Canon imageRUNNER iR ADV DX C257 C257i C257iF / C357 C357i C357iF C357P Service Manual

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Canon imageRUNNER ADVANCE C257 
Canon imageRUNNER ADVANCE C257i 
Canon imageRUNNER ADVANCE C257iF
Canon imageRUNNER ADVANCE C357 
Canon imageRUNNER ADVANCE C357i 
Canon imageRUNNER ADVANCE C357iF 
Canon imageRUNNER ADVANCE C357P 

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Contents
Safety Precautions...............................................................................................1
Laser................................................................................................................................................... 2
Laser Safety......................................................................................................................................... 2
Handling of Laser System......................................................................................................................2
Power Supply / Lithium Battery........................................................................................................... 3
Turn power switch ON...........................................................................................................................3
Power Supply Guidelines.......................................................................................................................3
Notes When Handling a Lithium Battery..................................................................................................3
Toner Safety........................................................................................................................................4
About Toner..........................................................................................................................................4
Handling Adhered Toner........................................................................................................................4
Notes on works....................................................................................................................................4
Points to Note Before Servicing..............................................................................................................4
Points to Note at Cleaning..................................................................................................................... 4
Notes on Assembly/Disassembly........................................................................................................... 5

1. Product Overview.............................................................................................6
Product Lineup.................................................................................................................................... 7
Host machine........................................................................................................................................7
Option.................................................................................................................................................. 8
Product Features ..............................................................................................................................11
Specifications.................................................................................................................................... 12
Host machine......................................................................................................................................12
FAX Specifications.............................................................................................................................. 13
Weight and Size..................................................................................................................................14
Productivity.........................................................................................................................................14
Paper type..........................................................................................................................................17
Available Paper Types.........................................................................................................................17
Parts Name....................................................................................................................................... 19
Cross Section View............................................................................................................................. 19
Control Panel......................................................................................................................................20
Main Menu..........................................................................................................................................21
Service Buttons...................................................................................................................................21

2. Technical Explanation (Device).................................................................... 23
Functional Configuration................................................................................................................... 24
Functional Configuration......................................................................................................................24
Original Exposure System.................................................................................................................25
Features.............................................................................................................................................25
Specifications..................................................................................................................................... 25
Basic Configuration............................................................................................................................. 27
Dust Detection Control.........................................................................................................................30
Image processing................................................................................................................................32
Outline of Electric Circuits ................................................................................................................... 37

ADF scan operation sequence (common to both 2-sided/1-sided).......................................................... 38
Scanner Unit.......................................................................................................................................41
Pickup Feed System........................................................................................................................... 42
Controller System..............................................................................................................................48
Overview............................................................................................................................................ 48
Laser Exposure System.................................................................................................................... 53
Overview............................................................................................................................................ 53
Specifications..................................................................................................................................... 54
Laser ON/OFF Control.........................................................................................................................55
Horizontal Scanning Synchronization Control........................................................................................56
Vertical Scanning Synchronization Control............................................................................................57
Scanner Motor Control.........................................................................................................................58
APC (Auto Power Control)................................................................................................................... 59
BD Detection Correction Control.......................................................................................................... 60
Dustproof Shutter................................................................................................................................60
Image Formation System.................................................................................................................. 62
Overview............................................................................................................................................ 62
Primary Charging................................................................................................................................ 64
Drum Unit (Developing/Drum).............................................................................................................. 65
Transfer..............................................................................................................................................70
Drum cleaning control..........................................................................................................................78
Image Stabilization Control.................................................................................................................. 79
Toner Supply Area.............................................................................................................................. 86
Waste Toner Feed Unit........................................................................................................................95
Other Controls.................................................................................................................................... 97
Fixing System..................................................................................................................................100
Overview.......................................................................................................................................... 100
Specifications....................................................................................................................................100
Component Parts.............................................................................................................................. 100
Fixing temperature control................................................................................................................. 102
Standby Temperature Control............................................................................................................ 103
Print Temperature Control..................................................................................................................104
Down Sequence Control.................................................................................................................... 105
Fixing Film Unit Engagement/Disengagement Control......................................................................... 107
Pre-fixing arch level control................................................................................................................ 108
Protection Function........................................................................................................................... 110
Pickup Feed System....................................................................................................................... 112
Overview.......................................................................................................................................... 112
Cassette Pickup Assembly.................................................................................................................115
Multi-purpose Tray Pickup Assembly.................................................................................................. 119
Registration Area.............................................................................................................................. 120
Delivery Assembly.............................................................................................................................122
Reverse/Duplex Assembly................................................................................................................. 123
Jam Detection...................................................................................................................................126
External Auxiliary System................................................................................................................129
Software counter............................................................................................................................... 129
Fan.................................................................................................................................................. 131
Power supply.................................................................................................................................... 133
Power-saving Function...................................................................................................................... 133
Quick Startup.................................................................................................................................... 135
Operating Conditions of the Heater Control......................................................................................... 136

