
DRV2  
Replace MCU and  
HVPS PWB  
Check parts for  
missing and  
Go to step [23]  
Go to step [24]  
change paper, if  
no problem  
Checking tray1 feed solenoid  
Does tray1 feed solenoid function  
normally?  
Using tray1 feed solenoid diagnostic tool,  
check by digital output test.  
In the test, close the interlock SW.  
Check the spring  
and stopper of  
tray1 feed  
23  
solenoid for  
disengagement  
Checking drive PWB for signal  
Is P/J47-11PIN<=>P/J60-2PIN +24VDC?  
Checking harness ASSY FDR for  
continuity  
Check the following for continuity.  
J47-11PIN<=>P474-2PIN  
Replace drive  
PWB  
24  
25  
Go to step [25]  
Go to step [26]  
Replace  
harness ASSY  
FDR  
J47-12PIN<=>P474-1PIN  
Checking tray1 feed solenoid for  
resistance value  
Replace tray1  
feed solenoid  
26  
Go to step [27]  
Remove the solenoid connector J474.  
Is J474-1PIN<=>J474-2PIN less than  
100?  
Checking harness ASSY DRV2 for  
continuity  
Is J12-10PIN<=>J42-21PIN continuous  
normally?  
Checking MSI turn clutch for operation  
Does the turn roll in the MSI run when  
printing 1 sheet?  
Replace  
Replace MCU and  
HVPS PWB  
27  
28  
harness ASSY  
DRV2  
Go to step [29]  
Go to step [31]  
Checking MSI turn clutch  
Check the clutch  
for slip, or the gear  
for damage.  
Does MSI turn clutch function normally?  
Using MSI turn clutch diagnostic tool,  
check by digital output test  
In the test, close the interlock SW.  
29  
Go to step [30]  
V-23  
Remedy  
Step  
30  
Check  
Yes  
No  
Checking clutch ASSY MSI turn for  
resistance value  
Replace MCU and  
HVPS PWB  
Replace MSI  
turn clutch  
Remove the clutch connector J19.  
Is J19-1PIN<=>J19-2PIN less than 200?  
Checking solenoid feed MSI for operation  
Does the feed gear in the MSI run when  
printing 1 sheet?  
Check parts for  
missing and  
31  
32  
Go to step [32]  
Go to step [33]  
change paper, if  
no problem  
Checking MSI feed solenoid  
Does MSI feed solenoid function  
normally?  
Check the spring  
and stopper of  
Using MSI feed solenoid diagnostic tool,  
check by digital output test.  
In the test, close the interlock SW.  
Checking MSI feed solenoid for resistance  
value  
MSI feed solenoid  
for disengagement  
Replace MSI  
feed solenoid  
33  
34  
35  
Remove J132 from MSI feed solenoid  
Is J132-1PIN<=>J132-2PIN less than  
100?  
Go to step [34]  
Go to step [35]  
Checking harness ASSY front 2 for  
continuity  
Replace  
Check the following for continuity.  
P132-1PIN<=>J139-11PIN  
P132-2PIN<=>J139-10PIN  
Checking harness ASSY front 1A for  
continuity  
harness ASSY  
front 2  
Replace  
Replace MCU and  
HVPS PWB  
Check the following for continuity.  
P139-1PIN<=>J13-11PIN  
P139-2PIN<=>J13-10PIN  
harness ASSY  
front 1A  
V-24  
Media Type Mismatch FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
OHP sensor replacing condition  
Chute ASSY REGI replacing condition  
Checking OHP sensor  
Replace the parts  
concerned  
1
Go to step [2]  
Does OHP sensor function normally?  
Using diagnostic tool, check by digital  
input test.  
Checking MCU and HVPS PWB for signal  
Is P/J32-2PIN<=>P/J32-1PIN 0VDC?  
Checking MCU and HVPS PWB for signal  
Make the paper approach to the sensor.  
Replace MCU and  
HVPS PWB  
2
3
4
Go to step [3]  
Go to step [5]  
Go to step [5]  
Go to step [4]  
Replace MCU and  
Does P/J32-2PIN<=>P/J32-1PIN change HVPS PWB  
from 0VDC to +3.3VDC?  
Checking MCU and HVPS PWB for signal  
Is P/J32-3PIN<=>P/J32-1PIN +5VDC?  
sensor  
Replace MCU  
and HVPS  
PWB  
Replace OHP  
5
Yellow Toner Cartridge Detached FIP  
Step Check  
Remedy  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Cartridge replacing condition  
Toner cartridge switch ASSY (Y) replacing  
condition  
Toner cartridge switch ASSY (Y) actuator  
Replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Toner cartridge switch ASSY (Y)  
connector replacing condition  
Checking toner cartridge switch ASSY  
Does toner cartridge switch ASSY function  
normally?  
Replace MCU and  
HVPS PWB  
2
Go to step [3]  
Using diagnostic tool, check by digital  
input test.  
Checking drive PWB for signal  
Is P/J51-11PIN<=>P/J51-12PIN 0VDC?  
Checking toner cartridge switch ASSY (Y)  
for signal  
3
4
Go to step [4]  
Go to step [5]  
Go to step [7]  
Go to step [6]  
Is P/J431-2PIN<=>P/J431-1PIN 0VDC?  
Checking toner cartridge switch ASSY (Y)  
for continuity  
Is P431-2PIN<=>P431-1PIN of toner  
Cartridge switch ASSY (Y) continuous  
normally?  
Replace toner  
cartridge  
switch ASSY  
(Y)  
5
Go to step [6]  
Checking harness ASSY TNR for  
continuity  
Is J51<=>J431 continuous normally?  
Checking drive PWB for signal  
Is P/J42-4PIN<=>P/J42-14PIN 0VDC?  
Replace  
harness ASSY  
TNR  
Replace drive  
PWB  
6
7
Go to step [7]  
Go to step [8]  
V-25  
Remedy  
Step  
8
Check  
Yes  
No  
Checking MCU and HVPS PWB for signal  
Is P/J12-27PIN<=>P/12-17PIN of MCU  
and HVPS PWB 0VDC?  
Replace MCU and  
HVPS PWB  
Go to step [9]  
Checking harness ASSY DRV2 for  
continuity  
Is J12<=>J42 continuous normally?  
Replace  
harness ASSY  
DRV2  
Replace MCU and  
HVPS PWB  
9
Magenta Toner Cartridge Detached FIP  
Step Check  
Remedy  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Cartridge replacing condition  
Toner cartridge switch ASSY (M) replacing  
condition  
Toner cartridge switch ASSY (M) actuator  
replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Toner cartridge switch ASSY (M)  
connector replacing condition  
Checking toner cartridge switch ASSY  
Does toner cartridge switch ASSY function  
normally?  
Replace MCU and  
HVPS PWB  
2
Go to step [3]  
Using diagnostic tool, check by digital  
input test.  
Checking drive PWB for signal  
Is P/J51-13PIN<=>P/J51-14PIN 0VDC?  
Checking toner cartridge switch ASSY (M)  
for signal  
3
4
Go to step [4]  
Go to step [5]  
Go to step [7]  
Go to step [6]  
Is P/J432-2PIN<=>P/J432-1PIN 0VDC?  
Checking toner cartridge switch ASSY (M)  
for continuity  
Is P432-2PIN<=>P432-1PIN of toner  
cartridge switch ASSY(M) continuous  
normally?  
Replace toner  
cartridge  
switch  
5
Go to step [6]  
ASSY (M)  
Checking harness ASSY TNR for  
continuity  
Replace  
harness ASSY  
TNR  
Replace drive  
PWB  
6
7
8
Go to step [7]  
Go to step [8]  
Is J51<=>J432 continuous normally?  
Checking drive PWB for signal  
Is P/J42-5PIN<=>P/J42-14PIN 0VDC?  
Checking MCU and HVPS PWB for signal  
Is P/J11-26PIN<=>P/11-17PIN of MCU  
and HVPS PWB 0VDC?  
Replace MCU and  
HVPS PWB  
Go to step [9]  
Checking harness ASSY DRV2 for  
continuity  
Is J12<=>J42 continuous normally?  
Replace  
harness ASSY  
DRV2  
Replace MCU and  
HVPS PWB  
9
V-26  
Cyan Toner Cartridge Detached FIP  
Step Check  
Remedy  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Cartridge replacing condition  
Toner cartridge switch ASSY (C) replacing  
condition  
Toner cartridge switch ASSY (C) actuator  
replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Toner cartridge switch ASSY (C)  
connector replacing condition  
Checking toner cartridge switch ASSY  
Does toner cartridge switch ASSY function  
normally?  
Replace MCU and  
HVPS PWB  
2
Go to step [3]  
Using diagnostic tool, check by digital  
input test.  
Checking drive PWB for signal  
Is P/J51-29PIN<=>P/J51-30PIN 0VDC?  
Checking toner cartridge switch ASSY (C)  
for signal  
3
4
Go to step [4]  
Go to step [5]  
Go to step [7]  
Go to step [6]  
Is P/J433-2PIN<=>P/J433-1PIN 0VDC?  
Checking toner cartridge switch ASSY (C)  
for continuity  
Is P433-2PIN<=>P433-1PIN of toner  
cartridge switch ASSY (C) continuous  
normally?  
Replace toner  
cartridge  
switch  
5
Go to step [6]  
ASSY (C)  
Checking harness ASSY TNR for  
continuity  
Is J51<=>J433 continuous normally?  
Checking drive PWB for signal  
Is P/J42-6PIN<=>P/J42-14PIN 0VDC?  
Replace  
harness ASSY  
TNR  
Replace drive  
PWB  
6
7
Go to step [7]  
Go to step [8]  
Checking MCU  
and HVPS PWB  
for signal  
Replace MCU  
and HVPS  
PWB go to  
step  
Is P/J12-  
8
9
25PIN<=>P/12-  
17PIN of MCU  
and HVPS PWB  
0VDC?  
[9]  
Checking harness ASSY DRV2 for  
continuity  
Is J12<=>J42 continuous normally?  
Replace  
harness ASSY  
DRV2  
Replace MCU and  
HVPS PWB  
V-27  
Black Toner Cartridge Detached FIP  
Step Check  
Remedy  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Cartridge replacing condition  
Toner cartridge switch ASSY (K) replacing  
condition  
Toner cartridge switch ASSY (K) actuator  
replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Toner cartridge switch ASSY (K)  
connector replacing condition  
Checking toner cartridge switch ASSY  
Does toner cartridge switch ASSY  
function normally?  
Replace MCU and  
HVPS PWB  
2
Go to step [3]  
Using diagnostic tool, check by digital  
input test.  
Checking drive PWB for signal  
Is P/J51-31PIN<=>P/J51-32PIN 0VDC?  
Checking toner cartridge switch ASSY (K)  
for signal  
3
4
Go to step [4]  
Go to step [5]  
Go to step [7]  
Go to step [6]  
Is P/J434-2PIN<=>P/J434-1PIN 0VDC?  
Checking toner cartridge switch ASSY (K)  
for continuity  
Is P434-2PIN<=>P434-1PIN of toner  
cartridge switch ASSY (K) continuous  
normally?  
Replace toner  
cartridge  
switch  
5
Go to step [6]  
ASSY (K)  
Checking harness ASSY TNR for  
continuity  
Replace  
harness ASSY  
TNR  
Replace drive  
PWB  
6
7
8
Go to step [7]  
Go to step [8]  
Is J51<=>J434 continuous normally?  
Checking drive PWB for signal  
Is P/J42-3PIN<=>P/J42-14PIN 0VDC?  
Checking MCU and HVPS PWB for signal  
Is P/J12-28PIN<=>P/12-17PIN of MCU  
and HVPS PWB 0VDC?  
Replace MCU and  
HVPS PWB  
Go to step [9]  
Checking harness ASSY DRV2 for  
continuity  
Is J12<=>J42 continuous normally?  
Replace  
harness ASSY  
DRV2  
Replace MCU and  
HVPS PWB  
9
V-28  
Transfer Roll Cartridge Detached FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Transfer roll cartridge ASSY replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
ADC sensor ASSY replacing condition  
Checking harness ASSY CTD for  
connection  
Is the harness ASSY CTD connected to  
the ADC sensor ASSY normally?  
Checking harness ASSY CTD for  
continuity  
Is J136<=>J1361 continuous normally?  
Checking harness ASSY front 1A for  
continuity  
Is P1361<=>J13 continuous normally?  
Checking harness ASSY front 1A for  
signal  
Replace the  
parts  
concerned  
2
Go to step [3]  
Replace  
harness ASSY  
CTD  
Replace  
harness ASSY  
front 1A  
3
4
5
Go to step [4]  
Go to step [5]  
Replace ADC  
sensor ASSY  
Go to step [6]  
Is P/J136-5PIN<=>P/J136-3PIN 0VDC?  
Checking transfer roll cartridge ASSY  
Check if an error occurs though the  
transfer roll cartridge ASSY was replaced  
with a new one.  
Replace MCU and  
HVPS PWB  
6
End of work  
Print Head Cartridge Detached FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Print head cartridge ASSY replacing  
condition  
PWBA CRUM in print head cartridge  
ASSY replacing  
Replace the parts  
concerned  
1
Go to step [2]  
condition  
Checking PWBA CRUM for connection  
Is PWBA CRUM connector connected to  
the harness connector normally?  
Replace  
2
3
4
Go to step [3]  
harness ASSY  
CRUM  
Checking harness ASSY CRUM for  
continuity  
Is J170<=>J71 continuous normally?  
Replace  
Go to step [4]  
Go to step [5]  
harness ASSY  
CRUM  
Checking harness ASSY EEPROM for  
continuity  
Is P71<=>J140 continuous normally?  
Replace  
harness ASSY  
EEPROM  
Checking print head cartridge ASSY  
Check if an error occurs though the print  
head cartridge ASSY was replaced with a  
new one.  
Replace MCU and  
HVPS PWB  
5
End of work  
V-29  
Yellow Toner Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Low toner sensor replacing condition  
Toner cartridge replacing condition  
Toner motor replacing condition  
Checking toner cartridge  
Replace the parts  
concerned  
1
Go to step [2]  
2
3
4
5
6
Check if an error occurs though the  
cartridge was replaced with a new one.  
Checking drive PWB for signal  
Is P/J51-16<=>P/J51-15 less than  
+0.2VDC?  
Go to step [3]  
End of work  
Go to step [4]  
Go to step [6]  
Go to step [5]  
Go to step [6]  
Go to step [7]  
Checking harness ASSY TNR for  
continuity  
Replace  
harness ASSY  
TNR  
Is J441<=>J51 continuous normally?  
Checking low toner sensor  
Check if an error occurs though the low  
toner sensor was replaced with a new one.  
Checking harness ASSY DRV2 for  
continuity  
End of work  
Replace  
harness ASSY  
DRV2  
Is J12-23<=>J42-8 continuous normally?  
Checking toner motor  
Does toner motor function normally?  
Using toner motor, check by digital output  
test.  
Check the toner  
stirring auger or  
gear for damage  
7
Go to step [8]  
In the test, close the interlock SW.  
Checking drive PWB for signal  
Is P/J51-1<=>P/J60-2 +24VDC?  
Checking harness ASSY TNR for  
continuity  
Replace drive  
PWB  
Replace  
harness ASSY  
TNR  
8
9
Go to step [9]  
Go to step [10]  
Is J511<=>J51 continuous normally?  
Checking toner motor  
10  
11  
Check if an error occurs though the toner  
motor was replaced with a new one.  
Checking harness ASSY DRV1 for  
continuity  
Check the following for continuity.  
J11-25<=>J41-16  
Go to step [11]  
End of work  
Replace drive  
PWB, and if still  
faulty, replace  
MCU and HVPS  
PWB  
Replace  
harness ASSY  
DRV1  
J11-26<=>J41-15  
J11-27<=>J41-14  
J11-28<=>J41-13  
V-30  
Magenta Toner Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Low toner sensor replacing condition  
Toner cartridge replacing condition  
Toner motor replacing condition  
Checking toner cartridge  
Replace the parts  
concerned  
1
Go to step [2]  
2
3
4
5
6
Check if an error occurs though the  
cartridge was replaced with a new one.  
Checking drive PWB for signal  
Is P/J51-18<=>P/J51-17 less than  
+0.2VDC?  
Go to step [3]  
End of work  
Go to step [4]  
Go to step [6]  
Go to step [5]  
Go to step [6]  
Go to step [7]  
Checking harness ASSY TNR for  
continuity  
Replace  
harness ASSY  
TNR  
Is J442<=>J51 continuous normally?  
Checking low toner sensor  
Check if an error occurs though the low  
toner sensor was replaced with a new one.  
Checking harness ASSY DRV2 for  
continuity  
End of work  
Replace  
harness ASSY  
DRV2  
Is J12-22<=>J42-9 continuous normally?  
Checking toner motor  
Does toner motor function normally?  
Using toner motor, check by digital output  
test.  
Check the toner  
stirring auger or  
gear for damage  
7
Go to step [8]  
In the test, close the interlock SW.  
Checking drive PWB for signal  
Is P/J51-6<=>P/J60-2 +24VDC?  
Checking harness ASSY TNR for  
continuity  
Replace drive  
PWB  
Replace  
harness ASSY  
TNR  
8
9
Go to step [9]  
Go to step [10]  
Is J512<=>J51 continuous normally?  
Checking toner motor  
10  
11  
Check if an error occurs though the toner  
motor was replaced with a new one.  
Checking harness ASSY DRV1 for  
continuity  
Check the following for continuity.  
J11-29<=>J41-12  
Go to step [11]  
End of work  
Replace drive  
PWB, and if still  
faulty, replace  
MCU and HVPS  
PWB  
Replace  
harness ASSY  
DRV1  
J11-30<=>J41-11  
J11-31<=>J41-10  
J11-32<=>J41-9  
V-31  
Cyan Toner Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Low toner sensor replacing condition  
Toner cartridge replacing condition  
Toner motor replacing condition  
Checking toner cartridge  
Replace the parts  
concerned  
1
Go to step [2]  
2
3
4
5
6
Check if an error occurs though the  
cartridge was replaced with a new one.  
Checking drive PWB for signal  
Is P/J51-34<=>P/J51-33 less than  
+0.2VDC?  
Go to step [3]  
End of work  
Go to step [4]  
Go to step [6]  
Go to step [5]  
Go to step [6]  
Go to step [7]  
Checking harness ASSY TNR for  
continuity  
Replace  
harness ASSY  
TNR  
Is J443<=>J51 continuous normally?  
Checking low toner sensor  
Check if an error occurs though the low  
toner sensor was replaced with a new one.  
Checking harness ASSY DRV2 for  
continuity  
End of work  
Replace  
harness ASSY  
DRV2  
Is J12-21<=>J42-10 continuous normally?  
Checking toner motor  
Does toner motor function normally?  
Using toner motor, check by digital output  
test.  
Check the toner  
stirring auger or  
gear for damage  
7
Go to step [8]  
In the test, close the interlock SW.  
Checking drive PWB for signal  
Is P/J51-19<=>P/J60-2 +24VDC?  
Checking harness ASSY TNR for  
continuity  
Replace drive  
PWB  
Replace  
harness ASSY  
TNR  
8
9
Go to step [9]  
Go to step [10]  
Is J513<=>J51 continuous normally?  
Checking toner motor  
10  
11  
Check if an error occurs though the toner  
motor was replaced with a new one.  
Checking harness ASSY DRV1 for  
continuity  
Check the following for continuity.  
J11-33<=>J41-8  
Go to step [11]  
End of work  
Replace drive  
PWB, and if still  
faulty, replace  
MCU and HVPS  
PWB  
Replace  
harness ASSY  
DRV1  
J11-34<=>J41-7  
J11-35<=>J41-6  
J11-36<=>J41-5  
V-32  
Black Toner Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Low toner sensor replacing condition  
Toner cartridge replacing condition  
Toner motor replacing condition  
Checking toner cartridge  
Replace the parts  
concerned  
1
Go to step [2]  
2
3
4
5
Check if an error occurs though the  
cartridge was replaced with a new one.  
Checking drive PWB for signal  
Is P/J51-36<=>P/J51-35 less than  
+0.2VDC?  
Checking harness ASSY TNR for  
continuity  
Is J441<=>J51 continuous normally?  
Go to step [3]  
End of work  
Go to step [4]  
Go to step [6]  
Go to step [5]  
Go to step [6]  
Replace  
harness ASSY  
TNR  
Checking low toner sensor  
Check if an error occurs though the low  
toner sensor was replaced with a new one.  
Checking harness ASSY DRV2 for  
continuity  
End of work  
With tool go to  
step [7]  
Without tool go to  
step [8]  
Replace  
harness ASSY  
DRV2  
6
7
Is J12-24<=>J42-7 continuous normally?  
Checking toner motor  
Does toner motor function normally?  
Using toner motor, check by digital output  
test.  
Check the toner  
stirring auger or  
gear for damage  
Go to step [8]  
In the test, close the interlock SW.  
Checking PWBA DRV3 for signal  
Is P/J51-24<=>P/J60-2 +24VDC?  
Checking harness ASSY TNR for  
continuity  
Replace drive  
PWB  
Replace  
harness ASSY  
TNR  
8
9
Go to step [9]  
Go to step [10]  
Is J514<=>J51 continuous normally?  
Checking toner motor  
10  
11  
Check if an error occurs though the toner  
motor was replaced with a new one.  
Checking harness ASSY DRV1 for  
continuity  
Check the following for continuity.  
J11-37<=>J41-4  
Go to step [11]  
End of work  
Replace drive  
PWB, and if still  
faulty, replace  
MCU and HVPS  
PWB  
Replace  
harness ASSY  
DRV1  
J11-38<=>J41-3  
J11-39<=>J41-2  
J11-40<=>J41-1  
V-33  
Transfer Roll Cartridge Life Over FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Transfer roll cartridge ASSY replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
Waste toner sensor replacing condition  
Checking waste toner sensor  
Does waste toner sensor function  
normally?  
Waste toner sensor using diagnostic tool,  
check by Digital Input Test.  
