TECHNICAL TRAINING
PROGRAM
- PRE-STUDY MANUAL -
e-STUDIO900/1050
Toshiba America Business Solutions
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WARNING
The
Pre-Training
Manual
contains
information
regarding service techniques, procedures, processes
and spare parts of office equipment distributed by
Toshiba Corporation. Users of this manual should be
either service trained or certified by successfully
completing a Toshiba Technical Training Program.
Untrained and uncertified users utilizing information
contained in this pre-training manual to repair or modify
Toshiba equipment risk personal injury, damage to
property or loss of warranty protection.
Toshiba Corporation
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LEGEND
PRODUCT CODE
COMPANY
Toshiba
900
B070
B071
1050
LCT B511
MP-4501L(RT46 Large Capacity Tray)
Finisher B478
Cover Int. B470
Bypass Tray B512
MJ-1026(SR840 3,000-SHEET FINISHER)
MJ-7002(Cover Interposer Tray Type 1075)
MY-1024(Multi Bypass Tray Type 2105)
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INTRODUCTION
The Pre-Training Manual for the 900/1050 has been designed to give the Service
Technician an overview of these products prior to attending the training program. This
manual starts with the basic fundamentals utilized in the machine and reviews the entire
copy process and accessories.
It is the aim of the Service Education and Development Division to give the Service
Technician as much hands-on experience as possible while attending training. In order to
accomplish this, a relatively small amount of time will be spent on the basic fundamentals
in class. For these reasons a thorough understanding of this document is necessary.
At the end of this Pre-Training Manual it is necessary to complete a Pre-Training Test
found on the Toshiba FYI Website.
This test is provided to ensure that the Service Technician has an understanding
of the electronics, the copy process and the machine operations. When this pre training
been completed and passed the technician is approved for the 5-day classroom course.
Should you have any questions, please contact the Service Training
Division.
.
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FLOWCHART FOR PRE-TRAINING MANUAL
Technician is scheduled for school.
Service Manager gives Technician
Pre-Training Manual. (download)
The Service Manager enrolls technican
for the class and pre-requisite exam.
This is done on-line at the FYI website.
The technician reviews the pre training
material.
Technician completes pre-training.
Once completing the training, the
student completes the on-line exam.
After the exam is passed the student
receives immediate results.
Service manager receives results.
Student reviews the material and
does further preparation.
Student attends instructor led 5-day
training program.
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CONTENTS
SECTION 1
OVERALL INFORMATION
SECTION 2
DETAILED DESCRIPTIONS
SECTION 3
SERVICE TABLES
SECTION 4
INSTALLATION
SECTION 5
LARGE CAPACITY TRAY
SECTION 6
SR860 BOOKLET FINISHER
with PUNCH UNIT
SECTION 7
SR840 3,000-SHEET FINISHER
with PUNCH UNIT
SECTION 8
COVER INTERPOSER TRAY TYPE 1075
SECTION 9
MULTI BYPASS TRAY TYPE 2105
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ꢀIMPORTANT SAFETY NOTICES
PREVENTION OF PHYSICAL INJURY
1. Before disassembling or assembling parts of the copier and peripherals,
make sure that the copier power cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. Note that some components of the copier and the paper tray unit are
supplied with electrical voltage even if the main power switch is turned off.
4. If any adjustment or operation check has to be made with exterior covers off
or open while the main switch is turned on, keep hands away from electrified
or mechanically driven components.
5. If the Start key is pressed before the copier completes the warm-up period
(the Start key starts blinking red and green alternatively), keep hands away
from the mechanical and the electrical components as the copier starts
making copies as soon as the warm-up period is completed.
6. The inside and the metal parts of the fusing unit become extremely hot while
the copier is operating. Be careful to avoid touching those components with
your bare hands.
HEALTH SAFETY CONDITIONS
1. Never operate the copier without the ozone filters installed.
2. Always replace the ozone filters with the specified ones at the specified
intervals.
3. Toner and developer are non-toxic, but if you get either of them in your eyes
by accident, it may cause temporary eye discomfort. Try to remove with eye
drops or flush with cold water as first aid. If unsuccessful, get medical
attention.
OBSERVANCE OF ELECTRICAL SAFETY STANDARDS
1. The copier and its peripherals must be installed and maintained by a
customer service representative who has completed the training course on
those models.
2. The NVRAM on the controller board has a lithium battery which can explode
if replaced incorrectly. Replace the NVRAM only with an identical type.
However, the manufacturer recommends replacing the entire NVRAM, not
just the battery. Never recharge or incinerate a used NVRAM battery.
Dispose of a used NVRAM or NVRAM battery in accordance with local
regulations.
3. The danger of explosion exists if the battery on the controller board is
incorrectly replaced. Replace the battery only with the equivalent type
recommended by the manufacturer. Discard the used controller board
battery in accordance with the manufacturer’s instructions and local
regulations.
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SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL
1. Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly
when exposed to an open flame.
2. Dispose of used toner, developer, and organic photoconductors in
accordance with local regulations. (These are non-toxic supplies.)
3. Dispose of replaced parts in accordance with local regulations.
4. When keeping used lithium batteries in order to dispose of them later, do not
put more than 100 batteries per sealed box. Storing larger numbers or not
sealing them apart may lead to chemical reactions and heat build-up.
LASER SAFETY
The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-
based optical units in the field. The optical housing unit can only be repaired in a factory or
at a location with the requisite equipment. The laser subsystem is replaceable in the field
by a qualified Customer Engineer. The laser chassis is not repairable in the field.
Customer engineers are therefore directed to return all chassis and laser subsystems to
the factory or service depot when replacement of the optical subsystem is required.
ꢀWARNING
Use of controls, or adjustment, or performance of procedures other than
those specified in this manual may result in hazardous radiation exposure.
ꢀWARNING
WARNING: Turn off the main switch before attempting any of the
procedures in the Laser Unit section. Laser beams can
seriously damage your eyes.
CAUTION MARKING:
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CONVENTIONS IN THIS MANUAL
This manual uses several symbols.
Symbol What it means
ꢀ
ꢀ
ꢁ
Refer to section number
See Core Tech Manual for details
Screw
Connector
ꢂ
E-ring
ꢃ
Clip ring
ꢄ
NA
North America
Europe/Asia
EUR/A
LEF (Long Edge Feed)
SEF (Short Edge Feed)
LEFSEF.WMF
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SECTION 1
OVERALL INFORMATION
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1. OVERALL MACHINE INFORMATION
1.1 SPECIFICATIONS
1.1.1 COPIER ENGINE
Configuration:
Copy Process:
Originals:
Console
Dry electrostatic transfer system
Sheet/Book/Object
Max.: A3/11" x 17"
Original Size:
Min.: A5, 51/2" x 81/2" (with ADF)
Original Alignment:
Paper Weight:
Rear left corner (for platen mode, ADF mode)
Tray 1~3:
52 to 163 g/m2
Bond: 16 to 40 lb.
Cover: 50 to 60 lb.
Index: 90 lb.
Tray 6 (LCT):
Tray 4~5 (LCT):
Tray 7 (Bypass):
52 to 216 g/m2
Bond: 16 to 40 lb.
Cover: 50 to 60 lb.
Index: 90 to 110 lb.
64 to 163 g/m2
Bond: 20 to 40 lb.
Cover: 50 to 60 lb.
Index: 90 lb.
Duplex Tray
(Possible
Weight):
Paper Size:
Tray 1 (Tandem): 81/2" x 11" LEF, A4 LEF
Tray 2, Tray 3:
51/2" x 81/2" to 11" x 17", 12" x 18"
A5 to A3
Duplex Tray
A5 to A3, 51/2" x 81/2" to 11" x 17",
(Possible Sizes): 12" x 18"
Reproduction Ratios: 7 reduction and 5 enlargement
Metric Version
400%
Inch Version
Enlargement
400%
200%
155%
129%
121%
100%
200%
141%
122%
115%
100%
Full Size
93%
82%
75%
71%
65%
50%
25%
93%
85%
78%
73%
65%
50%
25%
Reduction
PTM
1-1
B070/B071
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Zoom:
25 ~ 400% (allows manual adjustment in 1% steps
vertically, horizontally)
Copying with image stored in
memory with A4/LT LEF feeding
from the same tray.
900
90 ppm
Copy Speed:
1050
105 ppm
When using ADF 1-to-1 with
A4/LT LEF magnification feeding
from the same tray.
900/1050
75 ppm
Resolution
Gradation:
Scanning
Printing
256 levels
600 dpi
1200 dpi
Scanning (8 bits/pixel)
Printing (1 bit/pixel, 9
values):
Less than 360 s from Off mode at 23°C (73.4°F)
Copy Tray 1, A4/81/2" x 11" LEF
Warm-up Time:
First Copy Time
900 (90 cpm)
Less than 3.5 s
Less than 5.0 s
1050 (105 cpm)
Less than 3.2 s
Less than 4.2 s
Face-up
Face-down
Copy Number Input:
1 to 9999
Copier
Tray 1: (Tandem) 1000 x 2
3,000 Tray 2: 500
Tray 3: 500
Copy Paper Capacity
(Sheets):
Tray 4: 1,000 , Tray 5: 1,000, Tray 6:
2,550
LCT
4,550
Tray 7, 500 (Optional Bypass Tray B512)
Bypass
Total
500
8,050
Memory Capacity:
RAM; 256 MB (128 x 2) Standard
256 MB (Optional, Required for Scanner/Printer
Option)
HDD; 80 GB (40 GB x2), approximately 1,735 copies
Toner Replenishment: Cartridge exchange (1,450 g/cartridge)
Toner Yield:
55 K copies, (A4 LEF, 6% chart, B070 (90 cpm) 1 to 25
Repeat Copying), (B071 (105 cpm), 1 to 50 Repeat
Copying)
Power Source:
North America;
Europe/Asia;
Copier;
208 to 240 V, 60 Hz, 20 A
220 to 240 V, 50/60 Hz, 16 A
870 x 858.5 x 1476 mm
32.3" x 33.8" x 58.1"
Dimensions
(W x D x H)
Full System; 2218 x 8585 x 1476 mm
87.3" x 33.8" x 58.1"
Weight:
Less than 275 kg (605 lb.) including ADF, and no options
B070/B071
1-2
PTM
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Space Requirements:
Copier (w x d)
1202 x 858.5 mm (47.3" x 33.8")
Full System*1
(w x d)
Finisher + Bypass with bypass
tray extended for A3 SEF
2528 x 858.5 mm
99" x 33.7"
Max.
Min.
2804 x 858.5 mm
110.4" x 33.7"
Finisher + Bypass with bypass
tray extended for A4 LEF.
Full System: Mainframe + ADF + Finisher B478 + LCT B511 + Cover Interposer Tray B470
+ Bypass Tray B512
Power Consumption: North America Version (Unit: W)
Mainframe Only
Full System*
1050
2.30 K
900
1050
900
Warm-up
Stand-by
Copying
2.20 K
0.65 K
2.70 K
2.80 K
2.20 K
0.65 K
2.80 K
2.90 K
2.30 K
0.70 K
2.80 K
2.90 K
0.70 K
2.90 K
3.00 K
Maximum
*Full System: Mainframe + ADF + LCT + Bypass Tray + Cover Interposer + Finisher1
1 Finisher:
B478 + Punch Unit with B071 (105 cpm), B468 + Punch Unit with B070
(90 cpm)
Noise Emission
Sound Power
Sound Pressure
900 (90 cpm)
Level db (A)
Level dB (A)
Stand-by
Copying
Stand-by
Copying
60
74
59
78
45
60
46
68
Mainframe
Full System
Sound Power
Level dB (A)
Sound Pressure
1050 (105 cpm)
Level dB (A)
Stand-by
Copying
Stand-by
Copying
60
76
59
79
45
61
46
68
Mainframe
Full System
PTM
1-3
B070/B071
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1.1.2 ADF
"
Original Size:
Normal Original Mode: A3 to B5, 11" x 17" to 51/2 x
"
81/2
"
Thin Original Mode
A3 to B5, 11" x 17" to 51/2 x
"
81/2
"
Duplex Original Mode: A3 to B5, 11" x 17" to 51/2 x
"
81/2
Original Weight:
Normal Original Mode: 52~128 g/m2 (Note 1)
Thin Original Mode
40~128 g/m2 (Note 1)
Duplex Original Mode: 52~105 g/m2 (Note 2)
Table Capacity:
Original Feeding Speed:
100 sheets (80 g/m2, 20 lb)
"
75 cpm (A4/81/2 x 11" LEF, 1 to 1)
Original Standard Position: Rear left corner (Face-up)
Separation:
FRR
Original Transport:
Original Feed Order:
Power Source:
Power Consumption:
Dimensions (W x D x H):
Weight
One flat belt
From the top original
DC 24 V and DC 38 V from the copier
Less than 130 W
680 x 560 x 150 mm (26.8" x 22" x 5.9")
Less than 17.5 kg (38.5 lb.)
Note 1:156 g/m2 possible, but not guaranteed.
Note 2:128 g/m2 possible, but not guaranteed.
B070/B071
1-4
PTM
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1.2 MACHINE CONFIGURATION
10
7
2
1
6
3
5
4
B070I413.WMF
Machine
No.
Item
Comments
900 (90 cpm), 1050 (105 cpm).
Code
eStudio900/1050
MY1024
MP4501
KF9000
1
2
3
4
5
Mainframe
Bypass Tray
LCT
A3/DLT Tray Kit*1
3000 Sheet Finisher
3000 Sheet Booklet
Finisher
Replace Tray 1 (tandem tray) inside.
MJ1026
6
N/A
7
8
9
Punch Unit
Output Jogger Unit
Cover Interposer Tray MJ7002
Punch Unit MJ6006
Copier Connection Kit GE1130
N/A
KK9000
Attached to Finisher
Attached to Finisher.
Inside Finisher
10
Not shown.
*1: Replaces Tandem Tray in main unit.
PTM
1-5
B070/B071
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1.3 COMPONENT LAYOUT
1.3.1 COPIER ENGINE
1
2
3
4
5
6
7
8
32 33
9
31
30
29
28
27
26
25
10
11
12
13
14
15
16
17
24
23
22
21 20 19
18
B070D870.WMF
1. Laser Diode Board
2. fθ Lenses
18. Separation Roller
19. Feed Roller
20. 1st Tray (Tandem, 1,000 sheets each)
21. 3rd Tray (500 sheets)
22. 2nd Tray (500 sheets)
23. Used Toner Bottle
24. Toner Bank Unit
3. Sensor Board Unit
4. Exposure Lamp
5. Cleaning Brush
6. Lamp Regulator
7. Cleaning Blade
8. Charge Corona Unit
9. Color LCD
25. Duplex Tray
26. Inverter Unit Paper Exit Roller
27. Inverter Feed Roller
28. Pressure Roller
29. Paper Cooling Pipe
30. Hot Roller
31. Motor Control Unit
32. Oil Supply & Cleaning Web
33. Drum Unit
10. Drum
11. Development Unit
12. Registration Roller
13. LCT Relay Roller
14. Transfer Belt Unit
15. Relay Roller
16. Pick-up Roller
17. Vertical Transport Rollers
B070/B071
1-6
PTM
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1.3.2 ADF
Overview
1
2
4
3
5
6
7
8
9
B070D869.WMF
14
13
15
10
11
12
1. Entrance Sensor
2. Separation Roller
3. Feed Belt
9. Feed-out Roller
10. Exit Junction Gate
11. Inverter Roller
4. Pick-up Roller
5. Original Tray
12. Exit Sensor
13. Transport Belt
6. Inverter Junction Gate
7. Inverter Guide Roller
8. Inverter Sensor
14. Registration Sensor
15. Width Sensors (x3)
PTM
1-7
B070/B071
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1.4 PAPER PATH
2
1
12
11
10
3
9
8
7
6
4
5
B070D871.WMF
1. ADF
7. Duplex Unit
8. Optional Finisher
9. Inverter Unit
10. Shift Tray
2. Bypass Tray
3. Optional LCT
4. Tray 3
5. Tray 2
11. Upper Tray
6. Tray 1
12. Cover Interposer
B070/B071
1-8
PTM
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1.5 COPY PROCESS
1
B070D872.WMF
2
3
10
4
9
8
5
7
6
B070D873.WMF
1. EXPOSURE
A xenon lamp exposes the original. Light reflected from the original passes to
the CCD, where it is converted into an analog data signal. This data is
converted to a digital signal, processed, and stored in the memory. At the time
of printing, the data is retrieved and sent to the laser diode. For multi-copy runs,
the original is scanned once only and stored to the hard disk.
2. DRUM CHARGE
An OPC (organic photoconductor) drum is used in this machine. In the dark,
the charge corona unit gives a negative charge to the drum. The grid plate
ensures that corona charge is applied uniformly. The charge remains on the
surface of the drum because the OPC layer has a high electrical resistance in
the dark.
PTM
1-9
B070/B071
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3. LASER EXPOSURE
The processed data from the scanned original is retrieved from the hard disk
and transferred to the drum by four laser beams, which form an electrostatic
latent image on the drum surface. The amount of charge remaining as a latent
image on the drum depends on the laser beam intensity, which is controlled by
the laser diode board (LDB).
4. DRUM POTENTIAL SENSOR
The drum potential sensor detects the electric potential on the drum to correct
various process control elements.
5. DEVELOPMENT
The magnetic developer brush on the development rollers comes in contact
with the latent image on the drum surface. Toner particles are electrostatically
attracted to the areas of the drum surface where the laser reduced the negative
charge on the drum.
6. IMAGE TRANSFER
Paper is fed to the area between the drum surface and the transfer belt at the
proper time to align the copy paper and the developed image on the drum.
Then, the transfer bias roller and brush apply a high positive charge to the
reverse side of the paper through the transfer belt. This positive charge pulls
the toner particles from the drum to the paper. At the same time, the paper is
electrically attracted to the transfer belt.
7. PAPER SEPARATION
Paper separates from the drum as a result of the electrical attraction between
the paper and the transfer belt. The pick-off pawls also help separate the paper
from the drum.
8. ID SENSOR
The laser forms a sensor pattern on the drum surface. The ID sensor measures
the reflectivity of the pattern. The output signal is one of the factors used for
toner supply control.
9. CLEANING
The cleaning brush removes toner remaining on the drum after image transfer
and the cleaning blade scrapes off all remaining toner.
10. QUENCHING
The light from the quenching lamp electrically neutralizes the charge on the
drum surface.
B070/B071
1-10
PTM
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SECTION 2
DETAILED DESCRIPTIONS
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2. DETAILED SECTION DESCRIPTIONS
2.1 DOCUMENT FEEDER
2.1.1 PICK-UP ROLLER RELEASE
[F]
[E]
[B]
[C]
[A]
[D]
B070D916.WMF
When the original set sensor is off (no original on the original tray), the pick-up roller
stays in the up position.
When the original set sensor turns on (or when the trailing edge of a page passes the
entrance sensor while pages remain on the original tray), the pick-up motor [A] turns
on. The cam [B] rotates away from the pick-up roller release lever [C]. The lever then
rises and the pick-up roller [D] drops onto the original.
When the original reaches the entrance sensor, the pick-up motor turns on again. The
cam pushes the lever down, and the pick-up roller rises until the pick-up roller HP
sensor [E] detects the actuator [F].
PTM
2-1
B070/B071
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2.1.2 BOTTOM PLATE LIFT
[F]
[E]
[B]
[D]
[A]
[C]
[B]
[F]
B070D917.WMF
When an original is placed on the original tray, the original set sensor [A] turns on, the
pick-up roller [B] drops on to the original, and the bottom plate position sensor [C]
turns off. Then the bottom plate motor [D] turns on and lifts the bottom plate [E] by
raising the lift lever [F] until the bottom plate position sensor turns on.
The level of the pick-up roller drops as the stack of originals becomes smaller, and
eventually, the bottom plate position sensor [C] turns off. Then, the bottom plate motor
turns on and lifts the bottom plate until the bottom plate position sensor turns on. This
keeps the original at the correct height for feeding.
PTM
2-2
B070/B071
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2.1.3 PICK-UP AND SEPARATION
[D]
[A]
[B]
[E]
[C]
[A]
[B]
[C]
B070D918.WMF
B070D919.WMF
The original separation system is a Feed and Reverse Roller (FRR) system. The pick-
up roller [A], feed belt [B], and separation roller [C] are driven by the feed-in motor [D].
To drive this mechanism, the feed-in motor [D] and feed-in clutch [E] turn on.
(ꢀ Handling Paper> Handling Originals> Document Feed> FRR with Feed Belt)
PTM
2-3
B070/B071
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2.1.4 ORIGINAL FEED
[D]
[B]
[A]
[C]
B070D920.WMF
When the leading edge of the original turns the entrance sensor [A] on, the feed-in
clutch [B] turns off and the drive for the feed belt is released. The original is fed by the
transport rollers [C].
At the same time, the pick-up motor starts again and the pick-up roller [D] is lifted up.
When the pick-up roller HP sensor turns on, the pick-up motor stops (see Pick-up
Roller Release).
PTM
2-4
B070/B071
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2.1.5 ORIGINAL SIZE DETECTION
[B]
[C]
[D]
[G]
[F]
[A]
B070D921.WMF
[E]
The ADF detects the original size by combining the readings of original length sensor
[A], and original width sensors-1 [B], -2 [C], and -3 [D].
Original Length
The original length sensor and the disk [E] (connected to the transport roller) generate
a pulse signal. The CPU counts pulses, starting when the leading edge of the original
turns on the registration sensor [F], until the trailing edge of the original turns off the
entrance sensor [G].
Original Width
The CPU detects original width using three original width sensors -1, -2, -3 as shown
above. Three small circles on the diagram indicate the positions of the sensors.
Original Width Sensor Location
A4SEF
B4/B5LEF
DLT/LT LEF
A3/A4LEF
B070D922.WMF
Detectable Paper Sizes
Please refer to the “1.2 ADF” table in “Specifications”.
PTM
2-5
B070/B071
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2.1.6 ORIGINAL TRANSPORT
[B]
[A]
[E]
[C]
B070D923.WMF
[D]
3.5 mm
B070D924.WMF
The transport belt [A] is driven by the transport belt motor [B]. The transport belt motor
starts when the copier sends an original feed-in signal.
The pressure rollers inside the transport belt maintain the correct pressure between
belt and original. The pressure roller [C] closest to the left original scale is made of
rubber for the stronger pressure needed for thick originals. The other rollers are
sponge rollers.
Normally, originals are manually placed at the left rear corner, so an original [D] fed
from the ADF must also be at this position. But if the original touches the rear scale [E]
as it feeds, original skew, jam, or wrinkling may occur.
To prevent such problems, the original transfer position is set to 3.5 mm away from
the rear scale as shown. The 3.5 mm gap is compensated for by changing the starting
position of the main scan for when the image is exposed on the drum.
PTM
2-6
B070/B071
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2.1.7 ORIGINAL SKEW CORRECTION
[A]
7 mm
B070D925.WMF
[B]
The transport belt motor remains energized to carry the original to the right about 7
mm past the left scale [A]. Then the motor stops and reverses to feed the original 12
mm to the left against the left scale to correct skew. This forces the original to hit the
left scale, which aligns the trailing edge to minimize original skew on the exposure
glass.
If thin original mode is selected, the original is not forced back against the left scale.
This is to prevent damage to the original.
After a two-sided original has been inverted to copy the 2nd side, it is fed in from the
inverter against the left scale [B] without skew correction.
NOTE: The bottom drawing applies to duplex scanning; the top two drawings do not
apply in this mode.
The amount of reverse feed against the left scale can be adjusted as follows:
• One-sided originals, and side 1 of two-sided originals: SP6006-3 (DF Registration
Adjustment – Leading Edge Duplex 1st)
• Side 2 of two-sided originals: SP6006-4 (DF Registration Adjustment – Leading
Edge Duplex 2nd).
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2.1.8 ORIGINAL INVERSION AND FEED-OUT
General Operation
[A]
B070D926.WMF
When the scanner reaches the return position, the copier CPU sends the feed-out
signal to the ADF. When the ADF receives the feed-out signal, the transport belt motor
and feed-out motor [A] turn on. The original is then fed out to the exit tray or fed back
to the exposure glass after reversing in the inverter section.
This ADF has two exit trays. For single-sided original mode, the original is fed out
straight out to the right exit tray, but for double-sided original mode, the original is fed
out to the upper exit tray.
This causes the originals to be fed out in the correct order on the exit trays and allows
the maximum one-to-one copy speed for each mode.
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Original Inversion
[F]
[B]
[E]
[G]
[D]
[A]
[C]
B070D927.WMF
When the ADF receives the original invert signal from the copier, the transport belt
motor, feed-out motor, exit gate solenoid [A], and inverter gate solenoid [B] turn on
and the original is fed back to the exposure glass through the inverter roller [C], exit
gate [D], inverter guide roller [E], inverter gate [F], and inverter roller.
The transport belt motor reverses shortly after the leading edge of the original turns on
the inverter sensor [G], and feeds the original to the left scale.