3. Technical Explanation (System)................................................................. 137
Overview......................................................................................................................................... 138

4. Periodical Service........................................................................................ 139
Periodically Replacement Parts...................................................................................................... 140
Consumable parts........................................................................................................................... 141

5. Parts Replacement and Cleaning............................................................... 142
Preface............................................................................................................................................143
Outline..............................................................................................................................................143
Points to Note when Tightening a Screw.............................................................................................143
List of Parts..................................................................................................................................... 144
External / Internal Cover.................................................................................................................... 144
List of Main Unit................................................................................................................................ 148
Electrical Components.......................................................................................................................151
External Cover/Interior System....................................................................................................... 163
Removing the Front Cover................................................................................................................. 163
Removing the Rear Cover 1...............................................................................................................164
Removing the Left Upper Cover......................................................................................................... 168
Removing the Left Lower Cover......................................................................................................... 168
Removing the Right Front Cover........................................................................................................ 169
Removing the Right Rear Cover/Right Rear Lower Cover.................................................................... 170
Removing the Left Upper Cover......................................................................................................... 172
Removing the Right Cover Unit.......................................................................................................... 173
Removing the Multi-purpose Tray.......................................................................................................179
Removing the Delivery Tray............................................................................................................... 180
Removing the Rear Upper Cover........................................................................................................181
Removing the Upper Cover................................................................................................................182
Removing the Control Panel Unit........................................................................................................185
Original Exposure/Feed System......................................................................................................190
Removing the ADF Unit..................................................................................................................... 190
Removing the ADF Pickup Unit.......................................................................................................... 192
Removing the ADF Separation Unit.................................................................................................... 193
Removing the Scanner Unit (Back).....................................................................................................194
Removing the Copyboard Glass Unit.................................................................................................. 202
Removing the Scanner Unit (Front).....................................................................................................203
Removing the Reader Motor.............................................................................................................. 207
Removing the ADF Feed Frame......................................................................................................... 209
Removing the CIS Holder.................................................................................................................. 216
Controller System............................................................................................................................218
Removing the Wi-Fi PCB................................................................................................................... 218
Removing the Main Controller Sub Cover /Main Controller Cover......................................................... 218
Removing the HDD........................................................................................................................... 220
Removing the Main Controller Unit..................................................................................................... 220
Removing the Low-voltage Power Supply Unit.................................................................................... 225
Removing the DC Controller PCB.......................................................................................................230
Removing the Primary Transfer High-voltage PCB Unit........................................................................231
Removing the Secondary Transfer High-voltage PCB/Developing High-voltage PCB Unit...................... 234
Removing the Fax Unit...................................................................................................................... 235

