OKIPAGE24DX / OKIPAGE24dx
LED Page Printer
Maintenance Manual
ODA/ OEL/ INT
1998.12.22 DRAFT Version
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CONTENTS
1. CONFIGURATION ....................................................................................... 7
1.1 System Configuration................................................................................................. 7
1.2 Printer Configuration .................................................................................................. 8
1.3 Optional Configuration ............................................................................................... 9
1.4 Specification............................................................................................................... 11
1.5 Safety Standards ....................................................................................................... 13
1.5.1 Certification label .......................................................................................... 13
1.5.2 Warning label................................................................................................ 13
2. OPERATION DESCRIPTION ...................................................................... 14
2.1 Main Control Board (BOARD-FFF) ............................................................................ 16
2.2 Power Supply Unit ..................................................................................................... 20
2.3 Electro-photographic Process .................................................................................... 22
2.3.1 Electro-photographic process mechanism ................................................... 22
2.3.2 Electro-photographic process....................................................................... 24
2.4.3 Process operation descriptions .................................................................... 28
2.3.4 Revision of LED Head Illumination ............................................................... 39
2.4 Paper Jam Detection ................................................................................................. 47
2.5 Cover Open................................................................................................................ 48
2.6 Toner Low Detection .................................................................................................. 49
2.7 Stacker-full Detection ................................................................................................. 51
2.8 Page Size Detection .................................................................................................. 51
3. PARTS REPLACEMENT............................................................................. 52
3.1 Precautions for Parts Replacement ........................................................................... 52
3.2 Parts Layout ............................................................................................................... 54
3.3 How to Change Parts ................................................................................................. 58
3.3.1 Face -up Stacker Assy ................................................................................. 59
3.3.2 Contact Assy ................................................................................................ 60
3.3.3 DC Fan Motor ............................................................................................... 61
3.3.4 OP Panel Assy ............................................................................................. 62
3.3.5 Board-FFF .................................................................................................... 63
3.3.6 Stacker Assy, Damper Arm, Cover Rear..................................................... 64
3.3.7 Sensor Stacker Full ...................................................................................... 65
3.3.8 Cable cover (guide film)................................................................................ 66
3.3.9 Damper......................................................................................................... 67
3.3.10 Feeder Unit-Front ......................................................................................... 68
3.3.11 Roller Assy-Regist ........................................................................................ 69
3.3.12 Motor -Main .................................................................................................. 70
3.3.13 Guide Assy-Eject .......................................................................................... 72
3.3.14 Heat Assy ..................................................................................................... 73
3.3.15 Roller feed (C) ............................................................................................. 74
3.3.16 Roller Assy-BK ............................................................................................. 75
3.3.17 Roller Assy-Feed .......................................................................................... 76
3.3.18 LED Head ..................................................................................................... 77
3.3.19 Paper cassette, ROLLER Ass-Feed, ROLLER-Assy-Hoppibg..................... 78
3.3.20 Frame Assy-Separation................................................................................ 79
3.3.21 Transfer Roller/TR Gear/TR Bearing............................................................ 80
3.3.22 EP lock shaft................................................................................................. 81
3.3.23 LEVER Assy- Out Sensor............................................................................. 82
3.3.24 Toner sensor lever........................................................................................ 83
3.3.25 Paper sensor lever ....................................................................................... 84
3.3.26 Inlet sensor lever .......................................................................................... 85
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3.3.27 Power supply unit ......................................................................................... 86
3.3.28 Lever-Paper end & Lever-Paper near end ................................................... 87
3.3.29 Guide Assy-Cassette (L) .............................................................................. 89
3.3.30 Guide Assy-Cassette (R).............................................................................. 90
3.3.31 Removing/Installing Duplex Unit................................................................... 92
3.3.32 Board-LEX .................................................................................................... 94
3.3.33 Connector (IMSA-9714N-14A) ..................................................................... 95
3.3.34 Photo Sensor................................................................................................ 96
3.3.35 SOLENOID Assy .......................................................................................... 97
3.3.36 Motor ............................................................................................................ 98
4. ADJUSTMENT............................................................................................. 99
4.1 Maintenance Modes And Functions........................................................................... 99
4.1.1 User maintenance mode .............................................................................. 101
4.1.2 System maintenance mode .......................................................................... 105
4.1.3 Engine maintenance mode........................................................................... 107
4.1.4 EEPROM initialization .................................................................................. 111
4.2 Adjustment When Replacing A Part........................................................................... 112
4.2.1 Resetting the fuser counter .......................................................................... 113
4.2.2 Destination setting ........................................................................................ 114
4.2.3 Setting of LED head drive time..................................................................... 115
115
5. PERIODIC MAINTENANCE ........................................................................ 118
5.1 Periodic Replacing Part ............................................................................................. 118
5.2 Cleaning ..................................................................................................................... 118
5.2.1 Cleaning of LED lens array........................................................................... 118
5.2.2 Cleaning the Plastic Film .............................................................................. 119
6. TROUBLESHOOTING PROCEDURES ...................................................... 120
6.1 Troubleshooting Tips ................................................................................................. 120
6.2 Points to Check before Correcting Image Problems .................................................. 120
6.3 Tips for Correcting Image Problems .......................................................................... 120
6.4 Preparation for Troubleshooting ................................................................................ 121
6.5 Troubleshooting Flow................................................................................................. 121
6.5.1 LCD status message/trouble list................................................................... 121
6.5.2 LCD message troubleshooting ..................................................................... 133
6.5.3 Image troubleshooting .................................................................................. 154
7. WIRING DIAGRAM..................................................................................... 165
7.1 Interconnect Signal Diagram...................................................................................... 165
7.2 PCB Layout ................................................................................................................ 167
7.3 Resistance Check ...................................................................................................... 170
7.4 Program/Font ROM Location ..................................................................................... 172
8. PARTS LIST ................................................................................................ 174
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APPENDIX A CENTRONICS PARALLEL INTERFACE .................................... 185
APPENDIX B RS-232C SERIAL INTERFACE ................................................... 189
APPENDIX C SECOND/ THIRD PAPER FEEDER MAINTENANCE ................. 191
1.
2.
3.
OUTLINE ................................................................................................................... 191
1.1
1.2
Functions ...................................................................................................... 191
Appearance and Parts Name ....................................................................... 191
Description of operartion ............................................................................................ 192
2.1
2.2
Driving Mechanism ....................................................................................... 192
Hopper Mechanism ...................................................................................... 194
PARTS REPLACEMENT ........................................................................................... 195
3.1
3.2
3.3
Precautions Concerning Parts Replacement................................................ 195
Parts Layout ................................................................................................. 197
Parts Replacement Methods ........................................................................ 198
3.3.1 Roller assy hopping, Roller assy feed ............................................. 199
3.3.2 Cover front assy .............................................................................. 200
3.3.3 Board-BBB ...................................................................................... 201
3.3.4 Lever paper end, Lever paper near end.......................................... 202
3.3.5 Motor ............................................................................................... 203
3.3.6 Connector (IMSA-9714N-14B), Connector (IMSA-9714N-14A) ...... 204
3.3.7 Frange pulley, pulley Idle, Mini pitch belt, Plate Earth shaft,
Gear double, Tray switch assy .................. 205
3.3.8 Roller feed ....................................................................................... 206
3.3.9 Bracket sub roller ............................................................................ 207
3.3.10 Frame side (L) assy ........................................................................ 208
3.3.11 Frame side (R) assy ........................................................................ 209
4.
TROUBLESHOOTING ............................................................................................... 210
4.1
4.2
4.3
Precautions Prior to the Troubleshooting ..................................................... 210
Preparations for the Troubleshooting ........................................................... 210
Troubleshooting Method............................................................................... 211
4.3.1 LCD Status Message List................................................................ 211
4.3.2 Troubleshooting Flow ...................................................................... 212
5.
6.
CONNECTION DIAGRAM ......................................................................................... 213
5.1
5.2
Interconnection Diagram .............................................................................. 213
PCB Layout .................................................................................................. 214
PARTS LIST .............................................................................................................. 215
APPENDIX D MULTI FEEDER MAINTENANCE................................................ 218
1.
2.
3.
OUTLINE ................................................................................................................... 218
1.1
1.2
Functions ...................................................................................................... 218
External View and Component Names......................................................... 218
MECHANISM DESCRIPTION ................................................................................... 219
2.1
2.2
General Mechanism ..................................................................................... 219
Hopper Mechanism ...................................................................................... 219
PARTS REPLACEMENT ........................................................................................... 220
3.1
3.2
Precautions Concerning Parts Replacement................................................ 220
Parts Layout ................................................................................................. 222
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3.3
Parts Replacement Methods ........................................................................ 223
3.3.1 Separator ........................................................................................ 224
3.3.2 AOLE-PCB ...................................................................................... 225
3.3.3 Square-shaped connector ............................................................... 226
3.3.4 Hopping Motor................................................................................. 227
3.3.5 Planet gear ...................................................................................... 228
3.3.6 Roller B ........................................................................................... 229
3.3.7 Roller A ........................................................................................... 230
3.3.8 Mini pitch belt & Feed roller............................................................. 231
4.
TROUBLESHOOTING ............................................................................................... 232
4.1
4.2
4.3
Precautions Prior to the Troubleshooting ..................................................... 232
Preparations for the Troubleshooting ........................................................... 232
Troubleshooting Method............................................................................... 232
4.3.1 LCD Status Message List................................................................ 233
4.3.2 Troubleshooting Flow ...................................................................... 234
5.
6.
CONNECTION DIAGRAM ......................................................................................... 235
5.1
5.2
Interconnection Diagram .............................................................................. 235
PCB Layout .................................................................................................. 235
PARTS LIST .............................................................................................................. 236
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1.
CONFIGURATION
1.1
System Configuration
OKIPAGE24DX / OKIPAGE24dx consists of control and engine blocks as the standard configu-
ration (See Figure 1-1.)
In addition, the following options are also available.
AC IN
Printer
120V
230V
Operator
panel
Face up
stacker
Face down
stacker
Printer
Mechanism
PC etc.
Power
supply
unit
Main control
*
I/D unit
Centronics
Parallel interface
(Bidirection)
*
DC Fan
Toner Cartridge
Front Feeder
LED head
RS-232C
Serial I/F
Motor-Main
Hopping motor
LAN etc.
OKI HSP
Paper tray
interface board
(Option)
Paper size
detection switch
Extension D-RAM
SIMM
(Option)
High Capacity
Second Paper
Feeder
Multi Feeder
(Option)
(Option)
High Capacity
Third Paper
Feeder
4MB/ 8MB
Flash ROM SIMM
(Option)
Duplex Unit
(Option)
*: Consumables
: Paper feeding
: Singal flow
: produced by third vender
Figure 1-1
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1.2
Printer Configuration
The printer unit consists of the following hardware components:
•
•
•
•
•
•
Electro-photographic processor
Paper feeder
Controller
Operator panel
Power supply unit
Duplex Unit
Figure 1-2 shows the printer unit configuration.
Plate-Shield
Cover-Side(I/F)
Frame-OP panel Assy
Stacker Assy
Cover-Frame
Face-up stacker Assy
Cover-Rear
Heat Assy
Cover-Side(R)
Contact Assy
Manual Feed Assy
Cover-Side(L) Assy
I/D Unit
Base Unit
Figure 1-2
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1.3
Optional Configuration
The options below are available for use with OKIPAGE24DX / OKIPAGE24dx. They are sold
separately from the printer unit.
(1) Multi Feeder
(2) Second/ Third Paper Feeder
(3) D-RAM SIMM module (72 pin SIMM, 16 MB/32 MB, EDO SIMM type)
See 7.2 (1) for where
to install.
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(4) Flash ROM module (72 pin SIMM, 4MB/8MB)
See 7.2 (1) for where
to install.
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1.4
Specification
(1) Type
Desk top
(2) External dimensions
(excludes protruding
Portion)
Height 13.0”
Width 14.4”
Depth 18.2”
(331 mm)
(366 mm)
(462 mm)
(3) Weight
21.3 kg (47 lbs)
(4) Development method
Exposure method
Dry electrophotography
LED stationary head
(5) Paper used
<Type>
• Standard paper
– Xerox 4200 (20 lbs)
• Application paper (manual face-up feed)
– Label
– Envelope
– OHP paper (Transparency)
<Size>
• Standard sizes
– Letter
– Legal
– Executive
– Envelope (without Duplex printing)
– A4
– A5 (without Duplex printing)
– B5 (without Duplex printing)
– A6 (without Duplex printing)
• Applicable sizes
– Width:
– Length:
3.4” to 8.5” (86 to 216 mm)
5.5” to 14” (140 to 355.6 mm)
<Thickness>
2
– Automatic feed: 16 to 28 lbs (60 to 105 g/m )
– Manual feed:
Label, OHP paper (transparency)
Envelope, 16~36 lb
(6) Printing speed
First print:
8 sec.
Continuous print:
20 sheets/min.
[at duplex print :10 sheets/min]
90 sec. [at room temperature 77˚F
(25˚C) and rated voltage (120 VAC)]
Warm-up time:
(7) Paper feed method
(8) Paper delivery method
(9) Resolution
Automatic feed or manual feed
Face down/face up
600 x 600 dots/inch (default)
600 x 1200 dots/inch
(10) Power input
120 VAC + 5.5%, –15% (ODA)
230 VAC + 10%
(11) Power consumption
Peak:
Approx. 820W
Typical Operation:
Idle:
Power save mode:
Approx. 350W
Approx. 95W
Approx. 25W
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(12) Temperature and humidity
In operation
Power off mode
During Storage
Unit
Temperature
50 - 90
32 - 110
(0 - 43)
14 - 110
°F
(°C)
(10 - 32)
(–10 - 43)
Humidity
20 - 80
10 - 90
10 - 90
%RH
77
80.4
°F
(°C)
Maximum wet
bulb temperature
(25)
(26.8)
Minimum difference
of wet and dry
bulb temperatures
35.6
(2)
35.6
(2)
°F
(°C)
Notes:
1. Storage conditions specified above apply to printers in packed condition.
2. Temperature and humidity must be in the range where no condensation occurs.
Temperature
(°C)
32
28
Operation range
10
Humidity (%)
20
80
(13) Noise
During operation:
At standby:
Power save mode:
55 dBA or less
45 dBA or less
43 dBA or less
(14) Consumables
Toner cartridge kit
6,000 pages(5% duty)*
Image drum cartridge 30,000 pages(at continuous Simplex printing)*
19,000 pages(3 page/job)(Simplex printing)*
* Simplex printing without Power Save.
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1.5
Safety Standards
1.5.1 Certification label
The safety certification label is affixed to the printer in the position below.
ex. ODA 120V
1.5.2 Warning label
The warning label is affixed to the portion which may cause an injury to human body.
Follow the instructions on warning labels during maintenance.
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2.
OPERATION DESCRIPTION
OKIPAGE24DX / OKIPAGE24dx consists of a main control board, a power supply unit (120V/
230V), apowersupplyunit(highvoltage), anoperatorpanelandanelectro-photographicprocess
mechanism.
The control board receives data through a host I/F, decodes and edits the data, and stores the
edited data in a memory. After completing edition of one page of data, it references the font
memory and generates bit data on the same memory. At the same time, it transfers the bit image
data to an LED head in units of one dot line.
The electro-photographic process mechanism prints data on paper.
The operator panel is used for operations and status display.
Fig. 2-1 shows an OKIPAGE24DX / OKIPAGE24dx block diagram.
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MAIN BOARD (BOARD-FFF)
FLASH ROM
Module
DUPLEX unit
PS ROM
MULTI feeder
2nd tray
3rd tray
PCL ROM
Paper end sensor
Extension
DRAM
Module
Paper near end sensor
LSI
Tray size
sensor board
BOARD PXC
DRAM
Clutch for
Regist Roller
CL
CL
TRANSISTOR
TRANSISTOR
Centronics
I/F
Driver
Receiver
Clutch for
Hopping Roller
Hopping Motor
Main Motor
DRIVER
DRIVER
M
M
RS232C
I/F
Driver
Receiver
CPU
OKI
HSP I/F
Board
LAN etc.
(Option)
Operator panel
LED HEAD
(Option)
EEPROM
3V 5V +8V
-8V 38V
Inlet sensor1
POWER
SUPPLY
UNIT
paper sensor
(AC120V/230V)
Inlet sensor2
Toner sensor
Outlet sensor
LSI
THERMISTOR
COVER
OPEN
SW
0V
Sub-CH
CH
SUB CHARGE ROLLER
CHARGE ROLLER
LOW VOLTAGE
GENERATION
CIRCUIT
DRIVER
TR
HIGH
VOLTAGE
CIRCUIT
TRANFER ROLLER
DEVELOPPING ROLLER
TONER SUPPLY ROLLER
CLEANING ROLLER
DRIVER
DB
FILTER CIRCUIT
SB
POWER
SUPPLY
UNIT
CB
(high voltage)
AC120V/230V
FAN
HEATOR
Figure 2-1 OKIPAGE24DX / OKIPAGE24dx block diagram
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2.1
Main Control Board (BOARD-FFF)
The control board consists of an one chip CPU,a LSI, program/font ROM's, DRAM's, an
EEPROM, a host interface circuit, and a mechanism driving circuit.
(1) One-chip CPU
The one-chip CPU is a custom CPU (32-bit internal bus, 32-bit external bus, 120-MHz clock)
that incorporates an RISC CPU and its peripheral devices, and has the following functions.
Built-in device
Function
Chip select controller
Bus controller
Control of peripheral LSI, ROM, DRAM and I/O device
DRAM controller
DMA controller
Transfer of data from Host I/F to RAM
Control of RS232C serial interface
Control of Centronics parallel interface
Serial interface controller
Parallel interface controller
Timer
Generation of various control timing
Monitoring of paper running and paper size
Serial I/O port
I/O port
Control of serial interface between controller and operator panel, EEPROM
Control of a serial interface between controller and power supply board
Inputting of various sensor signals
Outputting of various control signals
Motor driver controller
Control of Main Motor
Image processing circuit
Executes the image data process for printing.
(2) Program/font ROM's
•
PCL ROM
The program/font ROM's store the HP LJ5 emulation program and various types of font.
MASK ROM is used as the program/font ROM's.
•
PS ROM
The program/font ROM's store the Adobe PostScript Level 2 program and its fonts.
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(3) DRAM's
16-Megabyte DRAM (64 Mbit DRAM x 2) is mounted as resident memory to be used for storing
the program and providing various buffers. This DRAM is expandable up to 128 Mbytes by
adding expansion memory (SIMMs). This DRAM provides the areas shown in the following
table.
Memory area
Use
Memory capacity setting
Expansion RAM
Fixed
MENU
Fixed
System area
Working area used for the program
Stores converted bit image data
Raster buffer
Receive buffer
Enable
Enable
Expandable
Expandable
Stores temporarily the data received
from the host interface
Page buffer
Adds print information to the analyzed
receive data and stores the resulted
data.
–
Expandable
Stores soft fonts and macro data.
DLL/macro buffer
Font cache buffer
–
Expandable
Expandable
Stores bit map fonts generated by the
font rasterizer based on scalable font
information
Enable
(4) EEPROM
The EEPROM has a 16-kbit capacity and stores the following data.
•
•
•
Menu data
Various counter data (page counter, drum counter, fuser counter, etc.)
Adjustment parameters (LED head drive time, print start position, etc.)
(5) LSI (LZ9FF22)
Built in device
Serial I/O port
Function
Control of serial interface between controller and 2nd tray, 3rd tray, Multi purpose feeder
Control of serial interface between controller and Duplex unit
Motor driver controller Control of Hopping motor
I/O port
Inputting of various sensor signals
Outputting of various control signals
(6) Host interface
This printer has the following interfaces to the host.
•
•
•
Centronics bidirectional parallel interface
RS232C interface
OKI HSP interface (Option)
The single effective interface or the automatic interface select mode can be selected using
the menu. If the busy state of the printer continues for a long time period, the buffer near-
full control releases the busy status at constant intervals even if the host side is busy so not
to cause the interface time-out at the host side.
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(a) Centronics bidirectional parallel interface
This is an interface conforming to IEEE-1284 and provides either of unidirectional and
bidirectionalcommunicationsaccordingtoeachofthefollowingcommunicationmodes.
•
•
Compatibility mode
Unidirectional communications from the host to the printer.
Nibble mode
This mode transmits 4-bit wide data from the printer to the host. In this mode, each
1-byte data is transferred in the form of two nibbles using ERROR, BUSY, FAULT,
and SELECT signal leads. This mode can provide the bidirectional operation in
combination with the compatibility mode.
•
ECP mode
This mode provides the asynchronous bidirectional interface and transmits and
receives 1-byte data using eight data signal leads under the semi-duplex control by
the host.
When the power is turned on, the compatibility mode is automatically selected. The
change to another mode from the compatibility mode is made through negotiation.
(WhentheBIDIRECTIONissettoENABLEinthemenu,thischangecanbeperformed.)
(For the electrical/physical characteristics of this interface, see APPENDIX B)
(b) RS232C serial interface
The following protocol is supported for the serial interface conforming to EIA RS232C.
•
•
•
READY/BUSY (DTR HI or DTR LO)
X-ON/X-OFF
RBST X-ON
(For the electrical/ physical characteristics of the interface, see APPENDIX B)
(c) OKI HSP interface (Option)
This interface (slot) is an OKI unique universal interface that provides the platform to
connect various of boards (including those supplied by third venders) such as the LAN
connection expansion board and SCSI expansion board.
Any expansion boards compatible with this interface can be mounted on the Control
boardinthepiggybackboardfromwithoutmodifyingtheprogramattheprinterside. The
conceptual diagram of the OKI HSP interface is shown in Figure 2-2.
(For the electrical/physical characteristics of the OKI HSP interface, see the OKI HSP
interface technical manual.)
Printer
Network, etc.
Control board
LAN
expansion board
OKI HSP
interface
Figure 2-2
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(7) RAM module
•
Pin layout
1
36
37
72
•
Basic specificaton
- Type:
72 pins Standerd SIMM (32 bits buss width)
[Note : EDO SIMMtype]
60ns, 70ns, 80ns, 100ns
16 or 32MB
- Access time:
- Capacity:
- Parity:
None
(8) Flash ROM module
• Pin layout
Board-FSL or Board-FSL-2
(8MB)
(4MB)
1
36
37
72
•
Basic specificaton
- Type:
72 pins SIIM (32 bits buss width)
- Access time:
- Capacity:
90ns
4 or 8MB
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2.2
Power Supply Unit
The power supply unit consists of an AC filter circuit, a low voltage power supply circuit, a high
voltage power supply circuit, heater drive circuit, and photosensors.
(1) Low voltage power supply circuit
This circuit generates the following voltages.
Output voltage
+5 V
Use
Logic circuit supply voltage
+30 V
Motor and fan drive voltage and source voltage for high-voltage supply
Reset circuit, RS232C Line voltage
RS232C Line voltage
+8 V
–8 V
+3.8V
LED HEAD supply voltage
(2) High voltage power supply circuit
This circuit generates the following voltages necessary for electro-photographic processing
from+30Vaccordingtothecontrolsequencefromthecontrolboard. Whencoveropenstate
isdetected, +30Vsupplyisautomaticallyinterruptedtostopthesupplyofallthehigh-voltage
outputs.