Checking harness ASSY TFLSNS for  
signal  
Remove the transfer roll cartridge ASSY  
Is P/J141-2PIN<=>P/J141-1PIN 0VDC?  
Checking harness ASSY TFLSNS for  
signal  
Is P/J141-3PIN<=>P/J141-1PIN +5VDC?  
Checking harness ASSY TFLSNS for  
continuity  
Is J142<=>J142 continuous normally?  
Checking transfer roll cartridge ASSY  
Check if an error occurs though the  
transfer roll cartridge ASSY was replaced  
with a new one.  
2
3
Go to step [6]  
Go to step [3]  
Go to step [4]  
Go to step [6]  
Go to step [5]  
Replace  
4
5
harness ASSY  
EEPROM  
Replace  
harness ASSY  
TFLSNS  
Replace waste  
toner sensor  
Replace MCU and  
HVPS PWB  
6
End of work  
Print Head Cartridge Life Over FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Print head cartridge ASSY replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
PWBA CRUM in print head cartridge  
ASSY replacing condition  
Checking PWBA CRUM for connection  
Is PWBA CRUM connector connected to  
the harness connector normally?  
Checking harness ASSY CRUM for  
continuity  
Is J170<=>J71 continuous normally?  
Checking harness ASSY EEPROM for  
continuity  
Is P71<=>J140 continuous normally?  
Checking print head cartridge ASSY  
Check if an error occurs though the print  
head cartridge ASSY was replaced with a  
new one.  
Replace  
harness ASSY  
CRUM  
Replace  
harness ASSY  
FSR2  
Replace  
harness ASSY  
EEPROM  
2
3
4
Go to step [3]  
Go to step [4]  
Go to step [5]  
Replace MCU and  
HVPS PWB  
5
End of work  
V-34  
CRUM ID Error FIP  
Remedy  
Step  
Check  
Yes  
No  
Check the following for evidence of fault.  
Print head cartridge ASSY replacing  
condition  
PWBA CRUM in print head cartridge  
ASSY replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Checking PWBA CRUM for connection  
Is PWBA CRUM connector connected to  
the harness connector normally?  
Checking harness ASSY CRUM for  
continuity  
Is J170<=>J71 continuous normally?  
Checking harness ASSY EEPROM for  
continuity  
Is P71<=>J140 continuous normally?  
Checking print head cartridge ASSY  
Check if an error occurs though the print  
head cartridge ASSY was replaced with a  
new one.  
Replace  
harness ASSY  
CRUM  
Replace  
harness ASSY  
CRUM  
Replace  
harness ASSY  
EEPROM  
2
3
4
Go to step [3]  
Go to step [4]  
Go to step [5]  
Replace MCU and  
HVPS PWB  
5
End of work  
CTD Sensor Dustiness FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Transfer roll cartridge ASSY replacing  
condition  
Replace the parts  
concerned  
1
Go to step [2]  
ADC sensor ASSY replacing condition  
Checking harness ASSY CTD for  
connection  
Is the harness ASSY CTD connected to  
the ADC sensor ASSY normally?  
Checking harness ASSY CTD for  
continuity  
Is J136<=>J1361 continuous normally?  
Checking harness ASSY front 1A for  
continuity  
Is P1361<=>J13 continuous normally?  
Checking harness ASSY CTD for signal  
Is P/J1361-1PIN<=>P/J1361-3PIN 0VDC?  
Replace the  
parts  
concerned  
2
Go to step [3]  
Replace  
harness ASSY  
CTD  
Replace  
harness ASSY  
front 1A  
Replace MCU  
and HVPS  
PWB  
3
4
5
Go to step [4]  
Go to step [5]  
Replace ADC  
sensor ASSY  
V-35  
Front Cover FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Drive PWB replacing condition  
Front cover replacing condition  
Interlock SW actuator replacing condition  
Checking interlock SW  
Replace the parts  
concerned  
1
Go to step [2]  
Does interlock SW function normally?  
Using interlock SW, check by digital  
output test.  
Checking drive PWB for signal  
Close front cover  
Replace MCU and  
HVPS PWB  
2
3
Go to step [3]  
Replace MCU and Replace drive  
HVPS PWB PWB  
Is P/J41-35PIN<=>P/J41-22 0VDC?  
Full Stack FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Full stack sensor replacing condition  
actuator replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Checking full stack sensor  
Does full stack sensor function normally?  
Full stack sensor using diagnostic tool,  
check by Digital Input Test.  
Checking harness ASSY front 2 for signal  
Is P/J139-6PIN<=>P/J139-5PIN  
+3.3VDC?  
Replace MCU and  
HVPS PWB  
2
3
Go to step [3]  
Go to step [4]  
Replace MCU and  
HVPS PWB  
Checking harness ASSY front 2 for signal  
Is P/J139-4PIN<=>P/J139-5PIN  
+3.3VDC?  
Replace  
harness ASSY  
front 1A  
Replace MCU  
and HVPS  
PWB  
Replace full stack  
sensor  
4
V-36  
Upper Cassette Detached FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Size switch ASSY replacing condition  
actuator replacing condition  
Replace the parts  
concerned  
1
Go to step [2]  
Paper cassette replacing condition  
Checking size switch ASSY  
Does size switch ASSY function normally? Replace MCU and  
2
3
Go to step [3]  
Size switch ASSY using diagnostic tool,  
check by digital input test.  
HVPS PWB  
Checking drive PWB for signal  
Check the following, and does the result  
meet the combination table?  
P/J47-1PIN<=>P/J47-3PIN  
Replace size  
switch ASSY  
Go to step [4]  
P/J47-2PIN<=>P/J47-3PIN  
P/J47-4PIN<=>P/J47-3PIN  
Refer to paper size control of operation  
principle  
Checking drive PWB for signal  
Check the following, and does the result  
meet the combination table?  
P/J42-16PIN<=>P/J42-15PIN  
P/J42-17PIN<=>P/J42-15PIN  
P/J42-18PIN<=>P/J42-15PIN  
Replace MCU and Replace drive  
HVPS PWB PWB  
4
Tray1 Paper Near Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Tray1 low paper sensor replacing  
condition  
Sensor actuator replacing condition  
Does the error occur even if the paper is  
added?  
Checking tray1 low paper sensor  
Does tray1 low paper sensor function  
normally?  
Tray1 low paper sensor using diagnostic  
tool, check by digital input test.  
Checking drive PWB for signal  
Is P/J47-10<=>P/J47-9 +3.3VDC?  
Checking drive PWB for signal  
Is P/J42-20<=>P/J42-15 +3.3VDC?  
Replace the parts  
concerned  
v
2
3
Go to step [2]  
End of work  
Go to step [3]  
Replace MCU and  
HVPS PWB  
Go to step [4]  
Go to step [5]  
4
5
6
Go to step [6]  
Replace MCU  
and HVPS  
PWB  
Replace drive  
PWB  
Checking drive PWB for signal  
Is P/J47-8<=>P/J47-9 +3.3VDC?  
Replace tray1 low Replace drive  
paper sensor PWB  
V-37  
Tray2 Paper Near Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Tray2 low paper sensor replacing  
condition  
Sensor actuator replacing condition  
Does the error occur even if the paper is  
added?  
Checking tray2 low paper sensor  
Does tray2 low paper sensor function  
normally?  
Tray2 low paper sensor using diagnostic  
tool, check by digital input test.  
Checking feeder PWB for signal  
Is P/J82-10 PIN <=>P/J82-9 +3.3VDC?  
Checking feeder PWB for signal  
Is P/J81-18 PIN <=>P/J81-23 +3.3VDC?  
Harness ASSY OPFPLG/ harness ASSY  
Checking OPFREC/ harness ASSY  
OPFMAIN for continuity  
Check the following for continuity.  
J81-18PIN<=>J810-A9PIN<=>J210-  
B9PIN<=>J21-9PIN  
Checking feeder PWB for signal  
Is P/J82-8PIN<=>P/J82-9 +5VDC?  
Replace the parts  
concerned  
1
2
3
Go to step [2]  
Go to step [3]  
End of work  
Replace MCU and  
HVPS PWB  
Go to step [4]  
4
5
Go to step [7]  
Go to step [5]  
Go to step [6]  
Replace feeder  
PWB  
Replace MCU and Replace  
HVPS PWB  
Replace feeder  
PWB  
harness ASSY  
which is not  
continuous  
6
7
Replace tray2  
low paper sensor  
Replace feeder  
PWB  
Tray3 Paper Near Empty FIP  
Remedy  
Step  
Check  
Yes  
No  
Initial setting  
Check the following for evidence of fault.  
Tray3 low paper sensor replacing  
condition  
Sensor actuator replacing condition  
Does the error occur even if the paper is  
added?  
Checking tray3 low paper sensor  
Does tray3 low paper sensor function  
normally?  
Tray3 low paper sensor using diagnostic  
tool, check by digital input test.  
Checking feeder PWB for signal  
Is P/J83-10 PIN <=>P/J83-9 +3.3VDC?  
Checking feeder PWB for signal  
Is P/J81-17 PIN <=>P/J81-23 +3.3VDC?  
Harness ASSY OPFPLG/ harness ASSY  
Checking OPFREC/ harness ASSY  
OPFMAIN for continuity  
Check the following for continuity.  
J81-17PIN<=>J810-A10PIN<=>J210-  
B10PIN<=>J21-10PIN  
Checking feeder PWB for signal  
Is P/J83-8PIN<=>P/J83-9 +5VDC?  
Replace the parts  
concerned  
1
2
3
Go to step [2]  
Go to step [3]  
End of work  
Replace MCU and  
HVPS PWB  
Go to step [4]  
4
5
Go to step [7]  
Go to step [5]  
Go to step [6]  
Replace feeder  
PWB  
Replace MCU and Replace  
HVPS PWB  
Replace feeder  
PWB  
harness ASSY  
which is not  
continuous  
6
7
Replace tray3  
low paper sensor  
Replace feeder  
PWB  
V-38  
4.  
HOW TO USE DIAG. (C/E) MODE  
4.1  
Roles of the Control Panel in Diag. (C/E) Mode  
(Note: Control panel display may differ depending upon the machine configuration.)  
5.Menu  
1. LCD  
4. Job Cancel/Back button  
Job  
Menu  
Form Feed  
Set  
Cancel  
Ready  
Alarm  
Back  
2.Up/Down button  
3.Form Feed/Set button  
Fig.5-2  
1. LCD panel: Displaying a diagnostic item and its result.  
2. Up/Down buttons: Selecting a diagnostic item.  
Selecting data at parameter setting.  
3. Form Feed/Set button: Determining a diagnostic item.  
Executing a diagnosis.  
Determining a parameter at parameter setting.  
4. Job Cancel/Back button: Resetting a diagnostic item.  
(Returning to the menu one level higher)  
Terminating each digital input/output test.  
5. Menu button: Exiting digital input/output test mode.  
6. Right button: Printing registration adjustment data at parameter setting for  
determination.  
4.2  
4.3  
Entering Diag. (C/E) Mode  
1. Turn the power on while pressing the  
2. Enter the password.  
and  
buttons together.  
(Password: Press the  
button twice and the Form Feed/Set button.)  
Exiting Diag. (C/E) Mode  
1. Stop the current diagnosis.  
2. Press the Job Cancel/Back button to return to the top of the diagnostic menu.  
3. Select [CE Maintenance Complete] with the and buttons.  
4. Press the Form Feed/Set button to determine the selection.  
5. Select [Complete] with the and buttons.  
6. Press the Form Feed/Set button to determine the selection.  
7. Exit Diag. (C/E) mode. (Reboot in Normal mode.)  
4.4  
Diag. (C/E) Mode Functions  
In Diag. (C/E) mode, the printer provides the following six functions:  
1. ESS diagnosis  
2. Test print  
3. IOT diagnosis  
4. Parameter setting  
5. Installation setting  
6. Information print  
V-39  
4.5  
Operation Procedure  
After entering Diag. (C/E) mode, select a diagnostic item with the  
or  
button and  
press the Form Feed/Set button to determine the selection. If there is a lower menu,  
select a diagnostic item with the or button and press the Form Feed/Set button to  
determine the selection. Once a diagnostic item has been selected, press the Form  
Feed/Set button to execute the processing. To exit the diagnosis and return to the upper  
menu, press the Job Cancel/Back button.  
Example of operation for Digital Input Test (DI-31 REGI. SENSOR)  
CE Maintenance  
ESS Diag  
S
C
S
Digital Input  
DI-1 OFF  
CE Maintenance  
IOT Diag  
IOT Diag  
Digital Input  
M
S
C
CE Maintenance  
Print info  
IOT Diag  
Digital Output  
Digital Input  
DI-2 OFF  
Digital Input  
DI-13 H 1  
CE Maintenance  
Complete  
IOT Diag  
NVM Settings  
CE Maintenance  
Installation Set  
Digital Input  
DI-31 OFF  
CE Maintenance  
Test Print  
Digital Input  
DI-32 OFF  
CE Maintenance  
Parameter  
Digital Input  
DI-55 OFF  
Form Feed/Set button  
Job Cance/Back button  
Menu button  
S
C
M
Fig.5-3  
V-40  
4.6  
Diag. Mode Menu Tree  
CE Maintenance  
ESS Diag  
Normal Diag  
CodeROM Test  
FontROM Test  
EEPROM Test  
DRAM Test  
Centro Test  
USB Test  
REMORA Test  
Cont Panel Test  
IOT Test  
HD Test  
IOT Diag  
Digital Input  
Digital Output  
Power Save Mode  
NVM Settings  
NVM Edit  
NVM Save  
NVM Load  
NVM Print Info  
Print Info  
Config Page  
Print Settings  
Complete  
Error  
Complete  
Dip Switch 0  
Dip Switch 1  
Dip Switch 2  
Dip Switch 3  
Serial No.  
Installation Set  
Count Display  
Configuration  
Print Counter  
Col Print Count  
B/W Print Count  
Prn Counter Reset  
Tot Print Count  
Count copy M to B  
Count copy B to M  
NVM Init  
Backup Col Count  
Backup B/W Count  
Backup Tot Count  
Col Error Count  
B/W Error Count  
JOB LOG Init  
No Image [IOT]  
H Patt 600 [IOT]  
Grid 2 [ESS]  
Test print  
Cyan 20% [ESS]  
Magenta 20% [ESS]  
Yellow 20% [ESS]  
Black 20% [ESS]  
Continued the down page  
Fig.5-4  
V-41  
Continued from the up page  
Test Print  
CMY 20% [ESS]  
Gradation [ESS]  
NIP adjust [ESS]  
PF Regi adj  
Parameter  
P Regi K to Paper  
P Regi 600 K to M  
P Regi 600 K to Y  
P Regi 600 K to C  
P Regi 1200 K to M  
P Regi 1200 K to Y  
P Regi 1200 K to C  
Scan Regi K to M  
Scan Regi K to Y  
Scan Regi K to C  
Scan Regi MP  
Scan Regi Tray 1  
Scan Regi Tray 2  
Scan Regi Tray 3  
Scan Regi Duplex  
Life Y Toner  
Life M Toner  
Life C Toner  
Life K Toner  
Life BTR 1  
(Life Transfer Roll Cartridge 1)  
Life BTR 2  
(Life Transfer Roll Cartridge 2)  
Life Fuser  
Life Printer  
Life Head Sheet  
Life Head Time  
Life Head Y Disp  
Life Head M Disp  
Life Head C Disp  
Life Head K Disp  
Print  
Fig.5-5  
V-42  
4.7  
ESS Diagnosis  
Function: Executing an ESS related diagnosis.  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance ESS Diag] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to diagnostic menu selection in [CE  
Maintenance ESS Diag].  
4. Select a diagnostic item with the  
or  
button. (For the contents of the  
diagnostic items, refer to the table below.)  
5. Press the Form Feed/Set button to determine the selection.  
Example: Code ROM test display screen  
CodeROM Test  
Start  
6. Press the Form Feed/Set button again to execute the diagnosis. The LCD panel displays  
the result ([No Problem]/[Error]).  
Example: Code ROM test  
CodeROM Test  
Processing  
CodeROM Test  
No Problem  
7. Press the Job Cancel/Back button to return to the previous screen.  
Diagnostic items  
Item  
Description  
Normal Diag  
CodeROM Test  
FontROM Test  
Executes a diagnosis in Normal mode.  
Calculates the ROM checksum and compares it with the stored value.  
Calculates the font ROM checksum and compares it with the  
stored value.  
EEPROM Test  
DRAM Test  
Writes, reads, and verifies the EEPROM diagnostic area.  
Performs a OPEN/SHORT test on the DRAM address line.  
Writes, reads, and verifies the DRAM front.  
Performs a register check test.  
Centro Test  
USB Test  
Performs a register check test.  
REMORA Test  
Cont Panel Test  
IOT Test  
Performs a register check test.  
Tests the LED, LCD, and buttons on the control panel.  
Tests IOT communications.  
HD Test  
Tests the hard disk.  
V-43  
Details of the control panel test  
For a control panel check, each button is pressed to see whether the three LED  
indicator lights go on or off and how the LCD panel display changes.  
The table below lists the relationships between the buttons and the LED indicator  
lights and LCD panel display.  
Button  
LED  
Error  
LCD  
"UP" display  
Ready  
Ready  
Ready  
Ready  
Error  
Error  
Error  
“DOWN” display  
“LEFT” display  
“RIGHT” display  
Form Feed/Set  
Menu  
Ready  
Ready  
Ready  
Error  
Error  
Error  
“SET” display  
“MENU” display  
“STOP” display  
(End of test)  
Job Cancel/Back  
(End of test)  
and  
(together)  
: Not lit  
: Lit  
4.8  
IOT Diagnosis  
Function: Executing an IOT-related diagnosis  
Diagnostic items  
Item  
Description  
Digital Input test  
Digital Output test  
Power save mode  
NVM setting  
NVM Edit  
Performs a digital input component test.  
Performs a digital output component test.  
Performs Power save mode  
Reads or writes NVM values.  
NVM setting  
NVM Save  
Saves IOT NVM information into ESS.  
Loads IOT NVM information into ESS.  
Prints IOT NVM information.  
NVM setting  
NVM Load  
NVM setting  
NVM Print Info  
V-44  
4.8.1 Digital input test  
Function: Displaying a sensor or switch signal level on the LCD panel as "H" or "L" and  
also the number of changes from "H" to "L" or "L" to "H"  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance IOT Diag] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to diagnostic menu selection in [CE  
Maintenance IOT Diag].  
4. Select [IOT Diag Digital Input] with the  
and  
buttons.  
5. Press the Form Feed/Set button to advance to diagnostic menu selection in [IOT  
Diag Digital Input].  
6. Select the menu No. of a digital input test with the  
and  
buttons.  
(For the contents of the diagnostic items, refer to the table at right.)  
7. Press the Form Feed/Set button to execute the diagnosis.  
8. The LCD panel displays the sensor status (H: Sensor OFF, L: Sensor ON) and the  
number of sensor ON/OFF changes.  
9. Press the Job Cancel/Back button to terminate the diagnosis.  
10. Press the Menu button to terminate the diagnosis if in progress and return to the  
[IOT Diag Digital Input] display.  
Digital input test code table  
Menu  
No.  
Reference  
BSD  
Part/signal name  
Test method  
FULL STACK SENSOR  
Block and unblock the sensor  
with an actuator.  
Block and unblock the sensor  
with an actuator.  
Block and unblock the sensor  
with an actuator.  
Block and unblock the sensor  
with an actuator.  
DI-0  
DI-1  
DI-2  
DI-3  
2.9.4  
2.9.4  
2.9.1  
2.7.6  
DUP JAM SENSOR  
Exit Sensor  
(FUSER ASSY)  
REGI. SENSOR  
SCANNER RDY  
FUSER RDY  
DI-4  
DI-5  
DI-6  
DI-7  
2.5.1  
2.9.1  
2.8.7  
2.1.1  
CTD RDY  
INTERLOCK OPEN  
Open and close the front cover.  
TONER CARTRIDGE SWITCH Replace and remove the toner  
ASSY (Y) cartridge.  
TONER CARTRIDGE SWITCH Replace and remove the toner  
ASSY (M) cartridge.  
TONER CARTRIDGE SWITCH Replace and remove the toner  
ASSY (C) cartridge.  
TONER CARTRIDGE SWITCH Replace and remove the toner  
DI-8  
DI-9  
DI-a  
DI-b  
2.8.3  
2.8.3  
2.8.3  
2.8.3  
ASSY (K)  
cartridge.  
LOW TONER SENSOR (Y)  
DI-c  
DI-d  
DI-e  
DI-f  
2.8.5  
2.8.5  
2.8.5  
2.8.5  
LOW TONER SENSOR (M)  
LOW TONER SENSOR (C)  
LOW TONER SENSOR (K)  
MSI NO PAPER SENSOR  
Block and unblock the sensor  
with an actuator.  
Block and unblock the sensor  
with an actuator.  
DI-10  
DI-11  
2.7.2  
2.6.1  
TRAY1 NO PAPER SENSOR  
V-45  
Menu  
No.  
Reference  
BSD  
Part/signal name  
Test method  
TRAY2 NO PAPER SENSOR  
Block and unblock the sensor  
with an actuator.  
Block and unblock the sensor  
with an actuator.  
DI-12  
DI-13  
2.6.2  
2.6.3  
TRAY3 NO PAPER SENSOR  
TRAY1 LOW PAPER SENSOR Increase and decrease paper on  
Tray1 for sensor detection and  
DI-15  
DI-16  
DI-17  
2.6.1  
2.6.2  
2.6.3  
no detection.  
TRAY2 LOW PAPER SENSOR Increase and decrease paper on  
Tray2 for sensor detection and  
no detection.  
TRAY3 LOW PAPER SENSOR Increase and decrease paper on  
Tray3 for sensor detection and  
no detection.  
TRAY1 SIZE SWITCH ASSY  
DI-18  
DI-20  
DI-28  
DI-30  
DI-31  
2.6.1  
2.6.2  
2.6.3  
2.9.3  
2.9.3  
TRAY2 SIZE SWITCH ASSY  
TRAY3 SIZE SWITCH ASSY  
FUSER FAN ALARM  
REAR FAN ALARM  
Hold and release fuser fan.  