Removing the Fax Speaker Unit......................................................................................................... 236
Removing the Control Panel Unit........................................................................................................237
Removing the Control Panel CPU PCB/LCD Unit/LED PCB................................................................. 241
Removing the All-night Power Supply PCB Unit...................................................................................246
Laser Exposure System.................................................................................................................. 248
Removing the Laser Scanner Unit...................................................................................................... 248
Image Formation System................................................................................................................ 253
Removing the Waste Toner Container................................................................................................ 253
Removing the Toner Container (Y/M/C/Bk)......................................................................................... 253
Removing the Drum Unit (Y/M/C/Bk).................................................................................................. 254
Removing the ITB Unit.......................................................................................................................257
Removing the Registration Patch Sensor Unit..................................................................................... 262
Removing the Secondary Transfer Outer Roller Unit............................................................................263
Removing the Secondary Transfer Outer Roller Guide Unit..................................................................265
Removing the Registration Drive Unit................................................................................................. 269
Removing the Main Drive Unit............................................................................................................271
Removing the Hopper Unit (Y/M/C/Bk)................................................................................................272
Removing the ITB Pressure Release Switch....................................................................................... 274
Removing the Bottle Drive Unit (Y/M/C/Bk)......................................................................................... 275
Removing the Toner Bottle Mount (Y/M/C/Bk)..................................................................................... 277
Fixing System..................................................................................................................................284
Removing the Fixing Assembly.......................................................................................................... 284
Removing the Fixing Pressure Roller Unit........................................................................................... 285
Removing the Fixing Drive Unit.......................................................................................................... 289
Pickup/Feed System....................................................................................................................... 291
Removing the Delivery/Reverse Unit.................................................................................................. 291
Removing the Right Inner Cover Unit..................................................................................................292
Removing the Cassette Pickup Roller/Cassette Separation Roller/Cassette Feed Roller........................ 293
Removing the Multi-purpose Tray Pickup Roller /Multi-purpose Tray Separation Roller /Multipurpose
Tray Feed Roller............................................................................................................... 298
Removing the Registration/Pickup Unit............................................................................................... 310
Procedure after replacement When images with uneven density (white spots) are generated after
replacing the Registration Unit........................................................................................................ 314
Removing the Cassette 1 Lifter Drive Unit...........................................................................................320
Removing the Cassette 1 Pickup Drive Unit........................................................................................ 323
Cleaning Procedure.........................................................................................................................326
Cleaning the Copyboard Glass/Reading Glass.................................................................................... 326
Cleaning the Dustproof Glass.............................................................................................................326
Cleaning when installing/removing the ITB Unit................................................................................... 327
Cleaning the Registration Patch Sensor Unit....................................................................................... 328
Cleaning the Registration Front Guide................................................................................................ 330
Cleaning the Registration Roller/Pre-registration Roller........................................................................331
Cleaning the Secondary Transfer Guide............................................................................................. 332
Cleaning the Fixing Inlet Guide...........................................................................................................333

6. Adjustment................................................................................................... 335
Pickup Feed System....................................................................................................................... 336
Image Position Adjustment ................................................................................................................336
Original Feed System......................................................................................................................338
Skew Adjustment (at Stream Scanning of Originals)............................................................................ 338

Right Angle Adjustment (Slant Adjustment)......................................................................................... 343
Light intensity adjustment...................................................................................................................344
Automatic Adjustment of the Stream Reading Position (Automatic Adjustment of the Reading
Position at ADF Reading)............................................................................................................... 345
White Level Adjustment..................................................................................................................... 345
Front/Back Side Difference Correction Adjustment.............................................................................. 345
Parallelogram Correction................................................................................................................... 345
Angle Correction (Front / Back).......................................................................................................... 346
Image Position Adjustment (at Stream Scanning of Originals).............................................................. 346
Original Exposure System...............................................................................................................352
Adjustment of the White Plate............................................................................................................ 352
Actions at Parts Replacement......................................................................................................... 355
Main Controller PCB..........................................................................................................................355
DC Controller PCB............................................................................................................................ 357
Hard Disk..........................................................................................................................................358
Registration Patch Sensor Unit...........................................................................................................361
After Replacing the Copyboard Glass................................................................................................. 361
After Replacing the Scanner Unit (Front).............................................................................................362
After Replacing the Scanner Unit (Back)............................................................................................. 362
Control Panel Unit............................................................................................................................. 364