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Original Exit (Single-Sided Original Mode)
[B]
[A]
[C]
B070D928.WMF
The exit gate solenoid [A] remains off, the exit gate [B] remains closed, and the
original is fed out to the right exit tray.
The speed of the motor is reduced about 30 mm from the trailing edge of the original
to ensure the originals stack neatly on the exit tray. This timing is determined by the
length of the original, and the time since the exit sensor [C] detected the leading edge.
The transport belt motor turns off after the exit sensor [C] turns off.
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Original Exit (Double-Sided Original Mode)
[C]
[E]
[A]
[B]
[D]
B070D929.WMF
The exit gate solenoid [A] turns on and the exit gate [B] opens.
The inverter gate solenoid [C] remains off, and the original is fed out to the upper tray.
The transport belt motor turns off when the trailing edge of the original passes the exit
sensor [D].
To stack the originals neatly on the upper tray, the feed-out motor speed is reduced
shortly after the trailing edge of the original turns off the inverter sensor [E].
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2.2 SCANNING
2.2.1 OVERVIEW
4
6
2
3
8
7
5
9
1
10
B070D001.WMF
12
13
11
1. Scanner Motor
10. LCDC (LCD Control Board)
2. White Plate (on exposure glass) 11. CCD (Charge Coupled Device)
3. 2nd Mirror
12. Original Length Sensor (APS)
13. Scanner Lens
4. Exposure Lamp (Xenon)
5. Exposure Glass
6. 1st Mirror
14. 3rd Mirror
15. Original Width Sensors 1, 2, 3 (APS)
16. Scanner HP Sensor
7. Lamp Regulator
8. SBU Cooling Fan
9. Optics Cooling Fan
17. Optics Anti-condensation Heater (option)
One xenon lamp (23W) as the exposure lamp [4] illuminates the original. The image is
reflected onto the CCD [11] (600 dpi resolution) via the 1st, 2nd, and 3rd mirrors, and
through the lens [13].
The lens, CCD, and SBU are in a single unit, the lens block. The optical axis, focus,
and MTF are pre-adjusted, so this lens block requires no adjustment in the field. The
1st scanner consists of the exposure lamp [4], the lamp regulator [7] and the 1st
mirror.
Two fans, the optics cooling fan [9] and the SBU cooling fan [8], draw cool air into the
scanning unit. The optics cooling fan turns on when the scanner motor starts and turns
off 10 seconds after the scanner motor turns off. The SBU cooling fan operates while
the operation switch is on. The optional optics anti-condensation heater [17] (if
installed as an option) turns on while the main switch is off, to prevent moisture from
forming on the optics.
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2.2.2 SCANNER DRIVE
[C]
[D]
[E]
[B]
[A]
[F]
[G]
B070D003.WMF
The scanner motor is a dc servo motor. The 1st and 2nd scanners [A, B] are driven by
the scanner motor [C] through the timing belt [D], scanner drive pulley [E], scanner
drive shaft [F], and two scanner wires [G].
The MCU (Motor Control Unit) board controls the scanner motor. The exposure lamp
scans a sheet with 100% magnification at 515 mm/s and returns to the scan position
for the next scan at 2500 mm/s.
Magnification and Reduction
Magnification and reduction in the main scan direction are done in the IPU board.
Magnification and reduction in the sub scan direction, however, are done by
controlling the speed of the scanner motor in sync with the main scan processing done
in the IPU.
• Magnification above 101% is done in the IPU. For example, at 200% magnification,
the IPU doubles magnification while the scanner motor speed remains at 100%.
• Reduction in the range 51% to 100% is done by the scanner motor.
• Reduction in the range 25% to 50% is done by the scanner motor, assisted by IPU
processing. For example, at 40% reduction, the scanner motor speed is 80% and
the IPU reduces the image by 1/2.
• Reduction below 25% is done by the scanner motor, assisted by IPU processing.
For example, at 24% reduction the scanner motor speed is 96% and the IPU
reduces the image by 1/4.
NOTE: Magnification in the sub scan direction can be adjusted by changing the
scanner motor speed with SP4008 (Scanner Sub Scan Magnification).
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2.2.3 ORIGINAL SIZE DETECTION
[F]
[G]
[A]
[B]
[C]
B070D052.WMF
[D]
[E]
B070D535.WMF
There are three reflective sensors at three locations in the optics cavity for original
size detection.
The original width sensor [A] detects the original width, and the original length sensor
1 [B] and original length sensor 2 [C] detect the original length. These are the APS
(Auto Paper Select) sensors.
Inside each APS sensor, there is an LED [D] and either three photoelectric devices [E]
(for the width sensor) or one photoelectric device (for each length sensor). In the width
sensor, the light generated by the LED is separated into three beams and each beam
scans a different point of the exposure glass (in each length sensor, there is only one
beam). If the original or ADF cover is present over the scanning point, the beam is
reflected and each reflected beam exposes a photoelectric device and activates it.
While the main switch is on, these sensors are active and the original size data is
always sent to the main CPU. However, the main CPU checks the data only when the
ADF is being closed.
The ADF functions as the platen. The DF position sensor [F] (attached to the ADF)
detects whether the ADF is open or closed.
The APS start sensor [G] triggers auto paper size detection.
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NOTE: The Europe/Asia model has one length sensor (L1), but the North American
model has two length sensors (L1, L2)
Length
Sensor
SP4301
Display
Original Size
Width Sensor
A4/A3 Version
LT/DLT Version
11" x 17"
2
H
1
H
H
H
H
H
L
L
L
L
1
2
H
H
L
L
L
3
H
A3
B4
F4
00011111
00011110
00011100
00001100
00001000
00000000
00000111
00000110
00000100
H
H
H
H
L
10" x 14"
H
H
L
L
L
L
L
L
H
81/2" x 14" (8" x 13")
81/2" x 11"
—
A4 SEF
B5 SEF
A5 SEF
A4 LEF
B5 LEF
A5 LEF
L
L
L
L
L
51/2" x 81/2"
11" x 81/2"
—
L
L
H
H
H
H
H
L
L
L
81/2" x 51/2"
H:High (Paper Present) L: Low
The original size data is taken by the main CPU when the DF position sensor is
activated. This is when the ADF is positioned about 12 cm above the exposure glass.
At this time, only the sensor(s) underneath the original receive the reflected light and
switch on. The other sensor(s) are off. The main CPU recognizes the original size
from the on/off signals from the five sensors.
If the copy is made with the ADF open, the main CPU decides the original size from
the sensor outputs when the Start key is pressed.
The above table shows the outputs of the sensors for each original size. This original
size detection method eliminates the necessity for a pre-scan and increases the
machine productivity.
Length Sensor 1
0,0
Length Sensor 2
A5 LEF
A4 LEF
Width Sensor 1
Width Sensor 2
A5 SEF
B4
B5 SEF
A4 SEF
Width Sensor 3
A3
B070D931.WMF
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2.3 IMAGE PROCESSING
2.3.1 IMAGE PROCESSING STEPS AND RELATED SP MODES
The following tables describe the image processing path and the related SP modes
used for each image processing mode.
The user can adjust many of the image processing parameters with a UP mode
(Copy/Document Server Features> General Features> Original Mode Quality Level),
using fixed settings such as Sharp, Normal, and Soft. Each of these fixed settings
have different parameters, but user changes do not affect the relevant SP mode
settings.
If the user is not satisfied with any of the available settings for this UP mode, the
technician can adjust the SP modes. However, the SP mode settings are not used
unless the user selects ‘Service Mode’ with the UP Mode.
Soft
Photo Priority
Screened Printed
Soft
Normal
Normal
Normal
Normal
Normal
Sharp
Text Priority
Glossy Phot
Sharp
Service Mode
Service Mode
Service Mode
Service Mode
Service Mode
Text
Text/Photo
Photo
Pale
Soft
Sharp
Generation
B070D011.WMF
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2.3.2 IMAGE PROCESSING OVERVIEW
CCD
SBU
PCI BUS
BCU
IPU
Controller
Polygon Motor
LDB
HDD
Key
Data flow
OPC
Signal flow
B070D934.WMF
SBU:
BCU:
IPU:
Photoelectric conversion, Odd/even allocation, Amplification, A/D
Conversion (analog to digital), Light intensity detection (scanning)
Engine control, Scanner control, SBU settings, IPU settings, LDB
settings
Shading correction, Image Processing, Main/Sub scan
magnification, Video path switching, Image Compression/
Decompression. The GAVD on this board performs density
conversion processing, FCI processing, and edge processing, and
also generates the test patterns.
Controller: System control, software application control, image storage control,
file compression/decompression
LDB:
8-beam laser exposure, binary-to-grayscale conversion,
synchronization detection
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2.3.3 IMAGE PROCESSING FLOW
Image processing is done by the IPU (Image Processing Unit), following the steps
shown below.
Overall image processing for this machine is designed to:
• Target edges with filters to improve the angles of text characters and reduce the
occurrence of moiré filled areas.
• Improve the evenness of granular areas in images
Corrects the dispersion of the scanning
lens and CCD.
Shading Correction
Ð
Gamma Correction
Background erase
Ð
Pre-Filter
Reduces the occurrence of moiré.
Ð
Main Scan Magnification
Ð
Determines if an image is text or raster
image data and processes the data
accordingly.
Auto Select
Selects the best methods for Filtering,
Density Control, and Grayscale
Processing.
Ð
MTF and smoothing (MTF filter of
previous machines)
Filtering
Either of two filters is selected by Auto
Select above.
Ð
Independent Dot Erase
Removes isolated pixels.
Ð
Line Width Correction
Ð
Employs one of two gamma tables,
selected by Auto Select above
Density Control
Ð
Error diffusion, dithering, or binary picture
processing
Grayscale Processing
Black-and-white digitization or dithering is
selected by “Auto Select above.
Ð
Video Path
Ð
ÍÎ
Application (printer)
LD Unit
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2.3.4 IMAGE PROCESSING MODES
The user can select one of the following five modes with the User Tools screen: Text,
Text/Photo, Photo, Pale, Generation.
Each mode has four different settings (described below). Each mode has a Custom
Setting that can be customized with SP modes to meet special requirements that
cannot be covered by the standard settings.
NOTE: To see these settings in the User Tools mode, press the User Tools key, press
“Copier/Document Server Functions”, then press “Copy Quality”.
Mode
Setting
Soft
Function
Rough texture background drops out.
Used for black-and-white printed material and
documents that contain mainly text. Easily reads lines
as well as text.
Use for newspapers, time schedules, or any type of
printed material with fine print. Emphasizes black over
white.
Normal
Sharp
Text
Custom
Setting
Stores SP command settings.
Photo Priority
Normal
Used for documents that contain text and color or black-
and-white photos, such as catalogs, magazines, maps,
etc. Provides more faithful reproduction than the Text
mode.
Tex/Photo
Text Priority
Custom
Setting
Stores SP command settings.
Used for magazines, graphics, for smooth reproduction.
Employs dithering.
Used for copying photographs, graphics, for sharp
reproduction. Employs error diffusion.
Print Photo
Normal
Photo
Pale
Used for best results in copying glossy photographs for
sharp reproduction. Employs error diffusion.
Stores SP command settings. Employs either error
diffusion or dithering, depending on an SP setting.
Glossy Photo
Custom
Settings
Soft
Normal
Sharp
Used for low density documents with text handwritten in
black or color pencil (or carbon copies) such as
receipts, invoices, etc.
Custom
Setting
Stores SP command settings.
Generation Soft
Copy
Used to achieve an image smoother than Normal.
Used to achieved best reproduction of “copies of
copies” by smoothing the image.
Normal
Used to emphasize lines and text stronger than Normal
for better image quality.
Sharp
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Custom
Setting
Stores SP command settings.
Drops out the blue background color of tab sheets or
other paper.
Drops out the green background color of tab sheets or
other paper.
Drops out the orange background color of tab sheets or
other paper.
Strong
Medium
Weak
Background
Dropout
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2.3.5 IMAGE QUALITY SP ADJUSTMENTS
Adjustments are easier with this machine, because the parameters have been
grouped and no longer have to be adjusted one by one.
In this section, we will cover the custom settings for each of the 5 original modes:
These custom settings are:
• Image Quality
• Line Width Correction
Settings adjustable for each original mode will also be covered (these do not just
affect the custom settings; they also affect all sub original modes, such as sharp text).
• Independent Dot Erase
• Background Erase
Custom Settings for Each Mode: Image Quality
Custom Setting: Text Mode Image Quality
Item
Range
Default
SP No.
25~55%
55.5~75%
75.5~160%
160.5~400
%
SP4903 001
SP4903 002
SP4903 003
SP4903 004
Text
0~10
5 Normal
If the value is increased, the outlines of lines become sharper but this could cause
moiré to appear in dot patterns. If the value is decreased, image patterns become
smoother, the occurrence of moiré decreases, but the corners of characters and
intersections of lines at acute angles may not be as sharp.
There are two sets of custom settings for photo mode. One is for dithering, and one is
for error diffusion. The set of custom settings that will be used depends on the setting
of SP4904 002. The possible settings are:
0
1
2
3
Dither (106 line)
Dither (141 line)
Dither (212 line)
Error Diffusion
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Custom Setting: Photo Mode (Dithering) Image Quality
Item
Range
Default
SP No.
25~55%
55.5~75%
75.5~160%
160.5~400
%
SP4903 005
SP4903 006
SP4903 007
SP4903 008
Photo
0~6
3 Print Photo
Used for coarse, dithered tone photographs such as newsprint.
If the value is increased, the photo becomes sharper, but blurring could occur in the
sub scan direction. If the value is decreased, blurring in the sub scan direction is less
obvious but outlines become fuzzy.
Custom Setting: Photo Mode (Error Diffusion) Image Quality
Item
Range
Default
SP No.
25~55%
55.5~75%
75.5~160%
160.5~400
%
SP4903 009
SP4903 010
SP4903 011
SP4903 012
Photo
0~6
1 Normal
Used for printed materials (magazines, etc.) with photographs to sharp patterns in
copies.
If the photos have dithered tones, the image becomes sharper if the value is
increased, but blurring could occur in the sub scan direction. If the value is decreased,
blurring in the sub scan direction is less obvious but outlines become fuzzy.
Custom Setting: Text/Photo Mode Image Quality
Item
Range
Default
SP No.
25~55%
55.5~75%
75.5~160%
160.5~400
%
SP4903 013
SP4903 014
SP4903 015
SP4903 016
Text/Phot
o
0~10
5 Normal
See the remarks for ‘Custom Setting: Text Mode Image Quality’ above.
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Custom Setting: Pale Mode Image Quality
Item
Range
Default
SP No.
25~55%
55.5~75%
75.5~160%
160.5~400
%
SP4903 017
SP4903 018
SP4903 019
SP4903 020
Pale
0~10
5 Normal
If the value is increased, low density areas become sharper, but the background could
become dirtier. If the value is decreased, the background disappears but the density of
low density areas becomes low.
Custom Setting: Generation Mode Image Quality
Item
Range
Default
SP No.
25~55%
55.5~75%
75.5~160%
160.5~400
%
SP4903 021
SP4903 022
SP4903 023
SP4903 024
Generatio
n
0~10
5 Normal
See the remarks for ‘Custom Setting: Pale Mode Image Quality’ above.
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Custom Settings for Each Mode: Line Width Correction
Custom Setting: Text Mode Line Width Correction
Selection
Line Width
Range
Default
Content
0 (Thin) - 4 (Off) - 8
(Thick)
SP No.
SP4903 080
0~8
2
Correction
Main Scan
Sub Scan
Item
0~1
0~1
1
1
0:OFF 1:ON
0:OFF 1:ON
SP4903 081
SP4903 082
If the value is made smaller, the line width correction becomes thinner, and if the value
is made larger, the line width correction becomes thicker. To switch this feature off,
select “4”.
If the above settings do not make the lines thin enough, use SP4904 020 (Image
Quality Exposure: Thin Line - Text Mode). Normally, SP4904 020 is set to 0 (OFF). As
the setting is increased (1~3), the line width correction effect becomes stronger, and
lines become thinner. All settings of SP4903 080 will be affected by the same amount.
Custom Setting: Photo Mode Line Width Correction
Selection
Line Width
Range
Default
Content
0 (Thin) - 4 (Off) - 8
(Thick)
SP No.
0~8
4
SP4903 083
Correction
Main Scan
Sub Scan
Item
0~1
0~1
1
1
0:OFF 1:ON
0:OFF 1:ON
SP4903 084
SP4903 085
See the remarks for ‘Custom Setting: Text Mode Line Width Correction’ above.
If the above settings do not make the lines thin enough, use SP4904 021 (Image
Quality Exposure: Thin Line – Photo Mode). Normally, SP4904 021 is set to 0 (OFF).
As the setting is increased (1~3) the line width correction effect becomes stronger,
and lines become thinner. All settings of SP4903 083 will be affected by the same
amount.
Custom Setting: Text/Photo Mode Line Width Correction
Selection
Line Width
Range
Default
Content
0 (Thin) - 4 (Off) - 8
(Thick)
SP No.
0~8
4
SP4903 086
Correction
Main Scan
Sub Scan
Item
0~1
0~1
1
1
0:OFF 1:ON
0:OFF 1:ON
SP4903 087
SP4903 088
See the remarks for ‘Custom Setting: Text Mode Line Width Correction’ above.
If the above settings do not make the lines thin enough, use SP4904 022 (Image
Quality Exposure: Thin Line – Text/Photo Mode). Normally, SP4904 022 is set to 0
(OFF). As the setting is increased (1~3) the line width correction effect becomes
stronger, and lines become thinner. All settings of SP4903 086 will be affected by the
same amount.
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Custom Setting: Pale Mode Line Correction
Selection
Line Width
Range
Default
Content
0 (Thin) - 4 (Off) - 8
(Thick)
SP No.
0~8
4
SP4903 089
Correction
Main Scan
Sub Scan
Item
0~1
0~1
1
1
0:OFF 1:ON
0:OFF 1:ON
SP4903 090
SP4903 091
See the remarks for ‘Custom Setting: Text Mode Line Width Correction’ above.
If the above settings do not make the lines thin enough, use SP4904 023 (Image
Quality Exposure: Thin Line – Pale Mode). Normally, SP4904 023 is set to 0 (OFF).
As the setting is increased (1~3) the line width correction effect becomes stronger,
and lines become thinner. All settings of SP4903 089 will be affected by the same
amount.
Custom Setting: Generation Copy Line Width Correction
Selection
Line Width
Range
Default
Content
0 (Thin) - 4 (Off) - 8
(Thick)
SP No.
SP4903 092
0~8
1
Correction
Main Scan
Sub Scan
Item
0~1
0~1
1
1
0:OFF 1:ON
0:OFF 1:ON
SP4903 093
SP4903 094
See the remarks for ‘Custom Setting: Text Mode Line Width Correction’ above.
If the above settings do not make the lines thin enough, use SP4904 024 (Image
Quality Exposure: Thin Line – Generation Mode). Normally, SP4904 024 is set to 0
(OFF). As the setting is increased (1~3) the line width correction effect becomes
stronger, and lines become thinner. All settings of SP4903 092 will be affected by the
same amount.
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Settings Adjustable for Each Original Mode
Independent Dot Erase
Item
Range
Default
SP No.
Text
Photo
Text/Photo
Pale
Generation
Copy
8
0
0
0
8
SP4903 060
SP4903 061
SP4903 062
SP4903 063
SP4903 064
0~14
Independent dot erase removes isolated black pixels. As this setting is increased, the
greater the number of eliminated isolated pixels. Setting to zero switches this function
off.
Background Erase
Item
Range
Default
SP No.
Text
Photo
Text/Photo
Pale
Generation
Copy
SP4903 070
SP4903 071
SP4903 072
SP4903 073
SP4903 074
0~255
0 (Off)
Background erase attempts to eliminate the heavy background texture from copies of
newspaper print or documents printed on coarse paper. Pixels of density below the
selected threshold level are eliminated. Setting this feature to zero switches it off.
Increasing this setting increases the effect of background erase.
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2.3.6 RELATION BETWEEN THE SP AND UP SETTINGS
The tables below illustrate the relationship between the UP and SP settings for each
of the 5 original modes. The scale across the top of the table is the range of settings
for the SP modes.
The settings in the gray areas indicate the UP settings overlaid on the SP scale of the
table. Words that are not shaded within the tables, such as ‘softer’, indicate how the
image changes if you change the SP setting is a certain direction. The related UP
mode is User Tools> Copier Features> General Features> Copy Quality.
Text Mode
Setting
0
1
2
3
3
3
4
4
4
5
5
5
6
6
6
7
8
9
10
SP No.
25% ~55%
SP4903 001
55.5 ~ 75%
SP4903 002
SP4903 003
SP4903 004
75.5 ~ 160%
160.5 ~ 400%
Photo Mode (Dithering)
Setting
0
1
2
SP No.
25% ~55%
SP4903 005
SP4903 006
SP4903 007
SP4903 008
55.5 ~ 75%
75.5 ~ 160%
160.5 ~ 400%
Photo Mode (Error Diffusion)
Setting
0
1
2
SP No.
25% ~55%
SP4903 009
55.5 ~ 75%
SP4903 010
SP4903 011
SP4903 012
75.5 ~ 160%
160.5 ~ 400%
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Text/Photo Mode
Setting
0
0
0
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10
SP No.
25% ~55%
SP4903 013
55.5 ~ 75%
SP4903 014
SP4903 015
SP4903 016
75.5 ~ 160%
160.5 ~ 400%
Pale Mode
Setting
10
SP No.
25% ~55%
SP4903 017
55.5 ~ 75%
SP4903 018
SP4903 019
SP4903 020
75.5 ~ 160%
160.5 ~ 400%
Generation Copy
Setting
10
SP No.
25% ~55%
SP4903 021
55.5 ~ 75%
SP4903 022
SP4903 023
SP4903 024
75.5 ~ 160%
160.5 ~ 400%
Background Color Dropout
SP NO. MODE NAME
TARGETTED
COLOR
Orange
VALUES
4901 020 Background Dropout – Weak
165 ~ 255 (Default: 180)
115 ~164 (Default: 155)
Background Dropout –
Medium
Green
4901 021
4901 022 Background Dropout - Strong
Blue
15 ~ 144 (Default: 105)
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2.4 LASER EXPOSURE
2.4.1 OVERVIEW
1
2
3
4
5
6
7
12
11
8
10
9
B070D101.WMF
1. LD Unit
7. 2nd Mirror
2. Polygon Mirror Motor Control Board 8. Drum
3. Polygon Mirror Motor
4. F-Theta Lens 1
5. F-Theta Lens 2
6. BTL Lens
9. Toner Shield Glass
10. 1st Mirror
11. Laser Synchronization Detector
12. Cylindrical Lens
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2.4.2 LASER EXPOSURE MECHANISM
[D]
[A]
[B]
[C]
B070D102.WMF
The LD unit consists of two 4-channel LDA’s (Laser Diode Arrays) and two collimating
lenses.
Each LDA produces 4 beams [A]. Each collimating lens [B] is a fixed lens, seated in a
V-groove and held in place by a spring and a screw.
Four beams from each LDA [C] pass through the collimating lenses, though the
apertures [D], then strike the polygonal mirror. Due to this multi-beam writing, the
polygonal mirror motor speed can be reduced, thus the noise generated by the
polygon mirror motor and the wear on the motor can be reduced.
Auto Power Control (APC)
A built-in photo diode detects the light emitted from the LD unit. When the photo diode
detects this light, it generates a signal and the feedback of this signal to the LD control
board is used to adjust the strength and amount of light in the laser beams.
NOTE:
The laser diode array is assembled and adjusted in the factory, and does
not require physical position adjustment in the field.
LD drivers control the power output from the laser diodes.
(ꢀ Digital Processes > Printing > Laser Printing > Laser Diode Power Control)
NOTE: The reference levels are adjusted on the production line. Never touch the
variable resistors on the LD unit.
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2.4.3 LD SAFETY SWITCHES
Inter Lock SW
+5V
LDB
FAN
POLYGON
PSU
+24V
+LD5V
LDD
DATA0
1k
DATA0
DATA0
LD0
LD1
IP U
510
XAPC0
XAPC1
XAPC0
5k
DATA1
DATA1
DATA1
1k
XAPC1
DATA2
DATA2
DATA2
DATA3
DATA4
DATA3
DATA3
BGAVD2
DATA4
LD4
LD5
DATA4
510
1k
XAPC4
XAPC4
5k
DATA5
DATA5
DATA5
1k
XAPC5
XAPC5
DATA6
DATA6
DATA6
DATA7
LD5V
DATA7
DATA7
6.8k
10k
LDOFF
LDOFF
B070D998.WMF
To ensure technician and user safety and to prevent the laser beam from inadvertently
switching on during servicing, there are four safety switches inside the front cover
(these are the 4th front left and 4th front right door safety switches).
When one of the front covers is open, the 5 V line connecting to the LD drivers (LDD)
is disconnected.
