Canon CLC 1130, Service Manual

Page: 297 / 965

CHAPTER 7 PICK-UP / FEEDING SYSTEM
7-34
COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.1 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
V. TRANSFER DRUM
A. Outline
The transfer drum is constructed as shown in Figure 7-501.
The transfer drum keeps paper against the transfer drum sheet using static charges, and sends it
to the fixing assembly after transfer (maximum of four times).
Item Description
Transfer rum locking motor (PM5) Stepping motor used to lock and unlock the transfer
drum unit to and from the photosensitive drum by the
work of a cam (remains locked as long as the transfer
drum is rotating).
Drum motor (M2) Used to drive the transfer drum by way of the
photosensitive drum.
Main motor (M4) Drives the registration roller and the attraction roller.
Transfer drum cleaner locking motor (PM6) Stepping motor used to lock and unlock the transfer
drum cleaner.
Attraction/transfer locking cam motor (PM7) Stepping motor used to drive the attraction brush,
transfer blade, and push-on brush.
Transfer drum cleaner brush motor (M8) DC motor used to drive the transfer drum cleaner
brush.
Polishing roller motor (M9) DC motor used to drive the polishing roller.
Separation push-up solenoid (SL3) Drives the separation push-up roll.
Separation claw solenoid (SL4) Drives the separation claw.
Pre-transfer paper sensor (PS5) Detects a jam before transfer.
Post-transfer paper sensor (PS6) Detects a jam after transfer.
Separation sensor (PS7) Detects a jam in the separation assembly.
Attraction/transfer locking cam HP sensor (PS8) Detects the home position (release position) of the
attraction/transfer locking cam.
Transfer drum HP sensor (PS57) Detects the home position (release position) of the
transfer drum unit.
Transfer drum cleaner HP sensor (PS59) Detects the home position of the transfer drum cleaner
unit.
Table 7-501