7. Troubleshooting...........................................................................................366
List of Initial Check Items................................................................................................................ 367
Test Print.........................................................................................................................................368
Overview.......................................................................................................................................... 368
Steps to Select a Test Print Type....................................................................................................... 368
How to use the test print.................................................................................................................... 369
List of Troubleshooting Items.......................................................................................................... 372
Image Failure....................................................................................................................................372
Category: Malfunction........................................................................................................................378
Startup System Failure Diagnosis................................................................................................... 385
Overview.......................................................................................................................................... 385
Basic Flow........................................................................................................................................ 386
Control Panel LED Check Flow.......................................................................................................... 388
5 V Power Supply Assembly Check Flow............................................................................................ 390
12 V Power Supply Assembly Check Flow.......................................................................................... 393
Controller Self Diagnosis.................................................................................................................395
Boot Method..................................................................................................................................... 395
Diagnosis Result............................................................................................................................... 396
Limitations........................................................................................................................................ 398
Debug Log.......................................................................................................................................399
Function Overview.............................................................................................................................399
Saving and Collecting Debug Logs..................................................................................................... 402
Service Mode Relating to Debug Logs................................................................................................ 415

8. Error/Jam/Alarm........................................................................................... 417
Overview......................................................................................................................................... 418
Location Code...................................................................................................................................418
Pickup Position Code.........................................................................................................................418

Pickup size....................................................................................................................................... 418
Points to Note When Clearing MN-CON .............................................................................................420
Points to Note When Clearing HDD.................................................................................................... 420
Error Code.......................................................................................................................................421
Error Code Details.............................................................................................................................421
Jam Code........................................................................................................................................514
Jam Type..........................................................................................................................................514
Jam screen display specification........................................................................................................ 515
Host Machine / Cassette....................................................................................................................515
ADF / Reader....................................................................................................................................518
UniFlow (Advanced Scanning)........................................................................................................... 519
Staple Finisher.................................................................................................................................. 520
Jam Code Details..............................................................................................................................521
Alarm Code..................................................................................................................................... 522
Alarm Code Details........................................................................................................................... 522

9. Service Mode................................................................................................ 564
Overview......................................................................................................................................... 565
Basic Operations...............................................................................................................................565
SITUATION Mode............................................................................................................................. 568
Security Support................................................................................................................................573
Service Mode Backup........................................................................................................................577
Output of Service Print Data...............................................................................................................577
COPIER (Service mode for printer).................................................................................................582
DISPLAY (State display mode)...........................................................................................................582
I/O....................................................................................................................................................613
ADJUST (Adjustment mode).............................................................................................................. 614
FUNCTION (Operation / inspection mode).......................................................................................... 718
OPTION (Specification setting mode)................................................................................................. 740
TEST (Print test mode)...................................................................................................................... 862
COUNTER (Counter mode)............................................................................................................... 869
FEEDER (ADF service mode).........................................................................................................895
ADJUST (Adjustment mode).............................................................................................................. 895
FUNCTION (Operation / inspection mode).......................................................................................... 899
OPTION (Specification setting mode)................................................................................................. 900
SORTER (Service mode for delivery options).................................................................................902
ADJUST (Adjustment mode).............................................................................................................. 902
OPTION (Specification setting mode)................................................................................................. 902
BOARD (Option board setting mode)..............................................................................................903
OPTION (Specification setting mode)................................................................................................. 903
FAX (FAX service mode).................................................................................................................904
Overview.......................................................................................................................................... 904
Setting of Bit Switch (SSSW)..............................................................................................................907
Setting of Menu Switch (MENU)......................................................................................................... 918
Setting of Numeric Parameter (NUMERIC Param.).............................................................................. 919
Setting of Destination (TYPE).............................................................................................................921
Setting of Printer Functions (PRINTER).............................................................................................. 922
IPFAX Setting................................................................................................................................... 924
Initialization of Set Value (CLEAR)..................................................................................................... 925
Test Mode (TEST).............................................................................................................................925