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2.4.4 MULTI-BEAM LINE EXPOSURE
B070D212.WMF
[A]
The LD unit contains two laser diode arrays (LDA) [A], each with one 4-channel array,
allowing the LD unit to produce a total of eight beams. This multi-beam exposure
mechanism has the following advantages:
• Reduces the number of rotations required of the polygon mirror motor.
• Reduces the amount of noise generated by the polygon mirror motor because it is
rotating at lower speed.
• Reduces the need for LD unit replacement.
• Allows production of a more precision beam on a stable platform.
The laser synchronization detector detects only Channel 0 and Channel 1, the
uppermost beams of each parallel array.
The main scan pitch of Channels 2 to 7 is determined by setting SP2115 001~006
(Main Scan Beam Pitch Adjustment) at the factory. For this reason, when the LD unit
is replaced, these SP codes must be input for the new unit. The correct SP settings
are printed on a label attached to the LD unit.
An SC code is issued for a laser synchronization detector error if the LD unit
malfunctions and does not emit the laser beams.
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2.4.5 POLYGON MIRROR MOTOR
The polygon mirror reflects the laser beam onto the OPC drum to expose the image
line by line in the main scan direction. The polygon mirror motor rotates at a constant
speed, even while the copier is in standby mode, but shuts off when the copier enters
the energy conservation mode.
The polygon mirror motor has no brake mechanism, so it requires about 3 minutes to
stop rotating. Before moving the machine or before servicing the motor or the area
around the polygon mirror motor, you should switch off the copier main power switch,
disconnect the machine, and wait at least three minutes for the motor to stop rotating.
NOTE: The polygon mirror motor requires about 10 seconds to reach full speed after
the machine awakes from the energy conservation mode, or after the machine
is switched from the normal mode to low speed mode for printing on thick
paper. The machine cannot print during this 10 second interval until it reaches
full rotation speed.
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2.4.6 1200-DPI RESOLUTION
2
0
4
Sub Scan
6
0 LDA 1-0
4 LDA 1-2
7
5
3 1
21.2 µm (1200 dpi)
42.3 µm
(600 dpi)
22.3 mm
B070D210.WMF
Main Scan
1 LDA 2-0
5 LDA 2-2
6 LDA 1-3
7 LDA 2-3
2 LDA 1-1
3 LDA 2-1
The original is scanned at 600 dpi, then the 600 dpi output is boosted to 1200 dpi 1-bit
data during image processing in the IPU.
This machine can produce an image at 1200 dpi by writing each dot twice, possibly
with two different values, depending on the results of image processing. This is
achieved with the LD unit, which has two laser diode arrays, each with 4 channels
which together produce 8 beams. As shown in the illustration above, the beams from
each laser diode are emitted in two parallel lines.
For copying, 1200 dpi is used. For printing, the default is 600 dpi, but 1200 dpi can be
selected.
The diagram shows how the two sets of four beams are interlaced to produce a sub
scan resolution of 1200 dpi.
There are two parallel rows of four beams, separated by 22.3 mm in the main scan
direction. In each of these rows, the beams are spaced at 42.3 micrometer intervals
(this is the same as 600 dpi).
The rows are also offset in the sub scan direction by 21.2 micrometers.
The net result is that we have dots at 21.2 micrometer intervals, which is the same as
1200 dpi
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2.4.7 OPTICAL PATH
[D]
[B]
[C]
[E]
[A]
[F]
[G]
[H]
[I]
[J]
[K]
B070D101.WMF
The output path from the laser diode to the drum is shown above.
The LD unit [A] outputs eight laser beams to the polygonal mirror [B] (six mirror
surfaces) through the cylindrical lens [C] and the 1st mirror [D].
Each surface of the polygon mirror reflects eight full main scan lines. The laser beams
go to the F-theta lens 1 [E], F-theta lens 2 [F], BTL (barrel toroidal lens) [G], and mirror
[H]. Then these laser beams go to the drum through the toner shield glass [I].
The laser synchronizing detector [J] determines the main scan starting position. This
sensor sends a synchronization signal when the laser synchronization detector mirror
[K] reflects the laser beam to the detector as the laser beam starts its sweep across
the drum.
The laser synchronization detector detects only the beams emitted from Channels 1
and 0, the uppermost beams of each parallel array.
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2.5 DRUM UNIT
2.5.1 PROCESS CONTROL
Drum potential gradually changes for the following reasons:
• Dirty optics, exposure glass
• Dirty charge corona casing, grid plate
• Deterioration of drum sensitivity
What Happens at Power On
Here is a description of what happens while the fusing temperature is below 100°C
immediately after the main power switch is switched on (process control must also be
enabled with SP3901 001, or this will not happen).
At any time, this process can also be executed manually by using SP2962. However,
process control must be enabled with SP3901 001 and the fusing temperature must
be below 100°C, or this will not work.
1. Drum potential sensor is calibrated.
2. Drum starts first rotation after fusing temperature reaches 100°C.
3. ID sensor is calibrated (Vsg).
4. Readout from the drum potential sensor is used to adjust:
• Grid voltage (Vg)
• Laser diode (LD) power.
NOTE: This step occurs only if process control is enabled with SP3901 001 (Auto
Process Control On/Off Setting). If this SP is disabled, then:
• Development bias is set to the value stored in SP2201 1
• Grid voltage is set to the value stored in SP2001 1
• Laser power is set to the values stored in SP2103
5. TD sensor is calibrated (Vref).
Any SC codes that are generated during auto process control are logged in the
memory and do not appear. The machine will continue to operate.
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2.5.2 DRUM UNIT COMPONENTS
8
9
1
7
6
5
2
B070D865.WMF
4
3
The drum unit consists of the components shown in the above illustration. An organic
photoconductor drum (diameter: 100 mm) is used for this model.
1. OPC Drum
6. Cleaning Brush
7. Cleaning Blade
8. Quenching Lamp
9. Charge Corona Unit
2. Drum Potential Sensor
3. Pick-off Pawl
4. Image Density Sensor
5. Toner Collection Coil
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2.5.3 DRUM DRIVE
[C]
[A]
[B]
[D]
B070D202.WMF
The drive from the drum motor [A] is transmitted to the drum and the cleaning unit
through timing belts, gears, the drum drive shaft [B], and the cleaning unit coupling
[C].
The drum motor has a drive controller, which outputs a motor lock signal when the
rotation speed is out of the specified range. The drum speed for the B070 (90 cpm) is
450 mm/s and for the B071 (105 cpm) 500 mm/s.
The flywheel [D] on the end of the drum drive shaft stabilizes the rotation speed.
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2.5.4 DRUM CHARGE
Overview
[A]
B070D203.WMF
This copier uses a double corona wire Scorotron system to charge the drum. Because
of the high speed of this copier, two corona wires are needed to give a sufficient,
uniform negative charge to the drum surface. The stainless steel grid plate makes the
corona charge uniform and controls the amount of negative charge on the drum
surface by applying a negative voltage to the grid.
The CBG (Charge, Bias, Grid) power pack [A] supplies a constant corona current to
the corona wires, –1600 µA for Photo mode and –1400 µA for all other modes (Text,
Text/Photo, Pale, Generation Copy).
The voltage to the grid plate is automatically controlled to maintain the correct image
density in response to changes in drum potential caused by dirt on the grid plate and
charge corona casing. This is described in Process Control section in more detail.
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Charge Corona Wire Cleaning
[D]
[A]
[A]
[B]
[C]
B070D558.WMF
Air flowing around the charge corona wire may deposit toner particles on the corona
wires. These particles may interfere with charging and cause low density bands on
copies.
The wire cleaner pads [A] automatically clean the wires to prevent such a problem.
The wire cleaner is driven by a dc motor [B]. Normally the wire cleaner [C] is at the
front end (the home position). Just after the main switch is turned on, the wire cleaner
motor turns on to bring the wire cleaner to the rear and then back to the home
position. When the wire cleaner [D] moves from the rear to the home position, the wire
cleaner pads swivel, bringing the pads into contact with the wires, and clean the wires
as it moves forward.
Cleaning is executed when:
• The machine is switched on and the fusing temperature is less than 100°C while
auto process control executes.
• Every 24 hours.
• After every 5,000 copies. This can be adjusted with SP2804 002 (Charge Corona
Cleaner Setting – Corona Wire Cleaning Interval).
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2.5.5 DRUM CLEANING
Overview
[C]
[A]
[B]
[A]
[A]
[D]
B070D866.WMF
[B]
[E]
[B]
B070D867.WMF
This copier uses a counter blade system to clean the drum. In a counter blade system,
the drum cleaning blade [A] is angled against drum rotation. The counter blade system
has the following advantages:
• Less wearing of the cleaning blade edge
• High cleaning efficiency
Due to the high efficiency of this cleaning system, the pre-cleaning corona and
cleaning bias are not used for this copier.
The cleaning brush [B] helps the cleaning blade. The brush removes toner from the
drum surface and any remaining toner is scraped off by the cleaning blade. Toner on
the cleaning brush is scraped off by the mylar [C] and falls onto the toner collection
coil [D]. The coil transports the toner to back to the toner entrance tank in the toner
bank unit for recycling.
To remove any accumulated toner at the edge of the cleaning blade, the drum turns in
reverse for about 40 ms [E] at the end of every copy job. This is also during long copy
jobs every 30 min. For details, refer to SP2506 002 (Cleaning Interval – Multiple Copy
- Inteval) in Section “5. Service Tables”.
The accumulated toner is deposited on the drum and is removed by the cleaning
brush.
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2.5.6 CLEANING UNIT DRIVE
[B]
[A]
[D]
B070D206.WMF
[C]
Drive from the drum motor is transmitted to the cleaning unit drive gear via the timing
belt [A] and the cleaning unit coupling [B]. This coupling drives the cleaning brush [C]
directly. The cleaning brush then transmits the drive to the gear at the front, which
drives the toner collection coil gear [D].
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Cleaning Blade Pressure and Side-to-Side Movement
[C]
[D]
[B]
[A]
B070D868.WMF
The spring [A] always pushes the cleaning blade against the drum. The cleaning blade
pressure can be manually released by pushing up the release lever [B]. To prevent
cleaning blade deformation during transportation, the release lever must be locked in
the pressure release (upper) position.
The guide roller [C] at the rear end of the cleaning blade holder touches the cam gear
[D], which moves the blade from side to side. This movement helps to disperse
accumulated toner to prevent early blade edge wear.
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2.5.7 OTHERS
Air Flow Around the Drum
[E]
[G
[B]
[A]
[C]
B070D208.WMF
[D]
[F]
The drum cooling fan [A] draws cool air through the filter [B] and sends it to the center
of the drum [C], then over the charge corona unit [D].
Holes in the flanges on both ends of the drum allow air to pass through the drum to
cool it. After the air has passed through the center of the drum, the exhaust fan [E]
draws the air out of the interior of the machine, through the toner filter [F] to remove
free floating toner, through the ozone filter [G] to remove ozone, then finally out of the
machine.
To keep the temperature inside the machine constant, the drum cooling fan turns
slowly during standby, but turns faster during copying.
NOTE: This ozone filter does not require replacement.
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Drum Pick-off Pawls
[A]
[B]
[C]
B070D559.WMF
[D]
If the paper does not separate from the drum after image transfer, the drum pick-off
pawls strip the paper from the drum.
Pressure from small springs [A] press the pick-off pawls [B] against the surface of the
drum.
The shaft [C] and the cam [D] move the pick-off pawls from side to side to ensure that
they never remain at the same location (this prevents wear on the drum).
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Drum Quenching
[A]
B070D209.WMF
In preparation for the next copy cycle, light from the quenching lamp [A] neutralizes
any charge remaining on the drum.
The quenching lamp consists of an array of 16 red LEDs extending across the full
width of the drum.
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2.6 DEVELOPMENT
2.6.1 OVERVIEW
7
6
8
1
2
3
9
4
10
13
5
B070D301.WMF
11
12
B070D302.WMF
1. Hopper Filter
8. Separator
2. Hopper Center Filter
3. Toner Hopper Sensor
4. Agitator
9. Toner Transport Coil
10. Development Agitator
11. TD Sensor
5. Toner Supply Roller
12. Paddle Roller
6. Upper Development Roller
7. Doctor Blade
13. Lower Development Roller
This copier uses a double roller development system and a dual component
development process with toner particles 6.8 µm and developer particles 50 µm. To
improve image quality, the width of the magnetic area on the lower development roller
has been reduced.
This system differs from single roller development systems in that:
• It develops the image in a narrower area
• It develops the image twice
• The relative speed of each development roller against the drum is reduced.
This machine contains a toner recycling system. Toner recycled from the drum
cleaning unit is transferred to the toner hopper with fresh toner, where they are mixed
by the toner agitator. The mechanism is explained in the Toner Supply and Recycling
section.
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2.6.2 DEVELOPMENT MECHANISM
[E]
[F]
[G]
[C]
[H]
[A]
B070D303.WMF
[D]
[B]
Toner and developer are mixed in the toner agitator by the cross-mixing roller [A]. The
paddle roller [B] picks up the developer and sends it to the upper development roller
[C]. Internal permanent magnets in the development rollers attract the developer to the
development roller sleeve. Developer from the upper development roller sleeve is also
attracted to the lower development roller [D].
The upper development roller carries the developer past the doctor blade [E] which
trims the developer to the desired thickness. Backspill (excess toner) spills over the
separator [F] to the toner transport coil [G] which sends the developer from back to
front to the cross-mixing roller.
In this machine, black areas of the latent image are at a low negative charge (about –
150 V) and white areas are at a high negative charge (about –800 V).
The development roller is given a negative bias to attract negatively charged toner to
the black areas of the latent image on the drum.
The development rollers continue to turn, carrying the developer to the drum [H].
When the developer brush contacts the drum surface, the low-negatively charged
areas of the drum surface attract and hold the negatively charged toner. In this way,
the latent image is developed.
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2.6.3 DRIVE
[C]
[D]
[F]
[B]
[E]
B070D304.WMF
[A]
The gears in the development unit are driven by the development drive gear [A] when
the development motor [B] (a dc servomotor) turns.
The gears in the toner hopper are driven by the toner supply roller drive gear [C] when
the toner supply roller clutch [D] activates.
A one-way clutch on the paddle roller knob [F] prevents counter-clockwise rotation of
the paddle roller.
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2.6.4 CROSSMIXING
[C]
[B]
[E]
[F]
[A]
[D]
[C]
B070D303.WMF
[E]
[B]
[F]
[A]
[D]
B070D571.WMF
This copier uses a standard cross-mixing mechanism to keep the toner and developer
evenly mixed. It also helps agitate the developer to prevent developer clumps from
forming and helps create the triboelectric charge.
The developer on the turning development rollers [A] is split into two parts by the
doctor blade [B]. The part that stays on the development rollers forms the magnetic
brush and develops the latent image on the drum. The part that is trimmed off by the
doctor blade goes to the backspill plate [C].
As the developer slides down the backspill plate to the agitator [D], the mixing vanes
[E] move it slightly toward the rear of the unit. Part of the developer falls into the auger
inlet and is transported to the front of the unit by the auger [F].
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2.6.5 DEVELOPMENT BIAS
[A]
[B] [C]
[D]
B070D305.WMF
The CBG (Charge Bias Grid) power pack [A] applies the negative development bias (-
550V) to both the lower sleeve roller and upper sleeve roller through the receptacles
[B] and the sleeve roller shafts [C].
The development bias prevents toner from being attracted to the non-image areas on
the drum where there is residual voltage. In addition, the development bias changes
with the image density setting chosen for the copy job by the user.
The development rollers [D] employ fixed shafts that do not rotate. This eliminates
friction on the shafts so they never require lubrication.
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2.7 TONER SUPPLY AND RECYCLING
[G]
2.7.1 OVERVIEW
[C]
[F]
[B]
[E]
[A]
[D]
B070D902.WMF
Toner is supplied from a toner bank [A] on the left side of the machine and separated
from the development unit. The toner bank holds two bottles, but only one bottle
operates at a time.
A toner bottle motor turns the bottle [B], causing toner to leave the bottle and drop into
the toner entrance tank [C].
The toner transport coil in the toner transport tube [D] transports toner to the toner
supply cylinder [E]. Due to the length of the toner supply path, a toner supply pump [F]
is needed to draw the toner into the toner hopper [G].
Here are some important points to remember about the toner bank:
• The toner bank holds two toner bottles. This doubles the toner supply capacity for
the machine and allows replacement of an empty toner bottle while the machine is
operating.
• The machine works even if there is only one bottle installed.
• Toner can be supplied from either the upper or lower toner bottle, but not from both
at the same time. When toner runs out in one bottle, toner supply from the other
bottle starts automatically.
• After the toner near-end message is displayed for both toner bottles, the toner bottle
still has enough toner for about 200 copies.
• Load the lower toner bottle first, then the upper toner bottle. If the upper toner bottle
is loaded first, a message will be displayed on the operation panel to request
loading the lower toner bottle.
• Handle the toner bottles carefully to avoid shaking them.
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2.7.2 TONER BANK
Toner Bottle Switching Mechanism
[D]
[C]
[B]
[A]
[E]
B070D901.WMF
When the upper toner bottle [A] is supplying toner, the upper bottle cap motor [B] pulls
out the toner bottle cap. The upper bottle cap sensor [C] detects the actuator [D] of the
toner bottle opening rod, then the motor shuts off to close the cap again.
Toner is supplied from the toner bottle to the toner entrance tank where a toner near
end sensor (see the next page) checks for the presence of toner in the toner entrance
tank.
When the toner near-end sensor (not shown) can no longer detect any toner, it signals
the machine that it is time to switch bottles. The upper bottle cap motor switches on
and closes the cap of the top bottle, while the lower bottle cap motor [E] switches on
and opens the cap of the lower bottle so it can start supplying toner.
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Toner Near-end, Toner End, Bottle Replacement
[B]
[A]
B070D911.WMF
[D]
[C]
B070D909.WMF
Each toner bottle [A] has an independent toner bottle motor [B]. An empty toner bottle
can be replaced during printing.
The toner near-end sensor detects toner as it falls from the toner bottle into the toner
entrance tank [C]. If the toner near end sensor [D] detects that no toner has come out
of the toner bottle, the toner bottle enters the toner near-end condition.
The toner bottle motor then rotates the toner bottle up to 20 times to try to supply toner
to the toner entrance tank. If the sensor detects toner more than 5 times, the near-end
condition is cleared. However, if the toner near end sensor fails to detect toner 5
consecutive times, 200 more copies can be made from that bottle, then the machine
declares it to be empty.
When the bottle is empty, the machine switches to the second toner bottle. The first
toner bottle cap motor closes the bottle cap and the second toner bottle cap motor
pulls out the second bottle cap. The motors operate until the first bottle inner cap
sensor does not detect the actuator and the second bottle inner cap sensor does
detect the actuator.
The second toner bottle is then rotated up to 15 times. If the near-end sensor detects
toner after 5 times, the machine can print from that bottle.
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2-55
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Meanwhile, the machine indicates that the first bottle is empty. When the user takes
out the old bottle, and puts in a new one, this is detected by the toner bottle sensor.
(ꢀ”Toner Bottle Sensors”,2-57) However, this bottle is not tested until the second
bottle is empty.
NOTE: If an empty bottle is not replaced, and the other bottle becomes empty (no
toner detected 10 consecutive times, as described above), 200 more copies
can be made. Then the machine enters the system toner end condition (both
bottles are empty), and this is indicated in the operation panel display.
When the second bottle is empty, the machine switches back to the first bottle.
The first bottle is tested now, by rotating it 15 times as usual. If this bottle is also found
to be empty, the machine enters the system toner end condition. This time, the
machine cannot print until one of the toner bottle sensors detects that a new toner
bottle has been inserted (the machine does not allow the 200 extra copies).
When both bottles are empty and a new toner bottle is placed in the toner bank, the
new toner bottle is rotated 15 times to supply toner to the toner entrance tank. If the
toner near end sensor then detects toner in the toner entrance tank, the system toner
end condition is cleared. If the toner near end sensor detects there is still no toner in
the toner entrance tank, the bottle cap motor closes the toner bottle cap. The system
toner end condition continues and printing is not possible.
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2-56
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Toner Bottle Sensors
[A]
[C]
B070D913.WMF
[D]
B070D912.WMF
[B]
[E]
[F]
B070D914.WMF
When placing a toner bottle in the toner bank, the toner bottle pushes the lock arm [A]
downwards. Then the lock arm catches the toner bottle and also pushes down lever
[B]. This causes toner bottle sensor [C] to detect that a bottle has been installed (the
actuator leaves the toner bottle sensor while the bottle is being inserted in the holder).
When replacing a toner bottle, push the toner bottle release lever [D] to release the
lock mechanism. While a toner bottle is supplying toner, the toner bottle opening rod is
pulled to the rear and the lock plate [E] is lowered by the link [F] so that the toner
bottle release lever cannot be pushed. Therefore, the toner bottle that is supplying
toner is always locked in place, and the user cannot pull out the bottle until it is empty.
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2.7.3 SUPPLYING TONER TO THE DEVELOPMENT UNIT
[H]
[B]
[I]
[G]
[A]
[D]
[F]
B070D902.WMF
[C]
[E]
B070D906.WMF
The toner bottle motor turns the toner bottle [A], causing toner to leave the bottle and
drop into the toner entrance tank [B].
NOTE: Recycled toner in the tube from the drum cleaning unit also enters the toner
entrance tank, and is mixed with fresh toner from the toner bottle.
The toner transport coil [C] in the toner transport tube transports toner to the toner
supply cylinder [D]. The toner bank motor [E] drives the toner transport coil via the
toner supply coil clutch [F].
The toner supply pump motor [G] creates the suction needed to draw the toner from
the toner supply and send it to the toner hopper [H].
The toner hopper has two air pressure release filters and an air return tube [I]
connected to the toner supply cylinder. Air returns to the toner supply cylinder from the
toner hopper through the air return tube.
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If the toner hopper sensor (in the toner hopper - ꢀToner Hopper) detects an
insufficient amount of toner in the hopper, the toner bank mechanism is started up.
If there is sufficient toner in the toner entrance tank (detected by the toner near end
sensor in the toner bank), the toner supply coil clutch turns on for 2 seconds. The
toner supply pump motor turns on for 7 seconds at the same time as the toner supply
coil clutch.
Next, if the toner hopper sensor still does not detect toner, the toner supply coil clutch
turns on for 2 seconds again until the toner hopper sensor detects toner (this is done a
maximum of 10 times). When the toner hopper sensor detects toner, the toner supply
pump motor turns off 1 second after the toner supply coil clutch turns off.
If the toner hopper sensor does not detect toner in the toner hopper after the toner
supply coil clutch has turned on 10 times, the operation panel returns SC495 (Toner
Bank Error).
The toner supply pump motor sensor (mounted on the toner supply pump motor)
monitors the operation of the pump motor. If the sensor detects that the motor does
not rotate during the toner supply process, the operation panel returns SC591 (Toner
Supply Motor Lock) and the job halts.
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2-59
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2.7.4 TONER HOPPER
Toner Supply
[G]
[E]
[A]
[B]
[C]
[F]
[D]
[G]
[F]
A294D306.WMF
When the toner supply roller clutch [A] (inside the development motor unit [B]) turns
on, the agitator [C] mixes the toner transported by the air tube [G] from the toner bank
(the toner from the toner bank is new toner mixed with recycled toner). Then it moves
the toner from front to rear and sends it to the toner supply roller. Toner is caught in
the grooves in the toner supply roller [F]. Then, as the grooves turn past the opening,
the toner falls into the development unit.
The toner supply roller clutch [A] transfers drive from the development motor to the
toner supply roller gear [D], which drives the agitator gear [E].
For details about Toner Supply Control, see Drum Unit – Toner Supply Control.
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Toner Hopper Empty Detection
[A]
[B]
A294D307.WMF
The toner hopper sensor [A] detects whether there is enough toner in the toner
hopper. The toner hopper sensor checks for toner once when the toner supply roller
clutch turns on. When there is only a small amount of toner inside the toner hopper
and pressure on the toner hopper sensor becomes low, the toner hopper sensor
outputs a pulse signal (once per copy). Then the toner bank mechanism supplies
more toner to the toner hopper, as explained in previous sections.
Spring [B] applies development bias from the developer rollers to the lower case of the
developer unit , to prevent toner from being re-attracted back to the drum.
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2.7.5 TONER RECYCLING AND WASTE TONER COLLECTION
Overview
[C]
[B]
[A]
B070D903.WMF
To recycle used toner for re-use, the toner recycling coil in the tube [A] transports the
toner collected by the drum cleaning to the toner entrance tank for recycling.
To collect waste toner that will no longer be used, the toner collection coil in the tube
[B] transports the toner collected by the transfer belt unit to the waste toner collection
bottle.
The drum motor [C] drives the toner recycling coil [A] via timing belts and gears,
whose rotation in return drives the toner collection coil [B] via gears.
