Canon LBP253 SM Manual page 6

Removing the Main Drive Unit..............................................................................................................91
Removing the Duplex Drive Unit...........................................................................................................93
Removing the Cassette Pickup Solenoid...............................................................................................93
Removing the Multi-purpose Solenoid.................................................................................................. 94
Removing the Duplex Reversal Solenoid.............................................................................................. 94
Removing the Wireless LAN PCB.........................................................................................................95
Laser Exposure System.................................................................................................................... 96
Removing the Laser Scanner Unit........................................................................................................ 96
Image Forming System..................................................................................................................... 97
Removing the Transfer Roller...............................................................................................................97
Removing the Registration Unit............................................................................................................ 97
Fixing System....................................................................................................................................98
Removing the Fixing Unit.....................................................................................................................98
Paper Pickup/Transport/Output System..........................................................................................100
Removing the Cassette Pickup Roller................................................................................................. 100
Removing the Cassette Separation Pad..............................................................................................100
Removing the Multi-purpose Pickup Roller.......................................................................................... 101
Removing the Multi-purpose Separation Pad.......................................................................................101
5. Troubleshooting...........................................................................................103
Trouble Shooting............................................................................................................................. 104
Test Pages....................................................................................................................................... 104
Confirming nip width.......................................................................................................................... 106
Version Upgrade............................................................................................................................. 108
Overview.......................................................................................................................................... 108
Version Upgrade Using UST.............................................................................................................. 108
Upgrading via Internet....................................................................................................................... 112
Corrective Actions........................................................................................................................... 114
Image Defects...................................................................................................................................114
Debug Log ......................................................................................................................................120
Function Overview.............................................................................................................................120
Conditions for collecting logs..............................................................................................................120
Collection procedure..........................................................................................................................120
6. Error/Jam/Alarm........................................................................................... 122
Error Codes..................................................................................................................................... 123
Overview.......................................................................................................................................... 123
Error Codes...................................................................................................................................... 123
JamCode.......................................................................................................................................... 126
Alarm Code.......................................................................................................................................126
7. Service Mode................................................................................................ 128
Service Mode.................................................................................................................................. 129
Overview.......................................................................................................................................... 129
COPIER........................................................................................................................................... 133
TESTMODE......................................................................................................................................151
SERVICE REPORT...........................................................................................................................153
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