Cleaning The Separation Drum Sheet; Outline - Canon CLC 1120 Service Manual

D. Cleaning the Separation Drum Sheet

1. Outline

The transfer drum sheet uses static charges to keep and move copy paper and, as such, it is
subject to adhesion of foreign matter. The presence of foreign matter on the transfer drum sheet can
soil the back of copy paper and can lead to an attraction fault or transfer fault.
To prevent such a problem, the transfer drum sheet is cleaned as follows:
Type
Normal cleaning
(including double-sided
copying)
Special cleaning
Reference:
The copier uses a limited amount of fixing oil, and therefore is not equipped with a cleaning
mechanism operated by an oil removing roller.
Transfer drum
cleaner HP sensor
PM6
Transfer drum
cleaner locking motor
COPYRIGHT © 1999 CANON INC.
Timing
During last rotation
During last rotation after
making a specific number
of copies
Table 7-502
Transfer drum
cleaner brush motor
M8
External brush
PS59
M9
Polishing roller motor
Figure 7-506
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 7 PICK-UP / FEEDING SYSTEM
External brush/internal brush
Polishing roller
Transfer drum
Internal
brushes
Attraction/transfer
locking cam motor
Polishing roller
Cleaner
MP7
7-41