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Toner Recycling
The toner recycling coil in the tube [A] transports the toner collected by the drum
[E]
[F]
[B]
[D]
[A]
B070D904.WMF
[C]
B070D906.WMF
cleaning unit to the toner entrance tank [B] for recycling. This toner is dropped into the
toner entrance tank and mixed with fresh toner from the toner bottle. The toner bank
motor [C] drives the toner transport coil via the toner supply coil clutch [D].
The new toner separation shutter mechanism (toner recycling shutter solenoid [E] and
shutter [F]) reduces the amount of paper dust in the toner. During recycling, paper
dust gradually collects in the toner, which can cause black dots to appear on copies.
At the prescribed interval, the toner separation mechanism purges all toner from the
toner supply system and replaces it with new toner, as described below.
Normally during toner recycling, the toner recycling shutter solenoid remains on and
the shutter remains open, but when the number of copies exceeds 200K, the toner
recycling shutter solenoid switches off and the shutter closes.
After the solenoid switches off, no toner recycling is done for the next 25K copies, and
all used toner is sent to the waste toner collection bottle without recycling. Toner from
the toner hopper takes about 20K copies to pass through the recycling path cleaning
and collection tubes, so during the 25K copies after the solenoid switches off, all the
toner in the toner supply path is purged from the system and replaced with fresh toner.
NOTE: The timing of this operation can be adjusted with SP2975 001, 002 (Toner
Recycle Cut Counter – ON Counter/OFF Counter). SP2975 001 determines
how often the toner is purged (default: 200k), and SP2975 002 determines
how long the purge is done for (default: 25k copies)
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2.8 PAPER FEED
2.8.1 OVERVIEW
2
3
1
4
5
6
10
7
8
1. Duplex Tray
2. Relay Roller
6. Feed Roller
7. Separation Roller
3. Upper Registration Roller 8. 3rd Tray (Universal)
4. Grip Roller
9. 2nd Tray (Universal)
10. 1st Tray (Tandem)
5. Pick-up Roller
This model has three paper tray feed stations. The 1st tray (10), the tandem feed tray,
holds 2,000 sheets of paper (1,000 sheets x 2 stacks). The tandem tray also be can
be converted to a 1,000-sheet tray for larger paper sizes with the optional A3/DLT
Feed Kit B331.
The 2nd tray (9) and 3rd trays (8) are universal trays and each can hold 500 sheets of
paper. To allow easy removal, the paper cassettes are not fastened to the trays with
screws.
All feed stations use an FRR feed system. Rotation of the pick-up roller (5) drives the
top sheet of paper to the feed (6) and separation (7) rollers. These rollers then take
over the paper drive. If the pick-up roller feeds more than one sheet, the separation
rollers rotate in the opposite direction and prevent all but the top sheet from passing
through to the registration rollers. The large grip rollers (4) feed paper from the trays in
the vertical paper path.
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2.8.2 DRIVE
7
6
5
3
2
1
9
4
8
3
2
B070D709.WMF
1. Paper Feed Motor
6. Upper Relay Clutch
7. LCT Relay Clutch
2. Paper Feed Clutches 1 to 3
3. Vertical Transport Clutches 1 to 3 8. One-way Gear
4. Lower Relay Clutch
5. Relay Motor
9. Knob
The paper feed motor (1) drives feed, pick-up, and separation rollers in trays 1, 2, and
3 via timing belts, clutches (2), and gears. The paper feed motor also drives the
vertical transport rollers and the lower relay roller. Drive is transferred to each of the
three vertical transport rollers by a vertical transport clutch (3), and to the lower relay
roller by the lower relay clutch (4).
The relay motor (5) drives the upper relay roller and LCT relay roller via gears and
clutches (6) and (7).
The 2nd vertical transport clutch has a one-way-gear (8). This prevents the clutch from
slipping when the knob (9) is turned to remove jammed paper in the paper feed tray
and vertical transport area.
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2.8.3 VERTICAL TRANSPORT
[A]
[C]
[B]
B070D617.WMFF
The vertical transport rollers [A] in each feed unit are all driven by the paper feed
motor. The vertical transport rollers and the vertical transport idle rollers [B], on the
inner and outer vertical guide plates, transport the paper up from each feed unit
towards the relay and registration rollers.
The vertical transport guides [C] can be opened to remove jammed paper in the
vertical transport area.
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2.8.4 PAPER REGISTRATION
Overview
[A]
[C]
[E]
From the LCT
[B]
[C]
B070D702.WMF
The registration sensor [A] is positioned just before the registration rollers [B].
When the paper leading edge activates the registration sensor, the registration motor
is off and the registration rollers are not turning. However, the upper relay roller (or
LCT relay roller for feed from the LCT) [C] stays on for a bit longer.
This delay allows time for the paper to press against the registration rollers and buckle
slightly to correct skew. Next, the registration motor energizes and the upper relay
clutch re-energizes at the proper time to align the paper with the image on the drum.
The registration and relay rollers feed the paper to the image transfer section.
The registration sensor is also used for paper misfeed detection, and the LCT relay
sensor [E] detects jams at the LCT roller.
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2.9 IMAGE TRANSFER AND PAPER SEPARATION
2.9.1 OVERVIEW
[B]
[A]
[F]
[C]
B070D401.WMF
[E]
[D]
The transfer belt unit consists of the following parts:
[A]: Transfer belt
A belt (length: 321 mm) with high electrical resistance which holds a high
positive electrical potential to attract toner from the drum to the paper.
Also, the electrical potential attracts the paper itself and helps the paper to
separate from the drum.
[B]: Transfer bias roller and transfer belt bias brush
Applies transfer voltage to the transfer belt.
[C]: Transfer belt lift lever (driven by a solenoid)
Lifts the transfer belt into contact with the drum.
[D]: Transfer power pack
Generates a constant transfer current.
[E]: Cleaning roller and cleaning roller cleaning blade
Removes toner remaining on the transfer belt to prevent the rear side of the
paper from getting dirty.
[F]: Transfer belt cleaning blade
Removes toner from the transfer belt. Any toner that is not removed by this
blade is removed by the cleaning roller [E].
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2.9.2 TRANSFER BELT UNIT LIFT
[C]
[E]
[D]
[A]
[E]
[B]
[F]
B070D506.WMF
The transfer belt lift solenoid [A] inside the transfer belt unit turns on to raise the
transfer belt into contact with the drum. The front lever [B] and the rear lever [C] are
connected to the solenoid by links [D], and they push up the stays [E] when the
solenoid turns on.
The support spring [F] helps the solenoid to raise the transfer belt.
The solenoid turns off after the copy job is finished.
The transfer belt must be released from the drum for the following reasons:
1. To prevent the ID sensor pattern on the drum from being rubbed off by the transfer
belt, because the transfer belt is located between the development unit and the ID
sensor.
2. To decrease the load on the bias roller cleaning blade, it is better to prevent toner
on non-image areas (for example VD, VH, ID sensor patterns developed during
process control data initial setting) from being transferred onto the transfer belt.
3. To prevent drum characteristics from being changed by remaining in contact with
the rubber belt.
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2.9.3 TRANSFER BELT CLEANING
[B]
[C]
[D]
[A]
B070D403.WMF
Some toner may adhere to the transfer belt when paper jams occur. The adhered
toner must be removed to prevent the rear side of the copy paper from getting dirty.
The cleaning blade [A] scrapes off any toner remaining on the transfer belt. This is a
counter blade system.
Even if the toner is not completely removed due to paper dust stuck on the transfer
belt cleaning blade [A], the positively charged cleaning bias roller [B] attracts the
remaining toner. The bias roller cleaning blade [C] scrapes toner off the cleaning bias
roller.
The surface of the transfer belt is coated to make it smooth and prevent the transfer
belt from flipping the cleaning blade.
The toner collection coil [D] transports toner cleaned off the transfer belt to the waste
toner collection bottle (see Toner Supply and Recycling for more on this).
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2.9.4 TONER COLLECTION
[D]
[A]
[C]
[B]
B070D505.WMF
Transfer belt drive is transmitted to the toner collection coil [A] through idle gears [B].
The toner collection coil [C] transports the collected toner to the toner recycling unit [D]
and from there it goes to the waste toner collection bottle.
See Toner Supply and Recycling for details.
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2.9.5 DRUM ANTI-CONDENSATION HEATER
[A]
B070D048.WMF
The drum anti-condensation heater [A] is located under the transfer belt unit. It turns
on when the main switch is off to prevent moisture from forming on the transfer belt.
The heater is included in the machine at the factory, but the connector is not
connected.
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2.10 FUSING
2.10.1 OVERVIEW
[E]
[D]
[A]
[G]
[F]
[C]
[B]
[H]
[I]
B070D501.WMF
After transferring the image, the copy paper enters the fusing unit. A heat and
pressure process using a hot roller [A] and a pressure roller [B] fuses the image to the
copy paper. There are three fusing lamps of different wattage [C] inside the hot roller.
They are turned on and off to maintain the target fusing temperature.
The CPU monitors the hot roller surface temperature through a thermistor [D], which is
in contact with the hot roller’s surface. A thermostat [E] protects the fusing unit from
overheating.
The fusing exit sensor [F] monitors the progress of the copy paper through the fusing
unit and acts as a mis-feed detector while the exit rollers drive the copy paper to the
inverter section.
The oil supply roller and cleaning web [G] applies a light coat of silicone oil to the hot
roller. It also removes the paper dust on the hot roller.
The hot roller and pressure roller have stripper pawls [H] to prevent wrap-around jams.
The pressure roller is cleaned by a steel cleaning roller [I]. Toner adheres to steel
more readily than to silicone rubber.
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2.10.2 OIL SUPPLY AND CLEANING
[B]
B070D504.WMF
[A]
B070D553.WMF
[E]
[D]
[C]
The oil supply and cleaning web [A] feeds the web felt soaked with silicone oil. Springs
[B] hold a roller under the web [C] against the hot roller [D].
This intermediate roller applies a light coat of silicone oil to the hot roller and removes
paper dust and toner from the hot roller.
A spring clutch inside the mechanism pulls the web to take up the slack, to prevent it
getting pulled in between the fusing rollers.
At prescribed intervals (see below), the web motor [E] switches on for 2.8 sec. to
move the oil supply and cleaning web felt.
Web Motor Run Time Intervals
B070 (90 cpm)
20.7 s
B071 (105 cpm)
17.0 s
NA
EUR/A
12.6 s
10.4 s
The interval starts when the first copy reaches the fusing exit sensor, and ends 2 sec.
after the last copy has passed this sensor. SP1902 002, 003 (Web Motor Control –
Web Motor Drive Interval, Web Motor Drive Time) can be used to adjust the motor
rotation time and rotation interval. SP1902 004 (Web Motor Control - Web Near End
Setting) is used to adjust the near end timing for the web (Default: 90% for NA, 86%
for EUR/A).
The web is 20 m long and lasts for about 600K copies for NA, or 350K copies for
EUR/A.
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[D]
[C]
[A]
[B]
[E]
B070D555.WMF
SP1902 001 displays the web consumption. When the web consumption exceeds the
value set with SP1-902-4 (Web Near End), the machine indicates web near-end on
the operation display.
The machine still operates while the actuator [A] remains above the web end sensor
[B] undetected. The actuator arm of the actuator remains in contact with the supply
roller [C] and gradually lowers as the amount of web on the supply roller grows smaller
as it is fed to the take-up roller [D] above.
When the web runs out, the actuator drops into the web end sensor at [E] and the
sensor signal to the CPU displays SC550 on the operation panel display. In this
condition, a technician must install a new oil supply and cleaning web, and then reset
SP1902 001 to 0 to clear SC550.
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SP1902 004 (Web Near End) can be adjusted to change the near-end period. The
defaults for and amount of web that remains for copying are different for NA and
EUR/A.
Near-End
Area
NA
EUR/A
Near-End
90%
Web Remaining
600K
86%
350K
The table below, provided for your reference, shows approximately how adjustment of
SP1902 002 affects the near-end and end displays on the B070 (90 cpm) or B071
(105 cpm).
Note that adjustment of SP1902 002 also affects SP1902 005 (Web Motor Control –
Web Motor Drive Interval (Low Speed)).
SP1902 002 *1
Near-End
End Display
(Sheets)
SP1902 004 *3
Display
Comments
B070
B071
Low
(Sheets) *4
Speed
Mode *2
20.7 s
15.6 s
12.1 s
10.4 s
6.9 s
12.6 s
10.8 s
7.2 s
17.0 s
12.8 s
10.0 s
8.5 s
5.7 s
10.4 s
9.0 s
25.3 s
19.0 s
14.8 s
12.7 s
8.5 s
15.4 s
13.2 s
8.8 s
90%
90%
90%
90%
90%
86%
86%
86%
600K
450K
350K
300K
200K
350K
300K
200K
670K
500K
385K
330K
220K
410K
350K
230K
NA Default
EUR/A Default
6.0 s
*1: SP1902 002 (Web Motor Control – Web Motor Drive Interval)
*2: SP1902 005 (Web Motor Control – Web Motor Drive Interval (Low Speed))
*3: SP1902 004 (Web Motor Control – Web Near End Setting)
*4: Calculated based on A4 LEF at 100% magnification.
NOTE: SP1902 003 (Web Motor Control – Web Near End Setting) not adjusted.
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2.11 PAPER EXIT/DUPLEX
2.11.1 OVERVIEW
[A]
[B]
[C]
B070D661.WMF
The printed page from the fusing unit goes either straight through to the output tray or
finisher, or downward through to the inverter or duplex unit, depending on the position
of the junction gate [A].
If the page is fed out directly, it arrives on the tray face-up. If the user selected face-
down output, the page goes to the inverter [B] before being fed out.
If the user selects duplex mode, the page is directed to the duplex tray [C] after
inverting, and back to the machine for printing the second side.
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2.11.2 INVERTER
Feed-in and Jogging
[A]
[D]
B070D802.WMF
[C]
[B]
B070D803.WMF
The inverter feed roller [A] feeds paper to the jogger section. After the trailing edge of
the paper passes through the inverter feed roller, the jogger fences [B] move to square
the paper. This happens every page.
The jogger motor (a stepper motor) [C] moves the jogger fences [B] inward or
outward.
When the main switch is turned on, the jogger motor places the jogger fences at the
home position, which is determined by monitoring the signal from the jogger home
position sensor [D].
When the start key is pressed, the jogger motor positions the jogger fences 15 mm
away from the selected paper size to wait for the paper.
When the paper is delivered to the jogger fences, the jogger fences move inward to
square the paper. After this, the jogger fences move back to the previous position (15
mm away from the paper).
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Feed-out
[D]
[B]
[A]
B070D804.WMF
[C]
[E] [B]
[F]
[C]
B070D805.WMF
After jogging, the reverse roller solenoid [A] energizes to push down the reverse
trigger roller [B]. The reverse roller [C] turns counterclockwise continuously, so the
paper starts to reverse when the reverse trigger roller is down and catches the paper
between the rollers. The inverter guide plate solenoid [D] energizes to lower the
inverter guide plate [E], so that the paper is guided by the inverter guide plate. The
next sheet waits at the inverter guide plate.
The paper is fed from the reverse roller to the inverter exit roller [F]. After the paper
starts to be fed by the inverter exit roller, the reverse trigger roller and inverter guide
plate move back up.
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2.11.3 DUPLEX TRAY FEED MECHANISM
[A]
[B]
[C]
[D]
[E]
[F]
B070D806.WMF
In duplex mode, after the paper leaves the inverter, the duplex inverter gate solenoid
[A] switches the junction gate [B] to direct the paper to the duplex tray. The paper is
fed through the duplex tray by duplex transport rollers 1 [C], 2 [D], 3 [E], and the
duplex feed roller [F].
If duplex mode is not selected, the solenoid does not switch the junction gate, and the
paper goes to the output tray or finisher face down.
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2.11.4 BASIC DUPLEX FEED OPERATION
To improve the productivity of duplex copying, a non-stacking style duplex mechanism
is adopted. This type of mechanism allows more than one page to be processed at
once, in a process called ‘interleaving’. Examples of this are given below.
For paper lengths up to A4/Letter LEF, the top duplex speed is possible, with the
duplex unit processing four sheets of copy paper at the same time.
For paper longer than this, the duplex tray can process two sheets of copy paper at
once.
For a single-set duplex copy job, the duplex unit stores only one sheet of copy paper.
For a multi-set duplex job, the job is stored first, then the first set is made using
interleaving.
Length up to A4/Letter LEF
The duplex unit can process four sheets of copy paper
Example: A 14-page copy. The large numbers in the illustration show the order of
pages. The small numbers in circles show the order of sheets of copy paper
(if shaded, this indicates the second side).
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
1
3
6
5
7
8
2
9
4
2
1
2
3
4
1
5
11
13
10
12
14
6
3
7
4
5
6
7
B070D550.WMF
1. The first 4 sheets are fed and printed.
1) 1st sheet printed (1st page)
2) 2nd sheet printed (3rd page)
3) 3rd sheet printed (5th page)
4) 4th sheet printed (7th page)
B070D807.WMF
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2. The back of the 1st sheet is printed (2nd
page).
3. The 2nd, 3rd, 4th sheets (3rd, 5th, and
7th pages) go into the duplex unit.
4. The 5th sheet (9th page) is fed in.
B070D808.WMF
5. The 5th sheet is printed (9th page).
6. The 1st sheet is fed out (1st and 2nd
pages printed).
B070D809.WMF
7. The 5th sheet (9th page) is directed to the
duplex unit.
8. The 6th sheet (11th page) is fed.
9. The back of the 2nd sheet is printed (4th
page).
B070D810.WMF
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10. The 2nd sheet is fed out (3rd and 4th
pages printed).
11. The 6th sheet is printed (11th page) and
directed to the duplex unit.
12. The back of the 3rd sheet (6th page) is
printed.
13. The 7th sheet is fed and printed (13th
page).
B070D811.WMF
14. The back of the 4th sheet is printed (8th
page) and fed out (7th and 8th page).
15. The back of the 5th sheet is printed (10th page) and fed out (9th and 10th pages).
16. The back of the 6th sheet is printed (12th page) and fed out (11th and 12th
pages).
17. The back of the 7th sheet is printed and fed out (13th and 14th pages).
Longer than A4/Letter LEF
The duplex unit can process two sheets of copy paper
Example: 8 pages. The number [A] in the illustration shows the order of pages. The
number [B] in the illustration shows the order of sheets of copy paper (if
shaded, this indicates the second side).
[A]
⇒
⇒
⇒
⇒
⇒
⇒
⇒
1
3
2
5
4
7
6
8
4
1
2
1
3
2
4
3
B070D551.WMF
[B]
1. The first 2 sheets are fed and printed.
1) 1st sheet printed (1st page)
2) 2nd sheet printed (3rd page)
B070D857.WMF
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2. The first 2 sheets go into the duplex
unit.
B070D858.WMF
3. The back of the 1st sheet (2nd page) is
printed.
4. The 3rd sheet (5th page) is fed and
printed.
B070D859.WMF
5. The 1st sheet (1st and 2nd pages) is
fed out.
6. The back of the 2nd sheet (4th page)
is printed.
7. The 4th sheet (7th page) is fed and
printed.
B070D860.WMFF
8. The 2nd sheet (3rd and 4th pages) is
fed out.
9. The back of the 3rd sheet (6th page)
is printed.
10. The 3rd sheet (5th and 6th pages
printed) is fed out.
11. The back of the 4th sheet (8th page)
is printed.
B070D861.WMF
12. The 4th sheet (7th and 8th pages) is
fed out.
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2.12 ENERGY CONSERVATION MODES
2.12.1 OVERVIEW
Operation
Stand-by Mode
Auto Off Mode
Energy
Saver Key
Fusing lamp off.
Energy Saver LED Off
5V Off
Auto Off
Timer
PC Signal
Night Mode
System 5V Off
+5VE On
Panel off
Timer
Energy Saver Mode
Energy
Fusing lamp to low temp.
Energy Saver LED On
System 5V On
Saver Key
Within 3s
to return
Printer ready
conditons
PC signal
Selected by
UP mode
Within 30s
to return
Energy Saver
Timer
Night Stand-by
Mode
Operation
Low Power Mode
Switch Off
System 5V On
Operation
Switch Off
Operation
Switch Off
Fusing lamp to low temp.
Energy Saver LED On
System 5V On
Operation
Operation
Operation
B070D530.WMF
When the machine is not used, the energy saver function reduces power consumption
by lowering the fusing temperature.
This machine has four types of energy saver mode as follows.
1) Energy saver mode (called ‘panel off mode’ in the operation manual)
2) Low power mode (called ‘energy saver mode’ in the operation manual)
3) Auto off mode (copier configuration only)
4) Night mode (copier/printer/scanner configuration only)
These modes are controlled by the following User Tools:
• Panel off timer
• Energy saver timer
• Auto off timer
• Auto off disabling
The way that the machine operates depends on the combination of installed
equipment (copier only, or whether a printer/scanner is installed).
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2.12.2 ENERGY SAVER MODE
Entering the energy saver mode
The machine enters energy saver mode when one of the following is done.
• The Energy Saver Key is held down for a second.
• The panel off timer runs out after the last job (User Tools - System Settings - Timer
Setting - Panel Off Timer: default setting is 60 s).
What happens in energy saver mode
When the machine enters energy saver mode, the fusing lamp drops to a certain
temperature and the operation panel indicators are turned off except for the Energy
Saver LED and the Power LED.
If the CPU receives the image print out command from an application (e. g. to print
data from a PC), the fusing temperature rises to print the data. However, the operation
indicators stay off.
Return to stand-by mode
If one of the following is done, the machine returns to stand-by mode:
• The Energy Saver Mode key is pressed
• An original is placed in the ADF
• The ADF is lifted
• A sheet of paper is placed in the by-pass feed table
Operation
Switch
Energy Saver
LED
Approx.
Recovery Time
Fusing Temp.
System +5V
168°C (B070/90 cpm)
173°C (B071/105 cpm)
On
On
3 s
On
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2.12.3 LOW POWER MODE
Entering the low power mode
The machine enters low power mode when:
The energy saver timer runs out after the last job.
(User Tools - System Settings - Timer Setting - Energy Saver Timer: default setting is
15 min)
What happens in low power mode
The fusing lamp drops to the prescribed temperature, as shown in the table below (the
temperature drops more than that in energy saver mode). The other conditions are the
same as for the energy saver mode.
Return to stand-by mode
The machine returns to standby mode in the same way as from the energy saver
mode.
Operation
Switch
Energy Saver
LED
Approx.
Recovery Time
Fusing Temp.
System +5V
143 °C (B070/90 cpm)
150°C (B071/105 cpm)
On
On
40 s
On
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2.12.4 AUTO OFF MODE
Auto off mode is used only if no optional printer/scanner unit is installed.
Entering auto off mode
The machine enters auto off mode when one of the following is done.
• The auto off timer runs out after the last job (User Tools – System Settings – Timer
Setting – Auto Off Timer: default setting is 90 min)
• The operation switch is pressed to turn the power off
What happens in auto off mode
When the machine enters auto off mode, the fusing lamps and all dc supplies except
+5VE/12VE (+5V/12V for energy saver mode) turn off.
Returning to stand-by mode
The machine returns to stand-by mode when the main operation switch is pressed.
Approx.
Recovery
Time
Operation
Switch
Energy
Saver LED
System
+5V
Fusing Temp.
Note
Room Temp.
(Fusing lamp off)
Only +5VE/+12VE is
supplied to the
Off
Off
360 s
Off
Controller, MB, HDD.
Disabling auto off mode
If the user wishes to disable auto off mode, use the following user tool: User Tools –
System Settings – AOF (change the setting to ‘OFF’).
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2.12.5 NIGHT MODE
This is used instead of auto off mode when an optional scanner/printer unit is installed.
There are two types of night mode: Night Stand-by Mode and Night Mode. The
difference between night stand-by mode and night mode is the machine’s condition
when the machine enters auto off mode.
Entering night stand-by and night modes
The machine enters the night stand-by mode and night modes when one of the
following is done.
• The operation switch is pressed to turn the power off
• The auto off timer runs out (the operation switch is then turned off, but the main
power switch stays on)
If the machine is in one or more of the following conditions, the machine enters night
stand-by mode. If not, the machine enters night mode.
• Error or SC condition
• Image data is stored in the memory
• An original is in the ADF
• The ADF is open
• Paper is left in the duplex unit or staple tray
What happens in night stand-by and night modes
When the machine enters either of these modes, the fusing lamp and operation switch
turn off, and only the main power LED is lit.
Night stand-by mode
The system +5V and +24 V are supplied to all components.
Night mode
The system +5V supply is also turned off. However, +5VE (+5V for energy saver
mode) is still activated. When the machine detects a signal from the PC, the machine
goes back to night stand-by mode and the system +5V and +24V supplies are
activated. Then the machine receives the incoming message and prints it.
Returning to stand-by mode
The machine returns to stand-by mode when the operation switch is pressed.
Energy
Saver
LED
Operation
Switch
System
+5V
Mode
Fusing Temp.
Note
Night stand-
by mode
Room Temp.
(Fusing lamp off)
Off
Off
Off
On
Off
Only +5VE/+12VE is
supplied to the
controller, MB, HDD.
