Canon iR5800C, iR5800CN, iRC6800C, iRC6800CN Service Handbook
SERVICE HANDBOOK(temp)
iR C6800 Series
iR C6800CN
Feb 4 2004
Application
This manual has been issued by Canon Inc. for qualified persons to learn technical theory, installation, maintenance, and
repair of products. This manual covers all localities where the products are sold. For this reason, there may be
information in this manual that does not apply to your locality.
Corrections
This manual may contain technical inaccuracies or typographical errors due to improvements or changes in products.
When changes occur in applicable products or in the contents of this manual, Canon will release technical information
as the need arises. In the event of major changes in the contents of this manual over a long or short period, Canon will
issue a new edition of this manual.
The following paragraph does not apply to any countries where such provisions are inconsistent with local law.
Trademarks
The product names and company names used in this manual are the registered trademarks of the individual companies.
Copyright
This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may not be copied,
reproduced or translated into another language, in whole or in part, without the written consent of Canon Inc.
COPYRIGHT © 2001 CANON INC.
Printed in Japan
Caution
Use of this manual should be strictly supervised to avoid disclosure of confidential information.
Symbols Used
This documentation uses the following symbols to indicate special information:
Symbol Description
Indicates an item of a non-specific nature, possibly classified as Note, Caution, or Warning.
Indicates an item requiring care to avoid electric shocks.
Indicates an item requiring care to avoid combustion (fire).
Indicates an item prohibiting disassembly to avoid electric shocks or problems.
Introduction
Memo
REF.
Indicates an item requiring disconnection of the power plug from the electric outlet.
Indicates an item intended to provide notes assisting the understanding of the topic in question.
Indicates an item of reference assisting the understanding of the topic in question.
Provides a description of a service mode.
Provides a description of the nature of an error indication.
Introduction
The following rules apply throughout this Service Manual:
1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical
and mechanical systems with reference to the timing of operation.
In the diagrams, represents the path of mechanical drive; where a signal name accompanies the symbol ,
the arrow indicates the direction of the electric signal.
The expression "turn on the power" means flipping on the power switch, closing the front door, and closing the
delivery unit door, which results in supplying the machine with power.
2. In the digital circuits, '1'is used to indicate that the voltage level of a given signal is "High", while '0' is used to
indicate "Low".(The voltage value, however, differs from circuit to circuit.) In addition, the asterisk (*) as in
"DRMD*" indicates that the DRMD signal goes on when '0'.
In practically all cases, the internal mechanisms of a microprocessor cannot be checked in the field. Therefore, the
operations of the microprocessors used in the machines are not discussed: they are explained in terms of from
sensors to the input of the DC controller PCB and from the output of the DC controller PCB to the loads.
The descriptions in this Service Manual are subject to change without notice for product improvement or other
purposes, and major changes will be communicated in the form of Service Information bulletins.
All service persons are expected to have a good understanding of the contents of this Service Manual and all relevant
Service Information bulletins and be able to identify and isolate faults in the machine."
Contents
Contents
Chapter 1 Maintenance and Inspection
1.1 Periodically Replaced Parts............................................................................................................................... 1- 2
1.1.1Overview ..................................................................................................................................................... 1- 2
1.1.2Reader Unit.................................................................................................................................................. 1- 2
1.1.3Printer Unit .................................................................................................................................................. 1- 2
1.2 Durables and Consumables ............................................................................................................................... 1- 4
1.2.1Overview ..................................................................................................................................................... 1- 4
1.2.2Reader Unit.................................................................................................................................................. 1- 4
1.2.3Printer Unit .................................................................................................................................................. 1- 4
1.3 Scheduled Servicing Basic Procedure............................................................................................................... 1- 7
1.3.1Scheduled Servicing Basic Procedure......................................................................................................... 1- 7
1.3.2Scheduled Servicing (reader unit) ............................................................................................................... 1- 8
1.3.3Scheduled Servicing (printer unit) .............................................................................................................. 1- 9
1.4 Cleaning........................................................................................................................................................... 1- 17
1.4.1Cleaning the Photosensitive Drum ............................................................................................................ 1- 17
1.4.2Cleaning the Secondary Transfer Rear Guide ........................................................................................... 1- 18
1.4.3Cleaning the Registration Roller, Registration Guide, and Transparency Sensor .................................... 1- 19
1.5 Upgrading........................................................................................................................................................ 1- 22
1.5.1Outline of the Version Upgrade ................................................................................................................ 1- 22
1.5.2Outline of the Service Support Tool.......................................................................................................... 1- 22
1.5.3Network Interface of the Machine with the SST in Use ........................................................................... 1- 25
Chapter 2 Standards and Adjustments
2.1 Image Adjustments.......................................................................................................................................... 2- 30
2.1.1Image Position........................................................................................................................................... 2- 30
2.1.2Checking the Image Position..................................................................................................................... 2- 30
