Replacement procedure...................................................................................................................248
Scanner Unit...................................................................................................................................................250
Scanner Exterior........................................................................................................................................250
Scanner Upper Cover......................................................................................................................250
Scanner Right Cover.........................................................................................................................250
Scanner Front Cover.........................................................................................................................251
Scanner Left Cover...........................................................................................................................251
Exposure Glass..........................................................................................................................................252
Exposure Lamp (LED)................................................................................................................................254
Scanner Motor...........................................................................................................................................255
Lens Block...................................................................................................................................................258
Original Size Sensor.................................................................................................................................258
SIO.............................................................................................................................................................259
Scanner HP Sensor....................................................................................................................................260
DF Position Sensor.....................................................................................................................................261
Adjusting the Scanner Wire......................................................................................................................262
Scanner Wire (Front)........................................................................................................................262
Scanner position adjustment............................................................................................................267
Scanner Wire (Rear)........................................................................................................................268
Procedure for the ADF......................................................................................................................272
Procedure for the scanner................................................................................................................275
Laser Unit........................................................................................................................................................276
Laser Unit....................................................................................................................................................276
Before Replacement.........................................................................................................................277
Removing...........................................................................................................................................277
Installing a New Laser Unit..............................................................................................................278
Polygon Motor...........................................................................................................................................280
12