Room Temp.
(Fusing lamp off)
Night mode
Off
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SECTION 3
SERVICE TABLES
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3. SERVICE TABLES
3.1 SERVICE PROGRAM MODE OPERATION
The service program (SP) mode is used to check electrical data, change modes,
and adjust values.
ꢀCAUTION
Never turn off the main power switch when the power LED is lit or flashing.
To avoid damaging the hard disk or memory, press the operation power
switch to switch the power off, wait for the power LED to go off, and then
switch the main power switch off.
To Enter and Exit the SP Mode
1. Press Clear Modes key J.
2. On the operation panel keypad, press ꢁꢂꢃ.
3. Hold down Clear key
more than 3 seconds.
The Copy SP or PM Counter items are displayed. If the printer or
scanner/printer option is installed, the Printer SP and Scanner SP items are
also available.
4. Press Copy SP.
5. To exit the SP mode, just press Exit in the upper right corner of the SP mode
screen.
To Switch to the Copy Window for Test Printing
1. In the SP mode display, press Copy Window to switch to the copy operation
screen when you need to select paper for a test print.
2. Use the copy window (copier mode) to select the appropriate settings (paper
size, etc.) for the test print.
3. Press Start key C to execute the test print.
4. Press SP Mode (highlighted) to return to the SP mode screen and repeat from
step 1.
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Using the SP Mode
SP command numbers can be entered directly (if you know the entire number) or
the command can be selected from the menus.
Direct Entry
If you know all seven digits of the SP code, enter the seven numbers and press
Enter key ꢄ.
However, if you do not know all the numbers, enter only the first four numbers of
the seven-digit SP and press Enter key ꢄ. The display goes immediately to the
first SP of that group. Then you can use the buttons to browse to the desired
selection.
Button Selection Entry
1. Refer to the SP Mode Tables at the end of this section to find the SP that you
want to adjust.
2. Press the Group number on the left side SP Mode window that contains the SP
that you want to adjust.
3. Use the scrolling buttons in the center of the SP mode window to display the
SP number that you want to open, then, press that number to expand the list.
4. Use the center touch-panel buttons to scroll to the number and title of the item
that you want to set, and press Enter key ꢄ. The small entry box on the right
is activated and displays the default or the current setting below.
5. To enter a setting
• Press ꢀ key to enter a minus sign. Then use the keypad to enter the
appropriate number. The number you enter will write over the previous
setting.
• Press ꢄ to enter the setting. (If you enter a number that is out of range, the
key press is ignored.)
• Press Clear key
to cancel the data.
6. If you need to perform a test print, press Copy Window to open the copy
window and select the settings for the test print. Press Start C key.
7. Press SP Mode (highlighted) in the copy window to return to the SP mode
display.
8. When you are finished, press Exit twice to return to the copy window.
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SP Mode Button Summary
Here is a short summary of the touch-panel buttons.
(1)
(2)
(3)
(4)
(5)
14APR 2002 03:25
Exit
X-XXX-XXX
Open All
Close All
Copy Window
SP Direct
SP Mode (Service)
Group
Page
Line
SP1XXX
COPY: SP1-001-001
SP2XXX
SP3XXX
SP4XXX
SP5XXX
SP6XXX
SP7XXX
SP8XXX
(6)
(7)
(8)
(9)
21
Line
Page
Group
Initial
0
(10)
Prev Page
Next Page
B064S500.WMF
Open All.
Opens all SP groups and sublevels.
(1)
(2)
Close All.
Closes all open groups and sublevels and restores the initial SP mode display.
Copy Window.
(3)
(4)
(5)
(6)
Opens the copy window (copy mode) so you can make test copies. To return to the
SP mode screen, press SP Mode (highlighted) in the copy window.
SP Direct.
Enter the SP code directly with the number keys if you know the SP number, then
press Enter key ꢄ. (SP Direct must be highlighted before you can enter the
number. Just press SP Direct if it is not highlighted.)
Exit.
Press twice to leave the SP mode and return to the copy window to resume normal
operation.
SPnxxx.
Press any group number to open a list of SP codes and titles for that group. For
example, to open the SP code list for SP1-nnn, press SP1XXX. If an SP has
sublevels, it is marked with a right pointing triangle.
Group.
(7)
(8)
Press to scroll the display to the previous or next group.
Page.
Press to scroll to the previous or next display in segments the size of the screen
display (page).
Line.
(9)
Press to scroll the display to the previous or next line, line by line.
Prev Page or Next Page.
Press to move the highlight on the left to the previous or next selection in the list.
(10)
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3.2 SERVICE PROGRAM MODE TABLES
NOTE: The Service Program Mode is for use only by customer engineers so that they can
properly maintain product quality. If this mode is used by anyone other than a customer
engineer for any reason, data might be deleted or settings might be changed. In such a
case image quality can no longer be guaranteed.
Service Table Key
Notation
[range / default /
step]
What it means
[–9~+9 / +3.0 / 0.1 mm]
The default setting +3.0 can be adjusted in 0.1mm steps in the
range ±9.
Italics
*
Comments added for reference.
An asterisk marks the SP’s that are reset to their factory default
settings after an NVRAM reset.
DFU
Japan only
SEF
Denotes “Design or Factory Use”. Do not change this value.
The feature or item is for Japan only. Do not change this value.
Short Edge Feed
LEF
Long Edge Feed
NOTE: The intent of this document is to not detail the Service Programs,
please use the SM for that purpose.
3.2.1 COPIER SERVICE PROGRAM MODE TABLES
SP1-nnn Feed
SP
Number/Name
Function/[Setting]
1001 Leading Edge Registration
Adjusts the printing leading edge
registration for feeding from the trays and
duplex tray using the trimming area
pattern (SP2-902-3, No.15).]
Use the “• / *key to enter the minus ( –)
before entering the value.
The specification is 4± 2 mm. (ꢀ3-17)
B070: [-9.0~+9.0 /-2.6 / 0.1 mm]
B071: [-9.0~+9.0 / -4.0 / 0.1 mm]
B070: [-9.0~+9.0 / -0.3/ 0.1 mm]
B071: [-9.0~+9.0 / -0.4 / 0.1 mm])
B070: [-9.0~+9.0 / -3.0 / 0.1 mm]
B071: [-9.0~+9.0 / -2.0 / 0.1 mm]
[-9.0~+9.0 / 0 / 0.1 mm]
001
002
003
004
Copier/LCT Paper Tray
Duplex Tray
Copier//LCT Paper Tray (Low
Speed)
Duplex Tray (Low Speed)
1002 Side-to-side Registration
Adjusts the printing side-to-side
registration from the 1st paper feed
station using the trimming area pattern
(SP2-902-3, No.15).
Use the “• / *key to enter the minus ( –)
before entering the value.
Specification: 0 ± 2.0 mm. (ꢀ3-17)
[-9.0~+9.0 / -0.1 / 0.1 mm]
[-9.0~+9.0 / -0.6/ 0.1 mm]
[-9.0~+9.0 / -0.3 / 0.1 mm]
[-9.0~+9.0 / -0.8 / 0.1 mm]
001
002
003
004
1st Tray (Copier Tandem Tray)
2nd Tray (Copier)
3rd Tray (Copier)
4th Tray (LCT Tray 1)
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3.3 USER PROGRAM MODE
3.3.1 ENTERING AND EXITING USER PROGRAM MODE
The user program (UP) mode is accessed by users, and by sales and service staff.
UP mode is used to input the copier’s default settings.
Press the User Tools/Counter button (Item20), then select the UP mode program.
After finishing the UP mode program, touch “Exit” key to exit UP mode.
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1. Press the user tools key, then press the key corresponding to the set of user
tools you wish to use.
2. System Settings:
a) Print Priority: If set to Interleave, the machine may start printing pages from another job
after the number of pages selected with ‘Interleave Print’.
b) Interleave Print: See above
c) Function Reset Timer: Also controlled by SP 5913. This is the length of time the
machine waits before changing modes when using the multi-access function. The
default is 3 seconds.
d) Output Tray - Printer: The driver settings will take priority if different from the user tool
setting.
e) System Settings - Key Operator Functions
f) User Code Management: Determines which modes user codes are necessary for
(copier, document server, scanner, printer)
g) External Change Unit Management: Determines which modes key operator code is
necessary for (copier, document server, scanner, printer)
h) Address Book Management: This allows you to administer the user codes. These user
codes are also used for Document Solutions software. E-mail addresses can also be
programmed with the user codes, and scanned documents can be sent by e-mail. E-mail
addresses can also be registered in groups so that a document can be sent to more
than one person at the same time easily.
i) For printer mode, user codes sent from the printer driver can be automatically registered
in the machine as user codes if you set User Code Management (above) for printer
mode to Auto Program.
j) Key Operator’s e-mail Address: This can be stored for reference in times of confusion,
tumult, and chaos.
k) AOF: This enables and disables auto off mode. It is not explained in the operation
manual. This is because, to comply with Energy Star, it should not be easy to disable
this feature.
3. Printer Features, Scanner Features: The printer and scanner options must be
installed.
B070/B071
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SECTION 4
INSTALLATION
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4. INSTALLATION
4.1 INSTALLATION REQUIREMENTS
4.1.1 ENVIRONMENT
10°C to 32°C (50°F to 89.6°F)
15% to 80% RH
1. Temperature Range:
2. Humidity Range:
%Rh
90
80
70
60
50
40
30
20
10
27°C (80.6°F) 80%
32°C (89.6°F) 54%
Operation
Range
32°C (89.6°F) 15%
Temperature
10
20
30
10°C (50°F) 15%
B070I900.WMF
Less than 1,500 lux (do not expose to direct sunlight
or strong light)
3. Ambient Illumination:
Room air should turn over at least 3 times per hour
Less than 0.075 mg/m3
4. Ventilation:
5. Ambient Dust:
6. If the place of installation is air-conditioned or heated, do not place the machine
where it will be:
1) Subjected to sudden temperature changes
2) Directly exposed to cool air from an air-conditioner
3) Directly exposed to heat from a heater
7. Do not place the machine where it will be exposed to corrosive gases.
8. Do not install the machine at any location over 2,000 m (6,500 feet) above sea
level.
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9. Place the copier on a strong and level base.
10. Do not place the machine where it may be subjected to strong vibrations.
11. Do not connect the machine to a power source shared with another electrical
appliance.
12. The machine can generate an electrical field which could interfere with radio or
television reception.
4.1.2 MACHINE LEVEL
Within 5 mm (0.2") of level
Within 5 mm (0.2") of level
1. Front to back:
2. Right to left:
NOTE: The machine legs may be raised or lowered in order to level the
machine. Set a carpenter’s level on the exposure glass.
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4-2
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4.1.3 MINIMUM SPACE REQUIREMENTS
Place the copier near the power source, providing clearance as shown below. The
same amount of clearance is necessary when optional equipment is installed.
Copier + Finisher + LCT + By-pass Tray
200 mm (8")
400 mm (16")
30 mm (2")
555 mm (22")
B070I410.WMF
Copier + Finisher
200 mm (8")
30 mm (2")
400 mm (16")
B070I023.WMF
555 mm (22")
NOTE: The controller box door on the back of the machine swings open and can
be removed. Door removal is required only if the machine cannot pass
through a narrow door.
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4.1.4 DIMENSIONS
Side View
Unit: mm/inch
898 mm (36")
806 mm (32")
1202 mm (48")
90 mm (3.5")
180 mm (7")
540 mm (22")
B070I411.WMF
Top View
858.5 mm (34")
730 mm (29")
B070I412.WMF
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4-4
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4.1.5 POWER REQUIREMENTS
ꢀCAUTION
1. Make sure that the wall outlet is near the main machine and easily
accessible. Make sure the plug is firmly inserted in the outlet.
2. Avoid multi-wiring.
3. Be sure to ground the machine.
4. Never set anything on the power cord.
Input voltage level:
North America:
208 to 240 V, 60 Hz: More than 20 A
Europe/Asia:
220 ~240 V, 50/60 Hz: More than 16 A
NEMA 6-20R
Note: For USA installations, standard 220V (+/-10%) wall voltage is acceptable.
ꢀCAUTION
Never turn off the main power switch when the power LED is lit or flashing.
To avoid damaging the hard disk or memory, press the operation power
switch to switch the power off, wait for the power LED to go off, and then
switch the main power switch off.
The Main Power LED (ꢀ) lights or flashes at the following times:
• While the platen cover or ADF is open
• While the main machine is communicating with the network server
• While the machine is accessing the hard disk or memory when reading or
writing data.
There are two power switches on the machine:
• Main Power Switch.
Located on the front left corner of the machine and covered by a plastic cover.
This switch should always remain on unless the machine is being serviced.
• Operation Power Switch.
Located on the right side of the operation panel. This is the switch normally used
by the customer to power the machine on and off.
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4.2 COPIER (B070/B071)
4.2.1 ACCESSORIES
1
2
3
4
5
10
11
9
6
8
7
12
13 14
15
16
17
18
19
20
B070I001.WMF
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Check the quantity and condition of the accessories in the box against the following
list:
Description
Q'ty
1. Operation Panel..................................................................... 1
2. Lower Cover - Operation Unit Holder..................................... 1
3. Upper Cover - Operation Unit Holder..................................... 1
4. Operating Instruction Holder.................................................. 1
5. Right Arm Cover .................................................................... 1
6. Operation Unit Arm................................................................ 1
7. Leveling Shoes ...................................................................... 4
8. Optics Dust Filter ................................................................... 1
9. Dust Filter .............................................................................. 1
10. Operation Panel Unit Arm...................................................... 1
11. Paper Size Decals ................................................................. 1
12. Metal Cable Clamp ................................................................ 1
13. Tapping Screw - M4 x 12....................................................... 2
14. Philips Pan Head Screw - M4 x 6 .......................................... 1
15. Tapping Screw - M4 x 8......................................................... 25
16. Nylon Harness Clamp............................................................ 1
17. ADF Exit Tray ........................................................................ 1
18. Paper Size Decals ................................................................. 1
19. Paper Loading Decals ........................................................... 1
20. Toner Hopper Drive Gear (White).......................................... 1
Model Name Plate (-10, -15, -22 machines) – not shown............ 1
Operating Instructions – not shown ............................................. 1
PTM
4-7
B070/B071
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SECTION 5
LARGE CAPACITY TRAY
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5. OVERALL MACHINE INFORMATION
5.1 SPECIFICATIONS
Paper Weight
Tray 4, 5
Tray 6
52 to 216 g/m2
52 to 216 g/m2
Paper Size
A4 LEF, B5 LEF, 81/2"x11" LEF, A5,
51/2"x81/2"
Tray 4,5,6
Tray Capacity:
Tab Sheet:
Tray 4, 5
Tray 6
1,000 sheets (Thick Paper 0.11 mm)
2,550 sheets (Thick Paper 0.11 mm)
Feed possible from Tray 4 or Tray 5. Requires
installation of tab sheet fence.
Note: Only A4 LEF, 81/2" x 11" LEF tab sheets can be
fed.
Paper Feed System:
FRR
Remaining Paper Detection: 5-Step including Near-End for Trays 4, 5, 6
Power Source:
Power Consumption:
Weight:
24 Vdc, 5 Vdc (from copier)
55 W
Less than 82 kg (180.4 lb.)
540 mm x 730 mm x 980 mm
(21.3" x 28.7" x 38.6")
Size (W x D x H):
PTM
5-1
B070/B071
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5.2 OVERALL MECHANICAL INFORMATION
5.2.1 MECHANICAL COMPONENT LAYOUT
15
1
2
14
13
3
4
12
11
5
10
9
8
6
7
B511V101.WMF
1. Paper Feed Sensor
2. Paper End Sensor
3. Separation Solenoid
4. Paper Tray
9. Paper Feed Roller
10. Grip Roller
11. Relay Roller
12. Relay Sensor
5. Paper Height Sensors
6. Tray Drive Belt
7. Pick-up Roller
13. Feed Slot (Bypass Tray)
14. Pick-up Solenoid
15. Lift Sensor
8. Separation Roller
B070/B071
5-2
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5.3 ELECTRICAL COMPONENT DESCRIPTIONS
Symbol
Clutches
MC1
MC2
MC3
MC4
MC5
MC6
MC7
Motors
M1
Name
Function
Transport
Drives the transport rollers in the LCT.
Drives the paper feed roller in the 1st tray.
Drives the grip roller in the 1st tray.
Drives the paper feed roller in the 2nd tray.
Drives the grip roller in the 2nd tray.
Drives the paper feed roller in the 3rd tray.
Drives the grip roller in the 3rd tray
1st Paper Feed
1st Grip
2nd Paper Feed
2nd Grip
3rd Paper Feed
3rd Grip
LCT
Drives all rollers in the LCT.
M2
M3
M4
1st Lift
2nd Lift
3rd Lift
Drives the 1st tray up and down.
Drives the 2nd tray up and down.
Drives the 3rd tray up and down.
PCB
Controls the LCT and communicates with the
copier.
PCB1
LCT Control Board
Sensors
SN1
1st Paper Height 1
1st Paper Height 2
1st Paper Height 3
1st Paper Height 4
2nd Paper Height 1
2nd Paper Height 2
2nd Paper Height 3
2nd Paper Height 4
3rd Paper Height 1
3rd Paper Height 2
3rd Paper Height 3
3rd Paper Height 4
Detects the paper height in the 1st tray.
Detects the paper height in the 1st tray.
Detects the paper height in the 1st tray.
Detects the paper height in the 1st tray.
Detects the paper height in the 2nd tray.
Detects the paper height in the 2nd tray.
Detects the paper height in the 2nd tray.
Detects the paper height in the 2nd tray.
Detects the paper height in the 3rd tray.
Detects the paper height in the 3rd tray.
Detects the paper height in the 3rd tray.
Detects the paper height in the 3rd tray.
Checks for the presence of paper (misfeeds)
at the LCT exit.
Detects the copy paper coming to the 1st
paper feed roller and checks for misfeeds.
Informs the copier when the paper in the 1st
tray has run out.
Detects when the paper in the 1st tray is at
the correct paper feed height.
SN2
SN3
SN4
SN5
SN6
SN7
SN8
SN9
SN10
SN11
SN12
SN13
SN14
SN15
SN16
SN17
SN18
SN19
SN20
Exit
1st Paper Feed
1st Paper End
1st Lift
Detects the copy paper coming to the 2nd
paper feed roller and checks for misfeeds.
Informs the copier when the paper in the 2nd
tray has run out.
Detects when the paper in the 2nd tray is at
the correct paper feed height.
2nd Paper Feed
2nd Paper End
2nd Lift
Detects the copy paper coming to the 3rd
paper feed roller and checks for misfeeds.
3rd Paper Feed
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5-3
B070/B071
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Symbol
Name
3rd Paper End
Function
Informs the copier when the paper in the 3rd
tray has run out.
SN21
Detects when the paper in the 3rd tray is at
the correct paper feed height.
SN22
3rd Lift
Solenoid
s
Controls up-down movement of the
separation roller in the 1st tray.
Controls up-down movement of the
separation roller in the 2nd tray.
Controls up-down movement of the
separation roller in the 3rd tray.
Controls up-down movement of the pick-up
roller in the 1st tray.
SOL1
SOL2
SOL3
SOL4
SOL5
1st Separation
2nd Separation
3rd Separation
1st Pick-up
Controls up-down movement of the pick-up
roller in the 2nd tray.
2nd Pick-up
Controls up-down movement of the pick-up
roller in the 3rd tray.
SOL6
Switches
SW1
3rd Pick-up
Detects whether the tray cover is opened or
not.
Front Door Safety
1st Paper Size
2nd Paper Size
Detects the paper size in the 1st tray, and
whether the 1st tray is in the machine.
Detects the paper size in the 2nd tray, and
whether the 2nd tray is in the machine.
Detects whether the 3rd tray is in the
machine. The paper size must be input with a
user tool.
SW2
SW3
SW4
3rd Paper Size
B070/B071
5-4
PTM
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5.4 DRIVE LAYOUT
14
13
12
11
1
2
3
10
9
8
2
4
7
5
6
B511V102.WMF
1. Main Drive Belt
2. Tray Lift Motors
3. LCT Motor
8. Paper Feed Roller
9. Grip Roller
10. Transport Rollers
4. Tray Drive Shaft
5. Pick-up Roller
6. Tray Drive Belt
7. Separation Roller
11. Transport Roller Drive Belt
12. Grip Roller Clutch
13. Paper Feed Clutch
14. Transport Clutch
PTM
5-5
B070/B071
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5.5 DETAILED DESCRIPTIONS
5.5.1 PAPER FEED
[A]
[D]
[C]
[B]
B511D113.WMF
This LCT has three paper tray feed stations.
The upper and middle trays can each hold 1,000 sheets of paper. The lower tray
can hold 2,550 sheets of paper.
All feed stations use an FRR paper feed system (paper feed roller [A], separation
roller [B], pick-up roller [C]), and those rollers are driven by the LCT motor via the
paper feed clutch [D].
B070/B071
5-6
PTM
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5.5.2 PICK-UP AND FEED
Overview
[H]
[F]
[A]
[G]
[B]
[D]
[E]
[C]
B511D105.WMF
Drive from the LCT motor is transmitted to the gear [A] in the paper feed unit via
the timing belt [B].
Then the gear [A] transmits the drive to the pick-up [C], paper feed [D], and
separation [E] rollers via gears and the paper feed clutch [F].
The gear [A] also transmits the drive to the grip roller [G] via gears and the grip
roller clutch [H].
PTM
5-7
B070/B071
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5.5.3 PICK-UP AND FEED
[I]
[D]
[C]
[G]
[H]
[A]
[E]
[B]
[F]
B511D105.WMF
When a paper feed station is not selected, its separation roller solenoid [A] is de-
activated and the separation roller [B] can turn freely.
When the paper feed station is selected and the Start key is pressed, the feed
clutch [C], separation roller solenoid [A], and pick-up solenoid [D] turn on.
When the feed clutch [C] actuates, it drives the feed roller [E], and turns the pick-up
roller [F] because it is linked to the feed roller by an idle gear [G].
When the separation roller solenoid [A] turns on, the separation roller [B] contacts
the paper feed roller [E] and turns with the feed roller, unless more than one sheet
of paper is fed. The three trays of the LCT unit use the standard FRR mechanism.
ꢀꢀ Handling Paper> Paper Feed Methods> Forward and Reverse Roller
(FRR)
When the pick-up solenoid [D] actuates, the pick-up roller [F] lowers until it contacts
the top sheet of the paper stack and then sends it to the paper feed and separation
roller.
When the paper feed sensor [H] detects the leading edge of the paper, the pick-up
solenoid de-actuates and lifts the pick-up roller [F], and the grip roller clutch [I]
actuates and feeds the paper out of the tray.
B070/B071
5-8
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5.5.4 SEPARATION ROLLER RELEASE
[B]
[C]
[A]
B511D104.WMF
The separation roller [A] is normally away from the feed roller [B]. When the paper
feed station is selected, the separation roller solenoid [C] contacts the separation
roller with the feed roller as explained on the previous two pages.
This contact/release mechanism has the following three advantages:
1. When the LCT motor turns on, all the separation rollers in the three feed
stations rotate. If the separation roller is away from the feed roller, it reduces
the load on the paper feed motor and drive mechanism, and it also reduces
wear to the rubber surface of the separation roller caused by friction between
the separation roller and the feed roller.
2. After paper feed is completed, paper sometimes remains between the feed and
separation rollers. If the feed tray is removed at this time, this paper might be
torn. When the separation roller is away from the feed roller, the remaining
paper can be removed from between the rollers.
3. When paper misfeeds occur around this area, the user can easily pull out the
jammed paper between the feed and the separation rollers if the separation
roller is away from the feed roller.
After paper feed, the paper feed clutch tuns off, but the LCT motor still turns the
separation roller [A] in reverse. The separation roller, still contacting the feed roller,
turns the feed roller in reverse for 100 ms. Then the separation solenoid turns off.
PTM
5-9
B070/B071
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5.6 PAPER LIFT
5.6.1 TRAY DETECTION
When a tray is set in the machine, the tray detection method used depends on the
tray:
• The upper tray and middle tray are detected when any one of the paper size
switch signals is low.
• The lower tray is detected when the switch 1 signal of the paper size switch is
low.
[F]
[E]
[E]
[J]
[I]
[H]
[C]
[D]
[G]
[A]
[B]
B511D106.WMF
B511D109.WMF
5.6.2 LIFT MECHANISM
When the machine detects that the paper tray is set in the machine, the tray lift
motor [A] rotates and the coupling gear [B] on the tray lift motor engages the pin [C]
of the lift drive shaft [D]. The tray drive belts [E] are connected to the tray bottom
plate [F] and are driven by the tray lift motor via the lift drive shaft [D] and tray drive
pulleys [G]. When the lift motor turns counterclockwise, the tray bottom plate [F]
moves up. The tray goes up until the top of the paper stack pushes up the pick-up
roller and the lift sensor in the feed unit is de-activated.