2.1.3Cassette...................................................................................................................................................... 2- 31
2.1.4Manual Feed Tray ..................................................................................................................................... 2- 31
2.1.5Front Deck................................................................................................................................................. 2- 32
2.2 Scanning System ............................................................................................................................................. 2- 35
2.2.1After Replacing the CCD Unit .................................................................................................................. 2- 35
2.2.2After Replacing the Copyboard Glass ....................................................................................................... 2- 35
2.2.3After Replacing the Reader Controller PCB or Initializing the RAM ...................................................... 2- 35
2.3 Laser Exposure System ................................................................................................................................... 2- 38
2.3.1After Replacing the Laser Scanner............................................................................................................ 2- 38
2.4 Image Formation System................................................................................................................................. 2- 39
2.4.1After Replacing the Black Developing Unit ............................................................................................. 2- 39
2.4.2Replacing the Color Developing Unit ....................................................................................................... 2- 39
2.4.3Replacing the Starter of the Color Developing Unit ................................................................................. 2- 41
2.4.4After Replacing the Primary Charging Assembly..................................................................................... 2- 43
2.4.5After Replacing the Primary Charging Wire............................................................................................. 2- 43
2.4.6After Replacing the Pre-Transfer Charging Wire ..................................................................................... 2- 43
Contents
2.4.7After Replacing the Pre-Transfer Charging Wire......................................................................................2- 43
2.4.8After Replacing the Waste Toner Box.......................................................................................................2- 43
2.4.9After Replacing the ITB Cleaner Blade.....................................................................................................2- 43
2.4.10After Repacking the Photosensitive Drum Cleaning Blade ....................................................................2- 43
2.4.11After Replacing the Photosensitive Drum ...............................................................................................2- 44
2.4.12After Repacking the ITB ........................................................................................................................2- 44
2.4.13After Replacing the Primary Transfer Roller ..........................................................................................2- 44
2.4.14After Replacing the Primary Transfer Outside Roller.............................................................................2- 44
2.4.15After Replacing the Primary Transfer Static Eliminator.........................................................................2- 44
2.4.16After Replacing the ITB Unit ..................................................................................................................2- 44
2.5 Fixing System ..................................................................................................................................................2- 45
2.5.1Points to Note When Mounting the Fixing Assembly...............................................................................2- 45
2.5.2After Replacing the Fixing Roller .............................................................................................................2- 45
2.5.3After Replacing the Fixing Web................................................................................................................2- 45
2.5.4Position of the Fixing inlet Guide..............................................................................................................2- 45
2.5.5Points to Note When Mounting the Pressure Roller..................................................................................2- 45
2.5.6Adjusting the Position of the Feeding Web Solenoid (SL2) .....................................................................2- 46
2.5.7Points to Note About the Position of the Fixing Thermal Switch .............................................................2- 46
2.5.8Points to Note When Mounting the Shift Thermal Switch ........................................................................2- 46
2.5.9Points to Note When Mounting the Outside Heating Roller Thermal Switch ..........................................2- 47
2.5.10Points to Note When Mounting the Fixing Upper Thermistor ................................................................2- 47
2.5.11Points to Note When Mounting the Fixing Lower Thermistor................................................................2- 47
2.5.12Points to Note When Mounting the External Heat Thermistor ...............................................................2- 48
2.6 Electrical Components.....................................................................................................................................2- 49
2.6.1When Replacing the Reader Controller PCB ............................................................................................2- 49
2.6.2After Replacing the DC Controller PCB ...................................................................................................2- 50
2.6.3Points to Note When Mounting the DC Controller PCB/ DC Controller Box..........................................2- 50
2.6.4After Replacing the Main Controller PCB (main).....................................................................................2- 51
2.6.5After Repacking the SRAM Board............................................................................................................2- 51
2.6.6After Replacing the HDD ..........................................................................................................................2- 52
2.6.7When Replacing the HV2 PCB .................................................................................................................2- 52
2.6.8When Replacing the ATR Sensor/Patch Image Read Sensor....................................................................2- 53
2.7 Pickup/Feeding System ...................................................................................................................................2- 54
2.7.1Adjusting the Horizontal Registration After Replacing the Pickup Cassette............................................2- 54
2.7.2Adjusting the Manual Feed Pickup Horizontal Registration .....................................................................2- 54
2.7.3Adjusting the Front Deck Pickup Horizontal Registration........................................................................2- 54
2.7.4Registering the Paper Width Basic Value .................................................................................................2- 56