Hold and release rear fan.  
NO PRINT HEAD CARTRIDGE Mount and remove print head  
DI-32  
DI-33  
DI-34  
2.3.2  
2.8.6  
2.7  
ASSY  
cartridge ASSY.  
WASTE TONER SENSOR  
Block and unblock the sensor  
with paper.  
NO Tray Module  
Connect and disconnect the tray  
module.  
4.8.2 Digital output test  
Function: Activating a solenoid, clutch, motor, or other parts.  
Capable of activating two or more parts simultaneously. (Parallel execution)  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance IOT Diag] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to diagnostic menu selection in [CE  
Maintenance IOT Diag].  
4. Select [IOT Diag Digital Output] with the  
and  
buttons.  
5. Press the Form Feed/Set button to advance to diagnostic menu selection in [IOT  
Diag Digital Output].  
6. Select the menu No. of a digital output test with the  
and  
buttons.  
7. (For the contents of the diagnostic items, refer to the table below.)  
8. Press the Form Feed/Set button to execute the diagnosis.  
9. The part is activated and the LCD panel displays [EXEC].  
(The display is [READY] when the part is not in operation.)  
10. Press the Job Cancel/Back button to terminate the diagnosis.  
11. Press the Menu button to terminate all parts in operation and return to the  
[IOT Diag Digital Output] display.  
V-46  
Digital output test code table  
Menu  
Reference  
BSD  
Part/signal name  
No.  
Test method  
MAIN DRIVE ASSY  
(NORMAL SPEED)  
WARNING!<CAUTION!>  
Check by hearing and visually that  
the motor rotates in normal mode.  
WARNING!<CAUTION!>  
Check by hearing and visually that  
the motor rotates in half-speed  
mode.  
DO-0  
DO-1  
DO-3  
2.4.1  
2.4.1  
2.9.5  
MAIN DRIVE ASSY  
(HALF SPEED)  
DUP MOTOR ASSY  
(FORWARD NORMAL  
SPEED)  
WARNING!<CAUTION!>  
Check by hearing and visually that  
the motor rotates in normal mode.  
WARNING!<CAUTION!>  
DUP MOTOR ASSY  
(FORWARD HALF SPEED)  
Check by hearing and visually that  
the motor rotates clockwise in half-  
speed mode.  
DO-4  
DO-5  
DO-6  
2.9.5  
2.9.5  
2.9.5  
2.9.5  
DUP MOTOR ASSY  
(FORWARD DOUBLE  
SPEED)  
WARNING!<CAUTION!>  
Check by hearing and visually that  
the motor rotates clockwise in  
double-speed mode.  
DUP MOTOR ASSY  
(REVERSE NORMAL  
SPEED)  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates counterclockwise  
in normal mode.  
DUP MOTOR ASSY  
(REVERSE HALF SPEED)  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates counterclockwise  
in half-speed mode.  
DO-7  
DO-8  
DUP MOTOR ASSY  
(REVERSE DOUBLE  
SPEED)  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates counterclockwise  
in double-speed mode.  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates in normal mode.  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates in half-speed  
mode.  
2.9.5  
2.8.2  
2.8.2  
DEVE DRIVE ASSY  
DO-a (NORMAL SPEED)  
DEVE DRIVE ASSY  
(HALF SPEED)  
DO-b  
FUSER DRIVE ASSY  
<WARNING!> <CAUTION!>  
(NORMAL SPEED)  
DO-d  
DO-e  
Check by hearing and visually that  
the motor rotates in normal mode.  
2.9.2  
2.9.2  
FUSER DRIVE ASSY  
(HALF SPEED)  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates in half-speed  
mode.  
FEEDER DRIVE ASSY  
DO-10 (NORMAL SPEED)  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates in normal mode.  
<WARNING!> <CAUTION!>  
Check by hearing and visually that  
the motor rotates in half-speed  
mode.  
2.7.5  
2.7.5  
FEEDER DRIVE ASSY  
(HALF SPEED)  
DO-11  
V-47  
Menu  
No.  
Reference  
BSD  
Part/signal name  
Test method  
FAN  
(HIGH SPEED)  
FAN  
(LOW SPEED)  
TONER MOTOR (Y)  
Check by hearing and visually that  
the fan rotates in high-speed mode.  
Check by hearing and visually that  
the fan rotates in low-speed mode.  
Check by hearing and visually that  
the motor rotates.  
DO-13  
DO-14  
DO-18  
DO-1a  
2.9.3  
2.9.3  
2.8.4  
2.8.4  
TONER MOTOR (M)  
TONER MOTOR (C)  
TONER MOTOR (K)  
REGI CLUTCH  
Check by hearing and visually that  
the motor rotates.  
Check by hearing and visually that  
the motor rotates.  
DO-1c  
DO-1e  
DO-20  
DO-22  
DO-24  
DO-26  
DO-28  
2.8.4  
2.8.4  
2.7.6  
2.7.2  
2.7.2  
2.7.1  
2.7.1  
Check by hearing and visually that  
the motor rotates.  
Check by hearing that the clutch  
operates.  
MSI TURN CLUTCH  
MSI FEED SOLENOID  
Check by hearing that the clutch  
operates.  
Check by hearing that the solenoid  
operates.  
TRAY1 TURN CLUTCH  
ASSY  
Check by hearing that the clutch  
operates.  
TRAY1 FEED SOLENOID  
Check by hearing that the solenoid  
operates.  
DO-30 HTC ON  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
<WARNING!> <CAUTION!>  
2.8.1  
2.8.2  
2.8.2  
2.8.2  
2.8.2  
2.8.2  
2.8.6  
2.8.6  
2.8.6  
2.8.6  
2.8.6  
2.8.6  
DO-32 DEVE BIAS AC ON  
DO-34 DEVE BIAS DC Y ON  
DO-36 DEVE BIAS DC M ON  
DO-38 DEVE BIAS DC C ON  
DO-3a DEVE BIAS DC K ON  
DO-3c IDT1 PLUS ON  
DO-3e IDT1 MINUS ON  
DO-40 IDT2 PLUS ON  
DO-42 IDT2 MINUS ON  
DO-44 IDT1 CLEANER ON  
DO-46 IDT2 CLEANER ON  
TRANSFER ROLL  
DO-48  
2.8.6  
CARTRIDGE PLUS ON  
TRANSFER ROLL  
DO-4a  
<WARNING!> <CAUTION!>  
2.8.6  
2.8.6  
2.7.3  
CARTRIDGE MINUS ON  
DO-4c DTS ON  
<WARNING!> <CAUTION!>  
TRAY2 TURN CLUTCH  
Check by hearing that the clutch  
operates.  
DO-50  
ASSY  
TRAY2 FEED SOLENOID  
DO-52  
Check by hearing that the solenoid  
operates.  
2.7.3  
2.7.4  
2.7.4  
TRAY3 TURN CLUTCH  
Check by hearing that the clutch  
operates.  
DO-54  
ASSY  
TRAY3 FEED SOLENOID  
DO-56  
Check by hearing that the solenoid  
operates.  
V-48  
WARNING  
Never touch a high-voltage or live section during high-voltage output.  
Never touch a drive section during driving.  
Output a laser beam with all the covers attached.  
CAUTION  
To avoid damage, do not keep the laser ON for a long time.  
(Turn it to OFF within several seconds.)  
4.8.3 NVM Edit  
Refer to Section 6. NVM LIST.  
Function: Reading or writing NVM  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [IOT Diag] with the  
and  
buttons and press the Form Feed/Set button.  
and buttons and press the Form Feed/Set  
3. Go advance to [NVM Edit] with  
button.  
4. Select a necessary item for the address section (Ad) with the  
and  
buttons.  
The NWM data is read and two to four items are displayed from the input address.  
Edit NVM  
Ad0001=00000000*  
Cursor  
Press the  
or  
button to moves the cursor to the left or right.  
5. Change the numeric value at the desired data section with the  
buttons.  
Edit NVM  
Ad0001=c6d0d6d0  
If the data section is changed, the * mark disappears to indicate that the current  
NVM value has changed.  
6. Press the Form Feed/Set button to write the NVM value.  
Reference:  
Display example of address 01fa  
Edit NVM  
Ad01fa 14 1e fc 21  
V-49  
4.8.4 NVM Save  
Function: Saving information from the MCU NVM evacuate list into ESS NVM  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [IOT Diag] with the  
and  
buttons and press the Form Feed/Set button.  
and buttons and press the Feed/Set  
Go advance to [NVM Save] with the  
button to display the Confirm Initialize screen.  
NVM Save  
OK?  
Press the Job Cancel/Back button to cancel.  
3. When the Form Feed/Set button is pressed, the NVM information is saved and the  
following screen is displayed:  
NVM Save  
Saved  
4.8.5 NVM Load  
Function: Loading ESS-saved MCU NVM information into MCU  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [IOT Diag] with the  
and  
buttons and press the Form Feed/Set button.  
and buttons and press the Form  
Go advance to [NVM Load] with the  
Feed/Set button to display the Confirm Initialize screen.  
NVM Load  
OK?  
Press the Job Cancel/Back button to cancel.  
3. When the Form Feed/Set button is pressed, the NVM information is loaded and the  
following screen is displayed:  
NVM Load  
Loaded  
4.8.6 NVM Print Info  
Function: Printing MCU NVM information saved in ESS  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [IOT Diag] with the  
and  
buttons and press the Form Feed/Set button.  
and buttons and press the Form  
3. Go acvance to [NVM Print Info] with the  
Feed/Set button.  
V-50  
4.9  
Installation Setting  
Function: Setting parameters at printer installation and displaying various counter values  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance Installation Set] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to setting/display item selection in [CE  
Maintenance Installation Set].  
4. Select a setting/display item with the  
items, refer to the table below.)  
and  
buttons. (For the setting/display  
5. Press the Form Feed/Set button to display the setting/display item.  
Setting/display items  
Item  
Serial No.  
Range  
10 digits  
ON, OFF  
Description  
Sets a serial number.  
Count Display  
Sets whether to display the billing counter.  
Change the Dip Switch setting on NVM.  
Configuration (*1)  
Col print Count  
B/W Print Count  
Displays the current value of the color print counter.  
Displays the current value of the monochrome print  
counter.  
Tot Print Count  
Displays the current value of the total print counter.  
Displays the current value of the backup color counter.  
Backup Col Count  
Backup B/W Count  
Displays the current value of the backup monochrome  
counter.  
Backup Tot Count  
Col Error Count  
Displays the current value of the backup total counter.  
Displays the current value of the color print error  
counter.  
B/W Error Count  
Displays the current value of the monochrome print  
error counter.  
PrnCounter Reset  
Count copy M to B  
NVM Init  
Initializes three counter values (clears to zero).  
Copies from a normal meter to a backup file.  
Initializes NVM  
Job Log Init  
Initializes Job Log  
*1 Dip Switch 0  
For service engineer  
Bit  
Function  
Description  
0=OFF  
1=ON  
0
Hex Dump mode  
0=OFF  
1
2
EEPROM Clear  
Not Used  
1=ON  
Clear all history except Network.  
7
Dip Switch 1: For debug  
Dip Switch 2: For debug  
Dip Switch 3: Not Used  
V-51  
*Electronic billing meter (count) function and backup  
The monochrome and color meters have backup meters.  
The printer compares the main and backup meters when the power is turned ON.  
If there is a discrepancy between the main and backup meters, the hardware of both  
meters is diagnosed by read/write tests.  
1. If either or both meters are abnormal, a fatal error (C/E call) is assumed.  
The C/E replaces ESS-PWB.  
2. If both diagnostic results are correct, the main meter is believed.  
The main meter is copied to the backup meter for matching.  
Then the mismatching is counted as an abnormality recovered automatically as a  
non-critical error.  
ESS PWB  
U8  
U9  
Fig.5-6  
4.10 Test Print  
Function: Printing an internal test pattern of the printer  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance Test Print] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to diagnostic item selection in [CE  
Maintenance Test Print].  
4. Select a test print pattern with the  
and  
buttons.  
(For the test print patterns, refer to the table below.)  
5. Press the Form Feed/Set button to determine the test print pattern.  
6. Press the Form Feed/Set button again to execute test printing.  
(The LCD panel displays [Processing].)  
7. After outputting the test print, the printer becomes Ready to Print state.  
(The LCD panel displays [Ready].)  
Test print patterns  
Item  
Description  
Feeds and outputs paper with no image.  
Outputs an ESS internal grid pattern.  
Outputs an IOT internal 600-dpi pattern.  
Blank paper (MCU: No Support)  
No Image [IOT]  
Grid2 [ESS]  
H Patt 600 [IOT]  
H Patt 1200 [IOT]  
Cyan 20% [ESS]  
Magenta20% [ESS]  
Yellow 20% [ESS]  
Black 20% [ESS]  
CMY 20% [ESS]  
Gradation [ESS]  
Outputs an A4 solid pattern of 20% cyan.  
Outputs an A4 solid pattern of 20% magenta.  
Outputs an A4 solid pattern of 20% yellow.  
Outputs an A4 solid pattern of 20% black.  
Outputs an A4 solid pattern of 20% C.M.Y each.  
Outputs 100% to 2% gradation patterns to A4 sheets in four  
colors.  
NIP adjust [ESS]  
PF REGI Adj  
Outputs the NIP adjustment pattern to A4LEF.  
Outputs the Paper feed registration correction chart to A4  
sheets.  
V-52  
4.11 Parameter Setting  
4.11.1 Parameter setting/display  
Function: Setting and displaying parameters held by IOT in NVM  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance Parameter] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to setting/display parameter selection in  
[CE Maintenance Parameter].  
4. Select a setting/display parameter with the  
and  
buttons.  
(For the setting/display parameters, refer to the table below.)  
5. Press the Form Feed/Set button to display the setting/display parameter.  
Example: Scan Regi Tray1 display screen  
Scan Regi Tray1  
4*  
6. Select setting data from the setting range with the  
and  
buttons.  
7. Press the Form Feed/Set button to write the setting data into NVM.  
Example: Post-change screen  
Scan Regi Tray1  
6
8. When displaying and setting each life, have the life item displayed and press the  
Form Feed/Set button.  
Example: Life Fuser display screen  
Life Fuser  
Reading  
9. Press the Form Feed/Set button to display data (decimal).  
Life Fuser  
6666  
Setting/display parameters  
Item  
Range  
Description  
Paper feed direction  
registration adjustment  
Sets the paper feed direction  
registration  
-128127  
Scan direction registration  
adjustment  
Sets the scan direction registration of  
Main, Aux 1, Aux 2, MSI, and Dup.  
-128127  
Life counter  
Reads and initializes the fuser and  
printer life counters.  
V-53  
4.11.2 Parameter list print  
Function: Outputting a list of setting and displaying parameters held by IOT in NVM  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance Parameter] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to setting/display parameter selection in  
[CE Maintenance Parameter].  
4. Select [Parameter Print] with the  
and  
buttons.  
5. Press the Form Feed/Set button to determine the selection.  
6. Press the Form Feed/Set button again to print the parameters.  
HL-4000CN  
MCU Parameter List  
Serial No. 00000  
Registration Adjust Slow Scan Paper from Black :  
0
Registration Adjust Slow Scan, 600dpi, Magenta from Black  
:
6
Yellow from Black :  
Cyan from Black  
4
1
:
Registration Adjust Slow Scan, 1200dpi,  
Magenta from Black  
:
11  
Yellow from Black :  
Cyan from Black  
9
1
:
Registration Adjust Fast Scan,  
Magenta from Black  
:
1
Yellow from Black  
Cyan from Black  
:
:
3
3
Life Counters Yellow Toner Dispense Time  
Magenta Toner Dispense Time  
Cyan Toner Dispense Time  
:
:
:
:
645  
700  
802  
648  
:
Black Toner Dispense Time  
TRANSFER ROLL CARTRIDGE1 Sheets  
373  
:
TRANSFER ROLL CARTRIDGE2 Dispense Time  
3041  
Printer Sheets  
Printer Head Sheets  
Printer Head Time  
Printer Head Yellow Dispense  
Printer Head Magenta Dispense  
:
:
:
:
:
373  
369  
8183  
645  
782  
V-54  
4.12 Information Print  
Function: Printing printer information  
Operation procedure:  
1. Enter the Diag. (C/E) mode.  
2. Select [CE Maintenance Print info] with the  
and  
buttons.  
3. Press the Form Feed/Set button to advance to print item selection in [CE  
Maintenance Print info].  
4. Select a print item with the  
and  
buttons.  
5. Press the Form Feed/Set button to determine the selection.  
6. Press the Form Feed/Set button again to print the parameters.  
Print items  
Item  
Config page  
Print Settings  
Description  
Outputs printer configuration information.  
Outputs setting information from the control panel.  
HL-4000CN  
MCU Config page  
Serial No. 00000  
Optional Products Status  
:
Auxiliary Cassette  
ROM Revision NO  
Machine Revision  
:
:
V 0.75.0  
V 0.75.19  
<Setting print sample>  
HL-4000CN  
DIAG Settings Page  
Serial No. 00000  
Serial No.  
Counter Display Switch  
Color Print Counter  
B/W Print Counter  
Total Print Counter  
Backup Color Print Counter  
Backup B/W Print Counter  
Backup Total Print Counter  
Color Print Error Counter  
B/W Print Error Counter  
: 000000  
:
OFF  
: 246  
: 111  
: 357  
: 246  
: 111  
: 357  
: 0  
: 0  
V-55  
5.  
DIAGNOSIS FOR STANDALONE PRINTER  
5.1  
General  
The test print can be taken place on the standalone printer for operation check.  
For this purpose, the test print pattern stored in the printer is printed continuously at the  
continuous printing speed.  
5.2  
Printing Method  
1. Load paper, and turn the power ON.  
WARNING  
In the following steps, never touch the live parts and driving parts.  
2. Short two pins of the test print connector (P31) on the MCU AND HVPS PWB.  
Reference:  
To short two pins, make the screwdriver tip touch the two pins.  
3. The printer transits to the READY mode, and starts the printing. (Printing is carried  
out continuously in the Duplex mode).  
4. To stop the printing, remove the screwdriver to release the short of two pins.  
Note:  
The paper is fed from the tray 1, and if no paper is loaded in the tray 1, printing is  
not carried out.  
Reference:  
Printing will not start, if the printer is in an error status.  
P14  
P31  
2Pin  
1Pin  
Fig.5-7  
V-56  
5.3  
Test Print Pattern  
The test print pattern is lattice patterns composed of black (K), cyan (C), magenta (M),  
and yellow (Y) patterns in this order every 128 dots in vertical and horizontal directions.  
Black  
K
Yellow  
Cyan  
Y
C
Magenta  
M
128dot  
Approx.2mm  
128dot  
Approx.2mm  
Fig.5-8  
V-57  
6.  
NVM LIST  
CAUTION  
Never write the data to the NVM numbers not listed below, as they are for the system  
areas of the printer.  
CAUTION  
Never write the data to the items which address field is hatched, as they are read only.  