Output
Sub-CH -15
Voltage
Use
Remarks
µA
Voltage applied to Sub charging roller
Voltage applied to charging roller
Voltage applied to developing roller
Voltage applied to toner supply roller
Voltage applied to transfer roller
Voltage applied to clearimng roller
CH
DB
SB
TR
CB
-1.30 KV
-220 V/+300 V
-450 V
+4 KV/-1.3 kV
+450 V/-1350V
Variable + Only
(3) Photosensor
The photosensor mounted on this power supply unit supervises the paper running state
during printing.
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Figure 2-3 shows the sensor layout diagram.
Paper running direction
Roller-exit
Roller-feeder (c)
Outlet sensor
Roller-Heat
Roller-transfer
Paper sensor
Roller-regist
Toner sensor
Inlet sensor 1
Inlet
sensor 2
Feed roller
Figure 2-3
Sensor
Function
Sensing state
Paper exists.
Inlet sensor 1
Detects the leading part of the paper and gives the supervision
timing for switching from hopping operation to feeding opera-
tion.
ON:
OFF: No paper exists.
Supervises the paper running state and the paper size accord-
ing to the paper reach time and running time.
Detects the form width.
Inlet sensor 2
Paper sensor
Outlet sensor
Toner low sensor
ON:
A4 or larger
OFF: Smaller than A4
Detects the leading part of the paper.
Supervises the paper running state.
ON:
Paper exists.
OFF: No paper exists.
Supervises the paper feed and size according to the time of
arrival to the sensor and the time of passage of paper.
ON:
Paper exists.
OFF: No paper exists.
Detects the lack of toner.
ON long:
OFF short:
Toner low exists
No Toner low exists
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2.3
Electro-photographic Process
2.3.1 Electro-photographic process mechanism
This mechanism prints image data from the control board on the paper by electro-photographic
process.
The Figure 2-4 shows the layout of the electro-photographic process mechanism.
Image Drum Unit
Heat Assy
LED HEAD
Hopping Motor
Front Hopping Roller
Face Up stacker
Front Feeder
Roller Assy-Feed
Duplex Unit
1st Hopping Roller
Motor-Main
Sub Roller
Figure 2-4
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(1) Image drum unit
Theimagedrumunitconsistsofasensitivedrum, acharger, andadeveloper. Theunitforms
a toner image on the sensitive drum, using a electrostatic latent image formed by the LED
head.
(2) Hopping motor
This motor is a pulse motor of 48 steps/rotation that is two-phase excited by the signal from
the control board. It drives the hopping roller of the first tray and the front feed roller via two
one-way clutches according to the direction of rotation.
(3) Motor-Main
This motor is a pulse motor of 72 steps/rotation that is two-phase excited by the signal from
the control board and is the main motor of this mechanism.
(4) Clutch (for Regist)
Swithes the transfer of power to Roller Regist if necessary depending on the power from
Motor-Main and instructions from the control PCB.
(5) Clutch (for Feed Roller)
Swithes the transfer of power to Feed Roller if necessary depending on the power from
Motor-Main and instructions from the control PCB.
(6) LED head
Image data for each dot line from the control board is received by the shift register and latch
register. The 4992 LEDs are driven to radiate the image data to the image drum.
(7) Fuser
The fuser consists of a heater, a heat roller, a thermistor and a thermostat.
An AC voltage from the power supply board is applied to the heater under the control of the
HEATON signal from the control board. This AC voltage heats the heater. The control board
supervises the heat roller temperature via the thermistor, and regulates the heater roller at
a predetermined temperature (185 °C : Normal paper, MEDIA TYPE = MEDIUM) by
connecting or disconnecting the AC voltage supply to the heater.
If the heater roller temperature rises abnormally, the thermostat of the heater voltage supply
circuit is activated to cut the AC voltage supply forcibly.
(8) Duplex Unit
Duplex Unit is a unit, which is installed on the printer unit for controlling both-sided printing
from the printer unit, intended for automatically reversing paper of which one side have been
already printed and re-feeding them to the unit for printing other side.
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2.3.2 Electro-photographic process
The electro-photographic processing is outlined below. Figure 2-5 shows the electro-photo-
graphic printing process.
1
2
Charging
The surface of the image drum is uniformly charged with negative charges by applying a
negative voltage to the charge roller.
Exposure
LightemittedfromtheLEDheadirradiatesthenegativelychargedsurfaceoftheimagedrum.
The surface potential of the irradiated part of the image drum surface is lowered, so that an
electrostatic latent image associated with the print image is formed.
3
4
Developing and toner recovery
When the negatively charged toner is brought into contact with the image drum, it is attracted
to the electrostatic latent image by static electricity, making the image visible.
At the same time, the residual toner on the image drum is attracted to the developing roller
by static electricity.
Transfer
Whenpaperisplacedovertheimagedrumsurfaceandapositivecharge,oppositeinpolarity
to the toner, is applied to the reverse side of the paper from the transfer roller, the toner is
attracted by the positive charge and is transferred to the paper. As a result, the toner image
formed on the image drum is transferred to the paper.
5
6
Temporary cleaning
Residual toner that remains on the image drum without being transferred is made uniform
by the cleaning roller and is temporarily attracted to the cleaning roller by static electricity.
Fusing
The toner image transferred to the paper is fused under heat and pressure.
Figure 2-6 shows an electro-photographc process timing chart.
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Figure 2-5
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OFF
ON
DMON-N (DRUM MOTOR)
OFF
ON
HMON-N (HOPPING MOTOR)
PWM1-P (CLUCH for hopping)
PWM2-P (CLUCH for REGISTRATION)
PSIN1-N (INLETSENSOR1)
WRSENSE-N (PAPER SENSOR)
PSOUT-N (OUTLET SENSOR)
STB-N (LED HEAD)
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
PAPER
PAPER TRAY
PRINTER
STACKER
SIMPLEX PRINTING TIMING CHART
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OFF
ON
DMON-N (DRUM MOTOR)
OFF
ON
HMON-N (HOPPING MOTOR)
PWM1-P CLUCH for hopping)
PWM2-P (CLUCH for REGISTRATION)
PSIN1-N (INLETSENSOR1)
WRSENSE-N (PAPER SENSOR)
PSOUT-N (OUTLET SENSOR)
STB-N (LED HEAD)
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
DUPMON-N (MAIN MOTOR in DUPLEX
UNIT)
ON
OFF
CLON-P (CLUCH in DUPLEX UNIT)
ON
OFF
SLON-P (SOLENOID in DUPLEX UNIT)
OFF
ON
DUPINSNS-N (INLET SENSOR in
DUPLEX UNIT)
OFF
ON
DUPRSNS-N (REAR SENSOR inDUPLEX
UNIT)
OFF
ON
DUPFSNS-N (FRONT SENSOR in
DUPLEX UNIT)
PRINTER/
DUPLEX UNIT
DUPLEX UNIT/
PRINTER
PAPER
PAPER
TRAY
PRINTER
DUPLEX UNIT
PRINTER
STACKER
DUPLEX PRINTING TIMING CHART
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2.4.3 Process operation descriptions
(1) Hopping
Hoppings from the first tray and the front feeder are effected by a single hopping motor in the
mechanism shown below.
Hopping Motor
Front Feeder
Duplex Unit
1st Tray
Turning the Hopping motor in direction a (CW) drives the 1st Hopping Roller. Turning the
Hopping motor in direction b (CCW) drives the Front Hopping Roller. Gear C and Hopping
roller bult in one-way bearing, so that turning each of these gears in reverse direction will not
be transmitted to the corresponding roller.
(CW)
Hopping Motor
a
Gear C
(One-way Clutch build-in )
(CCW)
b
Inlet Sensor
Front Hopping Roller
(One-way clutch build-in)
Roller-Regist
Planet Gear
Gear B
Sub Roller
Paper
1st Hopping Roller
(One-way clutch build-in)
Gear A
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(a) Hopping from the 1st Tray
1
Hopping
Rotating the Hopping Motor in direction a (CW) drives the 1st Hopping Roller and
theSubRollerthenpickupasheetofpaperinthe1sttray. TheMainMotorisalways
driven in direction c (CCW) on printing. After the paper fed approx. 30mm from the
tray, the Clutch (Feed) drives the Align Roller to advance the paper until the Inlet
Sensor turns on.
2
Aligning
After turning on the Inlet Sensor, the paper fed by a predetermined length and
choked up to the wedge space formed by the Regist Roller and the Pressure Roller
so that to align the skew of paper.
3
4
During the paper fed from the 1st tray, the build in clutch of Gear C is idled and not
to drive the Front Hopping Roller.
Feeding
After aligned the paper, the Hopping Motor turned off and stop hopping. Also the
Clutch (Feed) turned off and the Align Roller idled freely. Then Clutch (Regist)
turned on and the Regist Roller start to feed the paper. After the paper fed, the 1st
Hopping Roller is freely idled by releasing build in one way clutch, also the Sub
Roller is freely idled by escaping the Planet Gear.
5
Start printing. after the paper turns off the Write Sensor.
Pressure Roller
Regist Roller
Clutch (Regist)
Write Sensor
Inlet Sensor
c
Gear E
Clutch (Feed)
Gear D
Main Motor
Align Roller
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(b) Hopping from the Front Feeder
1
Hopping
The Front Feeder Plate is normally locked at the lower position by the Release
Lever and turn the Micro SW on. Top of the FF Cam which attached on end of the
Front Hopping Shaft is normally located Upper position (0 to 30 degree : home
position).RotatingtheHoppingMotorindirectionb(CCW)drivestheFrontHopping
Shaft and then attached the FF Cam and the Front Hopping Roller are driven.
During the FF Cam rotated approx. 60 degree, the Release Lever was pushed and
the Front Feeder Plate lifts up, then the Front Hopping Roller picks up a sheet of
paper. AttheFFCamrotatedapprox. 180degree, theFrontFeederPlateispushed
down and locked by the Release Lever again. At the FF Cam rotated approx. 275
degree the paper fed until the Inlet Sensor turns off.
2
Aligning
After turning on the Inlet Sensor, the paper fed by a predetermined length and
choked up to the wedge space formed by the Regist Roller and the Pressure Roller
so that to align the skew of paper.
3
4
DuringthepaperfedfromtheFrontFeederPlate, theonewayclutchof1stHopping
Roller is idled and not to drive the 1st Hopping Roller and the Sub Roller.
Feeding
Afteralignedthepaper,theHoppingMotorturnedoffandstophopping.ThenClutch
(Regist) turned on and the Regist Roller start to feed the paper. After the paper fed,
the Front Hopping Roller drives the Front Hopping Shaft and attached the FF Cam
with small idle torque of build in one way clutch and when comes into the Release
Lever, theonewayclutchisslippedandtheFFCamisstoppedattheupperposition
(home position). The Front Hopping Roller continuously idled up to the paper away.
5
Start printing. after the paper turns off the Write Sensor.
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Hopping Motor
Hopping Roller
(Front Feeder)
Gear C
(one way clutch build in)
b (CCW)
Pressure Roller
Front Feeder Plate
Paper
Inlet Sensor
Regist Roller
Paper
d
Gear A
Hopping Roller
Sub Roller
1st Hopping Gear
(One way Gear build in)
(home position)
0~30
°
60°
Front Hopping Shaft
Release Lever
180°
FF Cam
Micro SW
Front Feeder Plate
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Pressure Roller
Regist Roller
Write Sensor
Clutch (Regist)
Inlet Sensor
c
Gear E
Clutch (Feed)
Gear D
Main Motor
Align Roller
(2) Feeding
After the end of hopping, the pulse motor dedicated for driving the registration roller rotates
to drive the registration roller. The driven registration roller advances the paper until it comes
out of the registration roller.
When leading edge of the paper causes the paper sensor to turn on, the printing is started
synchronously.
Although Gear D is always rotating due to an all-time rotation of the main motor in direction
c, the regist roller would not rotate because the clutch (regist) is turned off.
After the completion of hopping, turn on the clutch (regist) to drive the regist roller. The regist
roller would drive a paper until the paper has passed.
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(3) Charging
ChargingiseffectedbyapplyingaDCminusvoltagetothechargerollerthatisincontactwith
the image drum surface.
Power
supply
Charge roller
Image drum
(4) Exposure
Light emitted from the LED head irradiates the image drum surface with negative charges.
The surface potential of the irradiated part of the image drum drops, thereby forming an
electrostatic latent image associated with the image signal.
LED head
Charge roller
LED head
Power
supply
Image drum
Paper
Image drum
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(5) Developing
Toner is attracted to the electrostatic latent image on the image drum surface to convert it
into a visible toner image. Developing takes place at the contact between the image drum
and the developing roller.
1 As the toner supply roller rotates while rubbing on the developing roller, a friction charge
is generated between the developing roller and the toner, allowing the toner to be
attractedtothedevelopingroller. (Thedevelopingrollersurfaceischargedpositiveand
the toner, negative.)
Doctor blade
Charge roller
Toner supply roller
Developing roller
Image drum
2 The toner attracted to the developing roller is scraped off by the doctor blade, forming
a thin coat of toner on the developing roller surface.
3 Toner is attracted to the exposed part (low-potential part) of the image drum at the
contact between the image drum and the developing roller, making the electrostatic
latent image visible.
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(6) Transfer
The transfer roller is composed of conductive sponge material and is designed to make the
image drum surface and the paper closely into contact.
Paper is placed over the image drum surface, and a positive charge, opposite in polarity to
the toner, is applied to the paper from its reverse side.
The application of a high positive voltage from the power supply to the transfer roller causes
the positive charge induced to the transfer roller surface to be transferred to the paper at the
contact between the transfer roller and the paper. As a results, toner charged negative that
is attracted to the image drum surface is transferred to the upper side of the paper by the
positive charge on the lower side of the paper.
Image drum
Paper
Transfer roller
Power
supply
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(7) Fusing
After the end of the transfer, the unfused toner image is fused on the paper under heat and
pressure as it passes between the heater roller and the back-up roller. The heater roller with
a Teflon coating incorporates a 750W heater (Halogen lamp), which heats the heat roller.
A thermistor which is in contact with the heater roller regulates the heater roller at a
predeterminedtemperature(about180~200°C). Asafetythermostatcutsoffvoltagesupply
to the heater by opening the thermostat in the event of abnormal temperature rises.
The back-up roller is held under a pressure of 5 kg from the pressure spring at each side.
Heater
Thermistor
Separation Claw
Heater Roller
Paper
Roller-BK
Pressure Spring
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(8) Cleaning
After the end of the transfer, residual toner on the image drum is attracted to the cleaning
roller temporarily by static electricity to clean the image drum surface.
Image Drum
Cleaning Roller
Power
Supply
Transfer Roller
(9) Cleaning of rollers
The charge roller, transfer roller and cleaning roller are cleaned in the following cases:
•
•
•
In warming up at power-on time
In warming up after the cover is opened and closed
When the number of accumulated sheets is 10 or more and the printout operation ends
Changes in bias voltage applied to each roller move adhesive toner from the roller to the
image drum and return it to the developer.
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(10) Duplex unit
When the Duplex Unit receives an instruction for both-sided printing from the unit, the
separatorwillbeopenedbytheactionofasolenoidwithinDuplexandtheroutewillbeshifted
to the one into the Duplex after one-sided printing of papers, which are fed from the tray, are
completed.
At this time, as the roller (1) rotates in the direction of arrow A, a sheet is retracted in the rear
of the cassette. And then, a given time later after the edge of the sheet passes through the
IN SNS (DUP), the roller will reverse and the roller (1) rotates in the derection of arrow B and
sending out the paper into the Duplex. After that, it passes though the roller (2) and (3), and
is fed again into the unit, given another-sided printing and ejected.
Separator
IN SNS
(DUP)
Roller (2)
Roller (1)
Roller (3)
Front
Rear
Sensor
Sensor
<In retracting paper>
<In sending out paper>
B
A
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2.3.4 Revision of LED Head Illumination
An LED correcting head, which is capable of correcting the illumination of the LED for each dot,
isbeingusedinthisprinter. LEDilluminationcorrectionfunctionof16stepsiscarriedoutbyusing
an EEPROM which is installed in the LSI that maintains the LED illumination correction values,
and an LED correction drivers together as a pair.
The LED correcting head consists of the correction control LSI , LED drivers , and an LED array.
The block diagram of the LED correcting head is shown below.
(1) Both sides wire-bonding head
Correction Control
LSI
EEPROM
STRB4-N
STRB3-N
DATA 3
DATA 2
LED Driver
LED Driver
LED Array
LOAD
From
CPU
LED LED LED LED LED LED LED
CLOCK
STRB2-N
STRB1-N
DATA 1
LED Driver
LED Driver
DATA 0
In OKIPAGE 20/ OKIPAGE 20n, the correction control of LED head is excuted direction by CPU.
The procedure is as follows
(i) LED head is set to the correction control read mode and all correction data stored in
EEPROM within the correction control LSI are read by CPU, and stored temporarily in
the memory.
(ii) Next,LEDheadissettothecorrectioncontroldirectmodeandthecorrectiondatastored
temporarily in the memory is transferred directly to the LED driver.
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(i) Read of correction data
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(ii) Transfer of correction data to head driver correction data
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(2) One side wire-bonding head
Correction Control
LSI
EEPROM
LED Array
LED LED LED LED LED LED LED
DATA 3
DATA 2
DATA 1
DATA 0
CLOCK
LOAD
STRB4-N
STRB3-N
STRB2-N
STRB1-N
LED Driver
LED Driver
From
CPU
(i) LED head is set to the correction control read mode and all correction data stored in
EEPROM within the correction control LSI are read by CPU, and stored temporarily in
the memory.
(ii) Next,LEDheadissettothecorrectioncontroldirectmodeandthecorrectiondatastored
temporarily in the memory is transferred directly to the LED driver.
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(i) Read of correction data
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(ii) Transfer of correction data to head driver correction data
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The LED driver corrects the LED illumination by controlling the LED current. The LED illumination
can be set in 16 steps, with 7 steps in the direction of illumination increase in relation to the
standard value, and 8 steps in the direction of decrease. For this reason, the LED correction data
is a 4-bit data for each dot.
The relationship between the LED correction data and LED current correction steps with the LED
driver used in an LED head is shown below.
LED Correction Data
Corretion Data
Correction Correction
Step
Mode
msb b3
b2
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
b1
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
lsb b0
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
+16%
+14%
+12%
+10%
+8%
+6%
+4%
+2%
0%
↑
↑
Correction by
increasing
illumination
↑
↑
↑
No correction
-2%
↓
-4%
↓
Correction by
decreasing
illumination
↓
-6%
-8%
-10%
-12%
-14%
↓
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The printing operation timing chart is shown below.
Normal Mode Printing Timing Chart
CLOCK
LOAD
DATA3~0
STRB1-N
STRB2-N
STRB3-N
STRB4-N
First line printing data sent
Second line printing data sent
First line printing
Theprintingoperationiscarriedoutinnormalmode. Underordinarycircumstancessuchaswhen
the power is turned on or when LOAD signal level is low, the normal mode is enabled.
The printing operation is carried out in the following sequence. First, the printing data DATA3
through DATA0 are stored, sequentially shifted, in the shift registers of the LED drivers, by the
printing data synchronous clock, CLOCK. Then the printing data stored in shift registers are
latched by the high level pulse of LOAD. The latched printing data turns the LEDs on by STRB1-
N through STRB4-N and actuates printing.
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2.4
Paper Jam Detection
The paper jam detection function supervises the paper state at power-on time and during printing.
In the event that the following state occurs, this function interrupts the printing process. If any of
the following errors is presented, recovery printing will be performed by removing the jammed
paper (namely by opening the upper cover, removing the jammed paper and closing the upper
cover).
Error
Cause of error
Paper input jam
• At power-on time, the paper is placed at the inlet sensor.
• After hopping operation is attempted three times, the leading part of the paper does not
reach the inlet sensor.
Paper feed jam
• At power-on time, the paper is placed at the paper sensor.
• The leading part of the paper does not reach the paper sensor within a predetermined
distance after the paper has reached the inlet sensor.
• The traiding part of the paper does not pass over the paper sensor within a predeter-
mined distance after the leading edge of the paper has passed over the paper sensor.
• The leading part of paper does not reach the outlet sensor within a predetermined
distance after the paper has reached the paper sensor.
Paper exit jam
• At power-on time, the paper is placed on the outlet sensor.
• The paper does not pass over the outlet sensor within a predetermined after the leading
part of the paper has reached the outlet sensor.
• Thepapersizecheckwiththemanualfeedspecifiedconsidersthereferencesizeasfree
size.
Paper size error
• The size of the paper is supervised by the inlet sensors 1. It is detected that the paper
does not pass over the inlet sensor 1 within predetermined range of distance.
• The inlet sensor 2 detects that the size of the loaded paper is A4 or larger, or smaller
than A4. The detected paper size differs from the paper size set by command or menu.
• Thepapersizecheckwiththemanualfeedspecifiedconsidersthereferencesizeasfree
size.
Duplex input jam re- • Informs that a jam occurs in feeding papers to the Duplex Unit.
move the paper
Duplex feed jam1 re- • Informs that a jam occurs in retracting papers into the reverse roller within the Duplex
move the paper
Unit.
Duplex feed jam2 re- • Informs that a jam occurs in reversing papers in the reverse roller within the Duplex Unit.
move the paper
Duplex feed jam3 re- • Informs that a jam occurs in impinge-feeding papers within the Duplex Unit.
move the paper
Duplex open jam re- • Informs that the 1st tray is pulled out in paper-remaining state when feeding papers
move the paper
within the Duplex.
Error 83
• Informs that an I/F time-out occurs between the printer and Duplex.
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2.5
Cover Open
When the stacker cover is opened, the cover open microswitch on the Power Supply Unit (High
voltage) is turned off to cut the supply of +30V to the high voltage power supply circuit. As a result,
all high-voltage outputs are interrupted. At the same time, the CVOPN signal is sent to the control
board to notify it of the off state of the microswitch, and the Main board performs the cover open
processing.
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2.6
Toner Low Detection
•
Composition
The device consists of the stirring gear which rotates at a constant rate, the stirring bar and
the magnet on the stirring bar. The stirring bar rotates through the link on the protrusion in
the stirring gear.
Magnet
Protrusion
Stirring Bar
Operation
Stirring Gear
•
Toner Low is detected by monitoring the time interval of the encounter of the magnet set on
the sensor lever and the magnet on the stirring bar.
Stirring Gear Section
Operation during toner full state
Stirring Bar
•
•
The stirring bar rotates due to the interlocking
with the stirring gear.
Even when the magnet on the stirring bar
reaches the maximum height, since the other
side is being dipped in the toner, the stirring
bar is pushed by the stirring gear.
Sensor Lever
Toner Sensor
Operation during toner low state
Stirring Bar
•
When the stirring bar reaches the maximum
height, since there is no resistance provided
by the toner on the other side, it falls to the
minimum height due to its own weight. Be-
cause of this, the time interval during which it
is in encounter with the magnet of the sensor
lever becomes long. By monitoring this time
interval, toner low can be detected.