Chapter 3 User Mode Items
3.1 Common Settings............................................................................................................................................. 3-60
3.2 Setting the Timers............................................................................................................................................ 3-62
3.3 Adjustment, Cleaning ...................................................................................................................................... 3-63
3.4 Report .............................................................................................................................................................. 3-64
3.5 System Control Settings .................................................................................................................................. 3-65
3.6 Copier Settings................................................................................................................................................. 3-66
3.7 Common Transmission Settings ...................................................................................................................... 3-67
3.8 Box Settings..................................................................................................................................................... 3-69
3.9 Printer Settings................................................................................................................................................. 3-70
Contents
3.10 Address Book Settings .................................................................................................................................. 3-71
Chapter 4 Service Mode
4.1 Test Print ......................................................................................................................................................... 4- 74
4.1.1Overview ................................................................................................................................................... 4- 74
4.1.2Test Print TYPE ........................................................................................................................................ 4- 74
4.1.3Selecting Test Print TYPE ........................................................................................................................ 4- 74
4.1.416-Gradation (TYPE=4)............................................................................................................................ 4- 75
4.1.5Grid (TYPE=6).......................................................................................................................................... 4- 75
4.1.6MCYBk Horizontal Stripes (TYPE=10) ................................................................................................... 4- 76
4.1.764-Gradation (TYPE=12).......................................................................................................................... 4- 77
4.1.8Full Color 16-Gradation (TYPE=14) ........................................................................................................ 4- 77
Chapter 5 Outline of Components
5.1 Clutch/Solenoid ............................................................................................................................................... 5- 80
5.1.1Clutches and Solenoids ............................................................................................................................. 5- 80
5.2 Motor ............................................................................................................................................................... 5- 83
5.2.1Motors ....................................................................................................................................................... 5- 83
5.3 Fan ................................................................................................................................................................... 5- 89
5.3.1Fans ........................................................................................................................................................... 5- 89
5.4 Sensor .............................................................................................................................................................. 5- 93
5.4.1Sensors....................................................................................................................................................... 5- 93
5.5 Switch............................................................................................................................................................ 5- 103
5.5.1Switches................................................................................................................................................... 5- 103
5.6 Lamps, Heaters, and Others .......................................................................................................................... 5- 105
5.6.1Heaters, Lamps, and Others .................................................................................................................... 5- 105
5.7 PCBs.............................................................................................................................................................. 5- 108
5.7.1PCB ......................................................................................................................................................... 5- 108
Chapter 6 System Construction
6.1 System Construction...................................................................................................................................... 6- 114
6.1.1System Configuration with Pickup/Delivery Accessories ...................................................................... 6- 114
6.1.2System Configuration with Printing/Transmission Accessories ............................................................. 6- 114
6.2 Function List.................................................................................................................................................. 6- 116
6.2.1Print Speed .............................................................................................................................................. 6- 116
6.2.2Paper Type............................................................................................................................................... 6- 119
6.2.3Accessories .............................................................................................................................................. 6- 120
Chapter 1
Chapter 1 Maintenance
and Inspection
1-1
Chapter 1
1.1 Periodically Replaced Parts
1.1.1 Overview
0002-9397
Some parts of the machine must be replaced on a periodical basis for the machine to maintain a specific level of
performance. They must be replaced regardless of the presence/absence of external changes or damage, as the
performance of the machine will be considerably affected once they fail.
If possible, plan any replacement to coincide with a scheduled visit.
The intervals indicated may vary depending on the site environment and user habit.
- Checking the Timing of Replacement
The timing of replacement may be checked using the following service mode items:
- Copier
COPIER>COUNTER>PRDC-1
- Accessory
COPIER>COUNTER>PRDC-2
1.1.2 Reader Unit
0000-9633
The machine's reader unit does not have parts that must be replaced on a periodical basis.