12. System, Paper  
Address  
Set value  
Description  
Higher Lower  
Hex  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
Dec  
0
Word/Long  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
0
1
2
3
4
5
6
7
8
9
Lead regi. between paper and K(0.17mm)  
Lead regi. 600dpi between M and K (line)  
Lead regi. 600dpi between Y and K (line)  
Lead regi. 600dpi between C and K (line)  
Lead regi. 1200dpi between M and K (line)  
Lead regi. 1200dpi between Y and K (line)  
Lead regi. 1200dpi between C and K (line)  
Side regi. between M and K  
0
0
0
0
0
0
0
0
Side regi. between Y and K  
0
Side regi. between C and K  
Side regi. between paper and K MSI  
(0.17mm)  
12  
12  
12  
12  
12  
A
B
C
D
E
00  
FB  
FB  
FB  
00  
0
Side regi. between paper and K TRAY1  
(0.17mm)  
251  
251  
251  
0
Side regi. between paper and K TRAY2  
(0.17mm)  
Side regi. between paper and K TRAY3  
(0.17mm)  
Side regi. between paper and K Duplex  
(0.17mm)  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
1A  
1B  
1C  
1D  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Dispensed time Y (L)  
Dispensed time Y (H)  
Dispensed time M (L)  
Dispensed time M (H)  
Dispensed time C (L)  
Dispensed time C (H)  
Dispensed time K (L)  
Dispensed time K (H)  
Transfer roll cartridge PV (L)  
Transfer roll cartridge PV (M)  
Transfer roll cartridge PV (H)  
Transfer roll cartridge rotate time (L)  
Transfer roll cartridge rotate time (M)  
Transfer roll cartridge rotate time (H)  
0
V-58  
Address  
Set value  
Description  
Higher Lower  
Hex  
00  
00  
00  
00  
00  
00  
Dec  
0
Word/Long  
12  
12  
12  
12  
12  
12  
1E  
1F  
20  
21  
22  
23  
0
Fuser PV (L)  
Fuser PV (M)  
Fuser PV (H)  
M/C PV (L)  
0
0
0
0
0
M/C PV (M)  
M/C PV (H)  
0
Environmental temperature at the previous  
regi. control  
12  
24  
00  
0
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
2A  
2D  
2E  
2F  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
3A  
3B  
3C  
3D  
3E  
3F  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
4A  
4C  
4D  
4E  
4F  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
80  
38  
01  
D4  
17  
D4  
17  
D4  
17  
C2  
1A  
50  
46  
00  
FF  
FF  
FF  
A0  
86  
01  
30  
75  
00  
5D  
0
0
Number of impressions after regi. control  
Total impressions (for pro. control)  
Counter for long cleaning (L)  
0
0
Counter for long cleaning (H)  
0
Transfer roll cartridge full detected PV1 (L)  
Transfer roll cartridge full detected PV1 (H)  
Transfer roll cartridge full detected PV2 (L)  
Transfer roll cartridge full detected PV2 (H)  
Transfer roll cartridge full detected DISP (L)  
Transfer roll cartridge full detected DISP (H)  
FUSER final print temperature  
Fuser PV WARNING (L)  
0
0
0
0
0
0
128  
56  
1
80000  
Fuser PV WARNING (M)  
Fuser PV WARNING (H)  
212  
23  
212  
23  
212  
23  
194  
26  
80  
70  
0
6100  
6100  
6100  
6850  
18000  
Dispensed time Y LIMIT (L)  
Dispensed time Y LIMIT (H)  
Dispensed time M LIMIT (L)  
Dispensed time M LIMIT (H)  
Dispensed time C LIMIT (L)  
Dispensed time C LIMIT (H)  
Dispensed time K LIMIT (L)  
Dispensed time K LIMIT (H)  
Transfer roll cartridge PV LIMIT (L)  
Transfer roll cartridge PV LIMIT (M)  
Transfer roll cartridge PV LIMIT (H)  
255  
255  
255  
160  
134  
1
16777215 Transfer roll cartridge rotate time LIMIT (L)  
Transfer roll cartridge rotate time LIMIT (M)  
Transfer roll cartridge rotate time LIMIT (H)  
100000  
Fuser PV LIMIT (L)  
Fuser PV LIMIT (M)  
Fuser PV LIMIT (H)  
48  
117  
0
30000  
PV CRUM LIMIT (L)  
PV CRUM LIMIT (M)  
PV CRUM LIMIT (H)  
Motor rotate time CRUM LIMIT (L)  
93  
361821  
V-59  
Address  
Set value  
Description  
Higher Lower  
Hex  
85  
05  
50  
40  
01  
50  
40  
01  
50  
40  
01  
40  
7D  
01  
C0  
5D  
00  
B1  
6A  
04  
40  
00  
01  
40  
00  
01  
40  
00  
01  
00  
31  
01  
00  
00  
Dec  
133  
5
Word/Long  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
5A  
5B  
5C  
5D  
5E  
5F  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
6A  
6B  
6C  
6D  
6E  
6F  
FA  
FB  
Motor rotate time CRUM LIMIT (M)  
Motor rotate time CRUM LIMIT (H)  
Dispensed time Y CRUM LIMIT (L)  
Dispensed time Y CRUM LIMIT (M)  
Dispensed time Y CRUM LIMIT (H)  
Dispensed time M CRUM LIMIT (L)  
Dispensed time M CRUM LIMIT (M)  
Dispensed time M CRUM LIMIT (H  
Dispensed time C CRUM LIMIT (L)  
Dispensed time C CRUM LIMIT (M)  
Dispensed time C CRUM LIMIT (H)  
Dispensed time K CRUM LIMIT (L)  
Dispensed time K CRUM LIMIT (M)  
Dispensed time K CRUM LIMIT (H)  
PV CRUM WARNING (L)  
80  
64  
1
82000  
82000  
82000  
97600  
24000  
289457  
65600  
65600  
65600  
78080  
80  
64  
1
80  
64  
1
64  
125  
1
192  
93  
0
PV CRUM WARNING (M)  
PV CRUM WARNING (H)  
177  
106  
4
Motor rotate time CRUM WARNING (L)  
Motor rotate time CRUM WARNING (M)  
Motor rotate time CRUM WARNING (H)  
Dispensed time Y CRUM WARNING (L)  
Dispensed time Y CRUM WARNING (M)  
Dispensed time Y CRUM WARNING (H)  
Dispensed time M CRUM WARNING (L)  
Dispensed time M CRUM WARNING (M)  
Dispensed time M CRUM WARNING (H)  
Dispensed time C CRUM WARNING (L)  
Dispensed time C CRUM WARNING (M)  
Dispensed time C CRUM WARNING (M)  
Dispensed time K CRUM WARNING (L)  
Dispensed time K CRUM WARNING (M)  
Dispensed time K CRUM WARNING (H)  
U2 details  
64  
0
1
64  
0
1
64  
0
1
0
49  
1
0
0
U6 details  
V-60  
14. Marking Adjust  
Address  
Set value  
Hex Dec  
00  
Description  
Higher Lower  
Plain paper-L  
Thick paper-L  
Heavier paper-L  
Heavier paper-H  
Envelope  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
0
1
0
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
05  
05  
05  
05  
05  
F9  
FA  
FB  
FC  
FE  
00  
02  
04  
05  
06  
07  
F1  
F4  
0
0
4
5
0
6
0
Postcard  
7
0
Transparency  
Label-H  
8
0
9
0
Plain paper-L High Gloss  
Thick paper-L High Gloss  
Label-L  
A
0
B
0
C
0
Heavier paper-L BackFace  
Heavier paper-H BackFace  
Envelope BackFace  
E
0
F
0
10  
11  
12  
13  
14  
15  
1B  
1C  
1D  
1E  
1F  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
2A  
2B  
2C  
0
Postcard BackFace  
0
Plain paper-H  
0
Thick paper-H  
0
Plain paper-H High Gloss  
Thick paper-H High Gloss  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Density adjustment  
0
0
5
Y
5
M
5
C
5
K
5
YMCK  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Color balance adjustment  
Density adjustment (Vdc)  
Density adjustment (Vdc)  
249  
250  
251  
252  
254  
0
0
1
2
3
4
5
2
6
4
7
5
8
6
9
7
10  
0
241  
244  
1
V-61  
Address  
Set value  
Hex Dec  
Description  
Density adjustment (Vdc)  
Higher Lower  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
2D  
2E  
2F  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
3A  
3B  
3C  
3D  
3E  
3F  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
4A  
4B  
4C  
4D  
4E  
4F  
50  
51  
F7  
FA  
FD  
00  
03  
06  
09  
0C  
0F  
FB  
FC  
FD  
FE  
FF  
00  
01  
02  
03  
04  
05  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
247  
250  
253  
0
2
3
4
5
6
7
8
9
10  
0
1
2
3
4
5
6
7
8
9
10  
0
1
2
3
4
5
6
7
8
9
10  
0
1
2
3
4
5
Density adjustment (Vdc)  
Density adjustment (Vdc)  
Density adjustment (Vdc)  
Density adjustment (Vdc)  
3
Density adjustment (Vdc)  
6
Density adjustment (Vdc)  
9
Density adjustment (Vdc)  
12  
15  
251  
252  
253  
254  
255  
0
Density adjustment (Vdc)  
Density adjustment (Vcf)  
Density adjustment (Vcf)  
Density adjustment (Vcf)  
Density adjustment (Vcf)  
Density adjustment (Vcf)  
Density adjustment (Vcf)  
Density adjustment (Vcf)  
1
Density adjustment (Vcf)  
2
Density adjustment (Vcf)  
3
Density adjustment (Vcf)  
4
Density adjustment (Vcf)  
5
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th Y)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
V-62  
Address  
Set value  
Hex Dec  
00  
Description  
Higher Lower  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th M)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th C)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Density adjustment (PCDC_Th K)  
Plain paper-L  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
14  
52  
53  
54  
55  
56  
57  
58  
59  
5A  
5B  
5C  
5D  
5E  
5F  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
6A  
6B  
6C  
80  
81  
84  
85  
86  
87  
88  
89  
8A  
8B  
0
6
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
8
9
10  
0
1
2
3
4
5
6
7
8
9
10  
0
1
2
3
4
5
6
7
8
9
10  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Thick paper-L  
Heavier paper-L  
Heavier paper-H  
Envelope  
Postcard  
Transparency  
Label-H  
Plain paper-L High Gloss  
Thick paper-L High Gloss  
V-63  
Address  
Set value  
Hex Dec  
00  
Description  
Higher Lower  
Label-L  
14  
14  
14  
14  
14  
14  
14  
14  
14  
8C  
8E  
8F  
90  
91  
92  
93  
94  
95  
0
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Coated  
Heavier paper-L BackFace  
Heavier paper-H BackFace  
Envelope BackFace  
Postcard BackFace  
00  
00  
00  
00  
00  
00  
00  
00  
0
0
0
0
0
0
0
0
Plain paper-H  
Thick paper-H  
Plain paper-H High Gloss  
Thick paper-H High Gloss  
15. User  
Address  
Higher Lower  
Set value  
Hex Dec  
00  
Description  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
0
1
2
3
4
5
6
7
8
9
A
B
C
D
0
UserData1  
UserData2  
UserData3  
UserData4  
UserData5  
UserData6  
UserData7  
UserData8  
UserData9  
UserData10  
UserData11  
UserData12  
UserData13  
UserData14  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
00  
0
0
0
0
0
0
0
0
0
0
0
0
0
18. Cleaner (1)  
Address  
Set value  
Hex Dec  
30 48  
Description  
Higher Lower  
18  
18  
18  
18  
18  
18  
18  
50  
51  
52  
53  
54  
55  
56  
Cleaning interval 0  
Cleaning interval 1  
Cleaning interval 2  
Cleaning interval 3  
Cleaning interval 4  
Cleaning interval 5  
Cleaning interval 6  
0
4095  
20  
20  
20  
14  
10  
10  
32  
32  
32  
20  
16  
16  
4096  
8192  
12288  
16384  
20480  
24576  
8191  
12287  
16383  
20479  
24575  
V-64  
25. Fuser (1)  
Address  
Set value  
Description  
Higher  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
25  
Lower  
2A  
2B  
2C  
2D  
2E  
2F  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
3A  
3B  
3C  
3D  
3E  
3F  
40  
41  
Hex Dec  
Temperature table Plain Paper Low Large (00)  
Temperature table Plain Paper Low Middle (01)  
Temperature table Plain Paper Low Small (10)  
Temperature table Plain Paper High Large (00)  
Temperature table Plain Paper High Middle (01)  
Temperature table Plain Paper High Small (10)  
Temperature table Bond Paper Low Large (00)  
Temperature table Bond Paper Low Middle (01)  
Temperature table Bond Paper Low Small (10)  
16  
1E  
26  
18  
20  
28  
1A  
22  
2A  
1C  
24  
2C  
2E  
36  
3E  
30  
38  
40  
32  
3A  
42  
34  
3C  
44  
22  
30  
38  
24  
32  
40  
26  
34  
42  
28  
36  
44  
46  
54  
62  
48  
56  
64  
50  
58  
66  
52  
60  
68  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Full speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Bond Paper High  
Bond Paper High  
Bond Paper High  
Temperature table  
Temperature table  
Temperature table  
Large (00)  
Middle (01)  
Small (10)  
Temperature table Plain Paper Low Large (00)  
Temperature table Plain Paper Low Middle (01)  
Temperature table Plain Paper Low Small (10)  
Temperature table Plain Paper High Large (00)  
Temperature table Plain Paper High Middle (01)  
Temperature table Plain Paper High Small (10)  
Temperature table Bond Paper Low Large (00)  
Temperature table Bond Paper Low Middle (01)  
Temperature table Bond Paper Low Small (10)  
Bond Paper High  
Bond Paper High  
Bond Paper High  
Temperature table  
Temperature table  
Temperature table  
Large (00)  
Middle (01)  
Small (10)  
Large (00)  
Temperature table Labels 1  
(domestic)  
25  
25  
25  
25  
25  
25  
25  
25  
42  
43  
44  
45  
46  
47  
48  
49  
46  
5C  
5E  
48  
3A  
42  
4A  
4C  
70  
92  
94  
72  
58  
66  
74  
76  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Half speed  
Temperature table Labels 1  
(domestic)  
Middle (01)  
Small (10)  
Large (00)  
Middle (01)  
Small (10)  
Large (00)  
Middle (01)  
Temperature table Labels 1  
(domestic)  
Temperature table Labels 2  
(foreign)  
Temperature table Labels 2  
(foreign)  
Temperature table Labels 2  
(foreign)  
Temperature table Thick paper 1  
(Low weight)  
Temperature table Thick paper 1  
(Low weight)  
V-65  
Address  
Set value  
Description  
Temperature table Thick paper 1  
Higher  
Lower  
Hex Dec  
Small (10)  
Large (00)  
Middle (01)  
Small (10)  
25  
25  
25  
25  
4A  
4E  
50  
52  
54  
78  
80  
82  
84  
Half speed  
Half speed  
Half speed  
Half speed  
(Low weight)  
Temperature table Thick paper 2  
(Heavy weight)  
4B  
4C  
4D  
Temperature table Thick paper 2  
(Heavy weight)  
Temperature table Thick paper 2  
(Heavy weight)  
Temperature table Transparencies  
Temperature table Envelope  
Temperature table Postcards  
25  
25  
25  
4E  
4F  
50  
56  
58  
5A  
86  
88  
90  
00  
00  
00  
Half speed  
Half speed  
Half speed  
25. Fuser (3)  
Address  
Set value  
Description  
Higher  
Lower  
Hex Dec  
U4 previous U4  
27  
49  
00  
00  
0
0
0
0
0
0
0
0
U4 one more previous U4  
27  
4A  
V-66  
7.  
HEX/DEC CONVERSION TABLE  
Decimal  
1
Decimal  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
92  
93  
94  
95  
96  
97  
98  
99  
100  
101  
102  
103  
104  
Decimal  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
127  
128  
129  
130  
131  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
143  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
154  
155  
156  
Decimal  
157  
158  
159  
160  
161  
162  
163  
164  
165  
166  
167  
168  
169  
170  
171  
172  
173  
174  
175  
176  
177  
178  
179  
180  
181  
182  
183  
184  
185  
186  
187  
188  
189  
190  
191  
192  
193  
194  
195  
196  
197  
198  
199  
200  
201  
202  
203  
204  
205  
206  
207  
208  
Decimal  
209  
210  
211  
212  
213  
214  
215  
216  
217  
218  
219  
220  
221  
222  
223  
224  
225  
226  
227  
228  
229  
230  
231  
232  
233  
234  
235  
236  
237  
238  
239  
240  
241  
242  
243  
244  
245  
246  
247  
248  
249  
250  
251  
252  
253  
254  
255  
256  
257  
258  
259  
260  
HEX  
01  
02  
03  
04  
05  
06  
07  
08  
09  
0A  
0B  
0C  
0D  
0E  
0F  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
1A  
1B  
1C  
1D  
1E  
1F  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
2A  
2B  
2C  
2D  
2E  
2F  
30  
31  
32  
33  
34  
HEX  
35  
36  
37  
38  
39  
3A  
3B  
3C  
3D  
3E  
3F  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
4A  
4B  
4C  
4D  
4E  
4F  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
5A  
5B  
5C  
5D  
5E  
5F  
60  
61  
62  
63  
64  
65  
66  
67  
68  
HEX  
69  
6A  
6B  
6C  
6D  
6E  
6F  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
7A  
7B  
7C  
7D  
7E  
7F  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
8A  
8B  
8C  
8D  
8E  
8F  
90  
91  
92  
93  
94  
95  
96  
97  
98  
99  
9A  
9B  
9C  
HEX  
9D  
9E  
9F  
HEX  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
D8  
D9  
DA  
DB  
DC  
DD  
DE  
DF  
E0  
E1  
E2  
E3  
E4  
E5  
E6  
E7  
E8  
2
3
4
5
6
7
8
9
A0  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
A9  
AA  
AB  
AC  
AD  
AE  
AF  
B0  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
B8  
B9  
BA  
BB  
BC  
BD  
BE  
BF  
C0  
C1  
C2  
C3  
C4  
C5  
C6  
C7  
C8  
C9  
CA  
CB  
CC  
CD  
CE  
CF  
D0  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
E9  
EA  
EB  
EC  
ED  
EE  
EF  
F0  
F1  
F2  
F3  
F4  
F5  
F6  
F7  
F8  
F9  
FA  
FB  
FC  
FD  
FE  
FF  
0100  
0101  
0102  
0103  
0104  
V-67  
Decimal  
261  
262  
263  
264  
265  
266  
267  
268  
269  
270  
271  
272  
273  
274  
275  
276  
277  
278  
279  
280  
281  
282  
283  
284  
285  
286  
287  
288  
289  
290  
291  
292  
293  
294  
295  
296  
Decimal  
297  
298  
299  
300  
301  
302  
303  
304  
305  
306  
307  
308  
309  
310  
311  
312  
313  
314  
315  
316  
317  
318  
319  
320  
321  
322  
323  
324  
325  
326  
327  
328  
329  
330  
331  
332  
Decimal  
333  
334  
335  
336  
337  
338  
339  
340  
341  
342  
343  
344  
345  
346  
347  
348  
349  
350  
351  
352  
353  
354  
355  
356  
357  
358  
359  
360  
361  
362  
363  
364  
365  
366  
367  
368  
Decimal  
369  
370  
371  
372  
373  
374  
375  
376  
377  
378  
379  
380  
381  
382  
383  
384  
385  
386  
387  
388  
389  
390  
391  
392  
393  
394  
395  
396  
397  
398  
399  
400  
401  
402  
403  
404  
Decimal  
405  
406  
407  
408  
409  
410  
411  
412  
413  
414  
415  
416  
417  
418  
419  
420  
421  
422  
423  
424  
425  
426  
427  
428  
429  
430  
431  
432  
433  
434  
435  
436  
437  
438  
439  
440  
HEX  
HEX  
HEX  
HEX  
HEX  
0105  
0106  
0107  
0108  
0109  
010A  
010B  
010C  
010D  
010E  
010F  
0110  
0111  
0112  
0113  
0114  
0115  
0116  
0117  
0118  
0119  
011A  
011B  
011C  
011D  
011E  
011F  
0120  
0121  
0122  
0123  
0124  
0125  
0126  
0127  
0128  
0129  
012A  
012B  
012C  
012D  
012E  
012F  
0130  
0131  
0132  
0133  
0134  
0135  
0136  
0137  
0138  
0139  
013A  
013B  
013C  
013D  
013E  
013F  
0140  
0141  
0142  
0143  
0144  
0145  
0146  
0147  
0148  
0149  
014A  
014B  
014C  
014D  
014E  
014F  
0150  
0151  
0152  
0153  
0154  
0155  
0156  
0157  
0158  
0159  
015A  
015B  
015C  
015D  
015E  
015F  
0160  
0161  
0162  
0163  
0164  
0165  
0166  
0167  
0168  
0169  
016A  
016B  
016C  
016D  
016E  
016F  
0170  
0171  
0172  
0173  
0174  
0175  
0176  
0177  
0178  
0179  
017A  
017B  
017C  
017D  
017E  
017F  
0180  
0181  
0182  
0183  
0184  
0185  
0186  
0187  
0188  
0189  
018A  
018B  
018C  
018D  
018E  
018F  
0190  
0191  
0192  
0193  
0194  
0195  
0196  
0197  
0198  
0199  
019A  
019B  
019C  
019D  
019E  
019F  
01A0  
01A1  
01A2  
01A3  
01A4  
01A5  
01A6  
01A7  
01A8  
01A9  
01AA  
01AB  
01AC  
01AD  
01AE  
01AF  
01B0  
01B1  
01B2  
01B3  
01B4  
01B5  
01B6  
01B7  
01B8  
V-68  
8.  
IMAGE QUALITY TROUBLE ENTRY CHART  
Ask the operator about trouble  
status.  
Print internal test pattern.  
Image quality trouble recurred?  
Check print instructions  
Are print instructions correct?  
Y
N
Y
N
Is trouble more than performance  
when compared with standard  
sample?  
Instruct how to submit  
print job.  
Acknowledged by operator?  
Y
N
Explain to customer.  
Print from another client/application  
for host check.  
Image quality trouble reccurred?  
Y
N
Troubleshoot according  
to image quality trouble  
sample.  
Troubleshoot according  
to image quality trouble  
sample if available  
from customer.  
Any corresponding  
contents in FIP by  
trouble phenomena?  
Y
N
Repair according to  
the FIP concerned.  
Repair according to  
BSD.  
Fig.5-9  
V-69  
9.  
IMAGE QUALITY SPECIFICATIONS  
9.1  
Parallelism  
Fig.5-10  
9.2  
Diagonal  
Fig.5-11  
9.3  
Skew  
Fig.5-12  
V-70  
9.4  
Straightness  
Fig.5-13  
9.5  
Magnification Error  
Fig.5-14  
9.6  
Registration  
Fig.5-15  
V-71  
9.7  
Guaranteed Printing Area  
Fig.5-16  
V-72  
10.  
TEST PRINT  
10.1 Test Print  
Function: Printing an internal test pattern of the printer  
Operation procedure:  
1. While pressing the  
mode.  
and  
buttons together, turn the power on to enter the Diag.  
2. Enter the password.  
(Password: Press the  
button twice and the Form Feed/Set button.)  
and buttons.  
3. Go advance to [Test Print] with the  
4. Press the Form Feed/Set button to advance to diagnostic menu selection in [Test  
Print].  
5. Select a test pattern with the  
and  
buttons.  
(For the contents of the test print patterns, refer to the table below.)  
6. Press the Form Feed/Set button to determine the selection.  
7. Press the Form Feed/Set button again to execute test printing.  
(The LCD panel displays [Processing].)  
8. After outputting the test print, the printer becomes Ready to Print state.  
(The LCD panel displays [Ready to Print].)  
Test Print  
No.  
1
2
Pattern  
No Image [IOT]  
Grid  
Description  
Feeds and outputs paper with no image.  
Blank paper (MCU: No Support)  
3
4
5
6
7
8
9
10  
11  
Grid2 [ESS]  
Outputs an ESS internal grid pattern.  
Outputs an IOT internal 600-dpi pattern.  
Blank paper (MCU: No Support)  
Outputs an A4 solid pattern of 20% cyan.  
Outputs an A4 solid pattern of 20% magenta.  
Outputs an A4 solid pattern of 20% yellow.  
Outputs an A4 solid pattern of 20% black.  
Outputs an A4 solid pattern of 20% C.M.Y each.  
Outputs 100% to 2% gradation patterns to A4  
sheets in four colors.  
H Patt 600[IOT]  
H Patt 1200[IOT]  
Cyan 20% [ESS]  
Magenta20% [ESS]  
Yellow 20% [ESS]  
Black 20% [ESS]  
CMY 20% [ESS]  
Gradation [ESS]  
12  
13  
NIP adjust [A4L]  
P Regi Adj Chart [ESS]  
Outputs the NIP adjustment pattern to A4LEF.  