Sensor Lever
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TONER FULL state
TNRSNS
t1 < 2.727/4
t1
2.727 SEC.
TONER LOW state
TNRSNS
t1
t1 > 2.727/4
2.727 SEC.
•
•
•
When the toner low state is detected 2 times consecutively, Toner Low is established.
When the toner full state is detected 2 times consecutively, Toner Low is cancelled.
When there is no change with the toner sensor for 2 cycles (2.727 sec. x 2) or more, then the
Toner Sensor Alarm is activated.
•
The toner sensor is not monitored while the drum motor is in halt.
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2.7
2.8
Stacker-full Detection
Thesensor(interlockedwiththelever)atthepaperoutlettothestackerdetectsastacker-fullstate
(about 250 sheets) and stops printing of the ensuing pages.
Page Size Detection
The four tab pieces are driven according to the setting position of the paper guide through the cam
interlocked with the paper guide of the paper cassette.
When the paper cassette is inserted into the printer, the state of the tab pieces is detected by the
microswitch to recognize the paper size.
State of Microswitches
Paper size
SW1
SW2
SW3
SW4
0
0
0
1
1
1
1
1
1
1
0
1
0
1
1
0
1
0
1
1
1
0
0
0
1
1
1
0
1
1
0
1
Letter
Executive
A4
Legal 14
Legal 13
B5
A5
A6 (Not available)
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3.
PARTS REPLACEMENT
The section explains the procedures for replacement of parts, assemblies, and units in the field.
Only the removal procedures are explained here. Reverse the procedure for the installation.
3.1
Precautions for Parts Replacement
(1) Before starting parts replacement, remove the AC cable and interface cable.
(a) Remove the AC cable in the following procedure:
i) Turn off ("o") the power switch of the printer
ii) Disconnect the AC inlet plug of the AC cable from the AC receptacle.
iii) Disconnect the AC cable and interface cable from the printer.
(b) Reconnect the printer in the following procedure.
i) Connect the AC cable and interface cable to the printer.
ii) Connect the AC inlet plug to the AC receptacle.
iii) Turn on ("l") the power switch of the printer.
Disconnect
OFF
ON
Connect
(2) Do not try disassembly as long as the printer is operating normally.
(3) Do not remove unnecessary parts: try to keep disassembly to a minimum.
(4) Use specified service tools.
(5) When disassembling, follow the determined sequence. Otherwise, parts may be damaged.
(6) Since screws, collars and other small parts are likely to be lost, they should temporarily be
attached to the orginal positions.
(7) WhenhandlingICssuchasmicroprocessors,ROMandRAM,andcircuitboards,donotwear
gloves that are likely to generate static electricity.
(8) Do not place printed circuit boards directly on the equipment or floor.
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[Service Tools]
Table 3-1 shows the tools required for field replacement of printed circuit boards and units.
Table 3-1 Service Tools
No.
1
Service Tools
Q' ty
1
Place of use
Remarks
No. 1-100 Philips
screwdriver
2~2.5 mm screws
2
3
4
5
6
No. 2-200 Philips
screwdriver, Magnetized
1
1
1
3~5 mm screws
No. 3-100 screwdriver
No. 5-200 screwdriver
Digital multimeter
Pliers
1
1
Handy cleaner
7
8
1
1
Cleans LED head
LED Head cleaner
P/N 4PB4083-2248P1
Connector remover
P/N 4PP4076-5395P1
Disconnect connector
9
1
1
For removing
ROLLER-Transfer
10
Holder-TR Eject
P/N 40596701
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3.2
Parts Layout
Plate-Shield
Cover-Side(I/F)
Frame-OP panel Assy
Face-up stacker Assy
Cover-Frame
ROLLER-Transfer
Cover-Rear
Main Control Board
(Board-FFF)
Cover-Side(R)
Contact Assy
Manual Feed Assy
Cover-Side(L) Assy
Base Unit
CASE Assy-Cassette
Figure 3-1
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Feed Unit-FRONT
Toner Cartridge
(Type 7)
ID Unit
(Type 7)
HEAT-Assy
ROLLER
Assy-Feed
Motor-Main
FRAME-Main
GUIDE-Assy-Eject
LED HEAD
DC Fan Motor
Stacker Cover
Figure 3-2
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Power Supply Unit
(120V/230V)
FRAME Assy-Hopping
Power Supply Unit
(High Voltage)
ROLLER Assy-Feed
FILM-Insulation
Board PXC
GUIDE Assy-Cassette(L)
GUIDE
Assy-Cassette(R)
PLATE-Bottom
Figure 3-3
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Photo sensor
Solenoid Assy
Control board
(Board-LEX)
Motor
Connector
(IMSA-9714N-14A)
Photo sensor
Figure 3-4
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3.3
How to Change Parts
Thissectionexplainshowtochangepartsandassembliesappearinginthedisassemblydiagram
below.
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3.3.1 Face -up Stacker Assy
(1) Turn off the AC Power Switch and unplug the AC Power Cord from the outlet.
(2) Disconnect the Interface Cable 1.
(3) Open the face-up stacker assy 2, unhook the right and left projections, and then remove
the face-up stacker assy 2.
2
1
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3.3.2 Contact Assy
(1) Open the stacker assy 1and unscrew 2 screw 2to remove the assy -side (L)3.
(2) Unscrew 2 screws 4and remove the plate (contact) 5and contact Assy 6.
Note! Don’t deform the electrode plates of the contact assy 6.
2
1
3
Unlock this part before removing
6
6
5
4
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3.3.3 DC Fan Motor
(1) Remove the cover assy-side (L). [See 3.3.2 (1)]
(2) Remove the DC fan motor 1by pulling out the connector of DC fan motor 1.
1
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3.3.4 OP Panel Assy
(1) Disconnect the Interface cable 1.
(2) Open the stacker assy 2, unscrew 2 screws 3and remove the cover side (I/F) 4.
(3) Remove 2 screws 5and flexible cable 6 to remove the operator panel assy 7.
5
7
6
3
4
1
2
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3.3.5 Board-FFF
(1) Remove the operator panel assy and cover side (I/F). [See 3.3.4]
(2) Unscrew 2 screws 1and remove the cover side (R) 2.
(3) Unscrew 16 screws 3and remove plate-shield 4.
(4) Unscrew 3 screws 5and 2 screws 6, unplug all the connectors 7, and remove Board-FFF
8.
4
7
5
6
3
7
5
5
7
8
1
2
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3.3.6 Stacker Assy, Damper Arm, Cover Rear
(1) Remove the face-up stacker assy. [See 3.3.1]
(2) Remove the cover-side (L). [See 3.3.2 (1)]
(3) Remove the OP panel assy. [See 3.3.4]
(4) Remove the Board-FFF. [See 3.3.5]
(5) Loosen 2 screws, unlock the both sides latches and remove the cover rear A.
(6) Unscrew 2 screws 1and cover frame 2.
(7) Unscrew 3 screws 3and remove the plate assy-side (R) 4.
(8) Remove the lever back up release 5and unlock the engagement of the projection on the
right side of gear at the right side of stacker cover.
(9) Remove a screw 6and washer 7, and then remove the stacker assy 8.
(At this time, the damper arm 9can also be detached simultaneously.)
8
5
1
2
A
6
7
9
3
0
4
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3.3.7 Sensor Stacker Full
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the Stacker assy. [See 3.3.6]
(3) Remove four screws 1. Remove stacker mount 2by releasing the tabs at position 2A .
(4) Remove Sensor stacker full 3by releasing speading the plastic tabs on each side of sensor
Assy 3and lifting switch from cover.
1
2A
2
2A
1
3
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3.3.8 Cable cover (guide film)
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the stacker Assy. [See 3.3.6]
(3) Unscrew 2 screws 1release tabs at portion 1A . Remove cable cover 2, guide film 3.
1A
2
1
3
Note:
Use care when replacing cable cover. Do not pitch, crimp, or cut cables or
protective sheet.
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3.3.9 Damper
(1) Remove the damper arm. [See 3.3.6]
(2) Unscrew 2 screws 1and remove the two damper 2.
1
2
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3.3.10 Feeder Unit-Front
(1) Open the manual feed assy 1and release both right and left parts by pulling out the
engagements on the lower part.
(2) Stand the manual feed assy 1on end and unhook the engagements with both right and left
manual feed hopper stays.
(3) Remove the OP panel assy. [See 3.3.4]
(4) Unscrew 5 screws 2and remove the feeder unit-front 3.
2
2
2
3
1
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3.3.11 Roller Assy-Regist
(1) Remove the feeder unit-front. [See 3.3.10]
(2) Remove an E-ring 3, gear assy-clutch 4, and four screws 1in this order, and lifting out the
roller assy-regist 2.
1
2
3
1
4
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3.3.12 Motor -Main
(1) Remove the stacker assy. [See 3.3.6]
(2) Remove the feeder unit-front. [See 3.3.10]
(At this point, the manual feed assy has not to be removed.)
(3) Remove the DC fan motor. [See 3.3.3]
(4) Remove the contact assy. [See 3.3.2]
(5) Remove the plate-FG (F) 1.
(6) Remove the TR gear 2and roller transfer 3.(Use Holder-TR Eject Ffor the removal.)
(7) Unscrew 7 screws 4and remove the main frame 5.
(8) Unlock latches at two points of the lever back up release 6and pull out it in right direction.
(9) Unhook the EP lock spring 7and remove the EP lock lever 8.
(10) Take off the E ring 9and remove the plate-FG (1st ) 0and gear assy-clutch A.
(11) Unlock 2 latches to remove the motor assy-main Band idle gear C.
(12) Unscrew 2 screws Dand remove the motor -main E.
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F
2
3
8
Latch
5
7
View A
6
3
2
E
4
4
4
4
D
B
View A
D
C
0
9
A
4
4
1
5
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3.3.13 Guide Assy-Eject
(1) Remove the lever back up release. [See 3.3.12(8)]
(But the roller transfer/feeder unit front/plate-FG have not be removed)
(2) Loosen 2 screws 1, unlock the both side’s latches and remove the cover rear 2. [See 3.3.6
(5)]
(3) Unlock the latches on both sides of the guide assy-eject 3and lifting it out.
2
1
1
3
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3.3.14 Heat Assy
(1) Remove the cover assy-side (L). [See 3.3.2 (1)]
(2) Unplug the connectors 1, 2.
(3) Unscrew 4 screws 3and remove the heat assy 4in the direction of the arrow by lifting the
right side first.
Note !
• As the heat assy 4becomes high temperature soon after the power is turned
off, start the work after it cools off sufficiently.
• Carry out a reset of the counter after the replacement. (See Section 4.2)
3
3
4
2
1
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3.3.15 Roller feed (C)
(1) Remove the guide assy-eject. (See 3.3.13)
(But roller transfer/feeder unit-front/plate-FG(F) have not be removed)
(2) Remove the gear roller (C) 1and bush 2, warp (a) part of the plate-FG (BK) 3. Take off
the carrier bearing 4and remove the roller feed (c) 5in the direction of the arrow.
Note !
Be careful not to deform (a) part of the plate-FG (BK) 3.
1
2
5
(a)
3
4
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3.3.16 Roller Assy-BK
(1) Remove the heat Assy. [See 3.3.14]
(2) Remove the lever back up release. [See 3.3.12 (8)]
(3) Unlock the engagement with the plate-FG (BK) 1and lift out the roller heat assy 2.
2
1
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3.3.17 Roller Assy-Feed
(1) Remove the feeder unit -front. [See 3.3.10]
(2) Remove the roller assy-feed 1by unlocking a latch.
1
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3.3.18 LED Head
(1) Remove the stacker assy 1. [See 3.3.6]
(2) Unplug the PC connector 2and 2 LED cables 3from the LED head 4.
(3) Open the hooks of the cover stacker 1 in the direction of the arrow and remove the LED head
4.
(4) Pull out the head spring 5from the post.
Note: Don't remove two LED cable 3from the PC connector 2.
1
2
5
3
4
5
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3.3.19 Paper cassette, ROLLER Ass-Feed, ROLLER-Assy-Hoppibg
(1) Pull out the case assy -cassette 1from the printer.
(2) Remove the ROLLER Ass-Feed 2and remove the ROLLER-Assy-Hopping 3.
3
2
1
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3.3.20 Frame Assy-Separation
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Pull out the case Assy-Cassette 1from the printer.[See 3.3.19(1)]
(3) Release two locks and remove frame assy-separation 2. (At this time, coil spring 3is also
remove. Be careful not to lose this spring.)
2
3
1
Insert 1so as to pass the both arms of 1
behind two latches inside the alcove of 2unit.
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3.3.21 Transfer Roller/TR Gear/TR Bearing
(1) Open the stacker cover .
(2) Unlock the lock by lifting the TR gear 1to remove the TR gear 1and roller transfer 2.
(Use the Holder-TR Eject 5for the removal.)
Note !
Don’t place the removed roller transfer directly on the desk and so on. When
placing it, lay a paper and the like under it.
(3) Remove right and left, 2 bearings 3from the frame-main by sliding them inside while
pushing them. At this time, 2 transfer springs R 4would be detached simultaneously.
5
1
1
2
3
2
4
2
3
4
1
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3.3.22 EP lock shaft
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove Frame-Main [See.3.3.12(7)]
(3) Remove screw 1. Turn EP lock lever (L) Assy 2in the direction of arrow A .
(4) Remove spring 3.
(5) Drop EP lock shaft 4down and turn in the direction of arrows B and remove it.
4
B
A
3
1
2
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3.3.23 LEVER Assy- Out Sensor
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the frame main [See 3.3.12(7)]
(3) PresstheclamppartofLEVERAssy.-OutSensor1. RemovetheLEVERAssy.-OutSensor
1by pushing it upward from the lower side.
1
1
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3.3.24 Toner sensor lever
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the frame main [See 3.3.12(7)]
(3) Squeeze the clamp part of toner sensor lever 1and remove the toner sensor lever 1by
pushing it upward from the lower side.
1
1
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3.3.25 Paper sensor lever
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the frame main [See 3.3.12(7)]
(3) Squeeze the clamp part of the paper sensor lever 1and remove the paper sensor lever 1
by pushing it upward from the lower side.
1
1
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3.3.26 Inlet sensor lever
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the frame main [See 3.3.12(7)]
(3) Squeeze the clamp part of two inlet sensor levers 1. Remove the inlet sensor levers 1by
pushing them downward.
1
1
1
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3.3.27 Power supply unit
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the frame main [See 3.3.12(7)]
(3) Unscrew 2 screws 1and remove the BRACKET-AC 2.
(4) Unscrew 10 screws 3and remove the connector 6remove the Power supply unit [AC-
DC(120/230V)] 4and Power supply unit (High voltage) 5.
3
3
3
6
3
2
4
5
1
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3.3.28 Lever-Paper end & Lever-Paper near end
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove the frame main [See 3.3.12(7)]
(3) Remove screw 1and then remove the PLATE-Base 2.
(4) Remove two Spacer-Cord(KGPS-5RF) 4and then remove FILM-Insulation 4.
(5) Remove four screws 5and then remove the FRAME ASS-Hopping 6.
(6) Remove the GEAR-Z58 9and GEAR-Z42 8.
(At this time, the ADF Bearing 0can also be detached simultaneously.)
(7) RemovetheGEAR-Z38 D, ADFBearingE, ROLLER-GuideFandSHAFTHoppingGand
Bracket-Sub roller R.
(At this time, the Kock Pin Hcan also be detached simultaneously.)
(8) Remove two screws 7and then remove the SPRING-Release Aand then remove the
LEVER-Sub roller Band PLATE-Hopping C.
(9) Remove the GEAR-Planet(Z28) I, Plate-Planet J, BRACKET-Spring (Sub) Kand
SPRING-Sub ROLLER L.
(10) Press the clamp part of Lever-Paper end Mand Lever-Paper near end N. Remove the
Lever-Paper end Mand Lever-Paper near end Nby pushing it upward from the FRAME
Hopping R.
(11) Remove the Connection Cord-Wire Oand TR-23-11-14 R CORE Ptogether.
(12) Remove two Photo Sensor Q.
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5
8
6
7
5
4
C
1
9
0
P
O
H
G
A
Q
B
M
Q
K
2
N
3
L
R
R
F
E
J
F
D
I
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3.3.29 Guide Assy-Cassette (L)
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove Frame Main [See 3.3.12(7)]
(3) Remove PLATE-Base and FRAME Assy Hopping [See 3.3.28 (5)]
(4) Unscrew two screw 1and then remove Guid Assy-Cassette (L) 2.
(5) Remove SPRING-Sheet 3and then remove LINK-Sheet 4and pull block 5.
(Pay attention the direction of hook of SPRING-Sheet 3.)
(6) Remove spring 6and then remove cassette stopper 7.
(7) Remove screw 8from LINK-Sheet 4and then remove link support 9and Roller-link 0.
(8) Remove Earth Plate L Aand Plate-Earth (link) B.
A
B
5
3
2
7
6
8
0
9
4
1
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3.3.30 Guide Assy-Cassette (R)
(1) Turn the AC power switch off. Unplug the AC power cord from the outlet.
(2) Remove Frame Main [See 3.3.12(7)]
(3) Remove PLATE-Base and FRAME Assy Hopping [See 3.3.28 (5)]
(4) Unscrew two screw 1and then remove Guid Assy-Cassette (R) 2.
(5) Remove SPRING-Sheet 3and then remove LINK Sheet 4and pull block 5.
(Pay attention the direction of hook of SPRING-Sheet 3.)
(6) Remove spring 6and then remove cassette stopper 7.
(7) Remove screw 8from LINK-Sheet 4and then remove link support 9and Roller-link 0.
(8) Unscrew two screws Aand remove the Square shaped connector (176496-1) Band
Nylon Connector Cord Cand TR-23-11-R CORE D.
(9) Unscrew two screws Eand remove the two Plate Earth (Bottom) F.
(10) Unscrew two screws Gand remove the Square shaped connector (5-176496-1) Hand
Connection Cord Wire Iand TR-23-11-R CORE J.
(11) Unscrew a screw Kand remove the Detector spring L.
(12) Unscrew a screw Mand remove the Board PXC N.
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E
E
F
F
5
H
G
J
I
N
2
6
D
M
7
L
3
K
C
B
4
9
8
0
A
1
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3.3.31 Removing/Installing Duplex Unit
Removing Duplex Unit
(1) Power Off and remove the Paper-Cassette from 1st tray.
(2) Remove the LEVER-Release (Dup) from the boss of the Hopping Frame.
Boss
B
LEVER-Release (Dup)
B
Release
Release
LEVER-Release (Dup)
B - B View
(3) Rotate the LEVER-Lock (Dup) in the direction of the arrow to release the Lock.
Connector
LEVER-Lock (Dup)
Turn
LEVER-Lock (Dup)
(4) Pull the Duplex Unit out of the unit.
Printer
Groove
Duplex Unit
Connector
LEVER-Release (Dup)
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Installing Duplex Unit
(1) Hold the LEVER-Lock (Dup) in horizontal lock position.
Then insert the Duplex Unit along the groove, up to accord both rear faces between printer
and Duplex Unit.
Printer
Groove
Note: Before setting it to the
unit, make sure that the
LEVER-Release (Dup) is
locked at the angle as
Duplex Unit
shown Locking point
Connector
Locking point
LEVER-Release (Dup)
LEVER-Release (Dup)
Note: Printer and Duplex Unit will connect automatically with built-in connector.
(2) Lock the Duplex Unit to the printer by turning the LEVER-Lock (Dup) to the next locking
position as below.
Connector
LEVER-Lock (Dup)
(3) From front side of printer, snap fit LEVER-Release (Dup) into the boss in Hopping Frame.
Boss
B
B
Snap Fit
into Boss
LEVER-Release (Dup)
Snap Fit
Snap Fit
LEVER-Release (Dup)
B - B View
(4) After installing Duplex Unit, put back the Paper Cassette into 1st Tray.
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3.3.32 Board-LEX
(1) Remove two LEVER-Lock (DUP) 1by rotating them in the arrow direction.
(2) Unscrews five screws 2to remove the bracket 3.
(3) Unlatch all the nails and unplug all the connectors 4to remove the Board-LEX 5.
[Note : When installing the Board-LEX, install it, positioning earth plate over the PCB.]
2
2
3
1
PLATE-Earth (F/R)
3
5
5
4
1
4
1
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3.3.33 Connector (IMSA-9714N-14A)
(1) Remove two LEVER-Release (DUP) 1.
(2) Take away two SPRING-Support 2to remove FRAME-MAIN (DUP) 3.
(Remove the FRAME-MAIN (DUP) by lifting in up from A side)
(3) Unscrew two screws 4to unplug the Connector (IMSA-9714N-14A) 5.
1
3
4
A
5
2
4
2
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3.3.34 Photo Sensor
(1) Remove the Frame-Main (DUP) (see section 3.3.2).
(2) Release the lock to remove two SPRING-Lock (frame) 1and two LEVER-Lock Assy 2.
(3) Pull out four SHAFT-Pinch 3and remove four ROLLER-Pinch 4and eight SPRING-Pinch
(u) 5.
(4) Release the lock to remove two BRACKET-Pinch 6, and two SPRING-Pinch(R) 9.
(5) Release the lock to remove LEVER Sensor (D-IN) 0and SPRING-Sensor A.
(6) Unplug the Connection Code-Wire Band remove Photo Sensor C.
5
4
3
5
5
6
8
4
3
5
6
8
2
9
1
7
9
1
7
6
8
Film-Pinch (R)
C
B
7
A
0
Note : It should not become a state such as of dotted line
from the results of installation.
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3.3.35 SOLENOID Assy
(1) Remove the Frame-Main (DUP) (See section 3.3.2).
(2) Release the lock to remove Two LEVER Sensor (F/R) 1and two SPRING-Sensor (F/R) 2.
(3) Unplug the Connection Code-Wire 3and remove Photo Sensor 4.
(4) Take away the SPRING-SL 5and two screws 6to remove SOLENOID Assy 7.
7
5
3
4
6
View
7
2
2
1
View
6
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3.3.36 Motor
(1) Remove the Frame-Main (DUP) (See section 3.3.2).
(2) Unscrew two screws 1to remove PLATE-Earth (F/R) 2.
(3) Unscrew three screws 3to remove PLATE-Earth (F/R-2) 4.
(4) DisengagethelatchtoremovetheBearingL5, GEAR-Z40S86, Bearing7andROLLER-
Feed (RV) 8.
(At this time, Knock Pin 9can be removed simultaneously.)
(5) Unscrew the screw 0to remove the PLATE-Earth (BTM) A.
(6) Disengage the latch and remove two PULLEY-MX25 B, Mini-Pitch Belt Cand two Bushes
D.
(7) Disengage the latch to remove the Bearing Feed Eand ROLLER Feed (F) F.
(8) Remove the E-Ring Gand Bush H.
(9) Unscrew two screws Ito remove the GEAR Assy J.
(Atthistime, theGEAR-Z40S6K, KnockPinLandROLLER-Feed(R)Mcanberemoved.)
(10) Unscrew two screws Nto remove Motor O.