1.1.3 Printer Unit
Ref. Parts name Parts No. Q'ty Interval Remarks
1 Ozone filter
2 Toner filter
3 Primary charging wire
4 Charging wire cleaner 1
5 Charging wire cleaner 2
T-1-1
FC5-2486-
000
FL2-0554-
000
FB4-3687-
000
FL2-2427-
000
FL2-2428-
000
AR
1
1
1
1
as of February 2004
250,000
images*
250,000
images*
500,000
images*
500,000
images*
500,000
images*
0002-9400
(*)
(*)
(*)
(*)
1-2
as of February 2004
Ref. Parts name Parts No. Q'ty Interval Remarks
Chapter 1
Pre-transfer charging
6
assembly
Pre-transfer charging
7
assembly wire cleaner 1
Pre-transfer charging
8
assembly wire cleaner 2
9 Primary grid wire
10 Fixing thermistor
11 Pressure thermistor
Outside heating roller
12
thermistor
13 Primary charging assembly
Pre-transfer charging
14
assembly
FB4-3687-
000
FL2-2427-
000
FL2-2428-
000
FY1-0883-
000
FK2-0013-
000
FK2-0013-
000
FK2-0013-
000
FM2-0429-
000
FM2-0427-
000
500,000
AR
images*
500,000
1
images*
500,000
1
images*
500,000
1
images*
1 500,000 prints
1 500,000 prints
1 500,000 prints
1,000,000
1
images
1,000,000
1
images
(*)
(*)
15 Fixing thermal switch
16 Pressure thermal switch
Outside heating thermal
17
switch
FM2-0497-
000
FM2-0498-
000
FM2-0499-
000
1
1
1
1,000,000
prints
1,000,000
prints
1,000,000
prints
* In the case of a black mono color print, counted as 1; in the case of a full color print, counted as 4 images.
1-3
Chapter 1
1.2 Durables and Consumables
1.2.1 Overview
0005-8047
Some parts of the machine may have to be replaced once or more over the period of machine warranty because of
wear or damage. Replace them as needed by referring to the table of estimated lives (expressed in terms of the
number of prints they make).
Making Checks When Replacing Durables
Use the following service mode items to find out when to replace parts:
- Machine
COPIER>COUNTER>DRBL-1
- Accessory
COPIER>COUNTER>DRBL-2
1.2.2 Reader Unit
0000-9645
The machine's reader unit does not have parts that are classified as durables.
1.2.3 Printer Unit
0002-9470
T-1-2
2
as of February 2004
Ref. Parts name Parts No.
[1] Feed roller (manual feed)
Separation roller (manual
[2]
feed)
[3] ITB cleaner blade
[4] ITB cleaner scoop-up sheet
Primary transfer outside
[5]
roller
Secondary transfer static
[6]
eliminator holder
FB1-8581-
000
FB5-0873-
000
FC5-1662-
000
FL2-0411-
000
FC5-2157-
000
FL2-0598-
000
Q't
Interval Remarks
y
1 120,000 prints
1 120,000 prints
1 150,000 prints
1 150,000 prints
1 150,000 prints
1 150,000 prints
1-4
as of February 2004
Chapter 1
Ref. Parts name Parts No.
[7] Fixing roller
[8] Pressure roller
[9] Outside heating roller
[10] Cleaner scoop-up sheet
[11] Cleaner blade
Pickup roller (left/right
[12]
paper deck)
Feed roller (left/right paper
[13]
deck)
FC5-6298-
000
FC5-6299-
000
FC5-2285-
000
FL2-0422-
000
FC5-1788-
000
FC5-2524-
000
FC5-2526-
000
Q't
eac
each250,000 prints
Interval Remarks
y
150,000
1
prints*
150,000
1
prints*
150,000
1
prints*
250,000
1
images*2
1
250,000
images*2
2
250,000 prints
h
2
(one edge in
use)
Separation roller (left/right
[14]
paper deck)
[15] Pickup roller (cassette 3/4)
[16] Feed roller (cassette 3/4)
Separation roller (cassette 3/4)FC5-2528-
[17]
[18] Primary transfer roller
Primary transfer static
[19]
eliminator
[20] ITB
Secondary transfer inside
[21]
roller
FC5-2528-
000
FC5-2524-
000
FC5-2526-
000
000
FC5-1660-
000
FM2-0420-
000
FC5-1658-
000
FC5-1661-
000
2
each250,000 prints
2
each250,000 prints
2
each250,000 prints
2
each250,000 prints
300,000
1
images*2
300,000
1
images*2
300,000
1
images*2
1 300,000 prints
1-5
Chapter 1
as of February 2004
Ref. Parts name Parts No.
