7
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PREVENTIVE MAINTENANCE (PM)
7 - 33
7.6.10 Image quality control unit
Fig. 7-34
* J1: Image quality sensor, J2: Sensor shutter, J3: Image position aligning sensor
Clean the image quality sensor, image position aligning sensor (Front/Center/Rear) and the
sensor shutter when replacing the transfer belt cleaning blade and the blade seal, or the transfer
belt itself.
Items to check Cleaning
Lubrica
tion/
Coating
Replacement
Operation
check
Parts
list
<P-I>
(x 1,000
sheets)
(x 1,000 drive
counts)
J1 Image quality sensor A R R 6-6
J2 Sensor shutter B R R 6-28
J3 Image position aligning
sensor
(Front/Center/Rear)
ARR6-5
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