1
F
2
8
M
9
L
B
3
4
C
3
K
5
D
I
E
H
N
0
O
G
J
6
A
7
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5.
PERIODIC MAINTENANCE
5.1
Periodic Replacing Part
As specified below, the parts shall be replaced periodically.
Part name
Condition for replacement
5,000
Cleaning
Remarks
• Toner cartridge
• LED head.
Consumables
• Regist Paper dust.
• Image drum cartridge
30,000
• LED head.
Consumables
• Regist Paper dust.
• Heat Assy
200,000
200,000
200,000
200,000
200,000
200,000
Maintenance Kit
Maintenance Kit
Maintenance Kit
Maintenance Kit
Maintenance Kit
Maintenance Kit
• Transfer Roller
• Back up Roller Assy
• Feed Roller Assy
• Hopping Roller Assy
• Separation Frame Assy
[Note: Maintenance Kit shall be replenished by user;s calling to serviceman.]
5.2
Cleaning
Remove any toner and dust. Clean inside and around the printer with a piece of cloth when
necessary. Use the handy cleaner (VACCUM) for cleaning the printers interior.
Note: Do not touch image drum, LED lens array, and LED head connector block.
5.2.1 Cleaning of LED lens array
Clean the LED lens array or replace the toner cartridge when white lines or stripes (void, light
printing) are generated vertically down the page.
Note: The LED lens array must be cleaned with an LED head cleaner.
White lines or stripes
(void, light printing)
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5.2.2 Cleaning the Plastic Film
(1) Open the stacker assy and remove I/D unit.
(2) After cleaning LED head, wipe off the paper powder by LED LENS CLEANER and remove
the paper powder.
Plastic Film
(3) Take the remove paper powder out of the printer unit in such a way as not to spill it, and then
waste it.
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6.
TROUBLESHOOTING PROCEDURES
6.1
Troubleshooting Tips
(1) Check the basic check points covered in the user’s manual.
(2) Gather as much information on the problem from the customer as possible.
(3) Perform inspections in conditions close to those in which the problem had occurred.
6.2
Points to Check before Correcting Image Problems
(1) Is the printer being run in proper ambient conditions?
(2) Have the supplies (toner) and the routine replacement part (image drum cartridge) been
replaced properly?
(3) Is the paper normal? See paper specifications section.
(4) Has the image drum cartridge been loaded properly?
6.3
Tips for Correcting Image Problems
(1) Do not touch, or bring foreign matter into contact with the surface of the image drum.
(2) Do not expose the image drum to direct sunlight.
(3) Keep hands off the fuser unit as it is heated during operation.
(4) Do not expose the image drum to light for longer than 5 minutes at room temperature.
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6.4
6.5
Preparation for Troubleshooting
(1) Operator panel display
The failure status of this printer is displayed on the liquid crystal display (LCD) in the
operator panel. Take proper corrective action as directed by messages that are displayed
on the LCD.
Troubleshooting Flow
If troubles should develop in this printer, troubleshoot in the following procedure flow:
Troubles
Troubles
indicated by LCD
message
Troubleshoot from the LED
status message list.
See 6.5.1.
Perform detailed trouble-
shooting with the trouble-
shooting chart. See 6.5.2.
Image troubles
Perform troubleshooting
with the troubleshooting
chart. See 6.5.3.
(and troubles that
are not indicated by
LCD message)
6.5.1 LCD status message/trouble list
Table 6-1 lists the status and troubles that may be indicated by messages on the LCD.
LED status
: OFF
: ON
: BLINK
: Undefined
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Category
LCD status message
Trouble or status
Remedy
Daily status
Indicates on-line status
Normal operation
READY
ON-LINE
dddddd
.xxx
tttttt:
Tn:
Tray
tttttt
ATTENTION
(TRAY 1, TRAY 2, TRAY3, and FRONT MANUALFEEDER)
Cassette tray
(T1; TRAY 1, T2; TRAY 2, T3; TRAY 3)
mmmmmmmmm: Paper size in the tray being selected
(LETTER, EXECUTIVE, LEGAL 14, LEGAL 13,A4 SIZE, A5 SIZE, A6
SIZE, B5 SIZE, COM-10,MONARCH, COM-9, DL ENV, C5 ENV, C4
ENV)
xxx:
Emulation in operation
(AUT, PCL, PS, PPR, FX, and HEX)
dddddd: The mode of both-sided printing/ one-sided printing is
indicated.
(DUPLEX, SIMPLEX)
Indicates off-line status
READY
OFF-LINE
dddddd
.xxx
tttttt
ATTENTION
Indicates during data receiving or outputting
READY
PROCESSING .xxx
ATTENTION
Indicate that not-yet-printed data is remained in the buffer. In a state of
waiting for following data.
In the off-line mode, the data is printed by pressing the
FORM FEED button.
READY
DATA PRESENT.xxx
ATTENTION
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LCD status message
Trouble or status
Remedy
Daily status
Normal operation
Indicate that the printer is printing.
READY
PRINTING
ATTENTION
Indicates that job flush is designated and the state in which data is
received and abandoned until the completion of a job.
READY
FLUSHING JOB
ATTENTION
Flushing job: Press the RESET button.
Resume: Press the ON LINE button.
Mean that, in shifting to off line in data-remaining state, if you want to
abandon the data being processed, execute the reset.
READY
or
RESET TO FLUSH
ATTENTION
READY
Warning
Indicates that not-installed printer language is designated by PJL
command (Warning).
PS NOT AVAILABLE
When CLEARABL WRNINGS= ON has been selected in the menu, this
indication is cleared by pressing Recover switch.
ATTENTION
READY
Informs that the printer becomes-power-save status (heater off). This is
indicated in combination with other messages of the first line.
Normal operation
POWER SAVING
ATTENTION
Informs that the sheets are near to end in a tray cassette (common with
1st/ 2nd/ 3rd). when the remaining reaches 20 sheets, it is detected.
Warning
READY
PAPER NEARED Tn
ATTENTION
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LCD status message
Trouble or status
Remedy
Daily status
Informs that the amount of toner low
Replace the toner cartridge.
READY
This is indicated in combination with other messages of the first line.
Normal operation is possible.
But when "LOW TONER= OFF" has been selected in the menu,
ATTENTION LED will flash.
TONER LOW
ATTENTION
or
Informs that toner sensor detects an error.
Check the operation of the toner sensor lever.
Replace the Power Supply Unit (High Voltage)
Replace the main board.
Note: When replacing the main board, install the EEPROM
mounted on the replaced main board.
READY
But when the total drum count were > 30 pages, this error would be
indicated, when the total drum count were= < 30 pages, an impossible-
to reset alarm "ERROR 77" , which will be described later, would be
indicated.
TONER SENSOR
ATTENTION
This is indicated in combination with other messages of the first line.
Normal operation is passible.
READY
Informs of the drum life.
This is indicated in combination with other messages of the first line.
Normal operation is enabled if desired.
Repace the image drum cartridge.
Note: After replacing the drum cartridge, reset the drum
counter. (Refer to the User's Manual)
CHANGE DRUM
ATTENTION
Informs that the life of a replaceable part such as fuser (fusing device)
and roller.
This is indicated in combination with other messages of the first line.
Normal operation is possible.
Replace the fuser unit.
Note: After replacing the fuser unit reset the fuser counter.
(Refer to chapter 4.2.1)
READY
FUSER LIFE
ATTENTION
Indicates that the number of sheets in current printing when the number
of copies is two or more.
Normal operation.
Normal operation
READY
or
COPY
nnn/mmm
ATTENTION
Deletes not-yet-printed data within the buffer and initiates the status of
the printer to user default.
Temporary DLL/ macro/ user pattern will be deleted.
READY
RESET
ATTENTION
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LCD status message
Trouble or status
Remedy
Daily status
Prints all the fonts which are included in the printer.
Ready Light on: execution by command
Ready Flash: execution by switch.
Normal operation.
READY
PRINT FONTS
or
ATTENTION
Indicates that the printer is under cleaning printing process.
The second line will become "MANUAL LETTER REQUEST" or
"MANUAL A4 SIZE REQUEST"
Set requested paper to front tray, and press FORM FEED
button.
READY
DRUM CLEANING
MANUAL mmmmmm REQUEST
ATTENTION
Prints the demo page.
Ready light on: execution by command
Ready flash: execution by switch
Normal operation
Normal operation
READY
or
PRINT DEMO PAGE
ATTENTION
Prints current menu setting.
Ready Light on: execution by command
Ready Flash: execution by switch
READY
or
PRINT MENU
ATTENTION
Requests that a sheet indicated in the second line message is inserted
by hans.
Set requested paper to front tray, and press FORM FEED
button.
READY
mmmmmmmmm MANUAL
YYYYYYYY REQUEST
ATTENTION
YYYYYYYY: sheet type (PAPER, ENVELOPE)
Promotes an forced exit by FORM FEED switch when the time set in
WAIT TIME OUT of AUTO OPERATION in the level 2 menu has been
passed since no data received.
Press FORM FEED button.
READY
PRESS FORM FEED
TO EJECT
ATTENTION
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LCD status message
Trouble or status
Remedy
Daily status
Indicates that the face down stacker is full with sheets.
Remove the paper from the stacker.
READY
STACKER FULL
Repair the broker stacker sensor cable.
Repeat the insertion and removal of the connector.
Clean or replace the stacker full sensor.
REMOVE THE PAPER
ATTENTION
Indicates that no paper or paper cassette in a tray.
Load a paper or paper cassette to the tray.
READY
PAPER OUT
mmmmmmmmmm tttttt
ATTENTION
IIndicates that, in an attempt to use the third tray, the first or second
tray which is the medium of the path is pulled out.
Install the displayed tray.
READY
tttttt INSTALL
Indicates that, in an attempt to use the second tray, the first tray which
is the medium of the path is pulled out.
ATTENTION
Provisions: The first and second tray should be returned.
Requests that a sheet indicated in the first line message is inserted.
Load the requested paper in tray.
READY
mmmmmmmmm tttttt
PAPER REQUEST
ATTENTION
Indicates that the interpreter detects an error due to the following
reasons. From this point on, the receiving data is flushed until the
completion of a job. It is automatically canceled when job receiving is
completed.
Warnig.
Check the print job format.
READY
ERROR POSTSCRIPT
ATTENTION
Indicates that the capacity of memory is Overflowed due to the
following reasons. The operation is continued by pressing Recover
switch. Additional RAM should be installed or the amount of data be
reduced.
Press the RECOVER key on the operator panel to release
the error display.
Install an expansion optional RAM or reduce the amount of
print data.
READY
ERROR MEMORY
OVERFLOW
ATTENTION
-Too large printing data within one page.
-Too large macro data.
-Too large DLL data.
-Overflow after the compression of frame buffer.
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Category
LCD status message
Trouble or status
Remedy
Informs that the data within the receiving buffer Overflows.
The operation is continued by pressing Recover switch.
The host side should be changed in settings to be able to recognize a
printer Busy status and the data be re-transmitted.
Press the RECOVER key on the operator panel to release
the error display.
Change the setting of the host side so that the host can
detect the busy state of the printer.
Daily status
READY
ERROR RECEIVE
BUFFER OVERFLOW
ATTENTION
Resend the data from the host side to the printer.
Informs that the printer occurs an Overrun. The operation is continued
by pressing Recover switch.
The page formatting should be slightly simplified.
It can be canceled in PS mode when the completion of a job.
Press the RECOVER key on the operator panel to release
the error display.
Simplify page data formatting.
READY
ERROR PRINT
OVERRUN
ATTENTION
Informs that an error occurs in serial I/F. The operation is continued by
pressing Recover switch.
This is indicated when parity error, framing error, overrun error and so
on is detected. The protocol of host and printer should be rechecked.
-
Press the RECOVER key on the operator panel to release
the error display.
Check the settings of RS232C I/F in the menu.
Replace the interface cable or the Main board (Board-
FFF).
READY
ERROR HOST I/F
RS232C
-
-
ATTENTION
Note: When replacing the Main board, install the
EEPROM mounted in the replaced Main board.
READY
Informs that an error occurs in the home position of front tray.
Although the front tray becomes unavailable by pressing Recover
switch, the other trays continue operating normally.
Check front tray home sensor.
Replace the toner cartridge.
FRONT TRAY ERROR
PRESS RECOVERKEY
ATTENTION
READY
Promotes by indication that a cartridge should be replaced after a 100-
sheet printing since the detection of toner low. It is temporarily reset by
opening and closing the cover. This indication will be displayed each
20-sheet printing unless the cartridge is replaced.
TONER EMPTY
REPLACE TNR CART
ATTENTION
Paper of improper size was fed from the tray.
tttttt: MANUAL, TRAY1, TRAY2, FRONT, FEEDER
Check the paper in the tray or check to see if more than one
sheet of copy were fed simultaneously.
Open the cover, then close it to perform recovery printing
and the error display is released.
READY
ERROR PAPER SIZE
CHECK tttttt
ATTENTION
If this error occurs frequently, see chapter 6.5.2
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Category
LCD status message
Trouble or status
Remedy
Daily status
Informs that, in feeding papers from tray n to the Duplex unit, a jam
occurs in the separator or Duplex unit, by monitoring OUTSNS ON ~
DUP INSNS ON.
Remove all of the paper in the printer.
Open the cover, then close it to perform recovery printing
and the error display is released.
READY
DUPLEX INPUT JAM
REMOVE THE PAPER
ATTENTION
Tray n : Tray1, Tray2, Tray3, Front Multi Feeder
Informs that, in feeding papers form n tray to the Duplex unit, a jam
occurs in the separator or Duplex unit, by monitoring DUP INSNS ON ~
DUP INSNS OFF.
Remove all of the paper in the printer.
Open the cover, then close it to perform recovery printing
and the error display is released.
READY
DUPLEX FEED JAM1
REMOVE THE PAPER
ATTENTION
Informs that, in feeding papers from n tray to the Duplex unit, a jam
occurs when a paper is reversed to the reverse roller of the Duplex unit,
by monitoring MOTOR (Duplex) ON ~ DUP R SNS ON.
Remove all of the paper in the printer.
Open the cover, then close it to perform recovery printing
and the error display is released.
READY
DUPLEX FEED JAM2
REMOVE THE PAPER
ATTENTION
Informs that, in feeding papers from n tray to the Duplex unit, a jam
occurs when a paper is impinge-fed in the Duplex unit, by monitoring
DUP R SNS ON ~ DUP F SNS ON.
Remove all of the paper in the printer.
Open the cover, then close it to perform recovery printing
and the error display is released.
READY
DUPLEX FEED JAM3
REMOVE THE PAPER
ATTENTION
Jam which occurs in feeding papers to the Duplex when the first tray
cassette is pull out in paper-remaining state. Structurally, No first tray
cassette will cause no reverse root for papers and open the Duplex
cover downwards.
Remove all of the paper in the printer.
Open the cover, then close it to perform recovery printing
and the error display is released.
READY
DUPLEX OPEN JAM
REMOVE THE PAPER
ATTENTION
Informs that a jam occurs during paper running after exiting from the
tray.
Check the paper in the cassette. Open the cover, then
close it to perform recovery printing and the error display is
released.
READY
PAPER INPUT JAM
CHECK tttttt
ATTENTION
If the error ocuurs frequently, see chapter 6.5.2
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Category
LCD status message
Trouble or status
Remedy
Daily status
Informs that a jam occurs during paper running after exiting from the
tray.
Open the cover, remove the paper, then close the cover.
When the cover is closed, recovery printing is performed
and the error display is released.
READY
PAPER FEED JAM
CHECK tttttt
ATTENTION
If the error occurs frequently, see chapter 6.5.2
Informs that a jam occurs after ejecting a paper. Open the cover and
remove the paper inside.
Open the cover, remove the paper, then close the cover,
When the cover is closed, recovery printing is performed
and the error display is released.
READY
PAPER EXIT JAM
REMOVE THE PAPER
ATTENTION
If the error occurs frequently, see chapter 6.5.2
Informs that OKI HSP I/F card is under reset. It can be automatically
restored by stopping the reset.
Warning
READY
OKI HSP I/F CARD
RESETTING
ATTENTION
Informs that an error (significant malfunction) occurs. The operation is
continued by pressing Recover switch.
xx: 10 I/F timeout
Press REWCOVER key.
If the error occurs frequently, check HSP card.
READY
ERROR HOST I/F
OKI HSP XX
ATTENTION
20 Initial error occurs 10 seconds later since powering on
21 In the event that it takes 3 seconds or more for shifting to
the operating mode, or a command for operating mode is
received during power on mode.
22 Communication error between OKI HSP-host
READY
Informs that the upper cover is open.
Close the cover to release toe error display.
COVER OPEN
If the display does not change after the comer is closed,
check for correct operation of cover open/switch and lever.
Replace the Power Supply Unit (High Voltage).
ATTENTION
Indicates that an error occurs from the results of checking ID No. of
EEPROM. The operation is continued by resetting EEPROM to factory
default after a-few-second indication.
It displays the message for a few seconds. It reset the
EEPROM to the factory default state to continue operation.
READY
EEPROM
*
When the program ROM is updated and the EEPROM is
replaced with new one, the menu factory default
corresponding to each destination will be loaded
RESETTING
ATTENTION
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Category LCD
message
READY ATTENTION
Trouble or status
Remedy
LED
LED
A fault occurred in the printer.
Turn the power off, then on to release the error display. If the error
display cannot be released by this procedure, call a service person.
Controller ERROR CONTROLLER Light off
Flash
nn-aaaaaaaa
error
Code
(nn)
Error
Remedy
10
20
30
An error was detected by program hash check.
– Replace the program ROM.
(Location: BOARD-FFF: IC6, IC8, IC30, IC31)
– Replace the Main board (BOARD-FFF).
Note: When replacing the Main board, install the
EEPROM mounted on the replaced Main board.
An error was detected by font format check.
An error was detected by resident RAM check.
– Replace the font ROM.
(Location: BOARD-FFF: IC6, IC8, IC30, IC31)
– Replace the Main board (BOARD-FFF).
Note: When replacing the Main board, install the
EEPROM mounted on the replaced Main board.
– Replace the Main board (BOARD-FFF).
Note: When replacing the Main board, install the
EEPROM mounted on the replaced Main board.
40
50
60
70
An error was detected by EEPROM check.
An error was detected by optional software ROM.
An error was detected by optional RAM check.
A fault occurred in the fan motor.
– Replace the EEPROM. (Location: IC19)
– Replace the Main board (BOARD-FFF).
– Replace the PostScript module (BOARD-MSM or
BOARD-FSL).
– Check the optional RAM for proper connection.
– Replace the optional RAM.
– Connect the fan motor cable properly.
– Replace the fan motor.
– Power Supply Unit (AC120V/ 230V)
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Category LCD
READY ATTENTION
Trouble or status
Remedy
message
LED
LED
Controller
error
Code
(nn)
Error
Remedy
71
72
73
A fault occurred in the fuser.
See chapter 6.5.2.
See chapter 6.5.2.
Thermistor open error
Thermistor short error
74
77
SSIO error
Check the operation of the toner sensor lever.
Relace the Power Supply Unit (High Voltage)
Replace the main board.
Toner sensor error
Note: When replacing the main board, install the EEPROM
mounted on the replaced main board.
See chapter 6.5.2.
See chapter 6.5.2.
80
81
I/F timeout occurred between the printer main unit and the
operator panel.
I/F timeout occurred between the printer main unit and the
optional tray (2nd tray, 3rd, multi feeder.)
See chapter 6.5.2.
See chaspter 6.5.2.
83
84
90
I/F timeout occurred between the printer and the Duplex Unit
Printing sequence error in the Duplex unit.
A watchdog timer timeout occurred.
– Turn the power off, then on.
– Replace the Main board. (BOARD-FFF)
F0
F1
F2
F3
F4
Monitor error (double weight)
Monitor error (argument error)
Optional timeout error
Optional status error
Note: When replacing the Main board, install the EEPROM
mounted on the replaced Main board
BG program error
F5
F6
F7
System timer program error
IPT2 program error
IPT1 program error
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Category LCD
message
READY ATTENTION
Trouble or status
Remedy
LED
LED
ERROR CONTROLLER Light off
nn-aaaaaaaa
Flash
An error occurred in the controller.
n = ( 1) Exception Code aaaaaaaa = Error address
Proccesor
error
*
*1:
Exception
Error
code
– Turn the power off, then on.
1~3
D~F
Reserved
– Replace the Main board. (BOARD-FFF)
4
Address Error Exception
(Lead instruction, instruction fetch)
Note: When replacing the Main board, install the
EEPROM mounted on the replaced Main board.
5
6
7
Address Error Exception (Store instruction)
Bus Error Exception (Instruction Fetch)
Bus Error Exception
(Load instruction, store instruction)
8
System Call Exception
9
Breakpoint Exception
A
B
C
Reserved Instruction Exception
Coprocessor Unusable Exception
Arithmetic Overflow Exception
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6.5.2 LCD message troubleshooting
If troubles are not correctable from the LCD message trouble list, follow the troubleshooting
flowcharts given here to deal with them.
No.
Trouble
Flowchart number
1. The printer does not work normally after being turned on.
1
2. Jam error
Paper input jam (1st Tray)
Paper input jam (Front feeder)
Paper feed jam
2-1
2-2
2-3
2-4
2-5
2-6
2-7
2-8
Paper exit jam
Duplex INPUT jam
Duplex FEED jam
Duplex FEED jam
Duplex FEED jam
3. Paper size error
3
4
A
4. Fusing unit error (ERROR71, ERROR72, ERROR73)
5. SSIO (Synchronous Serial I/O) error
(between the Main board and the Power Supply Unit (High voltage))
(ERROR74)
6. I/F time-out between the printer and the operator panel
(ERROR80)
7
5
7. I/F time-out (no response) between the printer and an
optional tray (2nd tray, 3rd tray, multi feeder) (ERROR81)
8. Messages cannot be received through the parallel interface.
9. Messages cannot be received through the serial interface.
10. Data cannot be received through the OKI HSP interface.
8
9
0
6
11. I/F time-out between the printer and the Duplex unit.
Printing sequence error in the Duplex. (ERROR83, ERROR84)
Note: When replacing the Main board, install the EEPROM from the old Main board, onto the new
Main board.
40930701TH DRAFT Vesion
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1
The printer does not work normally after being turned on.
•
Is
message shown in the LCD display (for less than 1 second)?
•
No
No
Is the AC cable connected properly?
No Connect the cable properly.
•
▼
•
Is the message (16 columns ■ display only on the top row ) shown in the LCD
display?
•
Yes Replace the Main board.
▼
•
No
Are the following voltages applied to the corresponding pins of the POWER
connector on the Main board? (For the measuring points, see Figure 6-1.)
Pin 23: –8V, Pin 24: +8V, Pins 19, 20: +30V
Pins 9-12, 17, 18: 0V, Pins 13, 14: +5V
•
No
Remove the AC cable. Set the POW switch to the ON position.
Measure the resistance between L and N pins of the AC inlet using a
multimeter. Is there continuity between L and N pins (normal resis-
tance: 554 kΩ)? (For measuring points, see Figure 6-2.)