Outputs the Paper feed registration correction  
chart to A4 sheets.  
V-73  
11.  
IMAGE QUALITY FIP  
11.1 Notes on Image Quality Trouble Check  
Image quality troubles are checked and processed according to the troubleshooting table  
by trouble phenomena. In case of a continuous or abnormal image defect, check the  
installation environment at the customer, the document, and the consumables.  
1. Installation environment  
Prepare a power supply of 100/120/220±10 VAC.  
Do not install the printer at a place of high temperature or humidity (near a water  
tap, water heater, humidifier, heater, air conditioner, or fire) or at a very dusty  
place.  
Do not install the printer where an ammonia gas is generated.  
Do not install the printer under direct sunlight.  
Install the printer at a well-ventilated place.  
Keep the printer horizontal.  
2. Host check for an image quality trouble  
Check whether the trouble depends on the application.  
1) Printing from another client  
2) Printing from another application  
3) Printing from another file  
4) Changing the driver  
5) Changing the application  
6) Checking the client system  
3. Consumables check  
Check the lives of the following consumables:  
1) Print head cartridge  
30K print  
2) Transfer roll cartridge 25K print  
3) Y toner cartridge  
4) M toner cartridge  
5) C toner cartridge  
6) K toner cartridge  
6K print  
6K print  
6K print  
8.5K print  
11.2 Basic Rule of Image Quality Adjustment  
The basic rule of image quality adjustment is to clean each mechanical section.  
Clean the ADC sensor ASSY, paper path, fuser, and transfer roll. Remarkable or quick  
fouling of a mechanical section is often attributable to the installation environment. An  
appropriate remedy is necessary.  
V-74  
11.3 Toubleshooting Table by Trouble Phenomena  
<Fogging>  
Fig.5-17  
Condition:  
Fogging over print. Toner attaches to margin of print.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB, SUB HVPS  
Item Check  
Faulty print head cartridge ASSY  
Remedy  
Replace the print head  
cartridge ASSY  
1
2
3
4
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Faulty scanner ASSY  
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty fuser ASSY  
Check the heat roll and NIP belt for evidence of  
damage, dirt, or foreign substances.  
Faulty transfer roll cartridge ASSY  
Is the image quality improved if transfer roll  
cartridge ASSY is replaced?  
Replace the scanner  
ASSY  
Replace the fuser ASSY  
Replace the transfer roll  
cartridge ASSY  
V-75  
<Streak in the process direction>  
Fig.5-18  
Fig.5-19  
Condition:  
Black or white streaks in the process direction.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB, SUB HVPS  
Item Check  
Faulty print head cartridge ASSY  
Remedy  
Replace the print head  
cartridge ASSY  
1
2
3
4
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Faulty scanner ASSY  
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty fuser ASSY  
Check the heat roll and NIP belt for evidence of  
damage, dirt, or foreign substances.  
Faulty transfer roll cartridge ASSY  
Is the image quality improved if transfer roll  
cartridge ASSY is replaced?  
Replace the scanner  
ASSY  
Replace the fuser ASSY  
Replace the transfer roll  
cartridge ASSY  
V-76  
<Streak in the shaft direction>  
Fig.5-20  
Fig.5-21  
Condition:  
Black or white streaks in the shaft direction.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB, SUB HVPS  
Item Check  
Faulty print head cartridge ASSY  
Remedy  
Replace the print head  
cartridge ASSY  
1
2
3
4
5
6
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Faulty scanner ASSY  
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty fuser ASSY  
Check the heat roll and NIP belt for evidence of  
damage, dirt, or foreign substances.  
Faulty transfer roll cartridge ASSY  
Is the image quality improved if transfer roll  
cartridge ASSY is replaced?  
Check periodicity  
Replace the scanner  
ASSY  
Replace the fuser ASSY  
Replace the transfer roll  
cartridge ASSY  
Replace the parts  
concerned.  
See the table below)  
Replace the ESS PWB  
Periodicity found?  
Faulty ESS PWB  
Is the image quality improved if ESS PWB is  
replaced?  
V-77  
Rolls related with image quality troubles and interval appearing on prints are shown in the  
table below.  
Roll  
Parts  
Cycle  
Magnet roll  
Padolle  
Drum  
HTC  
IDT 1  
29 mm  
7.5 mm  
63 mm  
23 mm  
132 mm  
132 mm  
Print head cartridge ASSY  
IDT 2  
Transfer roll cartridge  
Heat roll  
Transfer roll cartridge ASSY 65 mm  
Fuser ASSY 82 mm  
V-78  
<All black>  
Fig.5-22  
Condition:  
Print is wholly black.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB  
Item Check  
Faulty transfer  
Remedy  
Replace the MCU and  
HVPS PWB  
1
2
3
Is the image quality improved if the laser beam exit  
window of scanner ASSY is shielded with a sheet?  
Faulty scanner ASSY  
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty print head cartridge ASSY  
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Replace the scanner  
ASSY  
Replace the print head  
cartridge ASSY  
V-79  
<All blank>  
Fig.5-23  
Condition:  
Print is wholly white.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB, Toner cartridge  
Item Check  
Remedy  
Toner empty  
Check if the toner cartridge is full with toner.  
Replace the toner  
cartridge  
1
Laser beam path interrupted  
Clean dirt or foreign  
Check the laser beam path between scanner ASSY substances  
and the drum in print head cartridge ASSY for  
evidence of dirt or foreign substances.  
2
Faulty scanner ASSY  
Replace the scanner  
3
4
5
6
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty charging or developing  
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Faulty transfer  
Is the image quality improved if transfer roll  
cartridge is replaced?  
ASSY  
Replace the print head  
cartridge ASSY  
Replace the transfer roll  
cartridge ASSY  
Faulty MCU and HVPS PWB  
Is the image quality improved if MCU and HVPS PW HVPS PWB  
is replaced?  
Replace the MCU and  
V-80  
<Too light image>  
Fig.5-24  
Condition:  
Print is wholly light.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB, SUB HVPS  
Item Check  
Faulty print head cartridge ASSY  
Remedy  
Replace the print head  
cartridge ASSY  
1
2
3
4
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Faulty scanner ASSY  
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty fuser ASSY  
Check the heat roll and NIP belt for evidence of  
damage, dirt, or foreign substances.  
Faulty transfer roll cartridge ASSY  
Is the image quality improved if transfer roll  
cartridge ASSY is replaced?  
Replace the scanner  
ASSY  
Replace the fuser ASSY  
Replace the transfer roll  
cartridge ASSY  
V-81  
<Black (color) points>  
Fig.5-25  
Condition:  
Black (color) circles remain on the print.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Print head cartridge ASSY, Fuser ASSY, Transfer roll cartridge ASSY, Scanner ASSY,  
MCU and HVPS PWB, SUB HVPS  
Item Check  
Faulty print head cartridge ASSY  
Remedy  
Replace the print head  
cartridge ASSY  
1
2
3
4
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Faulty scanner ASSY  
Is the image quality improved if scanner ASSY is  
replaced?  
Faulty fuser ASSY  
Check the heat roll and NIP belt for evidence of  
damage, dirt, or foreign substances.  
Faulty transfer roll cartridge ASSY  
Is the image quality improved if transfer roll  
cartridge ASSY is replaced?  
Replace the scanner  
ASSY  
Replace the fuser ASSY  
Replace the transfer roll  
cartridge ASSY  
V-82  
<Paper skew>  
Fig.5-26  
Condition:  
Image is printed in skewed position.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Paper feeder, Chute ASSY REGI, Chute ASSY out, Transfer roll cartridge ASSY, Print  
head cartridge ASSY, Fuser ASSY, Scanner ASSY  
Item Check  
Faulty paper loading  
Remedy  
Load paper/Set paper  
cassette correctly.  
1
2
3
Check if paper is loaded or paper cassette is set  
correctly.  
Faulty paper transfer path  
Check the paper transfer path for presence of burrs, parts concerned.  
foreign substances or dirt.  
Faulty paper feed rolls  
Clean or replace the  
Clean or replace the  
parts concerned.  
Check if the paper feed rolls feed the paper  
normally.  
Faulty paper transfer rolls  
Clean or replace the  
parts concerned.  
Check the paper transfer rolls for evidence of  
foreign substances, dirt, deformation, or  
malfunction.  
4
Checking scanner ASSY for mounting  
Check if scanner ASSY for mounting  
Faulty print head cartridge ASSY  
Is the image quality improved if print head cartridge  
ASSY is replaced?  
Replace the scanner  
ASSY  
Replace the print head  
cartridge ASSY  
5
6
V-83  
<Crease>  
Condition:  
Print on creased paper.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Paper feeder, Chute ASSY REGI, Chute ASSY out, Transfer roll cartridge ASSY, Print  
head cartridge ASSY, Fuser ASSY  
Item Check  
Wet paper  
Remedy  
Replace paper  
Do the wrinkles disappear if the paper is replaced  
with newly unpacked paper?  
(Ask the customer for  
storing the paper in a dry  
place)  
1
Faulty fuser ASSY  
Replace the fuser ASSY  
2
3
4
Check the heat roll and NIP belt for evidence of  
damage, dirt, or foreign substances.  
Paper skew feed  
Check if the paper is fed on the skew  
Faulty paper transfer path  
Go to Paper skew.  
Clean or replace the  
Check the paper transfer path for presence of burrs, parts concerned.  
foreign substances or dirt.  
Faulty paper transfer rolls  
Clean or replace the  
parts concerned.  
Check the paper transfer rolls for evidence of  
foreign substances, dirt, deformation, or  
malfunction.  
5
<Poor fusing>  
Condition:  
Image is easily peeled off when scrubbed by hand.  
Initial check:  
Parts of different specifications, improper installation, damage, deformation, dirt, foreign  
substance attached, etc.  
Major parts to be checked:  
Fuser ASSY  
Item Check  
Wet paper  
Remedy  
Replace paper  
Do the wrinkles disappear if the paper is replaced  
with newly unpacked paper?  
(Ask the customer for  
storing the paper in a dry  
place)  
1
Faulty fuser ASSY  
Replace the fuser ASSY  
2
Is the image quality improved if print head cartridge  
ASSY is replaced?  
V-84  
CHAPTER VI  
',$*5$06ꢀ  
&217(176ꢀ  
CHAPTER VI DIAGRAMS..............................................................VI-1  
1.PREFACE ......................................................................................................VI-1  
1.1 How to Use the BSD............................................................................................................ VI-1  
1.2 Explanations of Symbols ..................................................................................................... VI-1  
1.3 Signal Name........................................................................................................................ VI-4  
1.4 DC Voltage .......................................................................................................................... VI-4  
1.5 Input/Output Test................................................................................................................. VI-4  
2. BSD (BLOCK SCHEMATIC DIAGRAM)ꢀ  
2.1 Standby Power  
2.1.1 AC power on and DC distribution.............................................................................. VI-5  
2.1.2 Monitoring.................................................................................................................. VI-6  
2.2 Mode Selection  
2.2.1 Control panel............................................................................................................. VI-7  
2.3 Machine Run Control  
2.3.1 Machine self test ....................................................................................................... VI-8  
2.3.2 CRUM and billing ...................................................................................................... VI-9  
2.3.3 Monitoring................................................................................................................ VI-10  
2.4 Start Print Power  
2.4.1 Main drive control.................................................................................................... VI-11  
2.5 OPTICS (Scanner)  
2.5.1 Laser scanning image and control .......................................................................... VI-12  
2.5.2 Monitoring................................................................................................................ VI-13  
2.6 Paper Supplying  
2.6.1 Tray1 paper stacking............................................................................................... VI-14  
2.6.2 Tray2 paper stacking............................................................................................... VI-15  
2.6.3 Tray3 paper stacking............................................................................................... VI-16  
2.6.4 Monitoring................................................................................................................ VI-17  
2.7 Paper Transportation  
2.7.1 Tray1 paper feeding................................................................................................ VI-18  
2.7.2 MSI paper feeding................................................................................................... VI-19  
2.7.3 Tray2 paper feeding................................................................................................ VI-20  
2.7.4 Tray3 paper feeding................................................................................................ VI-21  
2.7.5 Feeder drive control ................................................................................................ VI-22  
2.7.6 Registration............................................................................................................. VI-23  
2.7.7 Monitoring................................................................................................................ VI-24  
2.8 XEROGRAPHICS  
2.8.1 Charging and exposure........................................................................................... VI-25  
2.8.2 Development........................................................................................................... VI-26  
2.8.3 Toner cartridge set.................................................................................................. VI-27  
2.8.4 Toner dispense control............................................................................................ VI-28  
2.8.5 Low toner sensing................................................................................................... VI-29  
2.8.6 Transfer and cleaning ............................................................................................. VI-30  
2.8.7 ADC and environment sensing ............................................................................... VI-31  
2.8.8 Monitoring................................................................................................................ VI-32  
2.9 Fusing and Transportation  
2.9.1 Fusing and fuser heat control.................................................................................. VI-33  
2.9.2 Fuser drive control .................................................................................................. VI-34  
2.9.3 Fan control .............................................................................................................. VI-35  
2.9.4 Exit and invert transportation .................................................................................. VI-36  
2.9.5 Exit and invert mechanism...................................................................................... VI-37  
2.9.6 Monitoring................................................................................................................ VI-38  
CHAPTER VI DIAGRAMS  
1. PREFACE  
1.1 How to Use the BSD  
1. Enter the chain specified in the chapter of troubleshooting.  
2. Or enter the corresponding chain by referencing the table of contents.  
3. Analyze the fault in the chain.  
4. Once the fault has been located, advance to the parts index or corresponding  
adjustment by referencing the Parts List number or adjustment number.  
WARNING  
Be sure to main power switch off and unplug the machine before replacing and  
removing parts. Access to a live machine's interior can cause electric shocks.  
1.2 Explanations of Symbols  
This symbol references a note usually on the same  
page.  
1
This symbol references the parts list. PL represents  
Parts List and "7.7" indicates a plate where the  
corresponding part is described. Every replaceable  
PL7.7  
part on the BSD has this symbol.  
References an adjustment in the chapter of Repairs  
and Adjustments. In this example, 7.7.1 means that  
the adjustment method is described in 7.7.1 in the  
7.7.1  
chapter of adjustment.  
Indicates the variable resistor that can be adjusted in  
field.  
VR3  
TP  
Represents a signal test point.  
Represents the source of input to the function. In  
This example, the input source is the group function  
1.3  
of chain 1-3.  
Represents the destination of output from the  
function. In this example, the output destination is  
the group function of chain 6-1.  
6.1  
VI-1  
A
B
Represents a signal line connected vertically.  
Represents a signal line connected horizontally.  
B
A
Indicates that the signal line is connected in the  
same function. In this example, the destination of the  
signal line is described in the zone of E-3.  
ZONE  
E3  
Indicates that the signal line is connected in the  
same function. In this example, the source of the  
signal line is described in the zone of A-4  
ZONE  
E4  
Indicates that the signal line is connected in another  
sheet (described at the lower right of BSD). In this  
example, the destination of the signal line is  
described in the CH8.5 zone of A-2.  
SHEET 5  
ZN A2  
Indicates that the signal line is connected in another  
sheet (described at the lower right of BSD). In this  
example, the source of the signal line is described in  
the CH8.5 zone of H-4.  
SHEET 2  
ZN H4  
Represents the output power line of chain 1.  
+5VDC  
(1.2 J2)  
Indicates that the signal flow is from right to left,  
opposite to the ordinary direction.  
Represents a feedback signal.  
Represents a mechanical link to a part.  
Represents a mechanical drive signal and its flow  
direction.  
VI-2  
Represents a document or paper and its flow  
direction.  
Represents a thermal, optical, or pneumatic signal  
and its flow direction.  
Means that the information indicated by the arrow is  
after 1V.  
1
1
Means that the information indicated by the arrow is  
before 1V.  
Means that the information in the entire figure or  
frame is after 1V.  
1
1
Means that the information in the entire figure or  
frame is before 1V.  
VI-3  
1.3 Signal Name  
Signal Name  
Signal name configuration  
REGI SENSOR  
Part name  
SENSED  
Status  
(L)  
+5VDC  
Logical value  
Voltage at signal level H  
This signal is L when paper is detected at the registration sensor but H (+5 VDC)  
when not.  
1.4 DC Voltage  
Unless otherwise specified in a note or other, the DC voltage is measured between  
each test point and the frame and its value is within the following ranges:  
+5VDC  
(H) +4.5 to +5.3VDC  
(L)  
0.0 to +1.0VDC  
+12VDC (H)  
(L)  
+10.0 to +13.2VDC  
0.0 to +1.5VDC  
+24VDC (H)  
(L)  
+22.0 to +25.7VDC  
0.0 to +3.0VDC  
1.5 Input/Output Test  
DI: Digital input test  
DO: Digital output test  
The DI/DO diagnosis can be executed from the control panel.  
VI-4  
A
B
C
D
E
F
G
H
J
2.1.1 AC power on and DC distribution  
DRIVE PWB  
PL15.1  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
1
DI-7  
INTERLOCK OPEN  
I/L  
SWITCH  
2.1.2  
INTERLOCK OPEN  
SIGNAL  
CONTROL  
LOGIC  
(L)+3.3VDC  
J41  
J11  
LVPS  
35  
6
PL15.1  
HARNESS ASSY AC SW  
PL15.1  
DC COM  
MAIN  
SWITCH  
LOW VOLTAGE  
GENERATION  
DOUBLE  
PLUG  
CONNECTOR  
FEEDER PWB  
PL17.4  
ALL  
ALL  
J161  
BLK  
J163 J60  
J21 P210  
YEL YEL  
J210 P810  
J810 J81  
+24VDC  
1
2
1
2
1
17  
18  
19  
20  
24  
23  
22  
21  
2
B12  
B2  
A12  
B1  
A13  
B2  
A2  
B12  
A1  
25  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
ALL  
ALL  
25  
1
A2  
B13  
A1  
2
26  
1
WHT  
YEL YEL  
YEL YEL  
YEL YEL  
2
A14  
B1  
RETURN  
ALL  
ALL  
ALL  
26  
A13  
B13  
ALL  
ALL  
ESS PWB  
PL16.1  
MCU AND  
HVPS PWB  
PL15.1  
+5VDC  
RETURN  
J165 J61  
1
2
8
7
24  
17  
P/J 14  
CONTROL  
LOGIC  
ZN  
A5  
J23  
2
ALL  
ALL  
ALL  
ALL  
1
+3.3VDC  
RETURN  
3
4
6
5
23  
22  
21  
14  
15  
18  
19  
20  
17  
16  
3
4
B11  
B10  
B3  
B4  
A12  
A11  
A3  
A4  
24  
23  
+3.3VDC  
ALL  
J167  
J42  
J12  
1
2
1
Imaginary Line  
ZN SLEEP MODE  
B3  
DC COM  
2.3.1  
2.3.1  
2.3.1  
2.3.1  
J164  
BRN  
+3.3VDC  
DC COM  
+5VDC  
J311  
BRN  
1
2
3
4
1
2
3
4
VIO  
GRY  
VIO  
VIO  
GRY  
VIO  
DC COM  
2.1 Standby Power  
VI-5  
A
B
C
D
E
F
G
H
J
2.1.2 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
2.1.1  
INTERLOCK OPEN  
SIGNAL  
CONTROL  
LOGIC  
1
Close Front Cover  
1
Imaginary Line  
2.1 Standby Power  
VI-6  
A
B
C
D
E
F
G
H
J
2.2.1 Control panel  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
CONTROL  
LOGIC  
J22  
J221  
J2211  
1 - 20  
1 - 20  
1 - 20  
SHILD  
CABLE  
SHILD  
CABLE  
brother  
NETWORK READY  
HL-4000CN  
Job  
Menu  
Form Feed  
Set  
Cancel  
Ready  
Alarm  
Back  
2.2 Mode Selection  
VI-7  
A
B
C
D
E
F
G
H
J
2.3.1 Machine self test  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
2
2.3.3  
IOT ERROR  
CONTROL  
LOGIC  
ESS PWB  
PL16.1  
S1  
EEPROM  
(U8)  
EEPROM  
(U9)  
1
1
P/J 14  
P/J 1  
RAM slot  
PL16.1  
CONTROL  
LOGIC  
RAM 128MB 50 DIMM  
When replacing ESS  
PWB,remove EEPROM(U8,U9)  
from ESS PWB and install  
them on new ESS PWB.  
