Canon imageRUNNER ADVANCE C5255 Series Service Manual page 421

4
Parts Replacement and Cleaning > Laser Exposure System > Removing the Laser Scanner Unit > Procedure
15) Remove the Left Rear Sub Cover.
• 1 screw
• 1 hook
4 Parts Replacement and Cleaning > Laser Exposure System > Removing the Laser Scanner Unit > Procedure
Hook
Left Rear
Sub Cover
F-4-112
■ Procedure
CAUTION:
When Replacing the Laser Scanner Unit
When removing the Laser Scanner Unit, be sure to check the serial numbers affixed on
both units and installation position of the units before operation.
Before installing the units, be sure to see the foregoing serial numbers and install each
unit to the original position.
If the unit is installed reversely, the image displacement might occur.
NOTE:
This procedure describes the removal of Bk,C Laser Scanner Unit. Go through the
same procedure for removing the M,Y Laser Scanner Unit.
1) Remove the Drum Heater.
• 1 screw
4-101
Drum heater
Screw
F-4-113
4-101