•
No
Replace the fuse F2 or the Power Supply Unit (AC120V or
230V)
▼
•
Yes Are POWER connector of the Main board and Connection cord-Wire
(26 pin) connected properly?
Are connection cord-wire and CN3 connector of the Power Supply
Unit (AC120V or 230V) connected properly?
•
No
Connect the connectors properly.
▼
•
Yes Are the following voltages applied to CN3 connector of the Power
Supply Unit (AC120V or 230V)? (For measuring points, see Figure 6-
3.)
Pins 19, 20: +30V, Pins 9-12, 17, 18: 0V
Pin 23: –8V, Pins 13, 14: +5V, Pin 24: +8V
•
No
Replace the Power Supply Unit (AC120V or 230V).
▼
•
Yes Replace the Connection cord-wire (26 pin).
Is the printer recovered?
▼
•
•
No
Replace the Main board
▼
•
YES END
1-1
1-2
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From 1-2 on the preceding page
1-1
▼
•
Yes Is the operator panel connected to the Main board properly?
No Connect the operator panel properly.
Yes Is the connecting cord defective?
Yes Replace the connecting cord.
Replace the operator panel assembly.
Is the printer recovered?
No Replace the Main board.
YES END.
Is
•
▼
•
•
▼
•
No
▼
•
•
▼
•
▼
•
Yes
message shown in the LCD display?
INITIALIZING
•
No
Replace the Main board.
ONLINE .XXX
▼
•
YES
message shown in the LCD display?
XXXX XXXX
•
No
Take the proper action following the message shown in the LCD display.
(For details, see the Chapter 6.5.1 LCD STATUS message/trouble list.)
▼
YES
END
40930701TH DRAFT Vesion
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STKFULL
HEAD2
HEAD1
2
1
12
11
1
3
1
2
71
72
13
14
1
2
1
2
71
72
1
2
71
72
IC5
IC6
IC31
IC7
IC8
IC30
5
6
1
2
1
2
25
26
1
12
DUP
SIZE
POWER
POWER CONNECTOR
Main control board (BOARD-FFF)
Figure 6-1 Connector and Pin Location
SW1
L3
INLET
L
F2
N
L4
FG
Figure 6-2 Measurement by a Multimeter
40930701TH DRAFT Vesion
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25 26
1
2
PC501
F2
F1
1
15
CN6
1
15
Figure 6-3 Connector and Pin Location
40930701TH DRAFT Vesion
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[JAM error]
2-1 Paper input jam (1st tray)
•
Does a jam error occur when the power is turned on?
•
Yes Is the paper at the inlet sensor lever?
•
Yes Remove the paper.
No Does the inlet sensor lever operate smoothly?
▼
•
•
No
Replace the inlet sensor lever
▼
•
Yes Clean the inlet sensor 1 on the Power Supply Unit (High
Voltage) or replace the Power Supply Unit (High Voltage).
(See Figure 2.3 Sensor Layout Diagram.)
▼
•
No
Does jam eror occur after paper feeding?
•
Yes Is the paper fed on the inlet sensor lever?
•
Yes Does the inlet sensor lever operate smoothly?
No Replace the inlet sensor lever.
•
▼
•
Yes Clean the inlet sensor 1 on the Power Supply Unit (High Voltage) or
replace the Power Supply Unit (High Voltage). (See Figure 2.3
Sensor Layout Diagram.)
▼
•
No
Replace the hopping roller assembly or paper cassette assembly.
Is the hopping roller rotating?
▼
•
No
•
Yes Set the paper cassette properly.
No Is the hopping motor rotating?
Yes GEAR ASSY-CLUTCH (Z50) turned ON ?
▼
•
•
A
•
No
Is a cable and connector securely connected between GEAR ASSY-
CLUTCH and MAIN BOARD ?
•
No
Connect the cable firmly. Is the printer recoverd?
YES END
Replace the GEAR ASSY-CLUTCH (Z50).
•
▼
•
No
▼
•
Yes Replace the Frame Assy-Hopping.
▼
•
No
No
Are the cable and connector between the hopping motor and the Main board
connected properly? (See Chapter 7.1.)
•
Connect each connector properly or replace the nylon connector cord (white: 9
pins).
▼
•
Yes Is the coil resistance (normal resistance: about 6.7 Ω) of the hopping motor
normal?
•
No
Replace the hopping motor.
▼
•
Yes Replace the Main board.
40930701TH DRAFT Vesion
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2-2 Paper input jam (front feeder)
•
Does jam error occur when the power is turned on?
•
Yes Is the paper at the inlet sensor lever?
•
Yes Remove the paper.
▼
•
No Does the inlet sensor lever operate smoothly?
Replace the inlet sensor lever.
A
•
No
▼
•
Yes Clean the inlet sensor 1 on the Power Supply Unit (High Voltage) or
replace the Power Supply Unit (High Voltage). (See Figure 2-3
Sensor Layout Diagram.)
▼
•
No
Yes Is the paper fed on the inlet sensor lever?
Yes Go to
Go to
Does a jam error occur after paper feeding?
•
•
A
.
▼
•
No
.
B
▼
•
No
•
Does the front feeder paper sensor lever operate smoothly?
Replace the lever of the front feeder paper sensor.
No
▼
•
Yes Clean the front feeder paper sensor.
Is the printer recovered?
YES END
▼
•
•
▼
•
No
Replace the front feeder paper sensor assembly.
No Is the hopping roller rotating?
▼
•
B
•
Yes Set the paper properly.
No Is the hopping motor rotating?
Yes Replace the front feeder gear or idle gear.
▼
•
▼
•
▼
2-1-
A
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2-3 Paper feed jam
•
Does a paper feed jam occur when the power is turned on?
•
Yes Is the paper on the paper sensor lever?
•
Yes Remove the paper.
▼
•
No
No
Does the paper sensor lever operate smoothly?
Replace the paper sensor lever.
•
▼
•
Yes Clean the paper sensor. (See Figure 2-3 Sensor Layout Diagram.)
Is the printer recovered?
▼
•
•
No
Replace the Power Supply Unit (High Voltage).
▼
•
YES END
▼
•
No
No
Has the paper reached the paper sensor lever?
Is the Drum motor rotating?
•
•
No
Go to on the next page
.
C
▼
•
Yes Is the cluch for register roller (N0.44 in Figure 8-2) turned on ?
•
No
Is a cable from the clutch connected to "CLR" connector on
the main board ?
▼
•
Yes Replace the Clutch.
Is the printer recovered?
▼
•
▼
•
No
Replace the Main board.
▼
•
YES END
▼
Go to on the next page
.
A
▼
Go to on the next page
B
.
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From on the preceding page
.
B
From on the preceding page
A
.
▼
•
Yes Is the image drum set properly?
No Set the image drum properly.
•
▼
•
Yes In case of paper feed from the front feeder, check the hopping roller of the front
feeder assembly. In case of paper feed from the tray, check the hopping roller
assembly and the tray.
▼
•
No
•
Has the paper reached the outlet sensor lever?
Yes Does the outlet sensor lever operate smoothly?
•
No
Replace the outlet sensor lever.
▼
•
Yes Clean the outlet sensor on the Power Supply Unit (AC120V or 230V).
(See Figure 2-3 Sensor Layout Diagram.)
▼
•
Is the printer recovered?
▼
•
No
Replace the Power Supply Unit (AC120V or 230V).
▼
•
YES END
▼
•
No
•
Is the drum motor rotating?
Is there any defective gear in the motor bracket assembly?
No
No
C
•
Yes Replace the defective gear.
▼
•
Are the connections for "Motor" connector on the Main board between drum
motor, properly? (See Chapter 7.1)
•
No
Connect these connectors properly.
▼
•
No
Is the coil resistance (normal resistance between pins 1 and 2, between pins 3
and 4 : 3.1 Ω) of the drum motor normal?
•
No
Is the printer recovered?
No Replace the Main board.
YES END
Replace the drum motor.
▼
•
•
▼
•
▼
A
Go to on the next page
.
40930701TH DRAFT Vesion
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A
From on the preceding page
.
▼
•
No
•
Is the transfer roller rotating smoothly?
No
No
No
No
No
Is there any defective gear of the transfer roller?
•
Yes Replace the defective gear.
▼
•
Replace the transfer roller.
▼
•
No
•
Is the fuser unit installed properly?
Install the fuser unit properly.
▼
•
No
•
Is the image drum cartridge set properly?
Set the image drum cartridge properly.
Does the paper sensor lever operate smoothly?
Replace the paper sensor lever.
▼
•
No
•
▼
•
Yes Clean the paper sensor on the Power Supply Unit (High Voltage).
(See Figure 2-3 Sensor Layout Diagram.)
▼
•
Is the printer recovered?
•
No
Replace the Power Supply Unit (High Voltage).
▼
•
YES END
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2-4 Paper exit jam
•
Does a paper exit jam error occur when the power is turned on?
•
YES Is the paper on the outlet sensor lever?
•
Yes Remove the paper
▼
•
No
No
Does the outlet sensor lever operate smoothly?
Replace the outlet sensor lever.
•
▼
•
Yes Clean the outlet sensor on the Power Supply Unit (AC120V or 230V).
(See Figure 2-3 Sensor Layout Diagram.)
▼
•
Is the printer recovered?
•
No
Replace the Power Supply Unit (AC120V or 230V).
▼
•
YES END
▼
•
No
No
Is the face-up stacker drawn out or pushed into the printer completely?
•
Draw the face-up stacker out the printer completely or push it into the printer
completely.
▼
•
Yes Is the eject roller assembly installed properly?
No Install the eject roller assembly properly.
Yes Replace the eject roller assembly.
•
▼
•
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2-5 Duplex INPUT JAM
•
Is the leading edge of paper is fed in the Duplex unit?
•
Yes Has the leading edge of paper reached the Duplex In sensor
•
Yes Is the Duplex In sensor lever operating normally?
•
Yes Is the connection cord between the Duplex In sensor and
the Board-LEX connected properly?
•
Yes
Does the connection cord have a break?
•
•
•
Yes
Replace the connection cord
(Connection Code-Wire).
No
Replace the Duplex In sensor (FX50
Photo Sensor)
YES
END
▼
•
No
Connect the connection cord properly.
▼
•
No
Replace the Duplex In sensor lever (LEVER-Sensor (D-IN) and
SPRING-Sensor (D-IN)).
▼
•
No
Is the connection cord between the Motor and the Board-LEX?
•
•
•
•
•
Yes Replace the GEAR Assy.
YES END
No
YES END
No Replace the Board-LEX.
Replace the Motor.
▼
•
No
Connect the connection cord properly.
▼
•
No
•
Does the square-shaped connector between the Duplex unit and printer unit has
any trouble?(Is there a pin bend or other troubles?)
Yes Is the connection cord between the Duplex unit and the printer unit connected
properly?(See Chapter 7.1 and Appendix C Chapter 5.1)
•
Yes Does the connection cord have a break?
Yes Replace the connection cord (Core Assy-DUPLEX).
•
▼
•
No
Is the connection between the solenoid and the Board-LEX connected
properly?
•
•
•
Yes Replace the SOLENOID Assy.
YES END
No
Replace the Board-LEX.
▼
•
No
Connect the connection cord properly.
▼
•
No
Connect the connection cord properly.
▼
•
No
Replace the square-shaped connector (Connector (IMSA-9714N-14A)).
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2-6 Duplex FEED JAM1
•
Is there a paper on the Duplex In sensor lever?
•
No
Is the Duplex In sensor operating normally?
•
Yes Is the connection cord between the Duplex In sensor and the Board-
LEX connected properly?
•
Yes Does the connection cord have a break?
•
Yes
Replace the connection cord (Connection
Code-Wire).
▼
•
No
YES END
No Replace the Board-LEX.
Replace the Duplex In sensor (FX50 Photo Sensor).
•
•
▼
•
No
Connect the connection cord properly.
▼
•
No
Replace the Duplex In sensor lever (LEVER-Sensor (D-IN) and SPRING-
Sensor (D-IN)).
▼
•
YES Remove the paper.
2-7 Duplex FEED JAM 2
•
Has a paper reached the Duplex Rear sensor?
•
No
Is the connection cord between the clutch and the Board-LEX connected
properly?
•
•
•
Yes Replace the GEAR Assy.
YES END
No
Replace the Board-LEX.
▼
•
No
Connect the connection cord properly.
▼
•
Yes
•
Is the Duplex Rear sensor operating normally?
Yes Replace the Board-LEX.
▼
•
No
Replace the Duplex Rear sensor lever (LEVER-Sensor (F/R) and SPRING-Sensor
(F/R)).
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2-8 Duplex FEED JAM 3
•
Has a paper reached the Duplex Front sensor?
•
No
Is the connection cord between the clutch and the Board-LEX properly?
•
•
•
Yes Replace the GEAR Assy.
YES END
No
Replace the Board-LEX.
▼
•
No
Connect the connection cord properly.
▼
•
Yes
•
Is the Duplex Front sensor lever operating normally?
Yes Is the connection cord between the Duplex Front sensor and the Board-LEX
connected properly?
•
Yes Does the connection cord have a break?
•
•
•
Yes Replace the Duplex Front sensor (FX50 Photo Sensor).
YES END
No
Replace the Board-LEX.
▼
•
No
Connect the connection cord properly.
▼
•
No
Replace the Duplex Front sensor lever (LEVER-Sensor (F/R) and SPRING-
Sensor (F/R)).
40930701TH DRAFT Vesion
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3
Paper size error
•
Is paper of the specified size used?
•
No
Yes Do the inlet sensor lever and paper width sensor lever operate smoothly?
No Replace the inlet sensor lever or paper width sensor lever.
Is the printer recovered?
Use paper of the specified size.
▼
•
•
▼
•
•
•
No
Clean the inlet sensor 1 or paper width sensor on the Power Supply
Unit (High Voltage). (See Figure 2-3 Sensor Layout Diagram.)
Is the printer recovered?
No Replace the Power Supply Unit (High Voltage).
YES END
•
▼
•
▼
•
YES END
YES Does the outlet sensor lever operate smoothly.
No Replace the outlet sensor lever.
Is the printer recovered?
▼
•
•
▼
•
•
No
Clean the outlet sensor on the Power Supply Unit (AC120V or 230V).
(See Figure 2-3 Sensor Layout Diagram.)
▼
•
Is the printer recovered?
No Replace the Power Supply Unit (AC120V or 230V).
YES END
•
▼
•
▼
•
YES END
▼
•
Yes Clean the inlet sensor 1, inlet sensor 2, and outlet sensor.
(See Figure 2-3 Sensor Layout Diagram.)
▼
•
Is the printer recovered?.
•
No
Replace the Power Supply Unit (High Voltage).
▼
•
YES END
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4
Fuser unit error (ERROR 71), (ERROR 72), (ERROR 73)
•
Turn the power OFF/ON.
▼
•
Does a fuser unit error occur immediately?
•
Yes Is the thermistor open or shorted?
Measure the resistance between thermistor contacts.
(About 220 kΩ at room temperature, 25°C)
(See Chapter 7.3 for the measuring points.)
•
•
Yes Replace the fuser unit.
▼
•
No
Is a cable of the thermistor connected to "CN8" connector on the
Power Supply Unit (High Voltage)?
A
Is there any flaw on the cable of the thermistor ?
No
Adjust the thermistor contact so as to touch the contact assembly
properly.
▼
•
Yes Does appear the heat-on signal at pin 6 (HEAT ON signal: 0 V in heater on
state) of the POWER connector on the Main board?
•
No
Yes Replace the Power Supply Unit (High Voltage).
No Does a fuser unit error occur after more than 120 seconds from the power-on?
No Go to
Yes Turn the power OFF/ON.
Replace the Main board.
▼
•
▼
•
•
A
▼
•
▼
•
Is the heater of the fuser unit turned on? (When the heater is turned on, heat is radiated.)
•
•
•
Yes Is a cable of the thermistor connected to "CN8" connector on the
Power Supply Unit (High Voltage)?
B
No
Is a cable of the heater connected to "CN2" connector on "Power
Supply Unit" (120V or 230V)
▼
To on the next page
B
.
▼
A
To on the next page
.
40930701TH DRAFT Vesion
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From on the preceding page
.
A
From on the preceding page
.
B
•
Yes Replace the fuser unit.
Is the printer recovered?
▼
•
•
No
Replace the Main board.
▼
•
YES END.
▼
•
No
Is the heater or thermistor open?
Measure the resistance between the thermistor contacts, and between heater
contacts (normal resistance: 220 kΩ (25°C) between pins 1 and 2, 1.5 Ω (120 V)
and 5.8 Ω (240 V) between pins 3 and 4) (See Chapter 7.3.)
•
Yes Replace the fuser unit.
▼
•
No
Is the AC voltage applied to the CN2 connector on the Power Supply Unit
(AC120V or 230V)? (See Figure 6-3)
•
No
Is CN2 connector connected to the Power Supply Unit (AC120V or 230V)?
•
No
Connect the CN2 connector to the Power Supply Unit (AC120V or
230V) properly.
▼
•
Yes Is Pin 6 (HEAT ON signal) of the POWER connector of the Main board turned
on? (In heater on state, this pin is set to 0 V).
•
No
Replace the Main board.
▼
•
Yes Replace the Power Supply Unit (High Voltage).
▼
•
YES Go to
.
B
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5
I/F time-out between printer and optional tray (ERROR 81) .
•
Is an optional tray (2nd / 3rd tray or envelope feeder) used?
•
Yes Is the connection between the Main board and the optional tray connected
properly. (See Chapter 7.1.)
•
No
Connect the cable properly.
▼
•
Yes Replace the Main board.
Is the printer recovered?
▼
•
•
No
Isolate the trouble by following the 2nd/ 3rd tray or multi feeder
maintenance manual. (See Appendix C or D.)
▼
•
YES END
Replace the Main board.
▼
•
No
6
I/F time-out between printer and Duplex Unit (ERROR 83)
•
Is an Duplex Unit used?
•
Yes Is the connection between the Main board and the Duplex Unit connected
properly. (See Chapter 7.1.)
•
No
Connect the cable properly.
▼
•
Yes Replace the Main board.
Is the printer recovered?
▼
•
•
No
Isolate the trouble by following the Duplex Unit maintenance manual.
(See appendix C.)
▼
•
YES END
Replace the Main board.
▼
•
No
7
I/F time-out occurs between the printer and the operator panel (ERROR 80) .
•
Is the connecting cord of the operator panel connected to the PANEL connector of the
Main board properly? (See Chapter 7.1.)
•
No
Connect the connecting cord of the operating panel to the PANEL connector of
the Main board properly.
▼
•
Yes Is the connecting cord defective?
Yes Replace the connecting cord.
•
▼
•
No
Replace the operator panel assembly.
▼
•
Is the printer recovered?
•
No
Replace the Main board.
▼
•
YES END
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8
Message cannot be received through the parallel interface.
•
Is the parallel I/F ENABLE in "HOST I/F" item of Menu 1.
•
No
Set the Parallel I/F to "ENABLE".
▼
•
Yes Is the host set to the bidirectional communication?
•
Yes Set the parallel I/F to the bidirectional communication enable state (DISABLE
→ ENABLE) in menu level 2.
▼
•
No
Set the parallel I/F to the bidirectional communication disable state (ENABLE
→ DISABLE) in menu level 2.
▼
•
Is the printer recovered?
YES END
•
▼
•
No
No
Is the connector of the parallel interface cable connected to the printer prop-
erly?
•
Connect the connector of the parallel interface cable to the printer properly.
▼
•
Yes Is there any defect in the cable (broken or bent pin, broken wire)?
Yes Replace the parallel interface cable.
•
▼
•
No
Replace the Main board or ask the user to check the hardware and software at
the host side.
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9
Message cannot be received through the serial interface.
•
Is message ERROR HOST I/F displayed ?
•
Yes Set the RS 232C I/F ENABLE in "HOST I/F" items of Menu 1.
No Set the RS 232C I/F to "ENABLE".
•
▼
•
No
No
Do the following items selected for RS232C SERIAL in menu level 2 coincide
with those selected at the host side ?
• FLOW CONTROL • PARITY
• BAUD RATE
• DATA BITS
• MIN. BUSY
•
If the selection differs between the printer and the host, change the setting of
the above items in menu level 2 so as to coincide with the setting at the host
side.
▼
•
Yes Is the connector of the serial interface cable connected to the printer properly ?
No Connect the connector printer properly.
•
▼
•
Yes Is there any defect in the serial interface cable(broken or bent pin, broken wire) ?
Yes Replace the serial interface cable.
•
▼
•
No
Perform the loop back test using the loop test function in the system mainte-
nance mode. (To make this test, it is necessary to form the following loop back
connector. Connect the loop back connector to port instead of connecting the
host.)
▼
•
Is LOOP TEST displayed ?
ERROR
•
No
Is the printer recovered ?
YES END
Replace the Main board.
Replace the serial interface cable.
▼
•
•
▼
•
No
▼
•
Yes Replace the Main board or ask the user to check the hardware and software at
the host side.
2 TD
loop back connector
3RD
4RTS
Serial interface cable
5CTS
8 NOT USED
11 SSD
6 DSR
20 DTR
DB25S
Connection method
Test connector connecting drawing
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0
Data cannot be received through the OKI HSP interface
•
Is the interface board (option) connected to the OKI HSP interface connector on the Main
board properly?
•
No
Connect the interface board (option) to the OKI HSP interface connector
properly.
▼
•
Yes Is there any broken or bent pin in the interface board (option)?
Yes Ask the user to replace the interface board (option).
•
▼
•
No
Replace the Main board.
▼
•
OK?
No
•
A trouble may exist in the interface board (option), interface cable or host side.
Ask the user to check these items.
A
Synchronous serial I/O error (ERROR 74)
•
Are POWER connector of the Main board and Connection cord-wire (Figure 8-2 No.21)
properly?
Are Connection cord-wire (Figure 8-2 No.21) and CN3 connector of the Power Supply Unit
(AC120V or 230V) connected properly?
•
No
Connect the connectors properly.
▼
•
Yes Is there any flaw or breake ?
Yes Replace the connection cord-wire.
Yes Replace the Main board.
Is the printer recovered?
•
▼
•
▼
•
•
No
Replace the Power Supply Unit (High Voltage).
▼
•
YES END
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6.5.3 Image troubleshooting
Procedures for troubleshooting if abnormal images have been printed out are explained
below. Figure 6-3 below shows typical abnormal images.
Trouble
Flowchart number
A
D
Images are light or blurred as a whole (Figure 6-4,
Dark background density (Figure 6-4,
)
1
2
3
4
5
6
7
)
B
Blank paper is output (Figure 6-4,
)
C
Black belts stripes in the vertical direction (Figure 6-4,
)
Cyclical defect (Figure 6-4,
Print voids
)
E
Poor fusing
(images are blurred or peeled off when touched by hands)
White belts streaks in the vertical direction (Figure 6-4,
)
8
9
0
F
Snowy print of high density pattern (Figure 6-4,
)
H
Blockly faded print (Figrue 6-4,
)
I
D
Black stripes in the
vertical direction
A
B
C
Light or blurred
images as a whole
Dark background
density
Blank paper
E
Cyclical defect
F
White belts or
streaks in the
vertical direction
H
Snowy print of
highdensity pattern
I
Blockly faded print
Figure 6-4 Abnormal images
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1
Image are light or blurred a whole.