When the actuator [H] on the rear end of the bottom plate activates the paper
height sensors [I], the remaining paper capacity is detected.
When pulling out the tray, the coupling gear [B] separates from the pin [C], so that
the tray bottom plate moves downward. In the bottom tray, the damper [J] lets the
tray bottom plate drop slowly.
B070/B071
5-10
PTM
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5.6.3 LIFT SENSOR
[A]
[E]
[C]
[D]
[B]
B511D108.WMF
When the lift motor turns on, the pick-up solenoid [A] activates to lower the pick-up
roller [B]. When the top sheet of paper reaches the proper paper feed level, the
paper pushes up the pick-up roller and the actuator [C] on the pick-up roller
supporter [D] de-activates the lift sensor [E] to stop the lift motor.
After several paper feeds, the paper level gradually lowers, then the lift sensor is
activated and the lift motor turns on again until the lift sensor is de-activated again.
PTM
5-11
B070/B071
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5.7 PAPER SIZE DETECTION
[A]
[B]
1 2 3
B511D111.WMF
A4-LEF
B5-LEF
A5-LEF
A5-SEF
LT-LEF
HLT-
LEF
1
0
0
HTL-
SEF
1
1
0
SW1
SW2
SW3
0
1
1
1
0
1
0
1
0
0
0
1
0
0
0
1: HI 0: LOW
Top Tray (Tray 1) and Middle Tray (Tray 2)
For the top and middle trays, the paper size switch [A] detects the paper size. The
paper size switch contains three microswitches. The paper size switch is actuated
by an actuator plate [B] at the rear of the tray. Each paper size has its own unique
combination as shown in the table and the CPU determines the paper size by the
combination.
Bottom Tray (Tray 3)
The bottom tray has the same switch as the top and middle trays. However, it is
only used for detecting when the tray is pushed in.
For the bottom tray, the paper size must be selected in the SP5019-007:
B070/B071
5-12
PTM
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5.8 REMAINING PAPER DETECTION
[E]
[A]
[D]
[C]
[B]
B511D109.WMF
The amount of paper remaining in the tray is detected by the three paper height
photointerrupter sensors on the left rail as the bottom plate rises. Five states,
determined by the position of the actuator are possible.
1. With the actuator [A] below paper height sensor 1 [B], no sensor is actuated
and the display indicates 100%.
2. When the actuator passes paper height sensor 1 [B] , the display indicates 75%
of the paper supply remaining.
3. When the actuator passes paper height sensor 2 [C], the display indicates 50%
of the paper supply remaining.
4. When the actuator passes paper height sensor 3 [D], the display indicates 25%
of the paper supply remaining.
When the actuator enters the gap of the near end sensor [E], the machine
signals near end.
Finally, when the last sheet feeds, the paper end sensor signals that the tray is
empty.
PTM
5-13
B070/B071
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5.9 PAPER END DETECTION
[A]
[B]
B511D110.WMF
The paper end sensor [A] detects the top sheet of the paper in the tray by
monitoring the reflected light. When the paper tray runs out of paper, the paper end
sensor does not receive the reflected light due to the cutout [B]. Then, the tray lift
motor rotates backwards 2 seconds to drop the tray bottom plate.
B070/B071
5-14
PTM
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SECTION 6
SR860 BOOKLET FINISHER
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6. OVERALL MACHINE INFORMATION
6.1 SR860 3000 SHEET BOOKLET FINISHER (B468)
NOTE: The 3000 Sheet Booklet Finisher B468 is used with the B070 (90 ppm)
Upper Tray
Tray
Unstapled
Stapled
500 sheets (A4, A5 LEF, B5, 81/2"x11")
250 sheets (A3 SEF, B4 SEF, 11"x17" SEF, 81/2"x11",
12"x18"
Capacity
(80 g/m2)
100 sheets (A5 SEF, A6 SEF, B6 SEF, 51/2"x81/2")
Max docs. Total sheets
Size
50 docs.
500 sheets
A4 LEF, 81/2"x11" LEF
A3, A4 SEF, B4, B5, 12"x18",
11"x17", 81/2"x11"
25 docs.
250 sheets
Stapled
(Mixed
Sizes)
A3 LEF, A4 LEF, B4 LEF, B5
LEF, 11"x17" LEF, 81/2"x11"
LEF
16 docs
30 sheets
Paper Size
Paper Weight
A3 ~ A5, A6 SEF, B6 SEF, 12"x18", 11"x17" ~ 51/2"x81/2"
52 g/m2 ~ 216 g/m2
Lower Tray
Documents selected for booklet finishing (saddle-stitching) are folded, stapled, and
output only to the lower tray.
Tray
Unstaple 2,500 Sheets A4 LEF, 81/2"x11" LEF
Capacity
d
A3 SEF, A4 SEF, B4 SEF, B5, 11"x17"
SEF, 81/2"x14", 81/2"x11" SEF, 12"x18"
A5 LEF
1,250 Sheets
(80 g/m2)
500 Sheets
100 Sheets
Max docs.
50 docs.
50 docs.
30 docs.
A5 SEF, B6 SEF, 51/2"x81/2"
Stapled
Total sheets
2,500 sheets
1,250 sheets
1,250 sheets
Size
A4 LEF, 81/2"x11" LEF
A4 SEF, B5, 81/2"x11" SEF
A3, B4, 12"x18", 11"x17"
A3 LEF, A4 LEF, B4 LEF,
B5 LEF, 11"x17" LEF,
81/2"x11" LEF.
Stapled
(Mixed
Sizes)
50 docs.
30 sheets
Paper Size
A3 ~ A5, A6 SEF, B6 SEF, 12"x18", 11"x17" ~ 51/2"x81/2"
LEF
Paper Weight
52 g/m2 ~ 216 g/m2
Proof Tray
Tray Capacity
250 sheets (A4, 81/2"x11" or smaller)
50 sheets (B4, 81/2"x14" or larger)
52 g/m2 ~ 216 g/m2
Paper Weight
PTM
6-1
B070/B071
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Staple Specifications
Binding Capacity
(80 g/m2)
50 sheets (A4, 81/2" x 11" or smaller)
30 sheets (B4, 81/2" x 14" or larger)
30 sheets (A3 and A4 LEF, B4 and B5 LEF,
11" x 17"and 81/2" x 11" LEF
Same Size
Mixed
Sizes
Paper Size
A3 to B5, 11" x 17" to 81/2" x 11"
Paper Weight
Stapling Position
Stapling Capacity
64 g/m2 to 90 g/m2
Front (1), Back (1), Back (1: diagonal), 2 positions
5,000 staples/cartridge
Booklet Staple Specifications
Binding Capacity (80 g/m2)
15 Sheets
Paper Size
Paper Weight
A3 SEF, B4 SEF, A4 SEF, 11" x 17" SEF, 81/2" x 11" SEF
64 g/m2 ~ 90 g/m2
Stapling Position
Stapling Capacity
Fold Position
Center, 2 Locations
2,000 Staples/Cartridge
Center, Half-Folding
Saddle-Stitch Capacity
Max. Docs.
Total Sheets
2~5
Size
A4 SEF,
25
15
10
30
20
10
6~10
11~15
2~5
6~10
11~15
81/2" x 11" SEF
A3 SEF,
B4 SEF,
11" x 17" SEF
B070/B071
6-2
PTM
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6.2 PUNCH UNIT (B377)
The Punch Unit B377 is installed in the 3000 Sheet Booklet Finisher
B468 connected to the B070 (90 ppm).
Punch Position
North America (NA)
Europe (E)
2/3 holes B377-17
2/4 holes B377-27
Northern Europe (NE)
All modes
4 holes
B377-31
Punching Allowed
Allowed Paper Sizes
Holes
2-hole (
EUR/A)
Feed
SEF
LEF
SEF
LEF
SEF
LEF
SEF
LEF
SEF
Paper Size
A3 ~ A5, 11" x 17" ~ 51/2" x 81/2"
A4 ~ A5, 81/2" x 11", 51/2" x 81/2"
A3 ~ A5, 11" x 17" ~ 51/2" x 81/2"
A4 ~ A5, 81/2" x 11", 51/2" x 81/2"
A3, B4, 11" x 17"
A4, B5, 81/2" x 11"
A3, B4, 11x17"
A4, B5, 81/2" x 11"
A3 ~ A5, 11" x 17" ~ 51/2" x 81/2"
2-hole (NA)
3-hole (NA)
4-holes (
EUR/A)
4-holes
(North
Europe)
LEF
A3 ~ A5, 81/2" x 11", 51/2" x 81/2"
Weight
Allowed Paper Weight
Hopper Capacity
Holes
2-hole
3-hole
4-hole (E)
4-hole (NE)
2-hole (NA)
NA (2/3-hole)
52 ~ 163 g/m2
(14 ~ 43 lb.)
More than 6 K prints
EUR/A (4-hole) More than 8 K prints
EUR/A (2-hole) More than 10 K prints
Rated Voltage of
Output Connector
Dimensions (W x D x
H)
Max. DC 24 V
700 x 620 x 960 mm (27.6" x 24.4" x 37.8")
Weight
Power Consumption
Power Supply
Approx. 65 kg (143 lb.) (With Finisher)
72 W (3 A/24 V)
DC 24 V (From Copier to Finisher)
PTM
6-3
B070/B071
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6.3 OVERALL MECHANICAL INFORMATION
6.3.1 MECHANICAL COMPNENT LAYOUT
1
2
3
4
5
15
6
7
8
14
13
12
11
9
10
B468D001.WMF
1. Proof Tray
9. Stapler Unit
2. Guide Plate Motor
3. Guide Plate
10. Pressure Plate Unit
11. Saddle Stitch Stapler
12. Folder Plate
4. Shift Roller
5. Tray Junction Gate
6. Punch Unit
13. Lower Tray
14. Folder Rollers
15. Upper Tray
7. Stapler Junction Gate
8. Pre-Stack Tray
B070/B071
6-4
PTM
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6.4 DRIVE LAYOUT
2
3
1
4
12
11
10
9
8
7
5
6
B468D006.WMFF
1. Proof Tray Motor
7. Pre-Stack Motor
8. Exit Motor
2. Lower Tray Lift Motor
3. Lower Tray Encoder Disk
4. Upper Tray Lift Motor
5. Pressure Plate Motor
6. Stapler Transport Motor
9. Entrance Motor
10. Shift Roller Motor
11. Shift Drive Motor
12. Punch Motor
PTM
6-5
B070/B071
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2
1
3
4
5
6
7
8
B468D007.WMF
1. Stack Feed Out Belt
2. Folder Roller Motor
3. Folder Plate Motor
4. Feed Out Belt Motor
5. Jogger Fence Motor
6. Jogger Fences
7. Stapler Movement Motor
8. Stapler Rotation Motor
B070/B071
6-6
PTM
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6.5 DETAILED DESCRIPTIONS
6.5.1 TRAY/STAPLER JUNCTION GATES
Proof (Upper Tray)
Sort/Stack
Staple
[D]
[B]
[C]
[A]
B468D010.WMF
B468D009.WMF
B468D008.WMF
The finishing mode selected for the job determines the direction of the paper in the
finisher.
• Proof Tray (Top of the unit): Paper is sent to the top tray.
• Shift: Paper is sent straight to the upper or lower tray.
• Staple:. Paper is sent down to the stapler unit
Selected Operation Mode
Solenoid/Gate
Proof
OFF
Closed
ON
Sort/Stack
OFF
Staple
ON
Open
OFF
[A] Stapler junction gate solenoid
[B] Stapler junction gate
[C] Proof tray junction gate solenoid
[D] Proof tray junction gate
Closed
OFF
Closed
Open
Closed
PTM
6-7
B070/B071
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6.5.2 PRE-STACKING
[B]
[E]
[C]
[F]
[A]
[D]
B468D011.WMF
During a multiple copy job selected for stapling, the pre-stacking mechanism
delays the first two sheets of every set (after the first set) to allow enough time to
staple the preceding stack on the stapler tray. Pre-stacking is performed with the
first and second sheets for the second and all subsequent sets.
Shortly after the first sheet of the set enters the finisher, the pre-stack junction gate
solenoid [A] switches on, opens the pre-stack junction gate [B] and shunts the first
sheet to the paper pre-stack tray [C]. When the first sheet passes the pre-stack
roller [D], the pre-stack motor switches off and the sheet stops.
Shortly after the trailing edge of the first sheet enters the finisher, the solenoid
switches off, and the junction gate closes. This allows the second sheet of the set
to pass the closed junction gate and enter the main paper path [E].
At the prescribed time, the pre-stack motor switches on, and the pre-stack
transport roller [F] rotates and sends the first sheet to the stapler tray at the same
time as the second sheet arrives there.
All subsequent sheets of the same set are sent through the main paper path to the
stapler tray for stapling.
B070/B071
6-8
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6.5.3 VERTICAL LIFT MECHANISM
Overview
[A]
[B]
B468D101.WMF
At power on, both trays lower slightly, then the upper tray stops at the feed-out
position. The machine is ready for feed out to the upper tray [A]
During printing, the upper [A] or lower tray [B] (whichever is selected) is repeatedly
lowered until the stack reaches a certain height and then the job halts. The upper
tray holds 500 sheets (A4 LEF), and the lower tray holds 2500 sheets.
Both trays can be used for the normal, shift, and staple modes. However, only the
lower tray can be used for the booklet binding (saddle-stitch mode).
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6-9
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6.5.4 UPPER TRAY
[B]
[E]
[A]
[F]
[C]
[G]
[D]
B468D102.WMF
[A]: Upper tray lift motor
[B]: Upper tray paper height sensor
[C]: Upper tray lift solenoid
[D]: Upper tray full sensor
[E]: Upper tray paper sensor
[F]: Upper limit switch (upper tray)
Just After the Power is Switched on
At power on, the motor [A] moves the upper tray to the start position just under the
feed-out slot. The motor stops when the paper height sensor [B] detects the tray.
Height Adjustment During Feed-Out
The upper tray moves up and down on a rack and pinion on a movable side fence
that remains locked in place during copying.
When the top of the stack actuates the sensor [B], a solenoid [C] inside the upper
tray releases a locked one-way clutch long enough to lower the upper tray a short
distance on its track to allow more pages to feed out. This process repeats until the
tray is full.
Upper Tray Full
When the tray is full, a metal actuator [G] on the side of the upper tray frame
actuates the upper tray full sensor [D] and the job stops.
The paper sensor [E] inside the upper tray detects when the stack is removed from
the tray, and the tray returns to the initial position at the feed-out slot. The upper
limit switch [F] (a micro-switch) is a backup if sensor [B] fails to stop the tray.
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6.5.5 LOWER TRAY
[B]
[A]
[D]
[E]
[F]
[C]
B468D104.WMF
B468D103.WMF
[A]: Upper tray lift motor
[B]: Upper tray upper limit sensor
[C]: Upper limit switch (upper tray)
[D]: Lower tray lift motor
[E]: Lower tray paper height sensor 1
[F]: Lower tray paper height sensor 2
Just After the Power is Switched on
At power on, the upper tray moves to the start position under the feed-out slot, as
described previously.
Positioning the Lower Tray for Feed-out
If the lower tray is selected for a job, the upper tray is moved away from the feed-
out slot at the start of the job. The motor [A] lifts the side fence and upper tray to
upper limit sensor [B], which stops the motor. The upper tray remains locked in
position on the side fence (by the upper tray lift solenoid) while the lower tray is in
use.
If sensor [B] fails, switch [C] stops the tray.
While the upper tray is being raised, motor [D] lifts the lower tray to the feed-out
slot. The motor stops when the upper tray paper height sensor detects the tray.
Lower Tray Height Adjustment During Feed-out
Two sensors and a long feeler that contacts the top of the stack control the lower
tray height during feed-out.
When the top of the stack is low, the feeler drops and the actuator swings up and
actuates height sensor 1 [E]. As the stack grows higher, the feeler is pushed up
until it actuates height sensor 2 [F]. After height sensor 2 remains active for 3
seconds, the lift motor [D] switches on and lowers the tray a short distance. This
process repeats until the tray is full.
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6-11
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Lower Tray Full
[D]
[C]
[B]
[F]
[A]
[E]
B468D104.WMF
[A]: Lower tray full sensor (sort/shift mode)
[B]: Lower tray lift motor
[C]: Lower tray encoder sensor
[D]: Encoder disk
[E]: Lower tray full sensor (saddle-stitch mode)
[F]: Lower tray paper sensor
The sensor that is used depends on which mode the user has selected.
Normal sorting/stapling, without saddle stitching: When the bottom of the tray
actuates sensor [A], the lift motor [B] continues to rotate for a certain number of
rotations. The rotations are detected using sensor [C] and encoder disk [D]. Then
printing stops. If sensor [C] fails, the upper limit switch (lower tray) stops the motor.
This switch (not shown in the diagram) is next to the plastic foam roller at the feed-
out slot.
Saddle-stitch mode: Sensor [A] is not used. The tray is lowered until the actuator
on the side of the tray actuates sensor [E]. Then printing stops.
In both modes, when the stack is removed from the tray, sensor [F] de-actuates
and returns the lower tray to the initial position at the feed-out slot.
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6.5.6 SHIFT MECHANISM
[A]
[K]
[B]
[C]
[D]
[J]
[G]
[E]
[H]
[I]
[F]
B468D105.WMF
The same shift mechanism is used for the upper tray and lower tray.
Shift Roller Rotation
The shift roller [A] is turned by the shift roller motor [B].
Shift Roller Horizontal Movement
The shift roller is moved from left to right by the shift motor [C] and shift gear disk
[D].
When the trailing edge of the copy passes the upper transport roller, the shift motor
switches on, moving the shift roller to the left or right via the shift gear disk [D] and
the link [E].
After the paper is delivered to the tray [F], the shift roller moves to the home
position, detected by the shift HP sensor [G].
The process is repeated for every page of the same set, when the trailing edge of
the page passes the transport roller.
For the next set, the shift motor rotates the gear disk in the opposite direction to
shift every page of the next stack to the opposite side.
Exit Guide Plate
The guide plate motor [H] (a stepper motor) controls the opening and closing of the
guide plate [I], via a cam and pin mechanism. The guide plate opens for each sheet
to allow the shift, then closes to keep the sheet in the correct position for feed out.
Two mylars [J] above the feed-out slot keep the copies straight in the feed path.
The guide plate position sensor [K] detects whether the guide plate is open or
closed.
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6-13
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6.5.7 PAPER POSITIONING
[C]
[F]
[G]
[D]
[B]
[E]
B468D014.WMF
[C]
[A]
Vertical Alignment
When the trailing edge of the copy passes the stapler tray entrance sensor [A], the
positioning roller solenoid [B] switches on long enough for the selected paper size
and pushes the positioning roller [C] onto the paper. The positioning roller and
alignment brush roller [D] rotate to push the paper and align the trailing edge of the
paper with the stack stopper [E].
The stapler transport motor (not shown in this diagram) drives rollers [C] and [D].
Horizontal alignment
When the Start key is pressed, the jogger motor [F] switches on and opens the
jogger fences 10 mm wider than the selected paper size.
When the leading edge of the sheet passes the staple unit entrance sensor, for the
initial alignment, the jogger motor switches on for the prescribed time and closes
the jogger fences 4 mm (2 mm closer to either side of the paper)
Next, the jogger motor switches on again for the prescribed time for the horizontal
alignment to close the jogger fences 6 mm (3 mm to the sides of the paper) for the
final alignment correction. The jogger motor switches on again and the fences
return to the wait position 10 mm wider than the selected paper size.
B070/B071
6-14
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6.5.8 STAPLER
Stapling Mechanism
[B]
[C]
[A]
B468D015.WMF
[D]
[E]
B468D106.WMF
Staple firing is driven by the stapler motor [A] inside the stapler unit. The stapler
hammer [B] fires the stapler [C].
The cartridge set sensor [D] detects the cartridge at the correct position, or logs an
SC if the stapler unit is not at the correct position.
The stapler end sensor [E] detects the staple end condition and logs an SC.
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6-15
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6.5.9 STAPLER MOVEMENT
The stapler performs horizontal and rotational movement in each of the four staple
modes.
Horizontal Stapler Movement
[D]
[A]
[B]
[C]
B468D016.WMF
The stapler movement motor [A] drives the timing belt [B] which moves stapler [C]
left and right on a support bar [D].
When the Start key is pressed, the jogger fences move to the wait position 10 mm
wider than the selected paper size, the stapler motor switches on and moves the
stapler to the staple position and then switches off. The motor switches on and off
for the time needed to position the stapler for the paper size selected for the job.
If the stack is to be stapled at two locations, the stapler moves to the front position
first, staples, moves to the back position, staples, and then returns to the home
position.
NOTE: SP6120 001~011 (Staple Jogger Adjustment). Use this SP to fine
adjust the staple unit jogger fences for different paper sizes. For
details, see section “5. Service Tables”.
B070/B071
6-16
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Rotational Stapler Movement
[F]
[E]
[D]
[C]
[B]
[A]
B468D017.WMF
When the user has selected oblique stapling at one position, first the stapler motor
switches on and off for the amount of time needed to move the stapler to the
stapling position for the selected paper size.
At the correct time, the stapler rotation motor [A] switches on and via the timing belt
[B] rotates the worm gear [C]. The worm gear drives the gear [D] and the lift arm
[E], which lifts and positions the stapler unit [F] so the stapler can fire the staple at
a 45 degree angle.
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6-17
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6.5.10 FEED OUT
[D]
[I]
[A]
[H]
[C]
[B]
[G]
B468D018.WMF
[E]
[F]
B468D019.WMF
After a set has been stapled, the stack feed out motor [A] switches on and drives
the stack feed out belt [B]. The pawl [C] on the belt lifts the stapled stack and
transports it to the exit rollers [D]. There are two pawls on the belt, to increase
productivity.
The exit guide plate [E] remains open until the leading edge of the stapled sheets
has passed the prescribed distance from the tray exit rollers, then the exit guide
plate closes, and the stapled sheets feed out to the tray [F].
A cam and pin [G], powered by the guide plate motor [H], opens and closes the
guide plate.
The stack feed out motor stops for 300 ms to allow the exit rollers to feed out the
stapled sheets to the output tray. This pause prevents the copies from pushing out
too far onto the tray.
The stack feed out motor switches on again until the pawl actuates the stack feed
out belt HP sensor [I].
B070/B071
6-18
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6.5.11 BOOKLET FINISHING
OVERVIEW
Stapling: Two booklet staplers are used. These are about half way up the stack
fed-out path The stack feed-out belt moves the stack to the correct position for
stapling.
Folding: This is done in two phases: initial folding and final folding.
• Initial folding: At the top of the stack feed-out belt, a plate pushes the centre of
the copy (at the stapled place) through a pair of rollers to give the booklet an
initial fold. However, this fold is only a partial fold.
• Final folding: The partially folded copy drops to the lower tray, where it is caught
by a pressure plate mechanism, which completes the fold in the booklet before
letting it drop onto the lower tray.
6.5.12 BOOKLET STAPLING AND FOLDING
[A]
B468D020.WMF
The sheets are aligned by the jogger fences before stapling. (ꢀ 3.5)
The aligned sheets are sent to the booklet stapler unit and positioned below the
booklet staplers [A] for stapling at two locations in the center of the paper.
The stack feed-out belt lifts the booklet until two pawls on the folder plate
mechanism (see the next page) catch the staples to position the booklet for folding.
PTM
6-19
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6.5.13 INITIAL FOLDING
[B]
[A]
[C]
B468D021.WMF
[F]
[D]
[H]
[G]
[E]
B468D022.WMF
The folder plate motor [A] switches on and drives the folder plate [B] forward to
push the center of the booklet into the nip of the folder rollers [C], giving the booklet
a partial fold.
This is a detailed cross-section of the operation described above. The timing of the
sequence depends on the size of the paper selected for the job.
The stack feed-out belt transports the booklet toward the paper exit [D] and stops
when the center of the booklet is opposite the nip of the folder rollers [E].
The folder roller motor starts to turn and the folder rollers [E] start rotating. Then
the folder plate motor switches on and pushes the folder plate [F] into the center of
the booklet, driving the booklet between the rotating rollers. The booklet [G]
(partially folded) then feeds out between the folder rollers.
The booklet exit sensor [H] detects the booklet when it leaves the folder rollers.
This sensor triggers the mechanism for the next phase of the operation.
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6-20
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6.5.14 FINAL FOLDING AND FEED-OUT
[J]
[C]
[D]
[G]
[F]
[H]
[E]
[I]
[A]
[B]
B468D023.WMF
When the finisher is ready to feed out the first stapled booklet, the lower tray [A]
descends past the pressure plate slot [J], the spring-loaded arms inside the lower
tray snap into the grooves on the side fence, and the springs push the arms
against the bottom of the support wing [B] to raise it.
Then, before the first stapled booklet falls from the slot above, the pressure plate
motor [E] (stepper motor) rotates the gear and cam [D] counter-clockwise to extend
the pressure plate [C]. The lower tray then raises and pushes the pressure plate up
until the actuator [F] actuates the pressure plate lift sensor [G] and switches off the
lower tray lift motor.
