Canon 1000 Service Manual page 219

e. Oil Removing Roller
In two-sided copying mode, the side of paper which has been fixed with an image comes into contact
with the transfer belt, leaving fixing oil on the belt. If the transfer belt was allowed to rotate as is, the fixing oil
would move on to the photosensitive drum, adversely affecting the next copy image (e.g., fogging).
To prevent such a problem, the oil removing roller is used to remove fixing oil from the transfer belt in
two-sided copying mode or when paper is picked up from the multifeeder.
The oil removing roller is rotated and butted against the transfer belt when the polishing/oil removing
motor (M15) rotates counterclockwise.
The oil removing roller is released as the transfer belt is moved down by the movement of the transfer
belt lifter.
Oil removing roller
Transfer belt feeding direction
Transfer belt
COPYRIGHT © 2001 CANON INC.
Figure 3-643
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATION AND TIMING
DC controller PCB
(front of copier)
J2218A-9
Polishing/oil removing
motor (M15)
3-175