•
Is toner low? (Is the TONER LOW message displayed?)
•
No
•
Yes Supply toner.
▼
•
Is paper of the specified grade used?
No
Use paper of the specified grade.
▼
•
Yes
•
Is the lens surface of the LED head dirty?
Yes Clean the lens.
▼
•
No
Is the LED head installed properly? (Check connector HEAD1 (14P), HEAD2
(12P) of the Main board and PC connector on the LED head for proper connec-
tion.)
•
No
No
Install the LED head properly.
▼
•
Yes
Is the contact plate of the transfer roller contacted with the contact assembly of the
Power Supply Unit (High Voltage) properly? (See Figure 6-6.)
•
Make the contact plate of the transfer roller contact with the Power Supply Unit
(High Voltage) and Shaft of the transfer roller properly.
▼
•
Yes
Are the contact of the developing roller and the contact of the toner supply roller of
the image drum cartridge contacted with the contact assembly properly?
A
B
(See Figure 6-5
and
.)
•
No
Adjust the contacts of the developing and toner supply roller to contact the
contact assembly properly.
▼
•
Yes
Replace the transfer roller. (See 3.3.36.)
▼
•
Has the trouble been removed?
•
YES END
Replace the image drum cartridge.
▼
•
No
▼
•
Has the trouble been removed?
•
YES END
Note:
After replacing the image drum cartridge, set the printer in the user
maintenance mode by turning the power on while pressing the MENU
key and reset the drum counter. (Refer to User's Manual.)
▼
•
No
Replace the Main board or Power Supply Unit (High Voltage).
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2
Dark background density
•
Has the image drum been exposed to external light?
•
No
•
Yes Mount the image drum in the printer and wait for about 30 minutes.
Is the heat roller of the fusing unit dirty?
▼
•
Yes Clean the heat roller.
▼
•
No
Is the contact of the cleaning roller of the image drum cartridge contacted with e
contact assembly properly? (See Figure 6-5 .)
C
•
No
Adjust the contact of the cleaning roller to contact the contact assembly prop-
erly.
▼
•
Yes
Replace the image drum cartridge.
▼
•
Has the trouble been removed?
•
YES END
Note:
After replacing the image drum cartridge, set the printer in the user
maintenance mode by turning the power on while pressing the MENU
key, and reset the drum counter. (Refer to User's Manual.)
▼
•
No
Replace the Main board or Power Supply Unit (High Voltage).
3
Black paper is output.
•
Is the LED head connected properly? (Check connector HEAD1 (14P), HEAD2 (12p) on
the Main board and PC connector on the LED head.)
•
No
Connect the LED head properly or replace the head cable.
▼
•
Yes
Is the contact of the image drum cartridge contacted with the ground contact
D
properly. (See Figure 6-5
.)
•
No
No
Check the ground contact of the image drum cartridge.
Check the connectors HEAD1 (14P) and HEAD2 (12P)
Replace the LED head.
▼
•
Yes
•
▼
•
Yes
Replace the connector
▼
•
Has the trouble been removed.
•
YES END
Note:
After replacing the LED head, set the printer in the engine mainte-
nance mode by turning the power on while pressing the FORM FEED
and ENTER keys. Set the LED head drive time. (Refer to Section
4.2.)
▼
•
No
Replace the Main board or Power Supply Unit (High Voltage).
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4
Black belts or stripes in the vertical direction
•
•
Replace the image drum cartridge.
Has the trouble been removed?
•
YES END
Note:
After replacing the image drum cartridge, set the printer in the user
maintenance mode by turning the power on while pressing the MENU
key, and reset the drum counter, (Refer to User's Manual.)
▼
•
No
Replace the LED head.
▼
•
Has the trouble been removed.
•
YES END
Note:
After replacing the LED head, set the printer in the engine mainte-
nance mode by burning the power on while pressing the FORM FEED
and ENTER keys. Set the LED head drive time.
(Refer to Section 4.2.)
▼
•
No
Replace the Main board or Power Supply Unit (High Voltage).
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5
Cyclic error
Frequency
Remedy
Replace or clean the image drum cartridge.
Replace the image drum cartridge.
Replace the image drum cartridge.
Replace the image drum cartridge.
Replace the image drum cartridge.
Replace the transfer roller.
Image drum
3.71” (94.2 mm)
2.05” (52.1 mm)
3.24” (82.24 mm)
1.37” (34.7 mm)
1.17” (29.8 mm)
2.28” (58 mm)
3.46” (88 mm)
3.46” (88 mm)
Developing roller
Toner supply roller
Charging roller
Cleaning roller
Transfer roller
Heat roller
Replace the fusing unit assy.
Back-up roller
Replace the back-up roller.
Notes:
1.
After replacing the image drum cartridge, set the printer in the user maintenance mode
by turning the power on while pressing the MENU key, and reset the drum counter.
(Refer to User’s Manual.)
2
After replacing the fusing unit assy, set the printer in the engine maintenance mode by
turning the power on while pressing the FORM FEED and ENTER keys, and reset the
fuser counter. (Refer to See 4.1.)
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6
Print voids
•
Is the contact plate of the transfer roller contacted with the Power Supply Unit (High
Voltage) properly? (See Figure 6-5.)
•
No
Adjust the contact plate contact to contact the Power Supply Unit (High Volt-
age) properly and the shaft of the transfer roller.
▼
•
Yes
Replace the transfer roller. (See 3.3.36.)
▼
•
Has the trouble been removed.
•
YES END
▼
•
No
Are the contacts of the toner supply roller, developing roller, image drum and
charging roller contacted with the contact assy properly?
A
(See Figure 6-5
,
B
,
C
,
D
,
E
.)
•
No
Adjust the contacts to contact the contact assy properly.
Replace the image drum cartridge.
▼
•
Yes
▼
•
Has the trouble been removed?
•
YES END
Note:
After replacing the image drum cartridge, set the printer in the user
maintenance mode by turning the power on while pressing the MENU
key, and reset the drum counter. (Refer to User’s Manual.)
▼
•
No
Is the LED head installed properly? (Check connector HEAD1(14p), HEAD2
(12p) on the Main board and PC Connector
on the LED head.)
•
No
Install the LED head properly.
▼
•
Yes
Replace the LED head or the head cable.
▼
•
Has the trouble been removed?
YES END
▼
•
Note:
After replacing the LED head, set the printer in the engine mainte-
nance mode by turning the power on while pressing the FORM FEED
and ENTER keys. Set the LED head drive time. (Refer to Section
4.2.)
▼
•
No
Replace the Main board or Power Supply Unit (High Voltage).
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7
Poor fusing
•
Is paper of the specified grade used?
•
Yes
•
No
No
No
Use paper of the specified grade.
▼
•
Is the spring of the back-up roller normal?
Replace the spring.
▼
•
Yes
•
Is the contact of the fusing unit assy contacted with the contact assy properly?
Adjust the contact of the fusing unit assy to contact the contact assembly
properly.
▼
•
Yes
Replace the fusing unit assy.
▼
•
Has the trouble been removed?
•
YES END
Replace the Main board or Power Supply Unit (High Voltage).
▼
•
No
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8
White belts or streaks in the vertical direction
•
Are the LED lens dirty?
•
Yes Clean the LED lens.
▼
•
No
Is the contact plate of the transfer roller contacted with the Power Supply Unit
(High Voltage) properly?
(See Figure 6-6.)
•
No
Make the contact plate contact with the Power Supply Unit (High Voltage)
properly.
▼
•
Yes
Replace the transfer roller. (See 3.3.36.)
▼
•
Has the trouble been removed?
•
YES END
Is the LED head installed properly? (Check connector HEAD1 (14p), HEAD2
▼
•
No
(12p) on the Main board and PC connector
on the LED head.)
•
No
Install the LED head properly.
Replace the LED head.
▼
•
Yes
▼
•
Has the trouble been removed?
•
YES END
Note:
After replacing the LED head, set the printer in the engine mainte-
nance mode by turning the power on while pressing the FORM FEED
and ENTER keys. Set the LED head drive time.
(Refer to Section 4.2.)
▼
•
Yes
Replace the image drum cartridge.
▼
•
Has the trouble been removed?
•
YES END
Note:
After replacing the image drum cartridge, set the printer in the user
maintenance mode by turning the power on while pressing the MENU
key. Reset the drum counter. (Refer to User’s Manual.)
▼
•
No
Replace the Main board or Power Supply Unit (High Voltage).
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9
Snowy print of high density pattern
•
Is toner low?
•
No
•
Yes Supply toner.
▼
•
Is paper of the specified grade used?
Use paper of the specified grade.
Is the lens of the LED head dirty?
No
▼
•
Yes
•
Yes Clear the lens.
▼
•
No
•
Is the LED head installed properly?
No
Install the LED head properly.
▼
•
Yes
Increase the printer setting number (±0 →+1) (Refer to User's manual.)
0
Blockly faded print
•
Is toner low?
•
No
•
Yes Supply toner.
▼
•
Is paper of the specified grade used?
Use paper of the specified grade.
Is the lens of the LED head dirty?
No
▼
•
Yes
•
Yes Clear the lens.
▼
•
No
•
Is the LED head installed properly?
No
Install the LED head properly.
▼
•
Yes
Decrease the printer setting number (±0 →–1) (Refer to User's manual.)
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E
D
C
B
A
Figure 6-5
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Figure 6-6
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7.
WIRING DIAGRAM
7.1
Interconnect Signal Diagram
L E D H E A D 2 6 P
P A P R N S
S D R
I N S N S
D A T A
C L K
1 2
1 1
1 0
9
8
O U T S N S
7
G N D
G N D
6
5
5 V
4
3
2
1
T H 2
T H 1
G N D
G N D
3 8 V
C N 7
C N 6
T H E R M C H K
I N S N S
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1
1 0
9
+ 8 V
- 8 V
F A N O N
F A N A L A R M
3 8 V
3 8 V
G N D
G N D
3 V
1
2
5 V
G N D
S T K F U L L
3
3 V
5 V
5 V
F A N A A R M
G N D
3 8 V
G N D
G N D
G N D
G N D
O U T S N S
8
A C
A C
C O V E R O P E N
7
H E A T T O N
6
P A P E R S N S
5
R X D
4
T X D
C L K
3
2
L D
1
S I Z E 3
S I Z E 2
S I Z E 1
S I Z E 0
G N D
6
5
4
3
2
1
5 V
4 P
E N V E L O P E 7 P
M O T O R C L R
2 P
3 P
C L H
3 P
E N D
4 P
L O W
P A N E L 6 P
F R O N T 9 P
2 N D T R A Y 7 P
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2
1
38V
GND
38V
GND
1
2
CLUTCH
SOLENOID
GND
DUPINSENS
5V
1
2
3
BOARD-LEX
INLET SENSOR
1
2
3
4
PH1N
PH1P
PH2N
PH2P
MAIN
MOTOR
1
2
3
GND
PAPERLOW
5V
FRONT SENSOR
DUPLEX 12P
to Printer Unit
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7.2
PCB Layout
(1) Main board (BOARD-FFF)
1 4
1
2 5
1 3
R S 2 3 2 C
1 9
1 1
3 6
1 8
C E N T
P C L R O M ( E V E N 0 )
P C L R O M ( E V E N 1 )
P S R O M ( E V E N )
P C L R O M ( O D D 0 )
P C L R O M ( O D D 1 )
P S R O M ( O D D )
C 1
A 1
C 3 2
A 3 2
M U P I S
D R A M
D R A M
F S I M M S 1 I M M 1 S I M M 2
H O P P I N G
M A I N
I C 1 9
P A N E L
9
1
7
1 4
2
1 2
1
1
3 1
1
7
1
1 3
4
2
6
1
5
C L R C L H
F R O N T
E N V E L O P M E O T O F R A N
E N D
L O W
2 N D T R A Y
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(2) Power supply board (AC120V/230V)
P C 5 0 1
F 2
F 1
C N 6
(3) Power supply board (High voltage)
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(4) LEX-PCB
F S E N S
1
3
1
1
4
S L 2
I N S E N S
1
1 8
1
4
1
C L U T C H
(5) Flash ROM module (BOARD-FSL or BOARD-FSL-2)
ROM1
ROM0
EEPROM
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Unit
Circuit Diagram
Illustration
Resistance
Red
1
2
M
Between pins 1 and 2: 3.1
Between pins 3 and 4: 3.1
Ω
Ω
Yellow
Motor-Main
Blue
3
4
Orange
Thermostat
to "CN2" connector
on the Power Supply
Unit (AC120V or
230V)
3
Heater
Between pins 1 and 2: 220k
Between pins 3 and 4: 1.5
5.8
Ω
(at 25°C)
4
1
Ω
(120V)
(240V)
Fusing Unit
Thermistor
to "CN8" connector
on the Power Supply
Unit (High Voltage)
Ω
2
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7.4
Program/Font ROM Location
(1) In case of EP ROM or OTP ROM
STKFULL
HEAD2
HEAD1
2
1
12
11
1
3
1
2
71
72
13
14
1
2
1
2
71
72
1
2
71
72
IC5
IC6
IC31
Note
IC7
IC8
IC30
5
6
1
2
1
2
25
26
1
12
DUP
SIZE
POWER
Note: short plug (TA1) setting
setting: 1pin–2pin
40439501
40439601
40439701
40439801
TA1
3 pin
1 pin
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(2) In case of MASK ROM
STKFULL
HEAD2
HEAD1
2
1
12
11
1
3
1
2
71
72
13
14
1
2
1
2
71
72
1
2
71
72
IC5
IC6
IC31
Note
IC7
IC8
IC30
5
6
1
2
1
2
25
26
1
12
DUP
SIZE
POWER
Note: short plug (TA1) setting
setting: 2pin–3pin
TA1
*** : 075 or 080
*** : 074 or 079
MX23C2410PC-10-***
MX23C2410PC-10-***
3 pin
1 pin
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8.
PARTS LIST
7
4
5
8
9
11
3
19
20
12
21
22
6
17
18
2
13
10
1
16
15
14
23
Figure 8-1 Printer Unit
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Table 8-1 Printer Unit
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
0
0
2
2
2
0
1
1
1
4
100
3
3
3
3
3
3
3
3
3
5
3
3
3
3
3
3
3
3
3
5
5
5
3
2
2
2
8
1000
1
2
3
4
5
6
7
40441001
Cover-Side(L) Ass.
Cover-Side(R)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
#
#
#
#
#
#
#
#
#
#
40304101
40304401
40304301
40323401
40304001
40304506
40304503
40304507
2381002P0007
6
Cover-Frame
6
Cover-Side(I/F)
6
Plate-Shield
6
Cover-Rear
6
Frame-OP panel Ass. (ODA)
Frame-OP Panel Ass. (OEL)
Frame-OP panel Ass. (INT)
SMCD6X280BDX10(BL)
6
6
6
8
9
10
6
2PA4128-1074G001 Face-up Stacker Assy
10 40441301
11 40027002
Manual Feed Assy
ROLLER-Transfer
6
#
#
6
12 4PP4076-5042P001 TR Gear
6
13 40378001
14 40378401
15 40927901
16 40496001
Contact Assy
6
#
#
#
#
CASE Assy.-Cassette
Frame Assy.-Separation
PLATE-Damper
6
6
6
17 4PP4076-5067P001 Earth Plate BK (R)
6
18 40875702
19 8174627M0004
20 8174627M0003
21 40295701
22 40405419
40405420
Board-FFF
10
10
10
6
# Without ROM
MX23C2410PC-10-080(Program ROM)
MX23C2410PC-10-079(Program ROM)
Connection Cord Wire(Power Supply)
Board-FSL
#
10
10
10
12
Flash ROM module(4MB)
Flash ROM module(8MB)
PS ROM module
#
Board-FSL-2
40681204
Board-MSM-2
23 40443502
DUPLEX UNIT (ODA)
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53
51
52
55
24
64
65
25
56
61
47
20
23
8
44
66
56
6
68
7
57
45
19
20
50
27
49
29
33
6
7
67
58
22
34
18
32
13
59
62
48
14
3
12
31
21
11
35
17
25
5
37
38
30
36
54
28
26
42
40
41
63
15
10
39
2
10
16
1
9
43
9
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Table 8-2 Frame-Main Unit (1/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
100
1000
1
2
3
4
5
6
7
8
9
40596901
4LB-192600-6
FRAME Assy-Main
1
1
2
1
3
6
For Maintenance
Spring(TSP3.3/0.35-16.2*33.9/230G)
0
3
6
4PB4083-6197P001 Damper
2
6
12
40315801
LEVER-Separator
1
2
2
1
2
2
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
0
0
0
0
0
0
0
0
0
1
1
2
1
1
1
1
0
0
0
1
1
0
0
0
0
0
0
3
6
6
3
6
6
3
3
3
3
3
3
3
3
3
6
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
6
12
12
6
#
#
4PP4076-5035P001 TR Bearing
4PP4076-5039P001 TR Spring R
40299701
40032901
GUIDE ASS.-Discharge
Sensor-In
12
12
6
10 40033001
Spring-In Sensor
11 3PP4076-5082P001 Write Sensor Lever
12 4PP4076-5086G001 Toner Sensor Lever (Adhesive)
6
13 40583801
14 40324001
LEVER Assy.-Out sensor
SPRING-Out Sensor
6
#
#
6
15 4PP4076-5047P001 EP Lock Shaft
6
16 4PA4076-5048G001 EP Rock Lever L Assy
6
17 40597001
18 40301601
19 40301701
20 40614401
21 40301801
22 40301901
23 40323901
Code Ass.-Front
6
#
#
#
ROLLER-Regist
6
ROLLER-Pressure
Bearing Assy.-Registration
GEAR-Regist
6
12
6
#
#
#
GEAR-Pressure
6
ROLLER-Feed (C)
6
24 4PP4076-3949P001 Bush
6
25 40316301
26 40302401
27 40298201
28 40298301
29 40298801
30 40893501
31 40893701
32 40893801
33 40302201
34 40299301
35 40299401
GEAR-Roller (C)
6
#
#
#
#
#
#
#
#
#
#
#
GEAR-Idle K
Motor Ass.-Main
MOTOR-Main
PLATE-Damper
GEAR-Idle A
GEAR-Idle B
GEAR-Idle C
GEAR-Idle D
GEAR-Idle E
GEAR-Idle F
6
6
6
6
6
6
6
6
6
6
40930701TH DRAFT Vesion
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Table 8-2 Frame-Main Unit (2/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
0
0
0
0
0
1
0
2
1
0
0
1
0
0
0
2
2
2
2
1
1
0
0
2
1
1
0
2
0
1
0
0
2
1
1
100
1000
36 40299501
37 40299601
38 40302301
39 40313501
GEAR-Idle G
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
3
6
#
#
#
#
GEAR-Idle H
3
6
GEAR-Idle J
3
6
BEARING-Plastic (Feed)
3
6
40 4PP4076-5308P001 Bearing
3
6
41 40371501
42 40432301
43 40313201
44 40371601
GEAR Assy.-Clutch (Z50)
3
6
#
#
#
#
PLATE-FG (1st)
3
6
ROLLER Ass.-Feed
GEAR Assy.-Clutch (Z40)
6
12
6
3
45 4PP4076-5044P001 EP Rock Lever R
46 4PP4076-5045P001 EP Lock Spring
3
6
3
6
47 40301001
48 40316101
49 40316201
50 40302501
51 40929101
40929102
ROLLER ASS.-BK
3
6
#
#
#
#
#
#
#
#
#
GEAR-Idle (EA)
3
6
GEAR-Idle (EB)
6
12
6
LEVER-Back up release
HEAT-Assy (A4 120V)
HEAT-Assy (A4 230V)
LAMP-Halogen 750W 120V
LAMP-Halogen 750W 230V
GUIDE Assy.-Eject
3
10
10
5
20
20
10
10
6
52 40306401
40306402
5
53 40307401
3
54 4PP4076-5191G001 Damper Arm (Caulking)
55 40587001 Stacker Assy (For Maintenance)
56 4PP4128-1164P001 HEAD Spring
3
6
3
6
#
6
12
10
6
57 40365401
58 40409201
59 40409301
SENSOR-Stack Full
5
#
#
#
Film-Guide
Film-FG
3
3
6
60 2PP4128-1096P001 Cable Cover
3
6
61 40450501
HEAD Cable Assy
5
10
6
#
62 4PP4076-5009P001 Washer
63 3PB4076-5290P001 DC Fan Motor (92)
3
3
6
64 40307201
PLATE-FG (F)
3
6
#
#
#
65 40443301
Feeder Unit-FRONT
LED-HEAD
3
6
66 40547201
10
3
20
6
67 105A1046C1001
ZCAT1325-0530A R CORE
68 4PP4043-4489P001 Bearing
3
6
40930701TH DRAFT Vesion
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32
23
25
33
31
53
52
38
48
26
30
47
39
36
34
36
37
40
51
44
45
35
24
54
41
27
28
27
42
43
31
29
46
49
18
20
18
21
3
48
50
10
50
19
1
14
2
3
9
48
8
16
8
17
13
9
15
7
6
5
6
4
11
5
22
Figure 8-3 Base Unit
40930701TH DRAFT Vesion
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Table 8-3 Base Unit (1/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
1
1
2
1
2
2
0
2
0
1
1
1
1
1
0
0
1
2
1
0
0
0
1
0
0
0
0
2
1
1
2
1
1
1
1
100
3
3
6
3
6
6
6
6
6
3
3
3
3
3
3
3
3
6
3
3
3
3
3
3
3
3
6
6
3
3
6
3
3
3
3
1000
1
2
3
4
5
6
7
8
9
40377601
40597101
GUIDE Assy.-Cassette(L)
GUIDE-Cassette (L)
1
1
2
1
2
2
2
2
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
2
1
1
1
1
6
#
6
# For Maintenance
4PP4122-1217P001 Pull Block
12
6
40349102
40349701
Lever-Link (Caulking)
ROLLER-Link
#
#
12
12
12
12
12
6
4PP4076-5358P001 Rink Support
40928101 Spring-Sheet
#
4PP4076-5359P001 Cassette Stopper
4PP4043-4526P001 Pressure Coil Spring
10 40445601
11 40377701
12 40597201
13 40349101
14 40368302
15 2201000P0140
Earth Plate L
#
GUIDE Assy.-Cassette(R)
GUIDE-Cassette (R)
Lever-Link (Caulking)
Board PXC-2
6
#
6
# For Maintenance
6
#
6
#
Connector (IMSA-9714N-14A)
6
#
16 4YS4011-4448P003 Nylon Connector Cord
17 4PP4076-5360P001 Detector Spring
6
To 2nd Tray
6
18 40389801
19 40518501
20 2201000P0141
21 40375001
22 40316901
23 40377801
24 40597301
25 40322101
26 40317401
27 40442501
28 40371301
29 40317601
30 NK3-16SUS
PLATE-Earth (Bottom)
PLATE-Earth (Link)
Connector (IMSA-9714N-14B)
Connection Code-Wire
PLATE-Bottom
12
6
#
#
6
#
6
# To Duplex
6
#
FRAME ASS.-Hopping
FRAME-Hopping
6
#
6
# For Maintenance
PLATE-Hopping (caulking)
SHAFT-Hopping
6
#
#
#
#
#
6
ROLLER-Guide
12
12
6
ROLLER-Assy.-Hopping
GEAR-Z38
Knock Pin
6
31 4PP3522-3568P001 ADF Bearing
12
6
32 40325401
33 40325301
34 40317901
35 40318001
GEAR-Z58
#
#
#
#
GEAR-Z42
6
Lever-Paper end
Lever-Paper near end
6
6
40930701TH DRAFT Vesion
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Table 8-3 Base Unit (2/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
2
0
0
0
1
1
0
1
0
0
2
0
3
0
2
1
2
2
2
0
1
100
6
3
3
3
3
3
3
3
3
3
6
3
9
3
6
3
5
5
5
3
3
1000
12
6
36 4YB4120-1137P001 FX050 Photo Sensor
2
1
1
1
1
1
1
1
1
1
1
1
3
1
2
1
1
1
1
1
1
37 40375202
38 40375302
39 40337301
40 40337601
41 40433701
42 40358101
43 40317701
44 40367101
45 40928201
46 40313201
47 40371901
48 105A1051C2001
49 40298001
50 40494601
51 40298101
52 40159901
40160001
Connection Code-Wire
Connection Code-Wire
LEVER-Sub roller (caulking)
ROLLER-Link (Sub)
# To Paper End
6
#
#
#
#
#
#
#
#
#
#
To Paper Near End
6
6
Bracket-Sub roller (Press fitting)
Plate-Planet
6
6
GEAR-Planet (z28)
6
BRACKET-Spring (Sub)
SPRING-Sub Roller
6
6
ROLLER Ass.-Feed
12
6
SPRING-Release
TR-23-11-14 R CORE
PLATE-Base
18
6
#
#
#
Spacer-Card (KGPS-5RF)
FILM-Insulation
12
6
Power Supply Unit [AC-DC (120V)]
Power Supply Unit [AC-DC (230V)]
Power Supply Unit (High Voltage)
BRACKET-AC
10
10
10
6
# ODA (120V)
# ODA(230V)/OEL/INT
53 40160301
54 40307301
55 40912701
#
#
STOPPER-Lockout(Dup)
6
40930701TH DRAFT Vesion
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27
25
36
28
25
27
37
22
38
46
23
24
41
44
26
42
35
14
25
39
47
19
30
29
44
41
21
34
40
34
31
33
33
4
32
5
18
49
2
4
5
20
4
3
7
5
2
18
6
9
2
5
11
7
3
6
2
9
4
45
8
8
16
15
1
10
43
45
17
13
14
43
12
Figure 8-4 Duplex Unit
40930701TH DRAFT Vesion
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Table 8-4 Duplex Unit (1/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
1
6
4
4
4
2
2
2
2
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
3
1
2
1
1
1
1
1
2
2
1
100
1000
1
2
3
4
5
6
7
8
9
40658401
COVER-Upper(DUP)(Affix)
ROLLER-Pinch
1
6
4
4
4
2
2
2
2
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
3
1
2
1
1
1
1
1
2
2
1
3
6
#
#
#
#
#
#
#
#
#
#
#
#
#
40339401
40382201
40393201
40393202
40393301
40457701
40457801
40443801
18
12
12
12
6
36
24
24
24
12
12
12
12
6
SHAFT-Pinch
SPRING-Pinch(U)
SPRING-Pinch(U)
SPRING-Pinch(R)
BRACKET-Pinch(R)
SHAFT-Pinch(R)
6
6
LEVER-Lock Ass
6
10 40541501
11 40541502
12 40338701
13 40393601
SPRING-Lock(frame)
SPRING-Lock(frame)
LEVER-Sensor(D-IN)
SPRING-Sensor(D-IN)
3
3
6
3
6
3
6
14 4YB4120-1137P001 FX50 Photo Sensor
6
12
6
15 40598001
16 2201000P0140
17 40375201
18 40461601
19 40297201
20 40597501
21 40921801
22 40381801
23 40381901
Core Assy.-DUPLEX
Connector(IMSA-9714N-14A)
Connection Code-Wire
FILM-Pinch(R)
3
#
#
3
6
3
6
# To IN Sensor
6
12
6
#
#
#
FRAME-Main(DUP)
GEAR Assy
3
3
6
Motor-Pulse
3
6
ROLLER-Feed(F)
ROLLER-Feed(R)
3
6
#
#
3
6
24 4PP4043-4489P001 Bearing-Feed
25 4PP4076-3949P001 Bush
3
6
6
12
6
26 40339901
27 40340301
28 40448101
29 40382001
GEAR-Z40S6
3
#
#
#
#
PULLEY-MXL25
Mini-Pitch Belt
6
12
6
3
ROLLER-Feed(RV)
3
6
30 4PP4076-5345P001 Bearing L
3
6
31 4PP3527-5355P001 FX30 Bearing
3
6
32 40339801
33 40338901
34 40386501
35 40375301
GEAR-Z48S8
3
6
#
LEVER-Sensor(F/R)
SPRING Sensor(F/R)
Connection Code-Wire
6
12
12
6
#
6
#
3
# To Front Sensor
40930701TH DRAFT Vesion
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Table 8-4 Duplex Unit (2/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
1
1
1
1
1
2
1
2
2
2
2
2
1
1
100
1000
36 40483401
37 40395501
38 40382601
39 40322901
40 40382801
41 NK2-12SUS
42 RE4-SK
SOLENOID Ass
1
1
1
1
1
2
1
2
2
2
1
1
1
1
3
6
#
#
#
#
#
SPRING-SL
3
6
PLATE-Earth(F/R)
PLATE-Earth(F/R-2)
PLATE-Earth(BTM)
Knock Pin
3
6
3
6
3
6
6
12
6
E Ring
3
43 40339102
44 40338601
45 40393701
46 40495804
47 40942601
48 40318201
49 40382701
LEVER-Lock(DUP)
LEVER-Release(DUP)
SPRING-Support
Board-LEX
6
12
12
12
10
10
6
# Color : Black
6
#
6
#
5
# Without ROM
Program ROM(IC1)
COVER-Bottom(DUP)
Earth(MTR)
5
#
#
#
3
3
6
40930701TH DRAFT Vesion
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Appendix A
CENTRONICS PARALLEL INTERFACE
1) Connector
•
•
Printer side : 36-pin receptacle
Type 57RE-40360-830B-D29 (made by DDK) or equivalent
Cable side : 36-pin plug
Type 57-30360 (made by DDK) or equivalent
2) Cable
Cable length : 6 ft (1.8 m) max.
