Canon imageRUNNER ADVANCE C5051 Series Service Manual page 355

4
Parts Replacement and Cleaning > Image Formation System > Remove the Patch Sensor (front,center,rear) > Procedure
Cleaning the Patch Sensor
■ Preparations
1) Open the Front Cover, Right Lower Cover and Right Upper Cover.
2) Remove the ITB Cover.
3) Remove the ITB Unit.
■ Procedure
1) While pushing the shutter, clean the surface of Patch Sensor with a cotton swab moistened
with water and tightly wrung by wiping it in one direction. After cleaning, make sure that
there is no toner contamination on the sensor surface.
CAUTION:
• Do not use the alcohol since it melts the sensor window and causes while turbidity.
• Do not dry-wipe it since the sensor window is charged and attracts the toner.
Patch sensor shutter
4 Parts Replacement and Cleaning > Image Formation System > Remove the Patch Sensor (front,center,rear) > Procedure
Remove the Patch Sensor (front,center,rear)
■ Preparations
1) Open the Front Cover, Right Lower Cover and Right Upper Cover.
2) Remove the ITB Cover.
3) Remove the ITB Unit.
4) Remove the Process Unit.
■ Procedure
1) Release the hook and remove the Shutter of the sensor.
• 2 Claws
Patch sensor
F-4-115
Shutter
Claw
Hook
4-89
F-4-116
4-89