[22] Edge scraper
[23] Color developing assembly
[24] Fixing web
[25] Fixing heat insulating bush
Delivery upper separation
[26]
claw
Delivery lower separation
[27]
claw unit
[28] Pressure insulating bush
[29] Outside heat insulating bush
FC5-5136-
000
FM2-0446-
000
FC5-2286-
000
FB5-3613-
000
FM2-1672-
000
FM2-0501-
000
RB1-0325-
000
FC5-2582-
000
Q't
Interval Remarks
y
500,000
2
images*2
3 500,000 prints
1 500,000 prints
2 500,000 prints
4 500,000 prints
6 500,000 prints
2 500,000 prints
2 500,000 prints
Fixing heat discharge ozone
[30]
filter
[31] Tner filter (inside)
Bk developing cylinder
[32]
(black developing assembly)
Developing roll (black
[33]
developing assembly)
FC5-6370-
000
FL2-0554-
000
FM2-0434-
000
FC5-1863-
000
1
2
1
2
1,000,000
images
1,000,000
images
1,000,000
prints
1,000,000
prints
*1: in the case of a color ratio of 10%; if 100%, 60,000 prints; if 0%, 180,000 prints.
*2: in the case of a black mono color print, counted as 1 image; in the case of a full color print, counted as 4 images.
1-6
1.3 Scheduled Servicing Basic Procedure
Chapter 1
1.3.1 Scheduled Servicing Basic Procedure
0003-4125
- As a rule, provide scheduled servicing every 150,000 prints.
- Check with the Service Book before setting out for a scheduled service visit, and take parts for which replacement
is expected.
- If the power plug is left connected for a long time in a place subject to dust, humidity, or oil smoke, a fire hazard
is a possibility (i.e., the dust collecting around the plug can absorb moisture, resulting in insulating failure). Be sure
to disconnect the power plug on a periodical basis, and wipe off the dust and dirt collecting around it.
<Work Procedure>
1) Report to the person in charge, and check the general condition.
2) Record the counter reading, and check the faulty prints.
3) Make the following checks, and clean/adjust the items that are indicated:
T-1-3
Items
Text copy against image density standard
for soiling of back of paper
for clarity of characters
for margin
for fixing misplaced registration, soiled
back of paper
for margin standards (single-
sided print)
(double-sided print) leading edge: 4.0+1.5/-1.0mm
Feeding system registration upper/lower roller
for paper lint along front edge
of registration assembly
leading edge: 4.0+1.5/-1.0mm
left edge: 2.5+/- 1.5mm
left edge: 2.5+/- 2.0mm
4) Check the waste toner case.
If half full or more, dispose of the waste toner in a vinyl bag or the like for collection; or, replace the waste toner case.
1-7
Chapter 1
- If you need to dispose of the waste toner, be sure to do so in strict accordance with the regulations imposed by the
local authorities.
- Do not dispose of waste toner in a fire. Doing so may cause an explosion.
5) Clean the copyboard glass and the reading glass.
6) Make test copies.
7) Make sample copies.
8) Check the operation of the leakage breaker.
With the power switch at ON, push the test switch of the leakage breaker to see that it operates normally (i.e., the
breaker switch shifts to the OFF side to cut off the power).
If the leakage beaker fails to operate normally, replace it, and run a check once again.
<Resetting the Breaker>
When you have made the check, turn off the main power switch, and turn on the breaker switch, and then turn the
main power switch back on.
9) Put the sample copies in order, and clean up the area around the machine.
10) Record the final counter reading; at this time, be sure to fill out the blanks for 'FX-UP-RL' and 'DV-UNT-K'
(service counters).
11) Fill out the Service Book, and report to the person in change. Be sure to update the history of checks on the
leakage breaker in the Service Book.
1.3.2 Scheduled Servicing (reader unit)
Do not use solvents or oils other than those indicated herein.
T-1-4
Unit Location
Original
exposure
system
Original
exposure
system
Copyboard glass cleanas
ADF reading
glass
WorkInterva
ls
needed
cleanas
needed
0003-4139
Remarks
clean the face, back, and the white plate on the
back.
clean the back and the face.