•
(a shielded cable composed of twisted pair wires is recommended for noise prevention)
Note: Cable is not provided.
3) Table of parallel I/F signals
Pin No. Signal name
Signal direction
Compatible
Nibble
ECP
1
2~9
10
DATA STROBE
→
→
←
←
←
←
→
-
PR
PR
PR
PR
PR
PR
PR
nStrobe
Host Clk
Data 1 (LSB) ~ 8 (MSB)
Ptrclk
Host Clk
DATA BIT - n
ACKNOWLEDGE
nAck
Busy
PeriphClk
PeriphAck
nAck Reverse
Xflag
11
BUSY
PtrBusy
12
PAPER END
Perror
Select
nAutoFb
AckDataReq
Xflag
13
SELECT
14
AUTO FEED
HostBusy
HostAck
15
-
-
16
0V
-
Signal Ground
Chassis Ground
+5V Supply (50mAm)
Signal Ground
Signal Ground
Singal Ground
Signal Ground
Signal Ground
17
CHASSIS GROUND
-
18
+5V
←
-
PR
19
0V
20~27
28
0V
-
0V
-
29
0V
-
30
0V
-
31
INPUT PRIME
FAULT
0V
→
←
-
PR
PR
nlnit
nlnit
nReverseRequest
nPeriphRequest
32
nFault
nDataAvail
33
-
-
34
-
-
35
HILEVEL
SEL-IN
←
→
PR
PR
High Level
1284 Active
36
nSelectln
1284 Active
•
Connector pin arrangement
40930701TH DRAFT Vesion
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4) Signal level
• LOW
• HIGH
:
:
0 V to +0.8 V
+2.4 V to 5.0 V
5) Interface circuit
a) Receiving circuit
DATA STROBE and INPUT PRIME
+5V
74LS19 or equivalent
C
R1
R2
Signal name
R1
R2
C
DATA STROBE
INPUT PRIME
3.3K
Ω
100
Ω
560pF
3.3K
Ω
1KΩ
0.001µF
DATA BIT-1 to 8
+5V
R3=3.3KΩ
R3
74LS374 or equivalent
b) Sending circuit
+5V
R4=3.3KΩ
R4
7407 or equivalent (Open collector)
40930701TH DRAFT Vesion
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6) Timing charts
■ Compatible mode
a) Data receiving timing
PARALLEL DATA
(DATA BITs 1 to 8)
0.5 µs min.
0.5 µs min.
0.5 µs min.
DATA STOROBE
0.5 µs min.
0.5 µs max.
0 min.
BUSY
0 min.
0 min.
ACKNOWLEDGE
0.5 µs to 10 µs
0 min.
b) On-line → off-line switching timing by ON-LINE SW
ON-LINE SW
BUSY
SELECT
100 ms max.
c) Off-line → on-line switching timing by ON-LINE SW
ON-LINE SW
BUSY
SELECT
ACKNOWLEDGE
0 min.
100 ms max.
0.5 µs to 10 µs
40930701TH DRAFT Vesion
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d) INPUT PRIME timing (when set to the effective INPUT PRIME signal)
50 µs min.
INPUT. PRIME
BUSY
SELECT
5µs max.
0 min.
ACKNOWLEDGE
10 µs max.
0.5 µs to 10 ms
■ Nibble Mode
Conforms to IEEE 1284 spec.
■ ECP Mode
Conforms to IEEE 1284 spec.
40930701TH DRAFT Vesion
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Appendix B
RS-232C SERIAL INTERFACE
1) Connector
• Printer side
• Cable side
:
:
25-pin receptacle
Type 17LE-13250-27 (D4CC) (made by DDK) or equivalent
25-pin plug
Type 17JE-23250-02 (D8C) (made by DDK)
Note: Plug shall be able to be fixed with a lock screw.
2) Cable
• Cable length: 6 ft (1.8m) max. (Cable shall be shielded)
Note: Cable is not provided.
3) Interface signal
Pin No. Signal name
Abbreviation Signal direction
Functions
1
Frame Ground
FG
Frame ground
2
3
Transmitted Data
TD
RD
←
→
←
PR
PR
PR
Transmitted data
Received data
Received Data
4
Request To Send
RTS
Stay space level
(Not connected)
(Not connected)
Signal ground
5
-
6
-
7
Signal Ground
SG
8~17
18
19
20
21~25
-
(Not connected)
+5V (50mA maxx.)
(Not connected)
Data terminal ready
(Not connected)
+5V
←
←
PR
PR
-
Data Terminal Ready
-
DTR
• Connector pin arrangement
13
1
25
14
(View from the cable side)
When the Reade/Busy protocol is used for the buffer busy control method, the busy signal can
be set to Pin-20 (DTR) in the menu.
4) Signal level
• MARK polarity :
• SPACE polarity:
-3V to -15V (LOGIC = 1)
+3V to +15V (LOGIC = 0)
40930701TH DRAFT Vesion
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5) Interface circuit
a) Receiving circuit
75189 or equivalent
OUTPUT
INPUT
+12V
-12V
+3V
-3V
INPUT
b) Sending circuit
75188 or equivalent
OUTPUT
INPUT
OUTPUT
+9V
-9V
+3V
-3V
55ns
45ns
Note: The above signal level is for the case where 3KΩ x 15pF is being connected to the
terminal.
6) Communications protocol
a) READY/BUSY protocol
b) X-ON/X-OFF protocol
40930701TH DRAFT Vesion
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Appendix C
SECOND/ THIRD PAPER FEEDER MAINTENANCE
1.
OUTLINE
Functions
1.1
This high capacity second/ third paper feeder, which is located under the printer, rotates the
hopping motor according to the signal from the printer to supply papers to the printer automati-
cally.
The main functions are as followings:
• Applicable media:
[Paper Type]
•
•
Cut Sheet Size:
Special Size:
A4, A5, B5, Letter, Executive, Legal13, Legal14
Paper Width: 148 to 216mm
Paper length: 210 to 356mm
[Weight]
•
2
60 ~ 105 g/m
2
• Paper loading capacity:
75 g/m paper 530 sheets
1.2
Appearance and Parts Name
Frame side (R) Assy
Cover front Assy
Cassette Assy
Frame side (L) Assy
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2.
DESCRIPTION OF OPERARTION
2.1
Driving Mechanism
The high-capacity second/ third paper feeder only a top paper which is set in the cassette by a
signal from the printer.
(1) Second paper feeder as an example is shown.
First of all, the hopping motor rotates in the direction of arrow A. Roller C rotates by way of
idle gear on the same shaft on which the hopping gear is placed. At the same time,the
planetary gear D shifts in the direction of arrow E and a sub roller gear and a sub roller on
the same shaft rotate. Roller C and sub roller make a paper hop. Also, the planetary gear G
shifts in the direction of arrow H and Roller K rotates, and when the length of sheet is legal
13 inch or more, a hopping paper will be impinged to the regist roller within the printer. When
the length of paper is A4 or less, hopping papers will be carried until the defined amount.
(2) When the length of paper is A4 or less, the hopping roller rotates in the direction of arrow B
next. At this time, the planetary gear G shifts in the direction of arrow I to rotate Roller K and
impinge the papers, which are carried to the defined amount, to the regist roller within the
printer. During the hopping roller is rotating, Roller C is racing because it includes one-way
bearing. Atthesametime, planetarygearDshiftsinthedirectionofarrowFandthesubroller
gear and another sub roller on the same shaft won't rotate.
(3) In the third paper feeder, when the length of paper is legal 13 inch or more, and if the rotating
direction is arrow A', papers will be carried to the defined amount without being impinged to
the regist roller, and then the rotating direction of the hopping roller will be changed to arrow
B'. When the rotating direction of the hopping roller A' arrow direction, the motion is same as
(1). When B' arrow direction, the motion will be same as (2) until Roller K' begin to rotate. The
planetarygearM'willshiftinthedirectionofarrowLbywayofthegearO'whichbegintorotate
at the same time when the roller K' does. And gear N rotates, resulting in rotating the gear
J and roller K on the same shaft, and impingeing papers to the regist roller within the printer.
At this time, as the gear O and gear P engaged by the planetary gear G on the same shaft,
on which the gear J and roller K are placed, includes an one-way clutch gear, the planetary
gear G won't rotate.
Impinged papers are, afterwards, fed by the control of printer's inside.
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"Paper"
Gear O (Engaging to gear P or planetary gear G)
Gear J ( for timing belt)
Roller K
Roller C
Hopping roller gear
Planetary gear D
H
E
F
I
Sub roller
Gear D
Sub roller gear
Planetary
gear G
2nd paper feeder
B
A
Idle gear
"Paper"
Hopping motor
Gear N (for timing belt)
Gear J'
Roller C'
Hopping roller gear
Planetary gear D'
Roller K'
L
H'
I'
E' F'
Sub roller
Planetary
gear M'
Sub roller gear
Planetary
gear G'
3rd paper feeder
B'
A'
Idle gear
Hopping motor
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2.2
Hopper Mechanism
The hopper is a motion where papers are automatically sent into the printer one by one. When
papers are set to the cassette, the feeding motion is activated by the hopping motor to send only
a top paper which is caught on the brake shoe.
Printer
Roller feeder
Hopping Roller
Sub Roller
< Second Paper Feeder >
Hopping Roller
Sub Roller
< Third Paper Feeder >
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3.
PARTS REPLACEMENT
In this section, the removing and installing procedure of assembly and unit in field are described.
Although this section describes the removing procedure, the installing procedure is basically to
conduct the removing one in reverse.
3.1
Precautions Concerning Parts Replacement
(1) Parts replacements must be carried out, by first turning the printer power switch off “O” and
removing the High Capacity Second / Third Paper Feeder from the printer.
(2) Do not disassemble the Second/Third Paper Feeder if it is operating normally.
(3) Establish the extent of disassembly suitable for the purpose of the procedure, and do not
disassemble any more than necessary.
(4) Only specified service tools may be used.
(5) Disassembly must be carried out according to the prescribed procedures. Parts may be
damaged if such procedures are not followed.
(6) Small parts such as screws and collars can easily be lost, therefore these parts should be
temporarily fixed in the original location.
(7) When handling printed circuit boards, do not use any glove which may generate static
electricity.
(8) Do not place the printed circuit boards directly on the equipment or floor.
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[Service Tools]
Table 3-1 shows the tools required for the replacement of printed circuit boards and units in the
field.
Table 3-1 Service Tools
No.
1
Service Tools
No. 1-100 Philips screwdriver
Q'ty
1
Place of use
Remarks
2~2.5 mm screws
2
No. 2-100 Philips screwdriver
1
3~5 mm screws
3
4
5
No. 3-100 screwdriver
No. 5-200 screwdriver
Digital multimeter
1
1
1
6
7
Pliers
1
1
Handy cleaner
8
Connector remover
OKI P/N:
1
4PP4076-5395P1
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3.2
Parts Layout
This section describes the layout of the main components.
Case assy cassette
Board BBB
Frame side(R) assy
Roller assy feed
Roller assy hopping
Cover front assy
Frame side(L) assy
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3.3
Parts Replacement Methods
This section describes the parts replacement methods for the components listed in the
disassembly order diagram below.
High Capacity
Second / ThirdPaper Feeder
Roller assy hopping, Roller assy feed (3.3.1)
Cover front assy (3.3.2)
Board-BBB (3.3.3)
Lever paper end, Lever paper near end (3.3.4)
Motor (3.3.5)
Connector (IMSA-9714N-14B), Connector (IMSA-9714N-14A)
(3.3.6)
Frange Pulley, Pulley Idle, Mini Pitch belt, Plate Earth shaft, Gear
double, Tray switch assy (3.3.7)
Roller feed (3.3.8)
Bracket sub roller (3.3.9)
Frame side(L) (3.3.10)
Frame side(R) (3.3.11)
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3.3.1 Roller assy hopping, Roller assy feed
(1) Remove the Case assy cassette 1.
(2) Disengage latchs to remove the Roller assy hopping 2.
(3) Disengage latchs to remove the Roller assy feed 3.
1
3
2
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3.3.2 Cover front assy
(1) Unscrew two screws 1 to remove the Cover front assy 2.
1
1
2
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3.3.3 Board-BBB
(1) Unscrew a screw 1 to remove the PCB cover bracket 2.
(2) Take away all connectors 3 and three screws 4 to remove the Board-BBB 5.
1
2
4
3
3
4
5
3
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3.3.4 Lever paper end, Lever paper near end
(1) Unscrew five screws 1 to remove roller cover bracket 2 and PLATE-Earth (L) 3.
(2) Disengage latches to remove the Lever paper end 4 and Lever paper near end 5.
1
1
2
4
5
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3.3.5 Motor
(1) Remove the Cover front assy (See section 3.3.2).
(2) Remove the PCB cover bracket (See section 3.3.3).
(3) Remove the roller cover bracket (See section 3.3.4).
(4) Unscrew seven screws 1 to remove the bottom bracket 2.
(5) Unscrew five screws 3 to remove the Frame side (L) assy 4 and Frame side (R) 5.
(6) Take away two screws 6 and connector to remove the Motor 7.
3
7
6
3
3
3
4
5
2
1
1
1
1
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3.3.6 Connector (IMSA-9714N-14B), Connector (IMSA-9714N-14A)
(1) Remove the Motor (See section 3.3.5).
(2) Unscrew two screws 1 to remove Connector (IMSA-9714N-14B) 2 and Plate-Earth (FR)
4.
(3) Unscrew two screws 4 to remove the connector (IMSA-9714N-14A) 5.
1
2
3
5
4
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3.3.7 Frange pulley, pulley Idle, Mini pitch belt, Plate Earth shaft, Gear double, Tray switch assy
(1) Remove the Motor (See section 3.3.5).
(2) Remove the Connector (See section 3.3.6).
(3) Unscrew two screws 1 to remove the motor bracket 2.
(At this time, the Mini pitch belt 3 and Gear double 4 can be removed simultaneously.)
(4) Disengage latchs to remove the Frange pulley 5 and pulley Idle 6.
(5) Unscrew a screw 7 to remove the Plate Earth shaft 8.
(6) Unscrew a screw 9 to remove the Tray switch assy 0.
2
1
0
1
3
9
8
7
4
5
6
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3.3.8 Roller feed
(1) Remove the Motor (See section 3.3.5).
(2) Remove the Connector (See section 3.3.6).
(3) Remove the motor bracket (See section 3.3.7).
(4) Disengage latchs to remove the Feeding bearing 1.
(5) Disengage latchs to remove the Pulley feed 2.
(At this time, the Gear feed 3 and Bush 4 can be removed simultaneously.)
(6) Remove the Roller feed 5.
2
3
4
1
5
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3.3.9 Bracket sub roller
(1) Remove the Roller assy hopping and Roller assy feed. (See section 3.3.1).
(2) Remove the Roller feed (See section 3.3.8).
(3) Unscrew a screw 1 to remove the Bracket joint 2 , Spring joint 3 and Gear joint 4.
(4) Take away the E-ring 5 to remove the Gear hopping 6.
(5) Disengage latchs to remove the Gear hopping (2nd) 7.
(At this time, the Bracket planet assy 8 can be removed simultaneously.)
(6) Take away two E-ring 9 and pull out the Knock pin 0 to remove the Gear Z38 A.
(7) Remove two ADF bearing B , Spring release C , Bearing F D and Space hopping shaft E
and remove the Shaft hopping F , Guide roller G , Lever release assy H and Bracket sub
roller I.
(8) Take away the Gear planet (z28) J to remove the Planet plate K.
(9) Take away the Bracket spring (sub) L to remove the Spring sub M.
7
4
8
2
B
3
5
6
1
C
H
B
L
D
M
I
9
E
G
0
F
K
J
A
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3.3.10 Frame side (L) assy
(1) Remove the Frame side (L) assy (See section 3.3.5).
(2) Remove the Plate Earth (BL) 1.
(3) Take away the Spring 2 to remove the Cassette stopper 3.
(4) Take away the Spring sheet 4 to remove the Pull block 5.
(At this time, Lever link 6 can be removed simultaneously.)
(5) Unscrew a screw 7 to remove the Link support 8.
(6) Remove the Roller link 9.
(7) Remove the Plate-Earth A.
(8) Remove the Plate-Earth B.
(9) Remove two Rubber foot 0.
1
3
2
5
4
0
0
7
9
6
8
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3.3.11 Frame side (R) assy
(1) Remove the Frame side (R) assy (See section 3.3.5).
(2) Remove the Plate Earth (BR) 1.
(3) Take away the Spring 2 to remove the Cassette stopper 3.
