Canon imageCLASS LBP325dn Service Manual page 7

4. Periodical Service........................................................................................ 117
Periodically Replaced Parts............................................................................................................ 118
Consumable Parts...........................................................................................................................119
Periodical Service............................................................................................................................120
5. Parts Replacement and Cleaning............................................................... 121
Parts List......................................................................................................................................... 122
Major Units....................................................................................................................................... 122
Electrical Components List.................................................................................................................122
Removing from the connection equipment......................................................................................125
Disengaging the Paper Feeder...........................................................................................................125
External Cover System....................................................................................................................127
Removing the Rear Cover Unit...........................................................................................................127
Removing the Cartridge..................................................................................................................... 127
Removing the Right Cover Unit.......................................................................................................... 129
Removing the Left Cover................................................................................................................... 133
Removing the Upper Cover Unit......................................................................................................... 136
Removing the Cartridge Cover........................................................................................................... 137
Controller System............................................................................................................................140
Removing the Controller Cover.......................................................................................................... 140
Removing the Main Controller PCB.................................................................................................... 140
Removing the Controller Box..............................................................................................................144
Removing the DC Controller PCB.......................................................................................................146
Removing the Fixing Power Supply PCB.............................................................................................146
Removing the Low Voltage Power Supply Unit.................................................................................... 149
Removing the High Voltage Power Supply PCB.................................................................................. 149
Removing the Control Panel Unit........................................................................................................150
Removing the Control Panel Unit Key PCB......................................................................................... 151
Removing the Main Fan.....................................................................................................................152
Removing the Sub Fan...................................................................................................................... 153
Laser Exposure System.................................................................................................................. 155
Removing the Laser Scanner Unit...................................................................................................... 155
Image Formation System................................................................................................................ 157
Removing the Transfer Roller Unit......................................................................................................157
Pickup Feed Delivery System......................................................................................................... 159
Removing the Registration Unit.......................................................................................................... 159
Removing the Main Drive Unit............................................................................................................ 162
Removing the Cassette Pickup Unit....................................................................................................165
Removing the Cassette Separation Roller Unit.................................................................................... 167
Removing the Multi-purpose Tray Pickup Roller.................................................................................. 168
Removing the Multi-purpose Tray Separation Pad............................................................................... 169
Fixing System..................................................................................................................................172
Removing the Fixing Assembly.......................................................................................................... 172
Removing the Main Motor.................................................................................................................. 173
6. Adjustment................................................................................................... 177
Actions at Parts Replacement......................................................................................................... 178
Before Replacing the Main Controller PCB..........................................................................................178
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