P/J 10  
P/J 12  
Pararell  
USB  
P/J 14  
P/J 33  
Font Card  
2.1.1  
2.1.1  
2.1.1  
2.1.1  
+3.3VDC  
J311  
BRN  
1
2
3
4
HDD ASSY  
NIC EXP ASSY  
PL16.1  
PL16.1  
+3.3DC  
DC COM  
+5VDC  
DC COM  
+5VDC  
VIO  
GRY  
VIO  
P/J 34  
P/J 45  
DC COM  
Ethenet 100Base TX / 10BaseT  
DC COM  
2
2.3.3  
ESS ERROR  
2
Imaginary Line  
2.3 Machine Run Control  
VI-8  
A
B
C
D
E
F
G
H
J
2.3.2 CRUM and billing  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
1
2.3.3  
CRUM DATA  
CONTROL  
LOGIC  
BRACKET CONN ASSY  
CONN ASSY BRACKET  
Print head  
cartridge ASSY  
CRUM  
PL12.3  
CRUM MC  
PL12.3  
CRUM MC  
PL12.3  
CRUM  
PL12.3  
DOUBLE  
PLUG  
DI-32  
PL11.1  
CRUM DATA  
J140  
YEL  
P71  
J71  
J710  
YEL  
2
5
4
3
2
1
2
3
4
5
6
5
4
3
2
1
YEL  
YEL  
CRUM CLOCK  
3
4
5
6
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
MCU AND HVPS  
PWB  
PL15.1  
+3.3VDC  
(CH1.1)  
DC COM  
(CH1.1)  
DOUBLE  
PLUG  
2.5.1  
LD +5VDC  
J710  
YEL  
J71  
YEL  
P71  
YEL  
J140  
YEL  
6
1
6
1
+5VDC  
(CH1.1)  
EEPROM PWB  
PL12.1  
CONTROL  
LOGIC  
EEPROM DATA  
J144  
YEL  
7
8
4
3
2
1
YEL  
YEL  
YEL  
YEL  
EEPROM CLOCK  
YEL  
YEL  
YEL  
9
+3.3VDC  
(CH1.1)  
1
Imaginary Line  
10  
DC COM  
(CH1.1)  
2.3 Machine Run Control  
VI-9  
A
B
C
D
E
F
G
H
J
2.3.3 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
NIC Flash ROM Boot Module Checksum  
Error  
NIC RAM R/W Test Error  
IOT Firmware Error  
IOT NVRAM Error  
03-340  
03-356  
10-351  
16-300  
16-301  
16-302  
16-317  
16-310  
16-315  
16-316  
16-323  
16-324  
16-325  
16-326  
16-327  
16-328  
16-330  
16-331  
16-332  
16-333  
16-334  
16-335  
16-336  
16-340  
16-344  
16-345  
16-346  
16-312  
16-313  
16-360  
16-361  
16-314  
16-350  
16-370  
1
2
3
4
5
6
2.3.1  
2.3.1  
CONTROL  
LOGIC  
1
IOT ERROR  
ESS ERROR  
03-340  
03-356  
10-351  
16-300  
16-302  
16-310  
16-316  
16-324  
16-326  
16-328  
16-331  
16-333  
16-335  
16-340  
16-345  
16-312  
16-360  
16-314  
16-370  
NIC Flash ROM Application Module  
Checksum Error  
IOT Fuser Life Over  
NIC MAC Address Checksum Error  
NIC Ethernet BIST parity/RAM R/W Error  
NIC Internal Loopback Error  
ESS Data Cache Error  
ESS Instruction Cache Error  
ESS Illegal Exception  
1
16-301  
16-317  
16-315  
16-323  
16-325  
16-327  
16-330  
16-332  
16-334  
16-336  
16-344  
16-346  
16-313  
16-361  
16-350  
On Board Network Communication Fail  
ESS ROM Check(Main) Fail  
ESS FontROM Error(Main)  
On Board Network MAC Address Checksum  
Error  
On Board Network Ethernet BIST  
parity/RAM R/W Error  
On Board Network Internal Loopback  
Error  
ESS HD Fail  
ESS On-Board RAM W/R Check Fail  
ESS RAM DIMM W/R Check Fail  
ESS NVRAM1 W/R Check Fail  
ESS NVRAM2 W/R Check Fail  
ESS NVRAM3 W/R Check Fail  
ESS NVRAM4 W/R Check Fail  
ESS NVRAM1 ID Check Fail  
ESS NVRAM2 ID Check Fail  
NIC-ESS Communication Fail  
ASIC Fail  
PCI Option#0 Fail>PCI Option 0  
Detection Error  
PCI Option#1 Fail  
Video Sync Fail  
IEEE1284 Data Error  
IOT-ESS Communication Fail  
Sys Data cleared. Press Set  
2.3.1  
1
CRUM DATA  
Set Print Head Cartridge  
Replace Print Head Cartridge  
Print Head Cartridge ID Error  
2.3 Machine Run Control  
1
Imaginary Line  
VI-10  
A
B
C
D
E
F
G
H
J
2.4.1 Main drive control  
MAIN DRIVE ASSY  
PL14.1  
1
2
3
4
5
6
MCU AND HVPS PWB  
PL15.1  
DRIVE PWB  
PL15.1  
DO-0  
DO-1  
(NORMAL SPEED)  
(HALF SPEED)  
CONTROL  
LOGIC  
MOTOR  
DRIVE  
J48  
CLOCK A  
J11  
YEL  
J41  
YEL  
34  
7
3
4
5
6
1
2
CLOCK B  
CLOCK XB  
CLOCK A  
CLOCK XA  
DC COM  
DC COM  
DC COM  
DC COM  
33  
32  
31  
30  
8
CLOCK B  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
9
CLOCK XA  
CLOCK XB  
10  
11  
MOT  
D/A MAIN MOTOR  
YEL  
YEL  
+24VDC  
SWITCHED  
(CH1.1)  
DRIVE MECHANISM  
2.8.7  
IDT2 DRIVE  
REGI  
ROLL DRIVE  
2.7.6  
MSI  
2.7.2  
2.7.2  
FEED DRIVE  
MSI TRANSPORT  
ROLL DRIVE  
TRAY1  
FEED DRIVE  
2.7.1  
2.4 Start Print Power  
VI-11  
2.5 OPTICS(Scanner)  
A
B
C
D
E
F
G
H
J
2.5.1 Laser scanning image and control  
SCANNER ASSY  
PL11.1  
1
2
3
4
5
6
MCU AND HVPS PWB  
PL15.1  
QBLD PWB  
SOS PWB  
QBLD PWB  
MCU AND HVPS PWB  
PL15.1  
VIDEO DATA Y  
J15  
VIO  
J151  
CONTROL  
LOGIC  
LASER  
CONTROL  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
1
2
3
4
5
6
7
8
9
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
J153  
1
3
VIDEO DATA M  
VIDEO DATA C  
VIDEO DATA K  
+3.3VDC  
1
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
VIO  
+5VDC  
CONTROL  
LOGIC  
2.5.2  
SOS SENSED  
SIGNAL  
J153  
J151 SOS SENSED(L)+3.3VDC J15  
2
16  
5
VIO  
VIO  
DC COM  
DC COM  
LASER SCANNER  
Drum(Y)  
Quad Beam  
Laser Diode  
10  
9
Polygon Mirror  
Drum(M)  
Drum(C)  
Drum(K)  
8
2.8.1  
LASER SCAN  
IMAGE  
K
C
M
Y
8
13  
20  
1
DC COM  
(CH1.1)  
7
14  
15  
VIO  
VIO  
VIO  
VIO  
DC COM  
+5VDC  
(CH1.1)  
2.3.2  
LD +5VDC  
6
SCANNER  
MOTOR  
J152  
4
3
17  
18  
1
2
3
4
5
6
7
VIO  
VIO  
VIO  
VIO  
+24VDC  
SWITCHED  
(CH1.1)  
DC COM  
(CH1.1)  
MOT  
CONTROL  
LOGIC  
SCANNER MOTOR ON(L) +5VDC  
VIO VIO  
2
19  
DC COM  
TP  
1
Imaginary Line  
VI-12  
A
B
C
D
E
F
G
H
J
2.5.2 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
IOT Scanner Failure  
2.5.1  
CONTROL  
LOGIC  
6-370  
1
SOS SENSED SIGNAL  
6-370  
1
Imaginary Line  
2.5 OPTICS(Scanner)  
VI-13  
2.6 Paper Supplying  
A
B
C
D
E
F
G
H
J
2.6.1 Tray1 paper stacking  
TRAY1  
2.7.1  
PAPER STACK  
POSITIONED  
TRAY1 SENSOR AND SWITCHES  
A
1
2
3
4
5
6
OPERATOR  
LOADED PAPER  
MCU AND HVPS PWB  
PL15.1  
+3.3VDC  
1
TRAY1 SIZE SWITCH  
ASSY  
PL4.2  
2
DI-18  
TRAY1 SIZE SWITCH1  
ON(L) +3.3VDC  
DRIVE PWB  
PL15.1  
TRAY1  
SIZE SWITCH1  
SIGNEL  
2.6.4  
2.6.4  
2.6.4  
SW1  
SW2  
SW3  
CONTROL  
J471  
YEL  
J47  
YEL  
J42  
YEL  
J12  
YEL  
LOGIC  
4
3
1
1
2
4
16  
17  
18  
15  
2
+3.3VDC  
TRAY1  
SIZE SWITCH2  
SIGNEL  
TRAY1 SIZE SWITCH2  
ON(L) +3.3VDC  
14  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
B
2
+3.3VDC  
TRAY1  
SIZE SWITCH3  
SIGNEL  
TRAY1 SIZE SWITCH3  
ON(L) +3.3VDC  
J471  
YEL  
2
13  
YEL  
2
+3.3VDC  
DI-11  
TRAY1 NO PAPER  
SENSED(H) +3.3VDC  
TRAY1 NO PAPER  
SENSOR  
PL4.3  
TRAY1  
NO PAPAR  
SENSED SIGNEL  
2.6.4  
J472  
BLU  
1
7
19  
12  
DRIVE PWB  
PL15.1  
BLU  
YEL  
YEL  
J47  
YEL  
3
DC COM  
(CH1.1)  
A
J472  
YEL  
3
2
5
6
YEL  
BLU  
+3.3VDC  
(CH1.1)  
2
Imaginary Line  
BLU  
DC COM  
(CH1.1)  
+3.3VDC  
TRAY1 LOW PAPER  
SENSOR  
PL4.3  
DI-15  
TRAY1 LOW PAPER  
SENSED(H) +3.3VDC  
J473  
BLU  
11  
1
10  
20  
BLU  
YEL  
YEL  
B
J473  
YEL  
8
9
3
2
YEL  
YEL  
SW3 Display  
Paper Size  
LEGAL14"  
LEGAL13"  
EXECUTIVE  
B5  
SW1 SW2  
ON ON  
ON ON  
ON OFF  
ON OFF  
OFF ON  
OFF OFF  
OFF ON  
Refer the relationship  
1
between the status of TRAY1  
SIZE SWITCH ASSY and display  
of Diagnostic code "DI-18".  
ON  
OFF  
ON  
OFF  
ON  
00  
01  
02  
03  
04  
06  
+3.3VDC  
(CH1.1)  
YEL  
DC COM  
(CH1.1)  
A4  
LETTER  
A5  
ON  
ON  
07  
No Cassette  
OFF OFF OFF  
VI-14  
A
B
C
D
E
F
G
H
J
2.6.2 Tray2 paper stacking  
TRAY2  
PAPER STACK  
POSITIONED  
2.7.3  
TRAY2 SENSOR AND SWITCHES  
A
1
2
3
4
5
6
OPERATOR  
LOADED PAPER  
MCU AND HVPS PWB  
PL15.1  
1
TRAY2 SIZE SWITCH  
ASSY  
PL17.2  
2
DI-20  
TRAY2  
SIZE SWITCH1  
ON(L) +3.3VDC  
+3.3VDC  
DRIVE  
CONNE  
CTOR  
DOUBLE  
PLUG  
PWB  
TRAY2  
SIZE SWITCH1  
SIGNEL  
PL15.1  
SW1  
CONTROL  
LOGIC  
2.6.4  
2.6.4  
2.6.4  
J821  
GRY  
J82  
J81 J810  
YEL YEL  
P810 J210  
YEL YEL  
P210 J21  
YEL YEL  
1
2
4
11  
12  
13  
B3  
B11  
B12  
B13  
A3  
A11  
A12  
A13  
16  
+3.3VDC  
4
3
1
GRY  
2
TRAY2  
SIZE SWITCH2  
ON(L) +3.3VDC  
TRAY2  
SIZE SWITCH2  
SIGNEL  
SW2  
B2  
B1  
A2  
A1  
15  
GRY  
B
GRY  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
2
+3.3VDC  
TRAY2  
SIZE SWITCH3  
ON(L) +3.3VDC  
TRAY2  
SIZE SWITCH3  
SIGNEL  
SW3  
J821  
GRY  
14  
2
GRY  
GRY  
2
+3.3VDC  
TRAY2  
DI-12  
TRAY2 NO PAPER  
SENSED(H) +3.3VDC  
TRAY2 NO PAPER  
SENSOR  
NO PAPAR  
SENSED  
SIGNEL  
DOUBLE  
PLUG  
DRIVE PWB  
PL15.1  
2.6.4  
PL17.3  
J822 P8220  
J8220  
GRY  
1
3
1
7
16  
A11  
A4  
B11  
B3  
11  
GRY  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
J82  
3
GRY  
DC COM  
(CH1.1)  
DI-34  
TRAY  
MODULE  
SET(H)  
+3.3VDC  
DOUBLE  
PLUG  
+3.3VDC  
A
J8220  
GRY GRY  
P8220J822  
5
6
3
1
3
2
3
B11  
A9  
1
B3  
A6  
A11  
A3  
B5  
24  
+3.3VDC  
(CH1.1)  
YEL YEL  
Imaginary Line  
2
DC COM  
2
2
GRY GRY  
DC COM  
(CH1.1)  
+3.3VDC  
TRAY2 LOW PAPER  
SENSOR  
DI-16  
TRAY2 LOW PAPER  
SENSED(H) +3.3VDC  
PL17.3  
J823  
GRY  
10  
GRY  
18  
B9  
9
1
YEL YEL  
B
J823  
GRY  
8
9
3
2
Paper Size  
LEGAL14"  
LEGAL13"  
EXECUTIVE  
B5  
Display  
00  
GRY  
GRY  
Refer the relationship  
SW1 SW2 SW3  
ON ON ON  
ON ON OFF  
ON OFF ON  
ON OFF OFF  
OFF ON ON  
OFF OFF ON  
OFF ON ON  
OFF OFF OFF  
between the status of TRAY2  
SIZE SWITCH ASSY and display  
of Diagnostic code "DI-20".  
+3.3VDC  
(CH1.1)  
01  
02  
03  
04  
GRY  
DC COM  
(CH1.1)  
A4  
06  
LETTER  
A5  
No Cassette  
2.6 Paper Supplying  
07  
VI-15  
A
B
C
D
E
F
G
H
J
2.6.3 Tray3 paper stacking  
TRAY3  
PAPER STACK 2.7.4  
POSITIONED  
TRAY3 SENSOR AND SWITCHES  
A
1
2
3
4
5
6
OPERATOR  
LOADED PAPER  
MCU AND HVPS PWB  
PL15.1  
1
TRAY3 SIZE SWITCH  
ASSY  
PL17.2  
2
DRIVE  
PWB  
PL15.1  
DI-28  
TRAY3  
SIZE SWITCH1  
ON(L) +3.3VDC  
+3.3VDC  
CONNE  
CTOR  
DOUBLE  
PLUG  
TRAY3  
CONTROL  
LOGIC  
SIZE SWITCH1  
SIGNEL  
2.6.4  
SW1  
SW2  
SW3  
J831  
BLU  
J83  
BLU  
J81 J810  
YEL YEL  
P810 J210  
YEL YEL  
P210 J21  
YEL YEL  
1
2
4
8
9
B6  
B8  
A6  
A8  
19  
+3.3VDC  
4
3
1
2
TRAY3  
SIZE SWITCH2  
ON(L) +3.3VDC  
TRAY3  
SIZE SWITCH2 2.6.4  
SIGNEL  
B5  
B4  
B9  
A5  
A4  
A9  
18  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
BLU  
BLU  
BLU  
YEL YEL  
YEL YEL  
B
2
+3.3VDC  
TRAY3  
SIZE SWITCH3  
ON(L) +3.3VDC  
TRAY3  
SIZE SWITCH3  
SIGNEL  
2.6.4  
2.6.4  
J831  
BLU  
10  
B10  
A10  
B1  
17  
2
BLU  
2
+3.3VDC  
TRAY3  
DI-13  
TRAY3 NO PAPER  
SENSED(H) +3.3VDC  
DOUBLE  
PLUG  
TRAY3 NO PAPER  
SENSOR  
NO PAPAR  
SENSED  
SIGNEL  
DRIVE PWB  
PL15.1  
J832 P8220  
J8220  
BLU  
PL17.3  
1
3
1
7
15  
A12  
A3  
B12  
12  
YEL YEL  
BLU  
YEL YEL  
YEL YEL  
J83  
3
BLU  
DC COM  
(CH1.1)  
DOUBLE  
PLUG  
A
J8220  
P8220J832  
5
6
3
1
3
2
BLU BLU  
+3.3VDC  
(CH1.1)  
2
Imaginary Line  
2
2
BLU BLU  
DC COM  
(CH1.1)  
TRAY3 LOW PAPER  
SENSOR  
+3.3VDC  
DI-17  
TRAY3 LOW PAPER  
SENSED(H) +3.3VDC  
PL17.3  
J833  
GRY  
1
10  
18  
A19  
A5  
B10  
B4  
10  
YEL YEL  
YEL YEL  
GRY  
YEL YEL  
B
J833  
BLU  
8
9
3
2
Paper Size  
LEGAL14"  
LEGAL13"  
EXECUTIVE  
B5  
BLU  
BLU  
Refer the relationship  
SW1 SW2 SW3 Display  
between the status of TRAY3  
1
ON ON ON  
ON ON OFF  
ON OFF ON  
ON OFF OFF  
OFF ON ON  
OFF OFF ON  
OFF ON ON  
OFF OFF OFF  
00  
01  
02  
03  
04  
06  
+3.3VDC  
(CH1.1)  
SIZE SWITCH ASSY and display  
of Diagnostic code "DI-28".  