Then, the folded and stapled booklet comes out of the booklet exit slot, actuates
the booklet exit sensor, and falls onto the pressure plate below. The actuated
booklet exit sensor switches on the pressure plate motor, which rotates the gear
and cam clockwise to retract the pressure plate. The motor rotates until the
actuator on the rim of the cam actuates the pressure plate HP sensor [H] and stops
the motor. Retracting the pressure plate allows the stapled booklet to fall past the
pressure plate slot onto the stack below.
Next, the pressure plate motor switches on again to extend the pressure plate,
while the lower tray raises and pushes the folded and stapled edges of the booklets
up against the pressure plate until the actuator [F] actuates the pressure plate lift
sensor [G] and switches off the lower tray lift motor. The booklets remain pressed
between the extended pressure plate and lower tray until the next booklet is fed
out.
The pressure plate limit switch [ I ] switches off the lower tray lift motor if the
pressure plate lift sensor fails.
PTM
6-21
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6.6 PUNCH UNIT B377 (OPTION)
The punch unit punches holes in printed sheets, one by one. The punch unit is
provided with a new punch mechanism to improve the accuracy of punching.
NOTE: The illustrations below show the unit for Europe for 2/4 hole punching.
The North American unit has five holes for 2/3 hole punching.
6.6.1 PUNCH DRIVE MECHANISM
[A]
[F]
[E]
[D]
[C]
[B]
B377D505.WMF
The punch motor [A] drives the punch mechanism. At the correct time after the
trailing edge of the paper passes the finisher entrance sensor [B], the punch motor
turns on and the paper stops. The punch clutch [C] turns and drives the punch
heads [D].
The punch HP sensor [E] detects the home position for the actuator. The punch
unit switches off when the cut-out in the punch shaft disk [F] enters the punch HP
sensor.
NOTE: SP6113 (Punch Hole Adjustment) adjusts the punch hole position in
the sub scan direction for two holes (001 2-Hole) or for three holes (002
3-Hole). Use the spacers provided with the punch unit to adjust the
position of the punch in the main scan direction. For details, refer to the
installation of the punch unit in section “1. Installation”).
B070/B071
6-22
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[C]
[B]
[D]
[A]
B377D504.WMF
When the finisher has received the command that changes the number of punch
holes for the job, the punch hole motor [A] turns on until the actuator disk changes
the status of the punch hole switch [B] (until it switches on or off). This indicates
that the cover [C] and the punch cam [D] have moved to one side or the other to
determine which punchers are used.
PTM
6-23
B070/B071
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6.6.2 PUNCH WASTE COLLECTION
[A]
[B]
[C]
B377D506.WMF
Waste punchouts are collected in the punch waste hopper [A] below the punch unit
inside the finisher.
When the top of the punchout waste in the hopper reaches and actuates the
hopper sensor [B], a message will be displayed on the operation panel after the
current job is completed.
This sensor also detects whether the punch waste hopper is installed. When the
waste hopper is taken out, the arm [C] moves down and this will actuate the sensor
and display a message in the operation panel. This message is the same as for the
hopper full condition.
B070/B071
6-24
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SECTION 7
3,000-SHEET FINISHER
MJ-1026
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7. SR840 3000 SHEET FINISHER (B478)
7.1 SPECIFICATION
UPPER TRAY
Paper Capacity (80 g/m2)
500 sheets (A4, 81/2" x 11" and smaller)
250 sheets (B4, 81/2" x 14" and larger)
A3 to A6 SEF, 11" x 17" to 51/2" x 81/2", 12" x 18"
52 to 216 g/m2
Paper Size
Paper Weight
Upper Tray Full Detection
SHIFT TRAY
Provided
Paper Capacity (80 g/m2)
3000 sheets (A4 LEF, B5 LEF, 81/2" x 11" LEF)
1500 sheets (A3, A4 SEF, B4 and B5 SEF, 11" x 17",
81/2" x 14", 81/2" x 11" SEF, 12" x 18")
500 sheets (A5 LEF, 51/2" x 81/2" LEF)
100 sheets (A5 SEF, 51/2" x 81/2" SEF)
A3 to A5, 11" x 17" to 51/2" x 81/2", 12" x 18" (including
tab paper)
Paper Size
Paper Weight
52 to 216 g/m2
Shift Tray Full Detection
STAPLER
Provided
Stapling Stack Size
A4, B5, 81/2" x 11" (Max. 100 Sheets)
A3, B4, 11" x 17", 81/2" x 14" (Max. 50 sheets)
A3 to B5
Stapling Paper Size
11" x 17" to 81/2" x 11"
Stapling Paper Weight
Staple Position
64 to 80 g/m2
4 Modes
1 Staple: Front, Rear, Rear-Oblique
2 Stapes: 2 locations
Staple Capacity
Staple Supply
5000 staples/cartridge
Cartridge or Staple Replacement
Stapled Stack Size
Sheets
Sets
Sizes
10 ~ 100
200 ~ 30
A4 SEF, B5 SEF, 81/2" x 11"
SEF
A4 LEF, B5 LEF, 81/2" x 11"
LEF
2 ~ 9
150
10 ~ 50
2 ~ 9
150 ~ 30
150
A3, B4, 11" x 17", 81/2" x
14"
Trim Waste Staple Capacity
Waste Staple Hopper Full
Detection
30,000 or more
Provided
Power Consumption
Power Source
Size (W x D x H)
Less than 100 W
DC 24 V (From Mainframe)
800 x 730 x 980 mm
31.5 x 28.7 x 38.6 in.
Less than 65 kg (143 lb.)
Weight
Compatible Machines
B070 (90 cpm), B071 (105 cpm), B064 (60 cpm),
B065 (75 cpm)
PTM
7-1
B070/B071
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7.1.1 SPECIFICATION PUNCH UNIT (B531)
The Punch Unit B531 is installed in the 3000 Sheet Finisher .
Punch Hole Positions
2/3-hole (North America)
2/4-hole (Europe)
Punch Paper Size
2-Hole (NA)
A5 ~ A3 SEF, 11" x 17"~5 1/2" x 81/2" SEF
A5 ~ A4 LEF, 8 1/2" x 11" LEF, 51/2" x 81/2"
LEF
3-Hole (NA)
A3 SEF, B4 SEF, 11" x 17" SEF
A4 LEF, B5 LEF, 81/2" x11" LEF
A3 SEF, 11" x 17" SEF
4-Hole ( EUR/A)
A4 LEF, 81/2" x 11" LEF
Paper Weight
2-Hole (NA)
3-Hole (NA)
4-Hole ( EUR/A)
Punch Waste Hopper Capacity
2-Hole (NA)
52 g/m2 ~ 163 g/m2
52 g/m2 ~ 163 g/m2
52 g/m2 ~ 128 g/m2
10K
3-Hole (NA)
15K
4-Hole ( EUR/A)
Operation Modes
15K
All (Shift, Proof, Staple)
DIP SW Settings
The correct DIP SW settings of the Punch Unit 531 are provided in the table below
for your reference only. The DIP switches of these punch units do not need to be
changed at installation, or adjusted for operation.
DIP SW Settings
Punch Unit
2/3-Hole (NA)
Unit No.
B531-17
1
1
1
2
0
0
3
1
0
4
0
1
2/4-Hole ( EUR/A)
B531-27
0: OFF
1: ON
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7-2
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7.1.2 SPECIFICATION PUNCH UNIT (A812)
The Punch Unit A812 is installed in the 3000 Sheet Finisher B478.
Punch Hole Positions
2-hole, 3-hole (NA)
4-hole (EUR/A)
4-hole (North Europe)
Punch Paper Size
2-Hole
A5 ~ A3 SEF, 11" x 17" ~ 81/2" x 11" SEF
A5 ~ A4 LEF, 81/2" x 11" LEF
A3 SEF, B4 SEF, 11" x 17" SEF
A4 LEF, B5 LEF, 81/2" x 11" LEF
A3 SEF, 11" x 17" SEF
3-Hole (NA)
4-Hole ( EUR/A)
4-Hole (North Europe)
A4 LEF, 11" x 17" LEF
B5 ~ A3 SEF, 81/2" x 11" ~ 11" x 17" SEF
A5 ~ A4 LEF, 81/2" x 11" LEF, 51/2" x 81/2"
LEF
Paper Weight
2-Hole, 3-Hole (NA)
52 g/m2 ~ 163 g/m2
4-Hole (Europe/North Europe) 52 g/m2 ~ 128 g/m2
Punch Waste Hopper Capacity
2-Hole
40K
3-Hole (NA)
15K
4-Hole ( EUR/A)
4-Hole (North Europe)
Power Supply
Power Consumption
Weight
15K
15K
DC 24 V (From Finisher)
60 W
Less than 2.4 K (5.3 lb.)
All (Shift, Proof, Staple)
Operation Modes
DIP SW Settings
The correct DIP SW settings of the Punch Unit A812 are provided in the table
below for your reference only. The DIP switches of these punch units do not need
to be changed at installation, or adjusted for operation.
DIP SW Settings
Punch Unit
Unit No.
1
0
1
0
0
0
2
0
0
1
0
0
3
0
0
0
1
0
4
0
0
0
0
1
2-Hole ( EUR/A)
3-Hole (NA)
4-Hole ( EUR/A)
4-Hole (North Europe) A812-31
2-Hole (NA)
A812-40/A812-67
A812-57
A812-30
A812-32
0: OFF
1: ON
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7.1.3 SPECIFICATION JOGGER UNIT B513
The Jogger Unit B513 is installed above the shift tray of the 3000 Sheet Finisher
B478.
Paper Size
A3 SEF, B4 SEF, 11" x 17" SEF
A4 LEF, B5 LEF, 81/2" x 11" LEF
52 g/m2 ~ 216 g/m2
Paper Weight
Weight
Less than 1.7 kg (3.7 lb.)
Dimensions (W x D x H) 125 mm x 450 mm x 100 mm
5" x 17.7" x 4"
Power Supply
Power Consumption
DC 24 V, DC 5V (From Finisher)
24 W
B070/B071
7-4
PTM
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7.2 MECHANICAL COMPONENT LAYOUT
1
2
3
4
5
6
7
8
9
21
20
19
10
11
18
17
16
15
12
13
14
B478V500.WMF
1. Upper Tray
12. Stack Plate
2. Middle Transport Rollers
3. Upper Tray Exit Roller
4. Upper Transport Rollers
5. Tray Junction Gate
6. Stapler Junction Gate
7. Entrance Rollers
13. Staple Waste Hopper
14. Stapler
15. Alignment Brush Roller
16. Positioning Roller
17. Stack Feed-out Belt
18. Shift Tray Drive Belt
19. Lower Transport Rollers
20. Shift Tray
8. Punch Unit
9. Pre-stack Junction Gate
10. Punch Waste Hopper
11. Pre-stack Tray
21. Shift Tray Exit Roller
PTM
7-5
B070/B071
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7.3 ELECTRICAL COMPONENT DESCRIPTION
Symbol
Motors
M01
Name
Function
Drives the exit roller for the shift tray.
Moves the shift tray up or down.
Shift Tray Exit
M02
Shift Tray Lift
Exit Guide
Opens and closes the upper exit guide.
M03
Drives the lower transport rollers, the positioning roller
and the alignment brush roller
M04
Lower Transport
Moves the shift tray from side to side.
Moves the positioning roller into contact with the paper.
Moves the stacking roller in and out.
M05
M06
M07
M08
M09
M10
M11
M12
M13
M14
M15
M16
Shift
Positioning Roller
Stacking Roller Drag
Stacking Roller
Jogger
Rotates the stacking roller.
Moves the jogger fences.
Drives the stack feed-out belt.
Stack Feed-Out Belt
Stack Plate - Center
Stapler
Presses down the center of the edge for stapling.
Moves the staple unit from side to side.
Presses down the front corner of the edge for stapling.
Presses down the rear corner of the edge for stapling.
Rotates the stapler 45 degrees for oblique stapling.
Drives the staple hammer.
Stack Plate – Front
Stack Plate – Rear
Stapler Rotation
Staple Hammer
Drives the punch shaft and roller. Punch Unit B531
(option).
M17
M18
Punch
Drives the entrance rollers, the middle and upper
transport rollers, and upper tray exit roller.
Upper Transport
Drives the shift jogger fences against the sides of the
sheets to align the stack, then reverses to return them
to the home position. Jogger Unit B513 (option).
M19
M20
Shift Jogger
Raises the shift jogger fences after aligning the stack,
then reverses and lowers them when returning to the
home position. Jogger Unit B513 (option).
Shift Jogger Lift
BOARDS
PCB
Main
Controls the finisher and communicates with the copier.
Controls the stapler unit.
Stapler
Punch
PCB
Passes signals between the punch unit and the finisher
main board. Punch Unit B531 (option).
PCB
Jogger
Controls the shift/jogger unit B513 (option).
PCB
SENSORS
Entrance
Detects the copy paper entering the finisher and checks
for misfeeds.
S01
S02
S03
Upper Tray Exit
Upper Tray Limit
Checks for misfeeds at the upper tray.
Detects when the paper stack height in the upper tray is
at its upper limit.
Checks for misfeeds at the shift tray exit.
S04
S05
Shift Tray Exit
Detects whether the guide plate is opened or not.
Exit Guide Open
Detects the shift tray home position for standby mode
and for staple mode.
S06
Staple Mode HP 1
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Symbol
Name
Function
Detects the shift tray home position for standby mode
and for staple mode.
S07
Staple Mode HP 2
Shift Lower Limit – Large Detects the lower limit for the shift tray when large
S09
Paper
paper sizes are being used
Not used.
S10
S11
S12
S13
Shift Tray Lower Limit 2
Shift Tray Lower Limit 3
Shift Mode HP
Detects when the shift tray is at its lower limit.
Detects the shift tray home position in sort/stack mode.
Detects when the stacking roller is at home position.
Stacking Roller HP
Detects whether the shift tray is at either the front or
home HP.
S14
S15
Shift Tray Half-Turn
Determines when to turn off the pre-stack paper stopper
solenoid.
Pre-Stack Tray Paper
Detects jams at the staple tray exit.
S16
S17
S18
S19
S20
S21
S22
S23
Stapler Tray Exit
Detects the home position of the positioning roller.
Detects the home position of the stack feed-out belt.
Detects the copy paper in the stapler tray.
Positioning Roller HP
Stack Feed-Out Belt HP
Stapler Tray Paper
Jogger HP
Detects the home position of the shift jogger fences.
Detects the home position of the center stack plate.
Detects the home position of the front stack plate.
Detects the home position of the rear stack plate.
Stack Plate - Center HP
Stack Plate – Front
Stack Plate – Rear
Detects the home position of the staple unit for side-to-
side movement.
S24
S25
Stapler HP
Detects the home position of the stapler unit for 45-
degree rotation.
Stapler Rotation HP
Detects the on timing of the stapler return solenoid.
Detects when the staple waste hopper is full.
S26
S27
Stapler Return
Staple Waste Hopper
Detects when the punch waste hopper is full and
detects when the punch tray is set. Punch Unit B531
(option).
S28
Punch Waste Hopper
Detects the cam home position for the 2-hole punch.
Punch Unit B531 (option).
S29
S30
S31
Punch HP 1
Detects the cam home position for 3/4 punch. Punch
Unit B531 (option).
Punch HP 2
Detects the home position of the jogger unit arms during
paper alignment. Jogger Unit B513 (option).
Shift Jogger HP
Detects the when both shift jogger fences are at the
lowered position and ready to move against the sides of
the stack. Jogger Unit B513 (option).
S32
Shift Jogger Lift HP
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Symbol
SOLENOIDS
Name
Function
Drives the tray junction gate.
Drives the stapler junction gate.
(Upper) Tray Junction
Gate
SOL1
SOL2
SOL3
SOL4
Stapler Junction Gate
Pre-Stack Junction Gate Drives the pre-stack junction gate.
Pre-stack Paper Stopper Drives the stopper pawl of the pre-stacking tray.
Positions the stapler correctly on its return from
the staple supply point.
SOL5
SWITCHES
SW1
Stapler Return
Cuts the power to the shift tray lift motor when the
Shift Tray Upper Limit
shift tray position is at its upper limit.
SW2
Front Door Safety
Emergency Stop
Cuts the dc power when the front door is opened.
Switches the current job off and on to allow time
for the operator to remove paper from the shift
tray.
SW3
B070/B071
7-8
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7.4 DRIVE LAYOUT
1
2
3
4
5
19
18
17
16
15
14
13
12
6
7
20
21
11
22
23
10
9
8
B478V503.WMF
26
24
25
B478V504.WMF
1. Upper Transport Roller 2
2. Upper Tray Exit Roller
3. Lower Transport Roller 2
4. Shift Tray Lift Motor
5. Shift Tray Exit Motor
6. Shift Tray Exit Roller
7. Shift Tray
14. Lower Transport Roller 1
15. Transport Roller 1
16. Entrance Roller 2
17. Entrance Roller
18. Upper Transport Roller 1
19. Upper Transport Motor
20. Stack Feed-out Motor
21. Jogger Motor
8. Shift Motor
9. Staple Tray Exit Roller
10. Positioning Roller
11. Lower Transport Roller 3
12. Lower Transport Motor
22. Jogger Fence
23. Stack Plate Motor
24. Stapler Motor
25. Stack Feed-out Belt
26. Stapler Rotation Motor
13. Lower Transport Rollers 2
PTM
7-9
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7.5 DETAILED DESCRIPTIONS
7.5.1 TRAY AND STAPLER JUNCTION GATE
Upper Tray Mode
[A]
[D]
[C]
[B]
B478D506.WMF
Sort/Stack Mode
Staple Mode
[A]
[A]
[D]
[C]
[D]
[C]
[B]
[B]
B478D505.WMF
B478D507.WMF
Depending on the finishing mode, the copies are directed up, straight through, or
down by the combinations of open and closed junction gates.
Selected Operation Mode
Solenoid/Gate
Upper Tray
Sort/Stack
Staple
[A] Stapler junction gate
solenoid
Off
Off
ON
[B] Stapler junction gate
[C] Tray junction gate solenoid
[D] Tray junction gate
Closed
ON
OPEN
Closed
Off
Closed
OPEN
Off
Closed
B070/B071
7-10
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7.5.2 PAPER PRE-STACKING
[A]
[B]
[E]
[F]
[D]
[C]
B478D000.WMF
This mechanism improves productivity in staple mode. It is only used when copying
on A4, LT, or B5 (all LEF).
During stapling, the copier has to wait. This mechanism reduces the wait by
holding the first two sheets of a job while the previous job is still being stapled. It
only works during the second and subsequent sets of a multi-set copy job.
The pre-stack junction gate solenoid [A] turns on 120 mm after the 1st sheet of
paper turns on the entrance sensor, and this directs the sheet to the pre-stack tray
[B]. (This sheet cannot be fed to the stapler yet, because the first set is still being
stapled.) The pre-stack paper stopper solenoid [C] turns on 350 mm after the 1st
sheet turns on the entrance sensor. The pre-stack paper stopper [D] then stops the
paper.
The pre-stack junction gate solenoid turns off 230 mm after the trailing edge of the
1st sheet passes through the entrance sensor, and the 2nd sheet is sent to the
paper guide [E]. The pre-stack paper stopper is released about 40 mm after the
2nd sheet turns on the pre-stack stopper sensor [F], and the two sheets of copy
paper are sent to the stapler tray. All sheets after the 2nd sheet go to the stapler
tray via the paper guide [E].
PTM
7-11
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7.5.3 JOGGER UNIT PAPER POSITIONING
[C]
[A]
[G]
[F]
[E]
[B]
[D]
[L]
[M]
[I]
[K]
B478D508.WMF
[J]
In the staple mode, as every sheet of paper arrives in the jogger unit, it is vertically
and horizontally aligned, then the staple edge is pressed flat to ensure the edge of
the stack is aligned correctly for stapling.
Vertical Paper Alignment: About 60 ms after the trailing edge of the copy passes
the staple tray entrance sensor [A], the positioning roller motor [B] is energized to
push the positioning roller [C] into contact with the paper. The positioning roller and
alignment brush roller [D] rotate to push the paper back and align the trailing edge
of the paper against the stack stopper [E].
Horizontal Paper Alignment: When the print key is pressed, the jogger motor [F]
turns on and the jogger fences [G] move to the wait position about 7.2 mm wider
than the selected paper size on both sides. When the trailing edge of the paper
passes the staple unit entrance sensor, the jogger motor moves the jogger fences
3.7 mm towards the paper. Next, the jogger motor turns on again for 3.5 mm for the
horizontal paper alignment then goes back to the wait position.
Paper Stack Correction: After the paper is aligned in the stapler tray, the left [J],
center [K], and right [L] stack plate motors switch on briefly and drive the front
stack, center stack, and rear stack plates against the edge of the stack to flatten
the edge completely against the staple tray for stapling. When the next copy paper
turns on the stapler entrance sensor, the stack plate motor turns on and returns to
its home position. The home position is detected by stack plate HP sensor [M].
B070/B071
7-12
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7.5.4 STAPLER UNIT MOVEMENT
[A]
[B]
[C]
B478D513.WMF
Side-to-Side
The stapler motor [A] moves the stapler [B] from side to side. After the start key is
pressed, the stapler moves from its home position to the stapling position.
If two-staple-position mode is selected, for the first stack the stapler moves to the
rear stapling position first, staples, moves to the front position, staples and waits at
the front. For the second stack, the stapler staples the front corner first, then moves
to the rear corner and staples.
NOTE: For continuous stapling jobs, the corners are stapled rear then front for
the odd number stacks and stapled front then rear for even number
stacks.
After the job is completed, the stapler returns to its home position. This is detected
by the stapler HP sensor [C].
PTM
7-13
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[A]
[B]
[F]
[D]
B478D514.WMF
[E]
B478D523.WMF
B478D515.WMF
[C]
Rotation (1)
In the oblique staple position mode, the stapler rotation motor [A] rotates the
stapler units [B] 45° to counterclockwise after it moves to the stapling position.
Rotation (2)
When the staple end condition arises, the stapler motor moves the stapler to the
front and the stapler rotation motor rotates the stapler unit to clockwise to remove
the staple cartridge [C]. This allows the user to add new staples.
Once the staples have been installed, and the front door closed, the stapler unit
returns to its home position. As the stapler unit is returning to the home position,
the stapler return sensor [D] is activated, the return solenoid [E] turns on and it
assists the guide roller [F] to return to its guide (this guide directs the stapler during
rotation).
B070/B071
7-14
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7.5.5 STAPLER
[C]
[A]
[E]
[D]
[A]
B478D516.WMF
B478D521.WMF
[E]
[F]
[G]
B478D522.WMF
When the aligned copies are brought to the stapling position by the positioning
roller and jogger fences, the staple hammer motor [A] starts stapling.
During stapling, the stapler trims off the excess length [B] of the staples by lowering
the cutter [C]. This excess length depends on the number of copies in the set; there
will be very little for a stack containing 100 sheets. The staple waste drops into the
tray [D] in the stapler. When the stapler unit returns to its home position, the tray
hits the shaft [E] and the tray opens. The staple waste drops into the staple waste
hopper [F]. When the staple waste hopper is full, the actuator on its base activates
the staple waste hopper sensor [G]. An SC737 (Full Finisher Staple Waste Hopper)
is displayed.
PTM
7-15
B070/B071
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[C]
[D]
[A]
[B]
[E]
B478D518.WMF
[F]
B478D517.WMF
The stapler has a staple end sensor [A], cartridge set sensor [B] and staple
hammer HP sensor [C].
When a staple end or no cartridge condition is detected, a message is displayed
advising the operator to install a staple cartridge. If this condition is detected during
a copy job, the indication will appear, and the copy job will stop.
The staple cartridge has a clinch area [D] where jammed staples collect. The
operator can remove the jammed staples from the clinch area by pressing in the
releases [E] on both sides, then lowering the bracket lever [F].
B070/B071
7-16
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7.5.6 FEED-OUT
[G] [D]
[A]
[B]
[C]
[I]
[H]
[E]
B478D519.WMF
[F]
B478D512.WMF
After the copies have been stapled, the stack feed-out motor [A] starts. The pawl
[B] on the stack feed-out belt [C] transports the set of stapled copies up and feeds
it to the shift tray exit roller [D]. When stapling starts, the exit guide motor [E] opens
the upper exit guide [F], which includes the upper shift tray exit roller [G], in order to
feed out the leading edge of the copy set smoothly. The exit guide motor turns on
again a certain time after stapling is complete, and the upper exit guide plate is
lowered. Then the shift tray exit roller takes over the stack feed-out.
The on-off timing of the exit guide motor is detected by the exit guide open sensor
[H].
The stack-feed-out motor turns off when the pawl actuates the stack feed-out belt
home position sensor [I].
PTM
7-17
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7.5.7 PAPER EXIT STACKING
[A]
[B]
[C]
[E]
[F]
[D]
[H]
[I]
[G]
B478D524.WMF
The stacking roller assembly [A] is fastened to a plate [B] on a shaft by a spring [C].