(4) Take away the Spring sheet 4 to remove the Pull block 5.
(At this time, Lever link 6 can be removed simultaneously.)
(5) Unscrew a screw 7 to remove the Link support 8.
(6) Remove the Roller link 9.
(7) Remove the Plate earth 0.
(8) Unscrew a screw A to remove the Detector spring B.
(9) Unscrew a screw C to remove the Board-PXC D.
(10) Remove two Rubber foot E.
2
1
3
0
5
4
D
C
E
B
A
7
E
6
8
9
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4.
TROUBLESHOOTING
4.1
Precautions Prior to the Troubleshooting
(1) Go through the basic checking items provided in the Operator Guide.
(2) Obtain detailed information concerning the problem from the user.
(3) Go through the checking in the conditions similar to that in which the problem occurred.
4.2
Preparations for the Troubleshooting
(1) Display on the Operator panel
The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator
panel. Go through the appropriate troubleshooting procedures according to the messages
displayed on the LCD.
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4.3
Troubleshooting Method
When a problem occurs, go through the troubleshooting according to the following procedure.
Problem occurs
Problem displayed by
the LCD message
Troubleshooting
according to the LCD
Status Message List
(see 4.3.1)
Carry out detailed
troubleshooting
according to the
Troubleshooting Flow
(see 4.3.2)
4.3.1 LCD Status Message List
ThelistingofthestatusesandproblemsdisplayedintheformofmessagesontheLCDisprovided
in Table 4-1.
Table 4-1
Classification
Jam error
LCD Status Message
Description
Recovery method
Notifies of occurrence of • Check the paper in the Second / third
jam while the paper is being
fed from the Second / third
Paper Feeder
Paper Feeder. Carry out the recovery
printing by opening the cover, removing
jammed paper and closing the cover,
and then turning the error display off.
• When the problem occurs frequently, to
through the Troubleshooting.
PAPER INPUT JAM
CHECK TRAY *
PAPER FEED JAM
CHECK TRAY *
• Check the paper in the Second / third
Paper Feeder. Also check to see if there
was a feeding of multiple sheets. Carry
out the recovery printing by opening the
cover, removing paper and closing the
cover, and then turning the error display
off.
Notifies of incorrect size pa-
per feeding from the Second /
third Paper Feeder.
Paper size error
ERROR PAPER SIZE
CHECK TRAY *
• Load the paper or paper cassette in the
Second / third Paper Feeder.
Notifies of no paper or paper
cassette state of the Second /
third Paper Feeder.
Tray paper out
PAPER OUT
mmmmmmmmTRAY*
mmmmmmmm
:
Paper size in the tray
being selected
• Verify connection of Board-BBB and
square-shaped connector. Replace the
square-shaped connector if necessary.
• Replace Board-BBB.
Notifies of occurrence of in-
terface timeout between the
printer and the Second / third
Paper Feeder.
Interface Timeout
ERROR
81
* : 2 or 3
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4.3.2 Troubleshooting Flow
• ( JAM error )
Paper Input Jam
• Does paper jam at the inlet when the power is turned on?
• YES Is the paper located above the inlet sensor lever?
• YES Remove the paper.
▼
• NO Is the inlet sensor lever operating normally?
• NO Replace the inlet sensor lever.
▼
• YES Clean the inlet sensor 1 on the power supply unit (High Voltage) or
replace the power supply unit (High Voltage).
(See Figure 2.3 Sensor Layout Diagram)
▼
• NO
When the paper is fed in, does the paper input jam occur?
• YES Is the paper being fed to above the inlet sensor lever?
• YES Is the inlet sensor lever operating normally?
• NO Replace the inlet sensor lever.
▼
• YES Clean the inlet sensor 1 on the power supply unit (High
Voltage) or replace the power supply unit (High Voltage).
(See Figure 2.3 Sensor Layout Diagram)
▼
• NO Replace the hopping roller shaft assy or paper cassette.
▼
• NO
Is the hopping roller shaft rotating?
• YES Set the paper properly.
Is the stepping motor turning?
▼
• NO
• YES Replace the one-way clutch gear on the hopping roller shaft
assembly.
▼
• NO
Is the connector cable being connected properly?
• NO Connect the connector cable properly.
▼
• YES Check the coil resistance (approx. 6.7Ω) of the stepping motor.
Is it normal?
• NO Replace the stepping motor.
▼
• YES Replace the Board-BBB.
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5.
CONNECTION DIAGRAM
5.1
Interconnection Diagram
to PRINTER UNIT
/ 2nd TRAY
2nd tray/ 3rd
tray auto
setting switch
BOARD-PXC
CN11 6P
SW
7P
TRAY 6P
SIZE 6P
MAIN2 7P
MOTOR 4P
BOARD-BBB
MAIN1 7P
7P
to 3rd TRAY
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5.2
PCB Layout
BBB-PCB
C P U
I C 1
L O W
E N D
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6.
PARTS LIST
58
59
63
12
57
8
7
13(Included 2-9)
18
3
6
17
25
61
66
16
15
24
9
65
5
9
14
20
11
52
62
45
51
21
49
53
26
34
36
23
22
48
32
33
46
44
43
30
40
41
47
37
31
54
28
50
29
36
45
64
60
30
7
35
1
39
56
38
8
2(Included 2-9)
27
42
3
6
55
19
9
10
9
5
11
4
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Table 6-1 High Capacity Second/ Third Paper Feeder (1/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
1
1
2
1
2
0
2
0
4
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
0
0
1
1
1
2
1
1
1
1
1
100
3
3
6
3
6
6
6
6
12
3
3
3
3
3
3
3
3
3
3
3
3
3
3
6
3
3
3
3
3
6
3
3
3
3
3
1000
1
2
3
4
5
6
7
8
9
40346701
40488701
Frame side(L)assy
Guide cassette L
1
1
2
1
2
2
2
2
4
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
6
#
6
# For Maintenance
4PP4122-1217P001 Pull block
12
6
40349102
Lever link(Caulking)
#
#
4PP4076-5358P001 Link support
12
12
12
12
24
6
40928101
Spring-Sheet
4PP4076-5359P001 Cassette stopper
4PP4043-4526P001 Spring
4PB4016-1960P002 Rubber foot
10 3PP4076-5714P001 Guide rail plate L
11 40349701
12 40346801
13 40488801
14 40349101
Roller link
12
6
#
Frame side(R)assy
Guide cassette R
Lever link(Caulking)
#
6
# For Maintenance
#
6
15 3PP4076-5715P001 Guide rail plate R
16 4PP4076-5360P001 Detector spring
6
6
17 40368303
18 40433001
19 40347001
20 40366501
21 40247001
22 40348301
23 40422101
24 40444301
25 2201000P0141
26 2201000P0140
27 40247301
Board-PXC-3
6
#
Plate earth(R)
6
#
Cover front assy
Motor
6
#
6
#
Gear double
6
#
Pulley Idle
6
#
Flang pulley
6
#
Tray switch assy
Connector (IMSA-9714N-14B)
Connector (IMSA-9714N-14A)
Roller feed
12
6
#
# To Printer or 2nd Tray
# To 3rd Tray
#
6
6
28 4PP4043-4489P001 Feeding bearing
29 4PP4076-3949P001 Bush
6
6
30 40247101
31 40247201
32 40247801
33 40433401
34 40247701
35 40247501
Gear feed
12
6
#
#
#
#
#
#
Pulley feed
Bracket joint
Spring joint
Gear joint
6
6
6
Shaft hopping
6
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Table 6-1 High Capacity Second/ Third Paper Feeder (2/2)
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
2
1
1
0
0
0
1
0
0
0
0
0
1
1
1
1
1
0
1
2
2
1
1
0
1
1
1
1
1
1
0
1
1
100
6
3
3
3
3
3
3
3
3
6
3
3
3
3
3
3
3
3
3
6
6
3
3
3
3
3
3
3
3
3
3
3
3
1000
12
6
36 4PP3522-3568P001 ADF bearing
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
37 40433701
38 40317701
39 40358101
40 40367101
41 40928201
42 40317601
43 40385901
44 40363301
45 40442501
Bracket sub roller(Cauking)
#
#
#
#
#
#
#
#
#
Gear planet(z28)
Plate planet
6
6
Bracket spring(sub)
Spring sub roller
Gear z38
6
6
6
Lever release assy
Spring release
Guide roller
6
6
12
6
46 4PP4076-5308P001 Bearing F
Spacer hopping shaft
47 40363401
48 40348401
49 40348501
50 40317901
51 40318001
52 40387101
53 40375101
54 4LP-1313-121
55 40371301
56 40313201
57 40378401
58 40927901
59 40496001
60 NK3-16SUS
61 40387401
62 40387601
63 40387501
64 40387301
65 40432901
66 40583601
67 40912601
68 40912401
6
#
#
#
#
#
#
Gear hopping(2nd)
Bracket planet assy
Lever paper end
Lever paper near end
Board-BBB
6
6
6
6
6
Connection code-wire
Mini pitch belt
6
# To 3rd Tray
6
Roller assy hopping
Roller assy feed
Case assy cassette
Separator frame assy
PLATE-Damper
Knock Pin
12
12
6
#
#
#
#
#
6
6
6
Plate-Earth(FR)
Plate-Earth(Shaft)
Plate-Earth(BR)
Plate-Earth(BL)
Plate-Earth(R)
6
#
#
#
#
#
6
6
6
6
Core Assy-2nd Tray
Plate-Earth (BL)
Plate-Earth (L)
6
#
To Printer or 2nd Tray
6
6
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Appendix D
MULTI FEEDER MAINTENANCE
1.
OUTLINE
Functions
1.1
ThisMultiFeederisinstalledonthefrontsectionoftheprinter, anditsuppliespaperautomatically
through the operation of hopping motor, which is driven by signals sent from the printer.
The main functions are the followings:
•
Paper that can be used:
Paper type
Plain paper
Paper size
Quantity of paper
64 ~ 90 g/m2
A6 (106 x 148 mm) ~ A4
Thick paper, OHP film
Post card, label sheet
Envelope
64 ~ 90 g/m2
Post card ~ A4-size equivalent
64 ~ 128 g/m2
64 ~ 90 g/m2
C5, DL, COM-10, COM-9, Monarch
* approximately 50 sheets of envelopes can be set at a time.
1.2
External View and Component Names
Link
Hopper cover
Paper stay
Roller (A)
Paper guide (R)
Upper cover
Paper supporter
Roller (B)
Paper guide (L)
Square-shaped
connector
Cover frame
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2.
MECHANISM DESCRIPTION
2.1
General Mechanism
The sheet (or envelope) at the very bottom of the stack is fed into the printer, one at a time, when
the Multi Feeder receives the signal from the printer.
(1) First, the hopping motor rotates in the direction of arrow D. The planet gear F moves to the
direction of arrow G, and drives rollers A and B. The roller C is linked to pulley I which is on
the same shaft as roller A, and it also turns at the same time as roller A. The paper is fed
for a predesignated distance until the leading edge reaches roller C.
(2) Next, the hopping motor rotates in the direction of arrow E. The planet gear F moves to the
direction of arrow H, and drives idle gear J. The rotation of idle gear J is transmitted to the
gears linked to it, and drives pulley I on the same shaft as roller A, turning roller C to feed the
paper into the printer, until it reaches the registration roller of the printer. During this process,
a one-way bearing is engaged at pulley I so that the rotation of pulley I is not transmitted to
roller A, preventing any feeding of papers by roller A.
Planet gear F
Hopping motor
Idle gear J
Paper
Roller B
Roller A
Pulley I
Belt
Roller C
2.2
Hopper Mechanism
The hopper automatically feeds the printer with the paper being set, single sheet at a time.
Multi Feeder
Printer
Roller (B)
Roller (A)
Roller (C)
Registration roller
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3.
PARTS REPLACEMENT
This section covers the procedures for the disassembly, reassembly and installations in the field.
This section describes the disassembly procedures, and for reassembly procedures, basically
proceed with the disassembly procedures in the reverse order.
3.1
Precautions Concerning Parts Replacement
(1) Parts replacements must be carried out, by first turning the printer power switch off “O” and
removing the Multi Feeder from the printer.
(2) Do not disassemble the Multi Feeder if it is operating normally.
(3) Establish the extent of disassembly suitable for the purpose of the procedure, and do not
disassemble any more than necessary.
(4) Only specified service tools may be used.
(5) Disassembly must be carried out according to the prescribed procedures. Parts may be
damaged if such procedures are not followed.
(6) Small parts such as screws and collars can easily be lost, therefore these parts should be
temporarily fixed in the original location.
(7) When handling printed circuit boards, do not use any glove which may generate static
electricity.
(8) Do not place the printed circuit boards directly on the equipment or floor.
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[Service Tools]
Table 3-1 shows the tools required for the replacement of printed circuit boards and units in the
field.
Table 3-1 Service Tools
No.
1
Service Tools
No. 1-100 Philips screwdriver
Q'ty
1
Place of use
Remarks
2~2.5 mm screws
2
No. 2-100 Philips screwdriver
1
3~5 mm screws
3
4
5
No. 3-100 screwdriver
No. 5-200 screwdriver
Digital multimeter
1
1
1
6
7
Pliers
1
1
Handy cleaner
8
Connector remover
OKI P/N:
1
4PP4076-5395P1
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3.2
Parts Layout
This section describes the layout of the main components.
Hopping cover
Hopping motor
Upper cover
Control board
(AOLE-PCB)
Planet gear
Roller (A)
Separator
Sensor lever
Roller (B)
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3.3
Parts Replacement Methods
This section describes the parts replacement methods for the components listed in the
disassembly order diagram below.
Multi Feeder
Separator (3.3.1)
AOLE-PCB (3.3.2)
Square-shaped connector (3.3.3)
Hopping motor (3.3.4)
Planet gear (3.3.5)
Roller B (3.3.6)
Roller A (3.3.7)
Mini pitch belt & Feed roller (3.3.8)
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3.3.1 Separator
(1) Turn the printer power off and remove the Multi Feeder.
(2) Disengage the link and hopper cover.
(3) Remove two screws 1, disengage two locks of the upper cover 2using a flat-head
screwdriver, and remove the upper cover 2.
(4) Remove two pan-head screws 3and remove the cover frame 4.
(5) Disengage the plate and the frame. (Refer to 3.3.6.)
(6) Remove two screws 5and remove the separator assy 6.
(7) Lift the paper stay 7and disengage it from the separator bracket 8, then remove the
separator 9. The spring 0comes off at the same time, so be careful not to lose it.
1
2
2
6
8
Lock
4
Lock
3
A
5
7
B
9
0
Plate
3
Less than
±
0.1mm
C
Plessure roller
Plessure spring
(Roller)
[Check at the time of assembly)
When the secondary stage of idle gear Ais turned in the A direction after engaging the plate
and the frame, the inclination of the pressure roller Bis less than ±0.1 mm against the plate
C, as shown in the right figure. When the inclination of the pressure roller exceeds±0.1 mm,
fine-adjust it by pressing with fingers, as shown in the left figure, with the pressure spring
(roller) installed.
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3.3.2 AOLE-PCB
(1) Remove the upper cover (see 3.1.1 (1) to (3)).
(2) Remove two screws 1and remove the AOLE-PCB 2.
(3) Remove the connector 3.
(4) Remove the connector 4.
2
1
3
4
Caution:
Be careful to set the sensor plate properly when mounting AOLE-PCB.
2
Sensor plate
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3.3.3 Square-shaped connector
(1) Remove the upper cover and remove the cover frame 5(see 3.3.1 (1) to (4)).
(2) Remove the AOLE-PCB (see 3.3.2).
(3) Remove the screw 1and remove the square-shaped connector 2.
(4) Using the connector remover, remove the nylon cord 3from the square-shaped connector
2.
1
5
4
2
3
[Confirmation after assembly]
1. The square connector 2should be horizontal to the cover frame 5.
2
5
2. The square connector 2should be hooked on the connector spring 4and move smoothly.
4
2
5
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3.3.4 Hopping Motor
(1) Remove the upper cover (see 3.3.1 (1) to (3)).
(2) Remove the AOLE-PCB. (see 3.3.2)
(3) Remove two screws 1, then remove the hopping motor 2.
1
2
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3.3.5 Planet gear
(1) Remove the upper cover (see 3.3.1 (1) to (3)).
(2) Remove the AOLE-PCB (see 3.3.2).
(3) Remove two screws 1, then remove the motor bracket assy 2and the planet gear 3.
2
3
1
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3.3.6 Roller B
(1) Remove the upper cover (see 3.3.1 (1) to (3)).
(2) Disengage the plate and frame (on both sides).
(3) Remove the separator assy (see 3.3.1 (4) to (5)).
(4) Remove the AOLE-PCB (see 3.3.2).
(5) Remove the motor bracket assy (see 3.3.5).
(6) Remove the gear 1.
(7) Shift the roller B 2to the right, lift it by holding on its left side, and pull it out to the left side.
The bearing 3also comes off at the same time, so be careful not to lose it. Further, pay
specialattentiontomakesurethatyoudonotdamagethesensorlever4whilegoingthrough
this procedure.
2
3
1
4
Frame
Plate
Engaging section
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3.3.7 Roller A
(1) Remove the motor bracket assy (see 3.3.5).
(2) Remove two gears 1and then another gear 2.
(3) Disengage the plate 3and the frame 4.
(4) Remove four screws 5and remove the frame 4(see 3.3.6).
(5) Move the belt to the right and remove it from the one-way pulley 6.
(6) Move the carrier roller assembly to the right, and remove it from the shaft 7.
(7) Move the roller A 8to the right, lift its left side, and then pull it off to the left. (Be careful not
to lose the shaft 7being removed together.)
5
1
2
5
4
1
5
8
7
6
3
Belt
7
Carrier roller assy
6
8
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3.3.8 Mini pitch belt & Feed roller
(1) Remove the roller A (see 3.3.7).
(2) Remove the bearing 1and remove the feed roller assy 2.
(3) Remove two bearings 3and remove the plate 4.
(4) Remove the mini pitch belt 5and the feed roller 6.
1
4
5
6
3
3
2
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4.
TROUBLESHOOTING
4.1
Precautions Prior to the Troubleshooting
(1) Go through the basic checking items provided in the Operator Guide.
(2) Obtain detailed information concerning the problem from the user.
(3) Go through the checking in the conditions similar to that in which the problem occurred.
4.2
4.3
Preparations for the Troubleshooting
(1) Display on the operator panel
The status of the problem is displayed on the LCD (Liquid Crystal Display) on the operator
panel. Go through the appropriate troubleshooting procedures according to the messages
displayed on the LCD.
Troubleshooting Method
When a problem occurs, go through the troubleshooting according to the following procedure.
Problem occurs
Problem displayed by
the LCD message
Troubleshooting
according to the LCD
Status Message List
(see 4.3.1)
Carry out detailed
troubleshooting
according to the
Troubleshooting Flow
(see 4.3.2)
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4.3.1 LCD Status Message List
ThelistingofthestatusesandproblemsdisplayedintheformofmessagesontheLCDisprovided
in Table 4-1.
Table 4-1
Classification
Jam error
LCD Status Message
Description
Recovery method
Notifies of occurrence of • Check the paper in the Multi Feeder.
jam while the paper is being
fed from the Multi Feeder.
Carry out the recovery printing by
opening the cover, removing jammed
paper and closing the cover, and then
turning the error display off.
• When the problem occurs frequently,
to through the Troubleshooting.
PAPER INPUT JAM
CHECK FEEDER
PAPER FEED JAM
CHECK FEEDER
• Check the paper in the Multi Feeder.
Also check to see if there was a feed-
ing of multiple sheets.
Carry out the recovery printing by
opening the cover, removing paper
and closing the cover, and then turn-
ing the error display off.
Paper size error
Notifies of incorrect size pa-
per feeding from the Multi
Feeder.
ERROR PAPER SIZE
CHECKFEEDER
• Load the paper in the Multi Feeder.
Notifies of no paper state of
the Multi Feeder.
Tray paper out
PAPER OUT
mmmmmmmm FEEDER
mmmmmmmm
:
Paper size in the tray
being selected
• Verify connection of AOLE-PCB and
square-shaped connector.
Replace the square-shaped connec-
tor if necessary.
Notifies of occurrence of
interface timeout between
the printer and the Multi
Feeder.
Interface Timeout
ERROR
81
• Replace AOLE-PCB.
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4.3.2 Troubleshooting Flow
• ( JAM error )
Paper Input Jam
• Does paper jam at the inlet when the power is turned on?
• YES Is the paper located above the inlet sensor lever?
• YES Remove the paper.
Is the inlet sensor lever operating normally?
• NO Replace the inlet sensor lever.
▼
• NO
▼
• YES Clean the inlet sensor 1 on the power supply unit (High Voltage) or
replace the power supply unit (High Voltage).
(See Figure 2.3 Sensor Layout Diagram)
▼
• NO When the paper is fed in, does the paper input jam occur?
• YES Is the paper being fed to above the inlet sensor lever?
• YES
Is the inlet sensor lever operating normally?
• NO Replace the inlet sensor lever.
▼
• YES Clean the inlet sensor 1 on the power supply unit (High
Voltage) or replace the power supply unit (High Voltage).
(See Figure 2.3 Sensor Layout Diagram)
▼
• NO
Replace the feed roller, roller-A or roller-B.
▼
• NO Are the feed roller, roller-A and roller-B rotating?
• YES Set the paper properly.
▼
• NO Is the belt torn?
• YES Replace belt.
• NO Is the pulse motor turning?
• YES Replace planet gear.
• NO Is the connector cable being connected properly?
• NO Connect the connector cable properly.
▼
▼
▼
• YES Check the coil resistance (approx. 32Ω) of the stepping motor.
Is it normal?
• NO
Replace the stepping motor.
▼
• YES Replace the AOLE-PCB.
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5.
CONNECTION DIAGRAM
5.1
Interconnection Diagram
Pulse motor
2 M-T3
1 M-T4
4 M-T1
3 M-T2
M
CN3
AOLE - PCB
CN1
To the Printer
5.2
PCB Layout
AOLE-PCB
CN1
SEN2
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6.
PARTS LIST
4
3
9
12
6
2
8
1
11
10
7
5
12
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Table 6-1 Multi Feeder
Reccomended Q'ty
No.
Parts No.
Name
Q'ty/U
Remarks
50
1
1
1
1
1
1
1
1
1
0
0
3
100
1000
1
2
3
4
5
6
7
8
9
4PP4083-5544G001 Separator
3PB4083-5514P001 Roller-A
4PP4083-5520P001 Planet gear
1
1
1
1
1
1
1
1
1
1
1
3
3
6
3
6
3
6
4PB4083-6075P001 Hopping motor
3PB4083-5524P001 Roller-C
3
6
3
6
4PB4043-4614P001 One-way pulley
3
6
4LP-1313-338
Mini pitch belt
3
6
4PB4043-4743P001 Roller-B
3
6
4YA4046-1647G011 AOLE-PCB
3
6
10 2201000P0141
Connector(IMSA-9714N-14B)
3
6
#
11 4YS4011-4448P004 Nylon connector cord
12 4PP4083-2394P001 Stirrer roller gear
3
6
9
18
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