1-8
Chapter 1
Unit Location
Original
exposure
system
Original
exposure
system
Original
exposure
system
Scanner rail clea
Scanner mirror
(No. 1 through
No. 3 mirrors)
Reflecting plate clean250,000
WorkInterva
ls
as
n/
needed
lubr
icat
e
clean250,000
images
images
Remarks
The foreign values are estimates only, and are subject to change based on future data.
1.3.3 Scheduled Servicing (printer unit)
Do not use solvents or oils other than those permitted.
0003-4126
1-9
Chapter 1
T-1-5
Unit Location Item Interval Remarks
Externals
and controls
Externals
and controls
Ozone filter replace250,000
images
Toner filter replace250,000
images
[1]
[2
Externals
and controls
Laser
exposure
system
Charging
assembly
Dust-
collecting
filter (primary)
Dust-colleting
glass
Primary
charging
assembly
[1]
[1]Toner filter
[2]Ozone filter
clean 250,000
prints
inside of the right upper cover
clean 250,000
prints
replace1,000,00
0 images
1-10
Unit Location Item Interval Remarks
Chapter 1
Charging
assembly
Charging
assembly
Charging
assembly
Charging
assembly
Primary
charging wire
Primary grid
wire
Charging wire
cleaner 1/2
(primary
changing
assembly)
Pre-transfer
charging
assembly
clean upon
installati
on
replace500,000
images
clean upon
installati
on,
250,000
images
replace500,000
images
replace500,000
images
replace1,000,00
0 images
Charging
assembly
Charging
assembly
Charging
assembly
Photosensiti
ve drum
Pre-transfer
charging wire
Charging wire
cleaner 1/2
(pre-transfer
charging
assembly)
Charging
assembly
shielding plate
Photosensitive
drum
clean upon
installati
on
replace500,000
images
replace500,000
images
clean upon
installati
on,
250,000
images
clean 250,000
images
1-11
Chapter 1
[
Unit Location Item Interval Remarks
Photosensiti
ve drum
Black
developing
assembly
Black
developing
assembly
Drum heater
sliding area
Developing
cylinder
Developing
stray toner-
blocking sheet
clean
1,000,00
/
0 images
lubri
cate
checkupon
installati
on
clean 250,000
prints
[1] [1]
Clean the terminal [1] of the slip ring using
alcohol; then, apply a small amount of
lubricant (FY9-6008).
Black
developing
assembly
Black
developing
assembly
Black
developing
assembly
Color
developing
assembly
Color
developing
assembly
Developing
drive gear
Developing
roll
Bias roller
toner
collection case
Developing
stray toner-
blocking sheet
ATR sensor
window
clean 250,000
prints
clean 250,000
prints
clean 250,000
images
clean 250,000
prints
clean 250,000
images
[4][3] [1]
[1]Developing stray toner-blocking sheet
[2]Developing drive gear
[3]Developing roll
[4]Bias roller toner collection case
[3]
1-12
Unit Location Item Interval Remarks
Chapter 1
Color
developing
assembly
Color
developing
assembly
Color
developing
assembly
Color
developing
assembly
Color toner
cartridge level
sensor window
Developing
cylinder
bushing
Bottle cover clean 250,000
Color toner
cartridge
placement
sensor window
clean 250,000
images
clean 250,000
images
images
clean 250,000
images
Intermediate
transfer
assembly
Intermediate
transfer
assembly
area
Patch image
sensor window
Rail,
thereunder
[1]
[1]Color toner cartridge placement sensor
window
clean 250,000
images
clean 150,000
prints
1-13
Chapter 1
e
d
Unit Location Item Interval Remarks
Intermediate
transfer
assembly
area
Intermediate
transfer
assembly
area
Secondary
transfer
assembly
Feeding
assembly
Scoop-up
sheet base,
thereunder
Cleaner
container,
hereunder
Secondary
transfer rear
guide
Feeding belt clean 150,000
clean 150,000
prints
clean 150,000
prints
clean 150,000
prints
prints
[1] [2]
Scoop-up sheet base, ther
[1]
[2]
Cleaner container, hereun
[2] [1]
Feeding
assembly
Feeding
assembly
Feeding
assembly
OHP sensor clean 250,000
prints
Registration
roller
Registration
guide
clean 250,000
prints
clean 250,000
prints
[1] Secondary transfer rear guide
[2] Feeding belt
[1]
[
[1]clean upper/lower OHP sensor using
blow brush
1-14
Unit Location Item Interval Remarks
Chapter 1
Hopper
assembly
Fixing
assembly
Fixing
assembly
Fixing
assembly
Fixing
assembly
Toner
receptacle/
supply mouth
Fixing web checkupon
Fixing
thermistor
Pressure
thermistor
Outside
heating roller
thermistor
clean 250,000
prints
installati
on
clean 150,000
prints
replace500,000
prints 枚
clean 150,000
prints
replace500,000
prints
clean 150,000
prints
replace500,000
prints
Fixing
assembly
Fixing
assembly
Fixing
assembly
Fixing
assembly
Delivery
assembly
Waste toner
collection
assembly
Fixing thermal
switch
Pressure
thermal switch
Outside
heating
thermal switch
Inlet guide clean 150,000
Upper/lower
separation
claw
Waste toner
box
clean 300,000
prints
replace1,000,00
0 prints
clean 150,000
prints
replace1,000,00
0 prints
clean 150,000
prints
replace1,000,00
0 prints
prints
clean 150,000
prints
inspect250,000
images
use lint-free with specified solvent.