BLU  
DC COM  
(CH1.1)  
A4  
LETTER  
A5  
No Cassette  
2.6 Paper Supplying  
07  
VI-16  
A
B
C
D
E
F
G
H
J
2.6.4 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
2.6.1  
2.6.1  
2.6.1  
TRAY1  
CONTROL  
LOGIC  
1
SIZE SWITCH1 SIGNEL  
Push in Tray 1  
TRAY1  
SIZE SWITCH2 SIGNEL  
1
1
Check Paper in Tray 1  
TRAY1  
SIZE SWITCH3 SIGNEL  
2.6.2  
2.6.2  
2.6.2  
TRAY2  
SIZE SWITCH1 SIGNEL  
1
1
1
Push in Tray 2  
TRAY2  
SIZE SWITCH2 SIGNEL  
Check Paper in Tray 2  
TRAY2  
SIZE SWITCH3 SIGNEL  
2.6.3  
2.6.3  
2.6.3  
TRAY3  
SIZE SWITCH1 SIGNEL  
1
1
1
Push in Tray 3  
TRAY3  
SIZE SWITCH2 SIGNEL  
Check Paper in Tray 3  
Push in The Tray  
Push in All Trays  
TRAY3  
SIZE SWITCH3 SIGNEL  
No Paper in Tray 1  
2.6.1  
2.6.2  
2.6.3  
TRAY1 NO PAPAR  
SENSED SIGNEL  
1
Load  
Load  
Load  
Load  
in Tray 1  
in Tray 2  
in Tray 3  
in Tray  
TRAY2 NO PAPAR  
SENSED SIGNEL  
1
TRAY3 NO PAPAR  
SENSED SIGNEL  
1
stands for paper size  
No Paper in All Trays  
1
Imaginary Line  
2.6 Paper Supplying  
VI-17  
A
B
C
D
E
F
G
H
J
2.7.1 Tray1 paper feeding  
TRAY1 PAPER FEED MECHANISM  
2.4.1  
2.6.1  
2.7.6  
1
2
3
4
5
6
TRAY1  
TRAY1  
FEED PAPER  
FEED DRIVE  
TRAY1  
PAPER STACK  
POSITIONED  
A
MCU AND HVPS PWB  
PL15.1  
DRIVE PWB  
TRAY1 FEED  
SORENOID  
PL4.3  
DO-28  
TRAY1 FEED SOLENOID  
PL15.1  
DOUBLE  
PLUG  
CONTROL  
LOGIC  
J12  
YEL  
J47  
YEL  
ON(L) +24VDC  
J42  
YEL  
P474  
YEL  
J474  
10  
21  
12  
11  
1
2
2
1
DC COM  
YEL  
YEL  
+24VDC  
SWITCHED  
(CH1.1)  
TRAY1 TURN  
CLUTCH ASSY  
PL4.3  
DO-26  
TRAY1 TURN CLUTCH  
DOUBLE  
PLUG  
A
ON(L) +24VDC  
P475  
YEL  
J475  
22  
14  
13  
9
1
2
2
1
YEL  
YEL  
YEL  
YEL  
DC COM  
YEL  
+24VDC  
SWITCHED  
(CH1.1)  
2.7 Paper Transportation  
VI-18  
A
B
C
D
E
F
G
H
J
2.7.2 MSI paper feeding  
MSI PAPER DEEF MECHANISM  
2.4.1  
MSI  
1
2
3
4
5
6
FEED DRIVE  
2.7.6  
MSI  
FEED PAPER  
A
OPERATOR  
LOADED PAPER  
MCU AND HVPS PWB  
PL15.1  
MSI FEED  
SOLENOID  
PL7.2  
DO-24  
DOUBLE  
PLUG  
DOUBLE  
PLUG  
MSI FEED SOLENOID  
CONTROL  
LOGIC  
ON(L) +24VDC  
J13  
YEL  
P139  
YEL  
J139  
YEL  
P132  
YEL  
J132  
11  
10  
1
2
11  
1
2
2
1
DC COM  
10  
YEL  
YEL  
YEL  
YEL  
MCU AND HVPS PWB  
PL15.1  
+24VDC  
SWITCHED  
(CH1.1)  
CONTROL  
LOGIC  
+3.3VDC  
1
DOUBLE  
PLUG  
DI-10  
MSI NO PAPER  
SENSOR  
PL7.2  
2.7.7  
MSI NO PAPER  
MSI NO PAPER  
SENSED SIGNAL  
J135  
YEL  
J139  
YEL  
P139  
YEL  
J13  
SENSED(H) +3.3VDC  
1
9
3
9
YEL  
A
DOUBLE  
PLUG  
P139  
J139  
YEL  
J135  
YEL  
5
4
7
3
2
7
8
YEL YEL  
+3.3VDC  
(CH1.1)  
8
YEL YEL  
YEL  
YEL  
DC COM  
(CH1.1)  
1
Imaginary Line  
2.7 Paper Transportation  
VI-19  
A
B
C
D
E
F
G
H
J
2.7.3 Tray2 paper feeding  
TRAY2 PAPER FEED MECHANISM  
2.7.5  
2.6.2  
2.7.6  
1
2
3
4
5
6
TRAY2  
TRAY2  
FEED PAPER  
FEED DRIVE  
TRAY2  
PAPER STACK  
POSITIONED  
A
MCU AND HVPS PWB  
PL15.1  
TRAY2 FEED  
SORENOID  
PL17.3  
FEEDER PWB  
DO-52  
TRAY2 FEED SOLENOID  
ON(L) +24VDC  
DOUBLE  
PLUG  
CONNECTOR  
PL17.4  
DOUBLE  
PLUG  
CONTROL  
LOGIC  
J21 P210  
YEL YEL  
J210 P810  
YEL YEL  
J810 J81  
YEL YEL  
J82  
GRY  
P824  
GRY  
J824  
A8  
A7  
12  
11  
7
B7  
B7  
20  
1
2
2
1
DC COM  
GRY  
GRY  
+24VDC  
SWITCHED  
(CH1.1)  
TRAY2 TURN  
CLUTCH ASSY  
PL17.3  
DO-50  
DOUBLE  
PLUG  
A
TRAY2 TURN CLUTCH  
ON(L) +24VDC  
P825  
GRY  
J825  
A10  
A5  
14  
13  
5
B9  
B5  
22  
1
2
2
1
GRY  
GRY  
YEL YEL  
YEL YEL  
YEL YEL  
DC COM  
GRY  
+24VDC  
SWITCHED  
(CH1.1)  
2.7 Paper Transportation  
VI-20  
A
B
C
D
E
F
G
H
J
2.7.4 Tray3 paper feeding  
TRAY3 PAPER FEED MECHANISM  
2.7.5  
2.6.3  
TRAY3  
2.7.6  
1
2
3
4
5
6
TRAY3  
FEED PAPER  
FEED DRIVE  
TRAY3  
PAPER STACK  
POSITIONED  
A
MCU AND HVPS PWB  
PL15.1  
TRAY3 FEED  
SORENOID  
PL17.3  
FEEDER PWB  
DO-56  
PL17.4  
DOUBLE  
PLUG  
CONNECTOR  
DOUBLE  
PLUG  
CONTROL  
LOGIC  
TRAY3 FEED SOLENOID  
ON(L) +24VDC  
J21 P210  
YEL YEL  
J210 P810  
YEL YEL  
J810 J81  
YEL YEL  
J83  
P834  
BLU  
J834  
19  
DC COM  
12  
11  
8
B6  
B7  
A7  
A8  
1
2
2
1
BLU  
BLU  
BLU  
+24VDC  
SWITCHED  
(CH1.1)  
TRAY3 TURN  
CLUTCH ASSY  
PL17.3  
DO-54  
TRAY3 TURN CLUTCH  
ON(L) +24VDC  
A
DOUBLE  
PLUG  
P835  
BLU  
J835  
21  
14  
13  
6
B8  
B6  
A9  
A6  
1
2
2
1
YEL YEL  
YEL YEL  
YEL YEL  
BLU  
BLU  
DC COM  
BLU  
+24VDC  
SWITCHED  
(CH1.1)  
2.7 Paper Transportation  
VI-21  
A
B
C
D
E
F
G
H
J
2.7.5 Feeder drive control  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
FEEDER PWB  
PL17.4  
(NORTMAL SPEED) FEEDER DRIVE  
DO-10  
DO-11  
ASSY  
(HALF SPEED)  
CONNECTOR  
DOUBLE  
PLUG  
PL17.4  
CONTROL  
LOGIC  
MOTOR  
DRIVE  
J21  
YEL  
P210  
YEL  
J810  
YEL  
J81  
J84  
CLOCK A  
CLOCK A  
CLOCK B  
CLOCK XA  
CLOCK XB  
J210 P810  
YEL YEL  
20  
21  
22  
23  
13  
A7  
A7  
B7  
B7  
B8  
7
6
1
2
5
6
3
4
YEL  
DC COM  
DC COM  
DC COM  
DC COM  
A6  
A5  
A4  
B1  
A8  
B6  
B5  
B4  
A2  
CLOCK B  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
A9  
B9  
5
CLOCK XA  
CLOCK XB  
A10  
B13  
B10  
A13  
4
MOT  
D/A FEEDER MOTOR  
YEL  
14  
+24VDC  
SWITCHED  
(CH1.1)  
DRIVE MECHANISM  
2.7.3  
TRAY2  
FEED DRIVE  
TRAY3  
FEED DRIVE  
2.7.4  
2.7 Paper Transportation  
VI-22  
A
B
C
D
E
F
G
H
J
2.7.6 Registration  
2.8.6  
REGISTRATED  
PAPER  
2.4.1  
REGI  
1
2
3
4
5
6
ROLL DRIVE  
REGISTRATION  
C
2.4.1  
2.9.4  
MSI TRANSPORT  
ROLL DRIVE  
B
A
A
DUPLEX  
FEED PAPER  
2.7.2  
MST  
FEED PAPER  
MCU AND HVPS PWB  
PL15.1  
DO-20  
REGI CLUTCH  
ON(L) +24VDC  
REGI CLUTCH  
PL10.1  
J18  
CONTROL  
LOGIC  
5
4
2.7.1  
2.7.1  
TRAY1 PAPER  
ROLL DRIVE  
DC COM  
+24VDC  
SWITCHED  
(CH1.1)  
TRAY1  
FEED PAPER  
MSI TURN  
CLUTCH  
PL5.1  
DO-22  
MSI TURN CLUTCH  
ON(L) +24VDC  
2.7.3  
2.7.3  
TRAY2 PAPER  
ROLL DRIVE  
J19  
2
1
DC COM  
TRAY2  
FEED PAPER  
MCU AND HVPS PWB  
PL15.1  
+24VDC  
SWITCHED  
(CH1.1)  
+3.3VDC  
1
DI-3  
REGI SENSOR  
PL10.1  
2.7.4  
2.7.4  
TRAY3 PAPER  
ROLL DRIVE  
2.7.7  
REGI PAPER  
SENSED(L) +3.3VDC  
CONTROL  
LOGIC  
REGI PAPER  
SENSED SIGNAL  
J181  
1
J18  
3
TRAY3  
FEED PAPER  
B
J181  
3
1
2
+3.3VDC  
(CH1.1)  
2
OHP SENSOR  
PL10.1  
C
DC COM  
(CH1.1)  
+3.3VDC  
1
2.7.7  
OHP PAPER  
SENSED SIGNAL  
J321  
BLU  
J32  
BLU  
OHP PAPER  
SENSED(L) +3.3VDC  
3
1
1
3
J321  
BLU  
J32  
BLU  
2
2
+5VDC  
(CH1.1)  
BLU  
BLU  
DC COM  
(CH1.1)  
Imaginary Line  
1
2.7 Paper Transportation  
VI-23  
A
B
C
D
E
F
G
H
J
2.7.7 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
2.7.2  
MSI NO PAPER  
CONTROL  
LOGIC  
1
SENSED SIGNAL  
Load  
in MP Tray  
stands for paper size  
Check Paper in MP Tray  
2.7.6  
2.7.6  
REGI PAPER  
SENSED SIGNAL  
1
1
Feed Jam Open A-Cover  
Feed Jam Check Tray  
OHP PAPER  
SENSED SIGNAL  
Trans. Error Open A-Cover  
1
Imaginary Line  
2.7 Paper Transportation  
VI-24  
A
B
C
D
E
F
G
H
J
2.8.1 Charging and exposure  
CHARGING  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
Print head cartridge ASSY  
PL11.1  
DO-30  
HVPS  
HTC(Y)  
HTC POWER  
J804  
J805  
1
1
REFRESHER(Y)  
HTC(M)  
REFRESHER POWER  
REFRESHER(M)  
HTC(C)  
REFRESHER(C)  
HTC(K)  
Print head cartridge ASSY  
REFRESHER(K)  
EXPOSURE  
2.8.2  
2.8.2  
2.8.2  
2.8.2  
LATENT IMAGE(Y)  
LATENT IMAGE(M)  
LATENT IMAGE(C)  
LATENT IMAGE(K)  
2.5.1  
2.5.1  
2.5.1  
2.5.1  
LASER SCAN  
IMAGE(Y)  
LASER SCAN  
IMAGE(M)  
LASER SCAN  
IMAGE(C)  
LASER SCAN  
IMAGE(K)  
2.8 XEROGRAPHICS  
VI-25  
2.8 XEROGRAPHICS  
A
B
C
D
E
F
G
H
J
2.8.2 Development  
DRIVE MECHANISM  
MCU AND HVPS PWB  
PL15.1  
DRIVE PWB  
PL15.1  
DEVE DRIVE ASSY  
PL14.1  
DO-a  
DO-b  
(NORMAL SPEED)  
(HARF SPEED)  
1
2
3
4
5
6
ZN  
ZN  
CONTROL  
LOGIC  
MOTOR  
DRIVE  
CLOCK A  
J11  
YEL  
CLOCK B  
J41  
YEL  
J49  
3
4
5
6
1
1
40  
DC COM  
CLOCK XB  
CLOCK A  
2
3
4
5
39  
38  
37  
36  
CLOCK B  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
DC COM  
DC COM  
DC COM  
ZN  
ZN  
CLOCK XA  
CLOCK XB  
CLOCK XA  
D/A MAIN MOTOR  
MOT  
2
+24VDC  
SWITCHED  
(CH1.1)  
2.8.1  
2.8.5  
2.8.1  
2.8.5  
2.8.1  
2.8.5  
2.8.1  
2.8.5  
DEVELOPMENT  
LATENT IMAGE(Y)  
DISPENSED  
TONER(Y)  
PRINT HEAD  
CARTRIDGE ASSY  
PL11.1  
MCU AND HVPS PWB  
PL15.1  
DO-32  
DO-34  
ZN  
2.8.6  
2.8.6  
DEVELOPED  
IMAGE(Y)  
CONTROL  
LOGIC  
LATENT IMAGE(M)  
DEVELOPER(Y)  
DEVELOPER(M)  
DEVELOPER(C)  
DEVELOPER(K)  
DEVE BIAS(Y)  
J601  
J602  
J603  
J604  
1
1
1
1
DISPENSED  
TONER(M)  
ZN  
ZN  
ZN  
DO-36  
DEVELOPED  
IMAGE(M)  
DEVE BIAS(M)  
LATENT IMAGE(C)  
DO-38  
DEVE BIAS(C)  
2.8.6  
2.8.6  
DEVELOPED  
IMAGE(C)  
DISPENSED  
TONER(C)  
DO-3a  
DEVELOPED  
IMAGE(K)  
DEVE BIAS(K)  
LATENT IMAGE(K)  
DISPENSED  
TONER(K)  
VI-26  
A
B
C
D
E
F
G
H
J
2.8.3 Toner cartridge set  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
DRIVE PWB  
PL15.1  
TONER  
+3.3VDC  
1
DRIVE PWB  
PL15.1  
A
B
CARTRIDGE  
SWITCH ASSY (Y)  
DI-8  
CONTROL  
LOGIC  
TONER CARTRIDGE(Y)  
SET SIGNAL  
2.8.8  
TONER CARTRIDGE(Y)  
SET(L) +3.3VDC  
PL12.2  
J51  
12  
J431  
YEL  
J431  
GRY  
J12  
J51  
J42  
27  
1
1
2
11  
4
YEL  
YEL  
GRY  
YEL  
DC COM  
(CH1.1)  
TONER  
CARTRIDGE  
SWITCH ASSY (M)  
PL12.2  
+3.3VDC  
+3.3VDC  
+3.3VDC  
1
DI-9  
TONER CARTRIDGE(M)  
SET SIGNAL  
2.8.8  
2.8.8  
TONER CARTRIDGE(M)  
SET(L) +3.3VDC  
J432  
YEL  
J432  
GRY  
J12  
VIO  
14  
2
27  
27  
27  
13  
29  
5
6
YEL  
GRY  
VIO  
DC COM  
(CH1.1)  
TONER  
CARTRIDGE  
SWITCH ASSY (C)  
1
C
DI-a  
TONER CARTRIDGE(C)  
SET SIGNAL  
TONER CARTRIDGE(C)  
SET(L) +3.3VDC  
PL12.2  
J433  
YEL  
J433  
GRY  
J12  
BLU  
30  
1
1
2
GRY  
BLU  
YEL  
DC COM  
(CH1.1)  
TONER  
CARTRIDGE  
SWITCH ASSY (K)  
1
DI-b  
TONER CARTRIDGE(K)  
SET SIGNAL  
TONER CARTRIDGE(K)  
SET(L) +3.3VDC  
PL12.2  
2.8.8  
J434  
YEL  
J434  
GRY  
J12  
GRY  
32  
2
31  
3
YEL  
GRY  
GRY  
DC COM  
(CH1.1)  
TONER CARTRIDGE SET  
1
C
Imaginary Line  
B
A
2.8 XEROGRAPHICS  
VI-27  
2.8 XEROGRAPHICS  
A
B
C
D
E
F
G
H
J
2.8.4 Toner dispense control  
MCU AND HVPS PWB  
PL15.1  
MCU AND HVPS PWB  
PL15.1  
TONER MOTOR  
ASSY(K)  
DRIVE PWB  
PL15.1  
1
2
3
4
5
6
DRIVE PWB  
PL15.1  
TONER MOTOR  
ASSY(Y)  
DO-1e  
PL12.2  
CONTROL  
LOGIC  
DO-18  
J51  
CLOCK A J511  
PL12.2  
CONTROL  
CLOCK A  
CLOCK B  
J11  
J41  
YEL  
J51 CLOCK A J514  
37  
38  
39  
40  
4
3
2
1
25  
26  
27  
28  
24  
4
3
2
1
1
LOGIC  
CLOCK A  
CLOCK B  
J11  
YEL  
J41  
YEL  
YEL  
YEL  
YEL  
YEL  
GRY  
GRY  
25  
26  
27  
28  
16  
2
3
4
5
1
4
3
2
1
1
GRY  
GRY  
DC COM  
CLOCK B  
DC COM  
DC COM  
DC COM  
DC COM  
CLOCK B  
YEL  
GRY  
GRY  
GRY  
15  
14  
13  
YEL  
YEL  
YEL  
YEL  
GRY  
GRY  
GRY  
DC COM  
DC COM  
DC COM  
+24VDC  
CLOCK XA  
YEL  
CLOCK XA  
MOT  
CLOCK XA  
YEL  
CLOCK XA  
GRY  
GRY  
GRY  
MOT  
GRY  
GRY  
YEL  
CLOCK XB  
YEL  
CLOCK XB  
CLOCK XB  
YEL  
CLOCK XB  
GRY  
GRY  
YEL  
GRY  
SWITCHED  
(CH1.1)  
+24VDC  
SWITCHED  
(CH1.1)  
TONER MOTOR  
ASSY(M)  
DO-1a  
CLOCK A J512  
PL12.2  
CLOCK A  
CLOCK B  
12  
11  
10  
9
7
8
4
3
2
1
1
29  
30  
31  
32  
TONER DISPENSE CONTROL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
GRY  
GRY  
DC COM  
DC COM  
DC COM  
DC COM  
CLOCK B  
GRY  
GRY  
CLOCK XA  
YEL  
CLOCK XA  
GRY GRY  
MOT  
9
CLOCK XB  
YEL  
CLOCK XB  
GRY  
10  
6
GRY  
VIO  
VIO  
+24VDC  
SWITCHED  
(CH1.1)  
TONER MOTOR  
ASSY(C)  
PL12.2  
DESPENSED  
TONER(Y)  
2.8.2  
2.8.2  
DO-1c  
CLOCK A J513  
CLOCK A  
CLOCK B  
33  
34  
35  
36  
8
7
6
5
20  
21  
22  
23  
19  
4
3
2
1
1
YEL  
YEL  
YEL  
YEL  
YEL  
GRY  
GRY  
DC COM  
DC COM  
DC COM  
DC COM  
DESPENSED  
TONER(M)  
CLOCK B  
YEL  
GRY  
GRY  
GRY  
CLOCK XA  
YEL  
CLOCK XA  
DESPENSED  
TONER(C)  
2.8.2  
2.8.2  
MOT  
GRY  
GRY  
BLU  
CLOCK XB  
YEL  
CLOCK XB  
GRY  
BLU  
DESPENSED  
TONER(K)  
+24VDC  
SWITCHED  
(CH1.1)  
VI-28  
A
B
C
D
E
F
G
H
J
2.8.5 Low toner sensing  
MCU AND HVPS PWB  
PL15.1  
1
2
3
4
5
6
DI-c  
DI-d  
DI-e  
DI-f  
(Y)  
(M)  
(C)  
(K)  
DRIVE PWB  
PL15.1  
LOW TONER  
SENSOR(Y)  
PL12.2  
DRIVE PWB  
PL15.1  
A
1
+3.3VDC  
CONTROL  
LOGIC  
NO TONER  
CHECK  
CONTROL  
NO TONER(Y)  
J51  
15  
J441  
GRY  
J441  
YEL  
J51  
16  
3
1
2
2.8.8  
GRY  
YEL  
NO TONER  
SENSED(L) +3.3VDC  
NO TONER  
SENSED SIGNAL  
J42  
J12  
DC COM  
(CH1.1)  
28  
3
N.C.  
YEL  
YEL  
LOW TONER  
SENSOR(M)  
PL12.2  
B
J442  
GRY  
NO TONER(M)  
NO TONER CHECK(C)  
YEL  
J442  
VIO  
10  
9
21  
22  
23  
17  
3
1
2
2
18  
34  
36  
GRY  
VIO  
YEL  
YEL  
YEL  
YEL  
DC COM  
(CH1.1)  
N.C.  
NO TONER CHECK(M)  
YEL  
C
LOW TONER  
SENSOR(C)  
PL12.2  
NO TONER CHECK(Y)  
8
YEL  
YEL  
NO TONER(C)  
J443  
GRY  
J443  
BLU  
33  
3
1
NO TONER CHECK(K)  
GRY  
BLU  
7
24  
DC COM  
(CH1.1)  
N.C.  
D
LOW TONER  
SENSOR(K)  
PL12.2  
NO TONER(K)  
J444  
GRY  
J444  
GRY  
35  
3
1
2
GRY  
GRY  
DC COM  
(CH1.1)  
N.C.  
