Canon 1000 Service Manual page 217

c. Transfer Belt Cleaning Web
The transfer belt cleaning web keeps removing dirt (toner) from the transfer belt at all times.
Depending on the timing, the web is fed about 4 mm at the end of a job when the cumulative reading of
sheet-to- sheet times reaches 524 sec.
In the case of continuous copying, on the other hand, the web is fed about 4 mm when SALT is executed
(every 100 sheets).
The rotation of the web motor is detected by the transfer belt cleaning web rotation sensor (PS10), which
monitors the clock plate on the external static eliminating roller shaft.
The length of the web is monitored by the transfer belt cleaning web length sensor (PS11) mounted to
the web feeding roller assembly. After indicating a message, the web rotation sensor (PS10) will detect faulty
rotation of the web motor if the web runs out because of continued copying, indicating 'E076' on the message
panel of the control panel.
Transfer belt cleaning web
M12
Transfer belt cleaning web motor
COPYRIGHT © 2001 CANON INC.
Figure 3-641
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. OPERATION AND TIMING
Transfer belt
Transfer belt cleaning web
length sensor (PS11)
Transfer belt cleaning web
rotation sensor (PS10)
J2218A
-7
DC controller PCB
-8
3-173