use lint-free paper with specified solvent.
1-15
Chapter 1
note:
The black developing cylinder need not be cleaned on a periodical basis. If you must clean the surface of the cylinder,
be sure to dry wipe it with lint-free paper, NEVER using water or solvent.
The foregoing values are estimates only, and are subject to change based on future data.
1-16
1.4 Cleaning
Chapter 1
1.4.1 Cleaning the Photosensitive Drum
Do not rotate the magnetic roller during the work. Otherwise, waste toner can start to fall out of the cleaning
assembly.
1) Remove the photosensitive drum.
2) Moisten lint-free paper [1] with 5 to 10cc of alcohol [2]; then, collect 0.2 to 0.3g of drum cleaning powder (CK-
0429) [3] on the lint-free paper.
0004-1175
[3]
CK-0429
[2]
[1]
F-1-1
3) Force the lint-free paper against the photosensitive drum, and wipe from the front to the rear and from the rear to
the front as if to rub the surface of the drum.
- Keep the width of cleaning to 5 to 10 cm in the drum axial direction.
- Limit the number of back-and-froth movements of the lint-feed paper to 15 to 20 times. Forcing the paper against
the drum surface will rarely affect the life of the drum.
1-17
Chapter 1
F-1-2
5 10cm
4) When the alcohol has evaporated, dry wipe the surface of the drum with lint-free paper. If there is an uneven layer
of cleaning powder, go back to step 3), and clean the surface by increasing the number of back-and-forth movements.
5) Rotate the drum for the width that has been cleaned (5 to 10cm), and repeat steps 2 through 4 until the entire
surface has been cleaned.
1.4.2 Cleaning the Secondary Transfer Rear Guide
1) Open the front cover.
2) Slide out the fixing/feeding assembly.
3) Wipe the ribs one by one by moving lint-free paper moistened with alcohol in the direction of the arrow in the
figure.
1. Do not dry wipe, as the ribs are likely to become charged.
2. The ribs of the secondary transfer rear guide are located near the static eliminating brush [3]; do not move the lint-
free paper in the wrong direction to avoid trapping and bending the static eliminator.
0004-6732
1-18
F-1-3
Chapter 1
1.4.3 Cleaning the Registration Roller, Registration Guide, and
Transparency Sensor
1) Slide out the fixing/feeding assembly.
2) Push the leaf springs on both sides, and slide the fixing/feeding assembly farther out.
3) Remove the 3 screws [1], and turn overt the transparency upper sensor unit [2].
[1
[2]
F-1-4
0005-6999
4) Remove the paper lint building up over the transparency sensor [1] using a blower brush.
1-19
Chapter 1
[1]
F-1-5
5) Remove the 2 screws [1], and detach the grounding spring [2].
6) Remove the screw [3].
[2]
[1]
[3]
F-1-6
7) Remove the 3 screws [1], and detach the registration roller upper stay [3] together with the grounding spring [4]
while freeing the spring [2] off its hook.
[3] [2]
[4] [1]
F-1-7
8) Open the registration upper guide [1], and clean the back [1] of the upper guide and the lower guide [2] using lint-
free paper moistened with alcohol.
9) Remove the paper lint building up on the transparency sensor [3] using a blower brush.
1-20
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