Cleaning The Patch Sensor - Canon imageRUNNER ADVANCE C5255 Series Service Manual

4
Parts Replacement and Cleaning > Image Formation System > Cleaning the Patch Sensor > Procedure
CAUTION:
• Be careful not to make mistakes when installing since there is no compatibility
between the ITB Unit of iR-ADV-C52XX series and that of iR-ADV-C50XX series.
• When installing the ITB Unit, align the ITB Unit with the 2 positions at the lead edge
of rail.
Rails
ITB unit
■ Actions after Replacement
Be sure to execute the following procedure after replacing the ITB.
1) After installing the ITB Unit, put the machine into a standby state.
2) When the machine is in a standby state, execute the following in user mode: (Settings/
Registration > Adjustment/Maintenance > Adjust Image Quality > Auto Adjust Gradation).
4 Parts Replacement and Cleaning > Image Formation System > Cleaning the Patch Sensor > Procedure

Cleaning the Patch Sensor

■ Preparations
1) Open the Front Cover, Right Lower Cover and Right Upper Cover.(Refer to page 4-104)
2) Remove the ITB Cover.(Refer to page 4-104)
3) Remove the ITB Unit.(Refer to page 4-105)
■ 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
4-107
Patch sensor
F-4-128
4-107