Service Report (REPORT)................................................................................................................. 929

10. Installation.................................................................................................. 933
How to Utilize This Installation Procedure.......................................................................................934
Symbols........................................................................................................................................... 934
Installation of the host machine ......................................................................................................935
Setting the Dehumidification Switch.................................................................................................... 935
Operation when using uniFLOW Online.............................................................................................. 935
Installing the IC Card Reader............................................................................................................. 935
IC Card Reader BOX-D1.................................................................................................................950
Points to Note at Installation...............................................................................................................950
Installation Outline Drawing................................................................................................................950
Checking the Contents...................................................................................................................... 951
Essential Items to Be Performed Before Installation.............................................................................951
Installation Procedure........................................................................................................................ 952
Connecting the Power Supply............................................................................................................ 968
Copy Card Reader-F1/Copy Card Reader Attachment-B4............................................................. 969
Points to Note at Installation ..............................................................................................................969
Checking the Contents...................................................................................................................... 969
Installation Outline Drawing................................................................................................................970
Essential Items to Be Performed Before Installation.............................................................................970
Installation Procedure........................................................................................................................ 970
Setting after Installation..................................................................................................................... 981
Serial Interface Kit-K3, Copy Control Interface Kit-A1.....................................................................983
Points to Note at Installation...............................................................................................................983
Installation Outline Drawing................................................................................................................983
Checking the Contents...................................................................................................................... 983
Essential Items to Be Performed Before Installation.............................................................................984
Installation Procedure........................................................................................................................ 984
NFC KIT-E1/E2............................................................................................................................... 995
Points to Note at Installation...............................................................................................................995
Essential Items to Be Performed Before Installation.............................................................................995
Points to Note When Turning ON/OFF the Main Power........................................................................995
Installation Outline Drawing................................................................................................................995
Checking the Contents ......................................................................................................................996
Installation procedure........................................................................................................................ 998
Setting after Installation....................................................................................................................1015
Connection Kit-A2/A3 for Bluetooth LE......................................................................................... 1016
Points to Note at Installation.............................................................................................................1016
Essential Items to Be Performed Before Installation........................................................................... 1016
Points to Note When Turning ON/OFF the Main Power...................................................................... 1016
Installation Outline Drawing..............................................................................................................1016
Checking the Contents.....................................................................................................................1017
Removing the Covers...................................................................................................................... 1018
Installation Procedure...................................................................................................................... 1023
Installing the Covers........................................................................................................................ 1038
Affixing the Label.............................................................................................................................1041
Setting after Installation....................................................................................................................1042
Super G3 FAX Board-AT1.............................................................................................................1044
Points to Note at Installation.............................................................................................................1044
Checking the Contents.....................................................................................................................1044
Installation Outline Drawin................................................................................................................1044
Essential Items to Be Performed Before Installation........................................................................... 1044
Installation Procedure...................................................................................................................... 1045
Checking the Operation................................................................................................................... 1051
Super G3 2nd Line Fax Board-AT1 ..............................................................................................1053
Points to Note at Installation.............................................................................................................1053
Checking the Contents.....................................................................................................................1053
Installation Outline Drawin................................................................................................................1054
Essential Items to Be Performed Before Installation........................................................................... 1054
Installation Procedure...................................................................................................................... 1054
Checking the Operation................................................................................................................... 1064
APPENDICES..................................................................................................1066
Service Tools.................................................................................................................................1067
List of Special Tools.........................................................................................................................1067
Solvents and Oils............................................................................................................................ 1067
General Circuit Diagram................................................................................................................1068
Host machine.................................................................................................................................. 1069
Control Panel.................................................................................................................................. 1080
ADF................................................................................................................................................1081
Software Counter Specifications .................................................................................................. 1082
Removal........................................................................................................................................ 1088
Overview........................................................................................................................................ 1088
Work Procedure.............................................................................................................................. 1088
List of Service Modes That Can Be Restored............................................................................... 1091