TONER DISPENSE MECHANISM  
C
D
1
Imaginary Line  
A
B
2.8 XEROGRAPHICS  
VI-29  
2.8 XEROGRAPHICS  
A
B
C
D
E
F
G
H
J
2.8.6 Transfer and cleaning  
1
2
3
4
5
6
MCU AND HVPS PWB  
PL15.1  
SUB HVPS  
PL12.1  
DO-4c  
DTS  
ON(L) +24VDC  
Transfer roll cartridge  
UNIT ASSY  
PL9.1  
2.9.1  
UNFUSED  
PRINT  
J13  
J5011  
YEL  
CONTROL  
LOGIC  
DTS  
CONTROL  
31  
28  
2
5
YEL  
Transfer roll  
cartridge  
Transfer roll cartridge  
J5030  
J5020  
1
1
1
DTS REF  
DO-48  
YEL  
YEL  
Transfer roll cartridge PLUS  
ON(L) +24VDC  
YEL  
Transfer roll cartridge  
DTS  
Transfer  
roll  
cartridge  
control  
29  
26  
4
7
YEL  
DTS  
PLUS REF  
YEL  
YEL  
MCU AND HVPS PWB  
PL15.1  
DO-4a  
Transfer roll cartridge MINUS  
ON(L) +24VDC  
Transfer roll  
cartridge  
monitor  
TRANSFER AND CLEANING  
Print head cartridge  
ASSY  
PL11.1  
J5011  
YEL  
J13  
32  
CONTROL  
LOGIC  
30  
27  
24  
22  
23  
25  
3
6
DO-40  
DO-42  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
Transfer roll cartridge  
MINUS REF  
3.0V REF  
IDT2  
YEL  
YEL  
YEL  
YEL  
YEL  
J702 IDT2  
HVPS  
1
1
1
1
DO-46  
IDT2  
9
IDT2 CLEANER  
IDT1  
CLEANER  
J802  
11  
10  
8
DO-3c  
DO-3e  
J701 IDT1  
+24VDC  
SWITCHED  
(CH1.1)  
DO-44  
IDT1  
IDT1 CLEANER  
CLEANER  
J801  
DC COM  
(CH1.1)  
2.8.2  
2.8.2  
2.8.2  
DEVELOPED  
IMAGE(Y)  
DEVELOPED  
IMAGE(M)  
DEVELOPED  
IMAGE(C)  
DEVELOPED  
IMAGE(K)  
2.8.2  
2.7.6  
REGISTRATED  
PAPER  
VI-30  
A
B
C
D
E
F
G
H
J
2.8.7 ADC and environment sensing  
HUM TEMP  
SENSOR  
PL4.2  
1
2
3
4
5
6
MCU AND HVPS PWB  
PL15.1  
MCU AND HVPS PWB  
PL15.1  
DOUBLE  
PLUG  
DOUBLE  
PLUG  
2.8.8  
1
1
HUMI SIGNAL  
TEMP SIGNAL  
HUMI  
TEMP  
J24  
YEL  
P2361  
YEL  
J2361  
YEL  
J231  
YEL  
J231  
YEL  
J2361  
YEL  
P2361  
YEL  
J24  
CONTROL  
LOGIC  
4
2
1
3
4
2
1
3
2
4
3
1
2
4
3
1
YEL  
+5VDC  
(CH1.1)  
2.8.8  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
DC COM  
(CH1.1)  
ADC SENSOR  
ASSY  
PL5.1  
DOUBLE  
PLUG  
DOUBLE  
PLUG  
CONTROL  
LOGIC  
P1361 ADC VOUT J13  
LED ON  
J13  
YEL  
P1361  
YEL  
J1361  
YEL  
J136  
YEL  
J136  
YEL  
J1361  
YEL  
16  
1
4
3
5
2
3
1
4
3
5
1
4
5
2
12  
15  
YEL  
YEL  
ADC SENSOR  
SENSED SIGNEL  
2.8.8  
DC COM  
1
1
ADC MONITOR  
13  
14  
2
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
A
YEL  
YEL  
+5VDC  
(CH1.1)  
DC COM  
(CH1.1)  
+3.3VDC  
WASTE TONER  
SENSOR  
DOUBLE  
PLUG  
WASTE TONER FULL  
SENSED SIGNAL  
WASTE TONER FULL  
SENSED(H) +3.3VDC  
2.8.8  
PL5.1  
J140  
YEL  
J142  
YEL  
J141  
P141  
YEL  
2
2
2
12  
YEL  
DOUBLE  
PLUG  
B
J140 P141  
YEL YEL  
J141  
YEL  
J142  
YEL  
13  
11  
1
3
3
1
1
3
ADC  
+5VDC  
(CH1.1)  
A
B
YEL YEL  
YEL  
YEL  
DC COM  
(CH1.1)  
1
Imaginary Line  
2.8 XEROGRAPHICS  
VI-31  
2.8 XEROGRAPHICS  
A
B
C
D
E
F
G
H
J
2.8.8 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
IOT Envirnment Sensor Error  
IOT CTD Sensor Error  
IOT Low Density Error  
2.8.3  
2.8.3  
2.8.3  
10-354  
9-340  
9-342  
TONER CARTRIDGE(Y)  
SET SIGNAL  
CONTROL  
LOGIC  
1
Reinsert Yellow Toner (Y)  
Reinsert Magenta Toner (M)  
Reinsert Cyan Toner (C)  
Reinsert Black Toner (B)  
TONER CARTRIDGE(M)  
SET SIGNAL  
1
1
TONER CARTRIDGE(C)  
SET SIGNAL  
2.8.3  
2.8.5  
TONER CARTRIDGE(K)  
SET SIGNAL  
1
1
NO TONER  
SENSED SIGNAL  
Replace Yellow Toner (Y)  
Replace Magenta Toner (M)  
Replace Cyan Toner (C)  
Replace Black Toner (B)  
2.8.7  
2.8.7  
2.8.7  
1
1
1
HUMI SIGNAL  
TEMP SIGNAL  
10-354  
ADC SENSOR  
SENSED SIGNEL  
9-340  
9-342  
Clean Up CTD Sensor  
Reinsert Transfer Roll  
2.8.7  
WASTE TONER FULL  
SENSED SIGNAL  
1
1
Replace Transfer Roll  
Imaginary Line  
VI-32  
A
B
C
D
E
F
G
H
J
2.9.1 Fusing and fuser heat control  
FUSING  
D
1
2
3
4
5
6
A
2.8.6 UNFUSED  
PRINT  
2.9.3  
2.9.4  
HEAT  
AIR  
B
C
FUSED  
PRINT  
2.9.2  
FUSER  
DRIVE  
MCU AND HVPS PWB  
PL15.1  
1
CONTROL  
+3.3VDC  
FUSER ASSY  
PL9.1  
EXIT  
LOGIC  
DI-2  
EXIT PAPER  
EXIT SENSOR  
CONN-  
ECTOR  
DOUBLE  
PLUG  
PAPER  
SENSED 2.9.6  
SIGNEL  
SENSED(L) +3.3VDC  
P323 P321  
J232 P138  
J138  
YEL  
J13  
19  
1
A3  
A3  
3
3
YEL  
MCU AND HVPS PWB  
PL15.1  
A
DOUBLE  
PLUG  
CONN-  
ECTOR  
J13  
YEL YEL  
J138  
P138  
J232  
P321 P323  
A5  
A1  
3
2
17  
5
4
1
2
+3.3VDC  
(CH1.1)  
A4  
A2  
18  
21  
YEL YEL  
1
DC COM  
(CH1.1)  
TEMP SENSOR  
TEMP  
SENSOR 2.9.6  
SIGNAL  
FUSER TEMP SENSOR  
YEL YEL  
J322  
J322  
A1  
A5  
1
2
1
5
A4  
A2  
4
2
20  
YEL YEL  
DC COM  
(CH1.1)  
B
DRIVE  
PWB  
PL15.1  
LVPS  
PL15.1  
CONTROL  
LOGIC  
C
HEATER  
HEATER  
CONTROL  
HEATER ON  
J12 J42  
J61  
J165  
J162  
J325  
20  
11  
4
5
2
3
3
1
DC COM  
AC RETURN  
(CH1.1)  
THERMOSTAT  
N.C.  
2
1
2
1
1
Imaginary Line  
D
AC POWER  
(CH1.1)  
2.9 Fusing and Transportation  
VI-33  
2.9 Fusing and Transportation  
A
B
C
D
E
F
G
H
J
2.9.2 Fuser drive control  
1
2
3
4
5
6
MCU AND HVPS PWB  
PL15.1  
DRIVE PWB  
PL15.1  
FUSER DRIVE  
ASSY  
DO-d (NORMAL SPEED)  
PL6.2  
(HALF SPEED)  
DO-e  
CONTROL  
LOGIC  
MOTOR  
DRIVE  
J11  
CLOCK B  
J41  
CLOCK A  
12  
29  
3
4
5
6
1
2
J52  
YEL  
YEL  
DC COM  
DC COM  
DC COM  
DC COM  
CLOCK XB  
CLOCK A  
13  
14  
15  
16  
28  
27  
26  
25  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
CLOCK B  
CLOCK XA  
CLOCK XB  
CLOCK XA  
MOT  
D/A FUSER MOTOR  
YEL  
+24VDC  
SWITCHED  
(CH1.1)  
DRIVE MECHANISM  
2.9.1  
FUSER DRIVE  
VI-34  
A
B
C
D
E
F
G
H
J
2.9.3 Fan control  
COOLING FANS  
1
2
3
4
5
6
AIR  
2.9.1  
HEAT AIR  
MCU AND HVPS PWB  
PL15.1  
MCU AND HVPS  
PWB  
PL15.1  
DO-13 (HIGH SPEED)  
DRIVE PWB  
PL15.1  
DO-14 (LOW SPEED)  
FUSER FAN  
DOUBLE  
PLUG  
FUSER FAN  
PL1.1  
DRIVE  
PWB  
PL15.1  
CONTROL  
+3.3VDC  
FUSER FAN  
1
DI-30  
FUSER FAN FAIL  
(H) +3.3VDC  
CONTROL  
LOGIC  
STOP  
FAN  
ON(H) +24VDC  
LOGIC  
J12  
YEL  
J42  
J50  
YEL  
J137  
YEL  
DOUBLE  
PLUG  
P137  
1
30  
1
7
9
3
1
1
3
CONTROL  
2.9.6  
YEL  
FUSER FAN  
LOW  
FUSER FAN  
FAIL SIGNAL  
P137  
J137  
YEL  
J50  
YEL  
J42 J12  
YEL YEL  
DC COM  
MOT  
2
2
8
27  
4
30  
YEL  
YEL  
YEL  
YEL  
DC COM  
(CH1.1)  
DO-13 (HIGH SPEED)  
DO-14 (LOW SPEED)  
LVPS  
PL15.1  
REAR FAN  
PL15.1  
REAR FAN  
STOP  
YEL  
REAR FAN  
LOW  
REAR FAN  
+3.3VDC  
1
DI-31  
REAR FAN FAIL  
ON(H) +24VDC  
J166  
J61 J165  
YEL YEL  
FAN  
CONTROL  
LVPS  
PL15.1  
1
3
8
1
18  
19  
13  
12  
YEL  
YEL  
REAR FAN  
FAIL SIGNAL  
2.9.6  
J166  
J165  
YEL  
(H) +3.3VDC  
J61  
DC COM  
MOT  
2
7
2
29  
2
YEL  
YEL YEL  
6
YEL  
YEL YEL  
3
DC COM  
1
Imaginary Line  
2.9 Fusing and Transportation  
VI-35  
2.9 Fusing and Transportation  
A
B
C
D
E
F
G
H
J
2.9.4 Exit and invert transpotation  
2.9.1  
PRINT TO  
FACE DOWN TRAY  
A
FUSED PRINT  
1
2
3
4
5
6
2.9.5  
2.9.5  
2.9.5  
ROLL MID  
DRIVE  
ROLL DUP  
DRIVE  
ROLL EXIT  
DRIVE  
2.7.6  
DUPLEX  
FEED PAPER  
MCU AND HVPS PWB  
PL15.1  
+3.3VDC  
1
DUP JAM SENSOR  
PL7.1  
DOUBLE  
PLUG  
DI-1  
CONTROL  
LOGIC  
DUP JAM PAPER  
SENSED SIGNAL  
2.9.6  
DUP JAM PAPER  
SENSED(H) +3.3VDC  
J133  
YEL  
J139  
YEL  
P139  
YEL  
J13  
3
1
3
9
YEL  
MCU AND HVPS  
PWB  
PL15.1  
DOUBLE  
PLUG  
J13  
P139  
J139  
YEL  
J133  
YEL  
1
2
11  
1
2
3
2
YEL YEL  
+3.3VDC  
(CH1.1)  
10  
YEL YEL  
YEL  
YEL  
DC COM  
(CH1.1)  
+3.3VDC  
1
FULL STACK  
SENSOR  
PL7.1  
DI-0  
A
2.9.6  
PAPER FULL STACK  
SENSED(H) +3.3VDC  
PAPER FULL STACK  
SENSED SIGNAL  
J134  
YEL  
1
6
6
6
YEL  
YEL  
YEL  
J134  
YEL  
4
5
8
7
4
5
3
2
YEL YEL  
YEL YEL  
YEL  
YEL  
+3.3VDC  
(CH1.1)  
YEL  
DC COM  
(CH1.1)  
1
Imaginary Line  
VI-36  
A
B
C
D
E
F
G
H
J
DO-3 (FORWARD NORMAL SPEED)  
DO-4 (FORWARD HALF SPEED)  
DO-5 (FORWARD DOUBLE SPEED)  
DO-3 (REVERSE NORMAL SPEED)  
DO-4 (REVERSE HALF SPEED)  
DO-5 (REVERSE DOUBLE SPEED)  
2.9.5 Exit and invert mechanism  
MCU AND HVPS PWB  
PL15.1  
DRIVE PWB  
PL15.1  
DUP MOTOR ASSY  
PL8.1  
1
2
3
4
5
6
DOUBLE  
PLUG  
CONTROL  
MOTOR  
DRIVE  
LOGIC  
CLOCK A  
CLOCK B  
CLOCK XA  
CLOCK XB  
J12  
YEL  
CLOCK A  
J42  
YEL  
J50  
YEL  
J131  
YEL  
P131  
5
6
26  
4
3
2
1
6
5
3
4
5
6
1
2
3
4
5
6
1
2
DC COM  
DC COM  
DC COM  
DC COM  
CLOCK B  
25  
24  
23  
2
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
YEL  
CLOCK XA  
CLOCK XB  
D/A DUP MOTOR  
7
8
MOT  
29  
+24VDC  
SWITCHED  
(CH1.1)  
DRIVE MECHANISM  
2.9.4  
2.9.4  
ROLL EXIT  
DRIVE  
ROLL MID  
DRIVE  
2.9.4  
ROLL DUP  
DRIVE  
2.9 Fusing and Transportation  
VI-37  
A
B
C
D
E
F
G
H
J
2.9.6 Monitoring  
MCU AND HVPS PWB  
PL15.1  
CONTROL PANEL  
PL1.1  
1
2
3
4
5
6
IOT Fuser Detached  
IOT Fuser Failure  
2.9.1  
2.9.1  
10-317  
10-350  
1-360  
EXIT PAPER  
CONTROL  
LOGIC  
1
SENSED SIGNEL  
Feed Jam Open A/B-Cover  
TEMP SENSOR  
SIGNAL  
1
10-317  
10-350  
IOT Fan Motor Failure  
2.9.3  
2.9.3  
2.9.4  
2.9.4  
FUSER FAN  
FAIL SIGNAL  
1
1
1-360  
REAR FAN  
FAIL SIGNAL  
DUP JAM PAPER  
SENSED SIGNAL  
1
1
Feed Jam Open B-Cover  
Empty Exit Tray  
PAPER FULL STACK  
SENSED SIGNAL  
1
Imaginary Line  
2.9 Fusing and Transportation  
VI-38  
CHAPTER VII  
3/8*ꢀ-$&.ꢁꢂ3ꢀ-ꢃꢁ  
&211(&725ꢁ/2&$7,216ꢁ  
&217(176ꢁ  
CHAPTER VII PLUG/JACK (P/J) CONNECTOR LOCATIONS ....VII-1  
1. LIST OF P/J...............................................................................................VII-1  
1.1 Base Engine ................................................................................................................... VII-1  
1.2 2 Tray Module................................................................................................................. VII-3  
2. P/J LAYOUT DIAGRAM ............................................................................VII-4ꢀ  
2.1 IOT Top........................................................................................................................... VII-4  
2.2 IOT Front/RH .................................................................................................................. VII-5  
2.3 MCU and HVPS PWB/ESS PWB ................................................................................... VII-6  
2.4 Tray 1.............................................................................................................................. VII-7  
2.5 2 Tray Module................................................................................................................. VII-8  
CHAPTER VII PLUG/JACK (P/J) CONNECTOR LOCATIONS  
1.  
LIST OF P/J  
The following tables list the connector (P/J) coordiates corresponding to 7.2 P/J Layout  
Diagram.  
1.1  
Base Engine  
P/J  
1
Coordiates Remarks  
H-32  
J-32  
J-43  
I-43  
Connector for ESS PWB memory  
10  
11  
12  
12  
13  
14  
14  
15  
18  
19  
21  
22  
23  
24  
26  
27  
30  
31  
32  
32  
33  
34  
41  
42  
45  
47  
48  
49  
50  
50  
51  
52  
60  
61  
64  
Connector for ESS PWB parallel interface  
Connects MCU and HVPS PWB and harness ASSY DRV1  
Connects MCU and HVPS PWB and harness ASSY DRV2  
Connector for USB interface on ESS PWB  
Connects MCU and HVPS PWB and harness ASSY front 1A  
Connects MCU and HVPS PWB and ESS PWB  
Connector for font card on ESS PWB  
J-32  
H-43  
J-43  
J-32  
H-43  
H-44  
H-44  
I-43  
Connects MCU and HVPS PWB and harness ASSY scanner KA  
Connects MCU and HVPS PWB and REGI clutch  
Connects MCU and HVPS PWB and MSI turn clutch  
Connects MCU and HVPS PWB and harness ASSY OPF main  
Connects MCU and HVPS PWB and harness ASSY OPEPANE AS  
Connects MCU and HVPS PWB and harness ASSY LVRMT  
Connects MCU and HVPS PWB and harness ASSY TMPB  
--  
J-43  
I-43  
H-43  
H-43  
I-33  
Connects ESS PWB and MCU and HVPS PWB  
Flash-write  
H-43  
J-43  
H-43  
J-33  
I-32  
For test print  
Connects MCU and HVPS PWB and harness ASSY OHP  
-- (ESS PWB)  
Connector for connecting to ESS PWB hard disk  
Connector for connecting to ESS PWB network card  
Connects drive PWB and harness ASSY DRV1  
Connects drive PWB and harness ASSY DRV2  
Connector for ESS PWB Ethernet  
J-32  
I-18  
J-18  
K-32  
J-18  
I-18  
Connects drive PWB and harness ASSY feeder  
Connects drive PWB and main motor ASSY  
Connects drive PWB and DEVE motor ASSY  
Connects drive PWB and harness ASSY DUP  
-- (ESS PWB)  
I-17  
J-18  
I-32  
J-16  
I-18  
Connects drive PWB and harness ASSY TNR  
Connects drive PWB and fuser motor ASSY  
Connects drive PWB and harness ASSY 24V  
Connects drive PWB and harness ASSY LVNC  
-- (ESS PWB)  
I-17  
J-18  
I-32  
VII-1  
P/J  
66  
Coordiates Remarks  
I-32  
B-32  
J-32  
H-32  
B-7  
Connector for connecting to EEPROM on ESS PWB  
71  
Connects harness ASSY EEPROM and harness ASSY CRUM  
-- (ESS PWB)  
80  
120  
131  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
144  
151  
161  
162  
163  
164  
165  
166  
167  
181  
210  
220  
Jamper pin on ESS PWB  
Connects harness ASSY DUP and DUP motor ASSY  
Connects harness ASSY front 2 and MSI feed solenoid  
Connects harness ASSY front 2 and DUP JAM sensor  
Connects harness ASSY front 2 and full stack sensor  
Connects harness ASSY front 2 and MSI no paper sensor  
Connects harness ASSY CTD and ADC sensor ASSY  
Connects harness ASSY DUP and fuser fan  
B-9  
D-8  
D-6  
C-9  
C-23  
F-8  
B-32  
B-33  
H-43  
B-32  
D-23  
E-35  
F-22  
H-29  
H-29  
H-27  
H-28  
H-28  
H-27  
H-28  
E-38  
H-23  
E-7  
Connects harness ASSY front 1A and harness ASSY FSR2  
Connects harness ASSY front 1A and harness ASSY front 2  
Connects MCU and HVPS PWB and harness ASSY EEPROM  
Connects harness ASSY EEPROM and harness ASSY TFLSNR  
Connects harness ASSY TFLSNR and waste toner sensor  
Connects harness ASSY EEPROM and EEPRON PWB  
Connects harness ASSY scanner KA and scanner ASSY  
Connects LVPS and harness ASSY AC SW  
Connects LVPS and harness ASSY FSR2  
Connects LVPS and harness ASSY 24V  
Connects LVPS and harness ASSY LVRPG  
Connects LVPS and harness ASSY LVNC  
Connects LVPS and rear fan  
Connects LVPS and harness ASSY LVRMT  
Connects REGI sensor and REGI clutch (harness section)  
Connects harness ASSY OPF main and harness ASSY OPFREC  
Connects harness ASSY OPEPANE B and control panel HANABI  
Connects harness ASSY OPEPANE A and harness ASSY  
OPEPANE B  
221  
B-33  
231  
232  
311  
321  
431  
432  
433  
434  
441  
442  
443  
444  
C-49  
F-23  
I-42  
Connects harness ASSY TMPA and HUM TEMP sensor  
Connects harness ASSY FSR2 and furser ASSY  
Connects MCU and HVPS PWB and harness ASSY LVRPG  
Connects harness ASSY OHP and OHP sensor  
E-6  
E-6  
E-5  
F-5  
G-7  
G-6  
H-6  
H-6  
Connects harness ASSY OHP and OHP sensor (Y)  
Connects harness ASSY OHP and OHP sensor (M)  
Connects harness ASSY OHP and OHP sensor (C)  
Connects harness ASSY OHP and OHP sensor (K)  
Connects harness ASSY TNR and low toner sensor (Y)  
Connects harness ASSY TNR and low toner sensor (M)  
Connects harness ASSY TNR and low toner sensor (C)  
Connects harness ASSY TNR and low toner sensor (K)  
VII-2  
P/J  
471  
472  
473  
474  
475  
511  
512  
513  
514  
710  
810  
960  
1361  
2361  
5011  
5020  
5030  
Coordiates Remarks  
J-49  
E-4  
Connects harness ASSY feeder and tray1 size switch ASSY  
Connects harness ASSY feeder and tray 1 no paper sensor  
Connects harness ASSY feeder and tray 1 low paper sensor  
Connects harness ASSY feeder and tray1 feed clutch  
Connects harness ASSY feeder and tray 1 turn clutch ASSY  
Connects harness ASSY TNR and toner motor ASSY (Y)  
Connects harness ASSY TNR and toner motor ASSY (M)  
Connects harness ASSY TNR and toner motor ASSY (C)  
Connects harness ASSY TNR and toner motor ASSY (K)  
Connects harness ASSY CRUM and bracket CRUM  
Connects harness ASSY OPFREC and harness ASSY PLG  
Connector for connecting to EEPROM on ESS PWB  
Connects harness ASSY front 1A and harness ASSY CTD  
Connects harness ASSY TMPB and harness ASSY TMPA  
Connects harness ASSY front 1A and SUB HVPS  
H-57  
G-49  
H-49  
I-7  
I-6  
J-6  
J-6  
D-6  
J-57  
I-33  
B-32  
E-36  
F-35  
E-35  
E-35  
Connects SUB HVPS and wire ASSY transfer roll cartridge  
Connects SUB HVPS and wire ASSY DTS  
1.2  
2 Tray Module  
P/J  
832  
822  
824  
834  
825  
835  
8220  
8220  
810  
81  
Coordiates Remarks  
C-3  
E-3  
Connects tray3 no paper sensor and harness ASSY NPRSJ  
Connects tray2 no paper sensor and harness ASSY NPRSJ  
Connects tray2 feed solenoid and harness ASSY FDR2T  
Connects tray3 feed solenoid and harness ASSY FDR3T  
Connects tray2 turn clutch ASSY and harness ASSY FDR2T  
Connects tray3 turn clutch ASSY and harness ASSY FDR3T  
Connects harness ASSY NPRSJ and harness ASSY FDR2T  
Connects harness ASSY NPRSJ and harness ASSY FDR3T  
Connects harness ASSY OPFREC and harness ASSY PLG  
Connects feeder PWB and harness ASSY PLG  
F-3  
K-12  
I-13  
H-13  
G-3  
K-11  
H-3  
J-3  
83  
K-6  
Connects feeder PWB and harness ASSY FDR3T  
82  
K-8  
Connects feeder PWB and harness ASSY FDR2T  
84  
K-9  
Connects feeder PWB and feeder motor ASSY  
821  
831  
823  
833  
K-7  
Connects harness ASSY FDR2T and tray2 size switch ASSY  
Connects harness ASSY FDR3T and tray3 size switch ASSY  
Connects harness ASSY FDR2T and tray2 low paper sensor  
Connects harness ASSY FDR3T and tray3 low paper sensor  
K-10  
F-13  
E-13  
VII-3  
.  
P/J LAYOUT DIAGRAM  
2.1  
IOT Top  
VII-4  
2.2  
IOT Front/RH  
VII-5  
2.3  
MCU and HVPS PWB/ESS PWB  
VII-6  
2.4  
Tray1  
VII-7  
2.5  
2 Tray Module  
VII-8  

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