Canon CLC 1120 Service Manual page 680

Cause
------------
Copy paper
Transparency
Special backing
sheet
Multifeeder
pickup roller
Paper guide plate
Multifeeder
pickup sensor
COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Step Checks
11 Try manual copying. Does the
pickup roller of the multifeeder
start to rotate?
12 Try paper of a type recommended
by Canon. Is the problem
corrected?
13 Is the transparency of a
recommended type and placed in
the correct orientation?
14 Is the special backing sheet used
under the transparencies?
15 Is the pickup roller of the
multifeeder deformed or worn?
16 Is the operation of the multifeeder
pickup sensor (PS9) normal?
CHAPTER 13 TROUBLESHOOTING
Yes/No
NO See "Pickup fails
(multifeeder)."
YES Advise the user to use
recommended paper.
NO Advise the user to use
recommended
transparencies and to
place them correctly.
NO Instruct the user to use
the special backing
sheet.
YES Replace the multifeeder
pickup roller.
YES Check each paper guide
for foreign matter and
deformation.
NO Check the sensor lever
and wiring; if normal,
replace the sensor.
Action
13-153