The cam [D], in contact with the bottom of the plate, is connected to the stacking
roller drag motor [E] via a timing belt.
The stacking roller drag motor and timing belt rotate the cam against the bottom of
the plate to move the rollers forward and back with each sheet ejected onto the
shift tray.
The stacking roller motor [F] drives the shaft [G] that rotates the stacking rollers
counter-clockwise as the rollers move back. The simultaneous rotation and
backward movement of the roller assembly pulls each sheet back toward the copier
to align the edges of the stack on the shift tray.
The actuator [H] is mounted on the cam and rotating with both rotating clockwise)
and detects the roller assembly home position when the actuator leaves the gap of
the return drive HP sensor [I] and signals the machine that the rollers are at the
home position. The machine uses this information to control paper feed timing and
confirm that the mechanism is operating correctly. The cam and actuator make one
complete rotation for every sheet fed out of the machine onto the shift tray.
B070/B071
7-18
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7.5.8 SHIFT TRAY
Overview
[E]
[D]
[F]
[A]
[G]
[B]
[C]
B478D010.WMF
The shift tray lift motor [A] controls the vertical position of the shift tray [B] through
gears and timing belts [C].
Stand-by Mode
After the main switch is turned on, or when the stack is removed from the tray, the
end of the feeler on the tray falls and its actuator [D] rotates up into staple mode
HP sensor 2 [E] (S7) and switches it on. This switches on the lift motor, which
raises the tray until the tray pushes the actuator out of the sensor [E]. Then, the lift
motor stops the shift tray; this is the home position (the actuator [D] is between the
two sensors [E] and [F].
The shift tray upper limit switch (SW1) prevents the drive gear from being damaged
if stack height sensor 1 [E] fails. In case of a failure, when the shift tray pushes up
the actuator [G] and positioning rollers, the switch will cut the power to the shift tray
lift motor.
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7-19
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7.5.9 SHIFT TRAY UP/DOWN MOVEMENT
[D]
[B]
[C]
[H]
[A]
[G]
[F]
[E]
B478D010.WMF
Sort/Stack Mode (Shift Mode)
The shift tray moves to home position, which is when the actuator [F] has just
exited the shift mode home position sensor [G] (S12). During feed-out, the tray is
lowered automatically at prescribed intervals; sensor [D] (S7) is ignored. When the
stack is removed from the tray, the end of the feeler [E] between the arms of the
stacking roller falls, and its actuator [F] enters sensor [G] (S12) and switches it on.
This switches on the lift motor [H], which raises the tray until the actuator leaves
the sensor. Then, the lift motor stops the tray; this is the home position.
In sort/stack mode, if S12 fails when the tray is being lifted, the shift tray upper limit
switch (SW1) prevents the drive gear from being damaged.
Staple Mode
The shift tray moves to home position, which is when the actuator [B] is between
the staple mode home position sensors [C] and [D]. During feed-out, the shift tray
is lowered automatically at prescribed intervals. When the stack is removed from
the tray, the tray returns to the home position for stand-by mode.
B070/B071
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7.5.10 SHIFT TRAY LOWER LIMIT DETECTION
[A]
B478D010.WMF
[B]
[C]
This machine has two shift tray lower limit sensors: shift lower limit sensor [A] (S9)
for large paper (B4 and larger) and shift lower limit sensor [B] (S11) for small paper
(smaller than B4).
NOTE: Sensor [C] (S10) is not used.
When the actuator [D] enters sensor [A] while using large paper (about 1500
sheets are on the tray), a message will be displayed and copying will stop.
When the actuator [D] enters sensor [B] while using small paper (about 3,000
sheets are on the tray), a message will be displayed and copying will stop.
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7-21
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7.5.11 SHIFT TRAY SIDE-TO-SIDE MOVEMENT
[D]
[A]
[F]
[C]
[B]
[E]
B478D520.WMF
In sort/stack mode, the shift tray [A] moves from side to side to separate the sets of
copies.
The horizontal position of the shift tray is controlled by the shift motor [B] and shift
gear disk [C]. After one set of copies is made and delivered to the shift tray, the
shift motor turns on, driving the shift gear disk and the shaft [D]. The end fence [E]
is positioned by the shaft, creating the side-to-side movement.
When the shift gear disk has rotated 180 degrees (when the shift tray is fully shifted
across), the cut-out in the shift gear disk turns on the shift tray half-turn sensor [F]
and the shift motor stops. The next set of copies is then delivered. The motor turns
on, repeating the same process and moving the tray back to the previous position.
B070/B071
7-22
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7.6 JAM CONDITIONS
1. The entrance sensor does not turn on when the copier has fed paper 426 mm
after the copier exit sensor turned off.
2. The entrance sensor does not turn off when the upper transport motor has fed
paper 1.5 times the paper’s length after it turned on.
3. The upper tray exit sensor does not turn on when the upper transport motor
has fed paper 574 mm after the entrance sensor turned on.
4. The upper tray exit sensor does not turn off when the upper transport motor
has fed paper 1.5 times the paper’s length after it turned on.
5. In sort/stack mode, the shift tray exit sensor does not turn on when the upper
transport motor has fed paper 733 mm after the entrance sensor turned on.
6. In sort/stack mode, the shift tray exit sensor does not turn off when the upper
transport motor has fed paper 1.5 times the paper’s length after it turned on.
7. In staple mode, the stapler tray entrance sensor does not turn on when the
upper and lower transport motor have fed paper 835 mm after the entrance
sensor turned on.
8. In staple mode, the stapler tray entrance sensor does not turn off when the
upper transport motor has fed paper 1.5 times the paper’s length after it turned
on.
9. In staple mode, the stapler tray paper sensor does not turn off within 250
pulses of the stack feed-out motor after it started.
10. In staple mode, the shift tray exit sensor does not turn off within 1,260 ms after
the stack feed-out motor started.
PTM
7-23
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7.7 PUNCH UNIT B531 (OPTION)
7.7.1 PUNCH UNIT DRIVE
[C]
[A]
[B]
[D]
[E]
B531D102.WMF
The punch unit makes 2 or 3 holes at the trailing edge of the paper. The number of
holes depends on a selection made on the operation panel.
The cam [A] has 2 punches on one side and 3 punches on the other, and is turned
by the punch motor [B]. The punch motor turns on immediately after the trailing
edge of the paper passes the entrance sensor. The punches on the cam rotate
downward and punch holes in the paper.
After punching a sheet of paper, the cam returns to home position and stops.
Home position depends on whether 2 holes or 3 holes are being made, so there
are two punch HP sensors. Punch HP sensor 1 [C] is used when 2-hole punching
is selected, and punch HP sensor 2 [D] is used when 3-hole punching is selected.
When the cut-out [E] enters the slot of the punch HP in use (sensor 1 or 2-hole
punching or sensor 2 for 3/4-hole punching) the motor stops.
The knob (not shown) on the front end of the punch unit can be turned in either
direction to clear paper jammed in the punch unit.
B070/B071
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7.7.2 PUNCH WASTE COLLECTION
[A]
[B]
[C]
B531D103.WMF
Punch waste is collected in the punch waste hopper [A] positioned under the punch
unit.
When the level of the punch waste in the hopper rises as far as the hole [B] in the
hopper, the punch waste sensor [C] turns on, stops the job, and triggers a
message on the operation to indicate that the hopper is full and must be removed
and emptied.
The job resumes automatically after the hopper is emptied and returned to the
finisher.
The punch waste hopper sensor also functions as the hopper set sensor. When the
hopper is not in the finisher, or if it is not inserted completely, the spring loaded
sensor arm rotates up and to the right with the punch waste sensor away from the
hole in the hopper holder and a message is displayed. The message in this case is
the same as the hopper full message.
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7-25
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7.8 JOGGER UNIT B513 (OPTION)
7.8.1 JOGGER UNIT MECHANICAL LAYOUT
2
1
3
4
7
6
5
B513D003.WMF
1. Shift Jogger Fence Lift Motor
2. Shift Jogger Motor Timing Belt
3. Shift Jogger Motor
4. Shift Jogger Fence Timing Belt
5. Shift Jogger Fences
6. Shift Jogger HP Sensor
7. Shift Jogger Lift HP Sensor
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7.8.2 JOGGER UNIT DRIVE
[C]
[F]
[B]
[A]
[D]
[G]
[H]
[J]
[I]
[E]
B513D002.WMF
At prescribed intervals, the jogger motor [A] switches on and drives the jogger
timing belt [B], gear [C] and jogger fence timing belt [D] which drives the shift
jogger fences [E] against the sides of the stack to align its edges.
At the end of the job, the jogger fence lift motor [F] switches on and raises the
fences until the actuator [G] leaves the slot of the shift jogger fence lift HP sensor
[H] and shuts off the shift jogger fence lift motor.
At the same time, the jogger motor reverses and drives the fences away from the
sides of the stack until the actuator [I] deactivates the shift jogger fence HP sensor
[J] and switches off the jogger motor.
The jogger fences remain up in the standby position until the next job starts.
PTM
7-27
B070/B071
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SECTION 8
COVER INTERPOSER TRAY
MJ-7002
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8. COVER INTERPOSER TRAY TYPE 1075 (B470)
8.1 SPECIFICATION
Paper Separation
Paper Sizes
Paper Weight
FRR System with Feed Belt
A3 ~ A5, 11" x 17" ~ 51/2" x 81/2"
64 ~ 216 g/m2
Capacity
200 sheets (80 g/m2)
Power Supply
24 V ±10%, 5 V ±5% (From Finisher)
(from main machine)
Power Consumption
Dimensions (W x D x H)
Less than 48 W
500 x 620 x 200 mm
19.7" x 24.4" x 7.9"
Less than 12 kg (26.4 lb.)
Weight
PTM
8-1
B070/B071
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8.2 OVERALL MACHINE INFORMATION
8.2.1 MAIN LAYOUT
2
3
4
1
5
6
B470D001.WMF
1. Support tray
2. Slip sheet tray
3. Pick-up roller
4. Feed belt
5. Separation roller
6. Grip roller
B070/B071
8-2
PTM
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8.2.2 DRIVE LAYOUT
2
3
1
4
5
6
7
B470D003.WMF
1. Pick-up Roller
2. Feed Belt
3. Bottom Plate Lift Motor
4. Feed Motor
5. Transport Motor
6. Timing Belt
7. Vertical Transport Motor
PTM
8-3
B070/B071
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8.3 DETAILED DESCRIPTIONS
8.3.1 PAPER PATH
1
2
3
4
5
6
B470D006.WMF
1. Pick-up Roller
2. Feed Belt
3. Separation Roller
4. Grip Roller
5. Transport Roller 1
6. Transport Roller 2
The paper feeds from the tray, to the feed belt, then to the grip roller and down into
the paper path to the finisher below.
B070/B071
8-4
PTM
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8.3.2 PAPER FEED
[B]
[C]
[H]
[G]
[A]
[E]
[F]
[D]
B470D005.WMF
Power On
When paper is placed on the tray, the paper set sensor [A] in the tray actuates and
switches on the bottom plate lift motor [B]. The top of the stack raises the pick-up
roller unit until the actuator on this unit actuates the pick-up roller position sensor
[C] and switches the motor off.
Paper Separation and Feed
The pick-up roller [D] picks up the original, and the feed belt [E] feeds the sheet to
the grip roller. The separation roller [F] reverses if more than one sheet is fed
Bottom Tray Lift
As sheets feed from the top of the stack:
• The pick-up roller unit descends until the actuator on the pick-up roller unit drops
out of the pick-up roller position sensor [C].
• The bottom plate lift motor switches on to raise the stack until the actuator enters
the pick-up roller unit position sensor again and switches the motor off.
• This repeats until the end of the job or until paper runs out.
Paper Near-end
Near-end is detected when the actuator [G] on the bottom plate enters the near-
end sensor [H]
Paper End
After the last sheet feeds the paper set sensor [A] goes off and signals paper out.
PTM
8-5
B070/B071
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8.3.3 PAPER SIZE DETECTION
The width sensors [A] (S1, S2, S3) and length sensors [B] (S4, S5, S6) detect the
width and length of the paper on the interposer feed tray.
DLT SEF
A3 SEF
8 K SEF
B4 SEF
LG
10"x14"
F4
S6
S5
A4 SEF
LT SEF
US EXE SEF
B5 SEF
16 K SEF
8"x10"
S4
HLT SEF
A5 SEF
LT LEF
16 K LEF
US EXE LEF
B5 LEF
A5 LEF
HLT LEF
P5 P4 P3 P2
P1
S3
S2 S1
B470D901.WMF
B070/B071
8-6
PTM
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The table below lists the sensor output for each paper size.
S1
0
1
1
0
0
1
0
1
1
1
1
1
1
1
1
0
1
S2
1
1
0
1
0
1
0
0
1
1
0
0
0
1
0
0
0
S3
1
0
0
1
0
0
0
0
1
0
0
0
0
1
0
0
0
S4
1
1
1
0
1
0
0
0
1
1
1
1
1
0
1
0
0
S5
1
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
0
S6
1
1
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
A3
B4
A4 SEF
A4 LEF
B5 SEF
B5 LEF
A5 SEF
A5 LEF
11" x 17"
10" x 14" SEF
81/2" x 14"
81/2" x 13"
81/2" x 11"
11" x 81/2"
8" x 10"
51/2" x 81/2"
81/2" x 51/2"
71/2" x 101/2"
(US Exec.)
101/2" x 71/2"
(US Exec.)
8 K
0
1
0
1
0
1
1
0
0
0
0
0
1
1
1
1
0
1
1
0
1
1
1
0
1
0
0
1
0
0
16 K SEF
16 K LEF
The cover interposer tray detects all the paper sizes listed above. However, there
are some limitations on the display of the correct paper size.
North America
Europe/Asia
B4 SEF
B5 SEF
A5 SEF
A5 LEF
DLT SEF
LG SEF
LT SEF
LT LEF
257 x 364 mm Displays 10" x 14" *1
182 x 257
148 x 210
210 x 148
11" x 17"
81/2" x 14"
81/2" x 11"
11" x 81/2"
Displays “US Exec.” *1
Displays “HLT SEF” *1
Displays “HLT LEF” *1
Displays “8K LEF” *2
Displays “F4 SEF” *2
Displays “16 K SEF” *2
Displays “16 K LEF” *2
*1: Cannot be corrected.
*2: B064/B065: Can be corrected with SP5959 006 (Paper Size – Cover Sheet).
PTM
8-7
B070/B071
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B064/B065: Correct Paper Size Display
North America
Execute SP5959 006 and enter the correct number for the size of the paper loaded
for feeding from the cover interposer tray.
To Select for
Loaded
Display (Default)
Enter
Display
81/2" x 13"
101/2" x 71/2"
8" x 10"
81/2" x 13"
101/2" x 71/2"
8" x 10"
81/2" x 14"
81/2" x 11"
81/2" x 11"
165
173
171
Europe/Asia
Execute SP5959 006 and enter the correct number for the size of the paper loaded
for feeding from the cover interposer tray.
To Select for
Loaded
Display (Default)
Enter
Display
11" x 17"
81/2" x 11"
11" x 81/2"
81/4" x 13"
11" x 17"
81/2" x 11"
11" x 81/2"
81/4" x 13"
8 K
16 K SEF
16 K LEF
160
166
38
81/2" x 13" SEF
168
B070/B071: Paper Size Detection
Some paper sizes are almost the same and cannot be distinguished by the
sensors. To determine which sizes are detected, use SP 5158.
B070/B071
8-8
PTM
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SECTION 9
MULTI BYPASS TRAY
MY-1024
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9. MULTI BYPASS TRAY TYPE 2105 (B512)
9.1 SPECIFICATION
NOTE: The Bypass Tray is attached to the top of the LCT B511.
Paper Feed System
Tray Capacity
FRR
500 sheets (Thick Paper 0.11 mm)
Remaining Paper Detection 4-Step: Including Near-End
Paper Size
Tab Sheets
A5 to A3, 51/2" x 81/2" to 12" x 18"
A4 LEF, 81/2" x 11" LEF (requires attachment of tab
fence)
Paper Weight
52 to 216 g/m2
Weight
Power Source
Power Consumption
Dimensions (W x D x H)
Less than 18 kg (39.6 lb.)
24 Vdc, 5 Vdc (from copier)
50 W
680 x 561 x 181 mm
(26.7 x 21.1 x 7.1 in.)
PTM
9-1
B070/B071
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9.2 OVERALL MACHINE INFORMATION
9.2.1 MECHANICAL COMPONENT LAYOUT
3
4
5
6
7
8
9
2
1
B512D001.WMF
12
11
10
1. Transport Roller 2
2. Transport Roller 1
3. Grip Roller
4. Paper Feed Sensor
5. Lift Sensor
6. Feed Roller
7. Pick-up Roller
8. Paper Height Sensor 1
9. Paper Height Sensor 2
10. Lift Plate Actuator
11. Lift Plate
12. Separation Roller
B070/B071
9-2
PTM
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9.3 ELECTRICAL COMPONENT LAYOUT
6
5
7
4
3
8
2
1
9
10
11
12
B512D002.WMF
13
14
15
1. Paper Feed Sensor
2. Paper End Sensor
3. Lift Sensor
4. Pick-up Solenoid
5. Transport Clutch
6. Grip Clutch
7. Feed Clutch
8. Tray Motor
9. Paper Height Sensor 1
10. Paper Height Sensor 2
11. Lift Motor
12. Paper Length Sensor
13. Paper Width Switch
14. Lower Limit Sensor
15. Tray Lift Switch
PTM
9-3
B070/B071
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9.3.1 ELECTRICAL COMPONENT DESCRIPTIONS
Symbol
Clutches
MC8
Name
Function
Transport
Paper Feed
Grip
Drives the transport rollers in the bypass tray.
Drives the paper feed roller in the bypass tray.
Drives the grip clutch in the bypass tray.
MC9
MC10
Motors
M5
Tray
Drives all rollers in the bypass tray.
Lifts and lowers the tray.
M6
Tray Lift
Sensors
Detects the copy paper coming to the paper feed
roller and checks for misfeeds.
Detects when the paper in the bypass tray is at
the correct paper feed height.
Detects when the tray is at its lowest possible
position.
Informs the copier when the paper in the bypass
tray has run out.
S23
S24
S25
S26
Paper Feed
Lift
Lower Limit
Paper End
Used with the paper width switch to determine
paper size. This sensor is activated when paper is
set for short edge feed. For example, when the
paper width switch detects A4 width and this
sensor is off, the machine determines A4 is set for
long edge feed. When A4 width is detected and
the paper length sensor is on, then the machine
determines that A3 is loaded for short edge feed.
Detects the paper height in the bypass tray.
Detects the paper height in the bypass tray.
S27
Paper Length
S28
S29
Paper Height 1
Paper Height 2
Solenoid
s
Controls up-down movement of the pick-up roller
in the bypass tray.
SOL7
Pick-up
Tray Lift
Switches
Switches the tray lift motor on and off to lift and
lower the bottom plate of the tray. This switch
must be pressed to start paper feed.
A slide switch connected to the side fences. When
the side fences are moved to match the paper
width, four feelers inside the paper size switch
slide along wiring patterns of a terminal plate. The
wire pattern detected determines the paper width.
SW5
SW6
Paper Width
The numbering for the components does not start at 1 because the point-to-point
diagram for the bypass tray is included on the diagram for the LCT. For the
purpose of component numbering, they are considered together as one unit.
B070/B071
9-4
PTM
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9.4 DRIVE LAYOUT
5
4
6
3
7
2
1
8
12
B512D003.WMF
11
10
9
1. Transport Roller 2
2. Transport Roller 1
3. Grip Roller
4. Grip Clutch
5. Paper Feed Clutch
6. Transport Clutch
7. Tray Motor
8. Lift Motor
9. Lift Plate
10. Pick-up Roller
11. Separation Roller
12. Feed Roller
PTM
9-5
B070/B071
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9.5 DETAILED DESCRIPTIONS
9.5.1 PAPER PATH
1
2
3
4
5
6
B470D006.WMF
1. Pick-up Roller
2. Feed Belt
3. Separation Roller
4. Grip Roller
5. Transport Roller 1
6. Transport Roller 2
The paper feeds from the tray, to the feed belt, then to the grip roller and down into
the paper path to the finisher below.
B070/B071
9-6
PTM
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9.5.2 PAPER FEED
[B]
[C]
[H]
[G]
[A]
[E]
[F]
[D]
B470D005.WMF
Power On
When paper is placed on the tray, the paper set sensor [A] in the tray actuates and
switches on the bottom plate lift motor [B]. The top of the stack raises the pick-up
roller unit until the actuator on this unit actuates the pick-up roller position sensor
[C] and switches the motor off.
Paper Separation and Feed
The pick-up roller [D] picks up the original, and the feed belt [E] feeds the sheet to
the grip roller. The separation roller [F] reverses if more than one sheet is fed
Bottom Tray Lift
As sheets feed from the top of the stack:
• The pick-up roller unit descends until the actuator on the pick-up roller unit drops
out of the pick-up roller position sensor [C].
• The bottom plate lift motor switches on to raise the stack until the actuator enters
the pick-up roller unit position sensor again and switches the motor off.
• This repeats until the end of the job or until paper runs out.
Paper Near-end
Near-end is detected when the actuator [G] on the bottom plate enters the near-
end sensor [H]
Paper End
After the last sheet feeds the paper set sensor [A] goes off and signals paper out.
PTM
9-7
B070/B071
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9.5.3 PAPER SIZE DETECTION
The width sensors [A] (S1, S2, S3) and length sensors [B] (S4, S5, S6) detect the
width and length of the paper on the interposer feed tray.
DLT SEF
A3 SEF
8 K SEF
B4 SEF
LG
10"x14"
F4
S6
S5
A4 SEF
LT SEF
US EXE SEF
B5 SEF
16 K SEF
8"x10"
S4
HLT SEF
A5 SEF
LT LEF
16 K LEF
US EXE LEF
B5 LEF
A5 LEF
HLT LEF
P5 P4 P3 P2
P1
S3
S2 S1
B470D901.WMF
B070/B071
9-8
PTM
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The table below lists the sensor output for each paper size.
S1
0
1
1
0
0
1
0
1
1
1
1
1
1
1
1
0
1
S2
1
1
0
1
0
1
0
0
1
1
0
0
0
1
0
0
0
S3
1
0
0
1
0
0
0
0
1
0
0
0
0
1
0
0
0
S4
1
1
1
0
1
0
0
0
1
1
1
1
1
0
1
0
0
S5
1
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
0
S6
1
1
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
A3
B4
A4 SEF
A4 LEF
B5 SEF
B5 LEF
A5 SEF
A5 LEF
11" x 17"
10" x 14" SEF
81/2" x 14"
81/2" x 13"
81/2" x 11"
11" x 81/2"
8" x 10"
51/2" x 81/2"
81/2" x 51/2"
71/2" x 101/2"
(US Exec.)
101/2" x 71/2"
(US Exec.)
8 K
0
1
0
1
0
1
1
0
0
0
0
0
1
1
1
1
0
1
1
0
1
1
1
0
1
0
0
1
0
0
16 K SEF
16 K LEF
The cover interposer tray detects all the paper sizes listed above. However, there
are some limitations on the display of the correct paper size.
North America
Europe/Asia
B4 SEF
B5 SEF
A5 SEF
A5 LEF
DLT SEF
LG SEF
LT SEF
LT LEF
257 x 364 mm Displays 10" x 14" *1
182 x 257
148 x 210
210 x 148
11" x 17"
81/2" x 14"
81/2" x 11"
11" x 81/2"
Displays “US Exec.” *1
Displays “HLT SEF” *1
Displays “HLT LEF” *1
Displays “8K LEF” *2
Displays “F4 SEF” *2
Displays “16 K SEF” *2
Displays “16 K LEF” *2
*1: Cannot be corrected.
*2: B064/B065: Can be corrected with SP5959 006 (Paper Size – Cover Sheet).
PTM
9-9
B070/B071
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B064/B065: Correct Paper Size Display
North America
Execute SP5959 006 and enter the correct number for the size of the paper loaded
for feeding from the cover interposer tray.
To Select for
Loaded
Display (Default)
Enter
Display
81/2" x 13"
101/2" x 71/2"
8" x 10"
81/2" x 13"
101/2" x 71/2"
8" x 10"
81/2" x 14"
81/2" x 11"
81/2" x 11"
165
173
171
Europe/Asia
Execute SP5959 006 and enter the correct number for the size of the paper loaded
for feeding from the cover interposer tray.
To Select for
Loaded
Display (Default)
Enter
Display
11" x 17"
81/2" x 11"
11" x 81/2"
81/4" x 13"
11" x 17"
81/2" x 11"
11" x 81/2"
81/4" x 13"
8 K
16 K SEF
16 K LEF
160
166
38
81/2" x 13" SEF
168
B070/B071: Paper Size Detection
Some paper sizes are almost the same and cannot be distinguished by the
sensors. To determine which sizes are detected, use SP 5158.
B070/B071
9-10
PTM
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