
Removing the Secondary Transfer High Voltage Unit...........................................................................266
Removing the AC Driver PCB............................................................................................................ 268
Removing the Control Panel...............................................................................................................269
Removing the All-night Power Supply PCB......................................................................................... 274
Removing the Developing High-Voltage PCB (YMC)/Charging High-Voltage PCB (YMC).......................275
Laser Control System......................................................................................................................278
Cleaning the Dustproof Glass.............................................................................................................278
Removing the Dustproof Glass Cleaning Pad......................................................................................279
Removing the Laser Scanner Unit...................................................................................................... 279
Image Formation System................................................................................................................ 283
Removing the Toner Filter..................................................................................................................283
Removing the ITB Unit.......................................................................................................................283
Cleaning the Registration Patch Sensor..............................................................................................287
Removing the Registration Patch Sensor (Front), (Middle), (Rear)........................................................288
Removing the ITB Cleaning Unit.........................................................................................................290
Removing the ITB Cleaning Blade Unit............................................................................................... 292
Installing the ITB Cleaning Blade Unit.................................................................................................293
Removing the ITB..............................................................................................................................295
Removing the Primary Transfer Roller (Bk)......................................................................................... 299
Removing the Primary Transfer Roller (C, M, Y)..................................................................................303
Removing the Secondary Transfer Inner Roller................................................................................... 307
Installing the ITB............................................................................................................................... 309
Removing the Waste Toner Container................................................................................................ 317
Pulling out the Process Unit............................................................................................................... 317
Removing the Process Unit................................................................................................................320
Installing the Process Unit..................................................................................................................321
Removing the Drum Unit....................................................................................................................325
Installing the Drum Unit......................................................................................................................326
Removing the Developing Unit........................................................................................................... 328
Installing a New Developing Unit........................................................................................................ 331
Removing the Waste Toner Feed Unit................................................................................................ 333
Removing the Secondary Transfer Roller/Secondary Transfer Separation Guide Unit............................337
Installing the Secondary Transfer Roller/Secondary Transfer Separation Guide Unit..............................339
Removing the Main Drive Unit............................................................................................................341
Removing the Toner Container Front Inner Cover................................................................................346
Removing the Hopper Unit (M)...........................................................................................................349
Removing the Hopper Unit (Y)............................................................................................................351
Removing the Hopper Unit (C)........................................................................................................... 354
Removing the Hopper Unit (Bk)..........................................................................................................357
Fixing System..................................................................................................................................360
Removing the Fixing Unit...................................................................................................................360
Removing the Film Unit......................................................................................................................361
Cleaning the Fixing Shutter Cover...................................................................................................... 365
Cleaning the Fixing Separation Guide.................................................................................................366
Cleaning the Fixing Inlet Guide...........................................................................................................367
Removing the Pressure Roller and Pressure Roller Bearing.................................................................368
Removing the 27T Gear.....................................................................................................................370
Pickup Feed System....................................................................................................................... 372
Cleaning the Secondary Transfer Guide............................................................................................. 372
Cleaning the Feed Contact Guide.......................................................................................................373
Cleaning the Registration Roller......................................................................................................... 373
Contents
iv