Canon CLC 1120 Service Manual page 681

CHAPTER 13 TROUBLESHOOTING
2 Registration Feeding Assembly
Cause
Copy paper
Transparency
Pre-registration
roller 1/2 drive
assembly,
registration roller
drive assembly
Registration roller
Attraction
Attraction roller
Paper guide plate
Pre-registration
sensor,
transparency
sensor,
registration sensor
13-154
Step Checks
1 Is the copy paper curled or wavy?
2 Try paper of a type recommended
by Canon. Is the problem
corrected?
3 Is the transparency of a
recommended type and placed in
the correct orientation?
4 Do the pre-registration roller 1/2
drive assembly and the registration
roller drive assembly operate
normally?
5 Is the registration roller deformed
or worn?
6 Is the jam paper attracted to the
transfer drum?
7 Is the attraction roller deformed or
worn?
8 Is the operation of each sensor
(PS30, PS69, PS70) of the
registration feeding assembly
normal?
COPYRIGHT © 1999 CANON INC. CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No Action
YES Replace the paper.
Advise the user on the
correct method of
storing paper.
YES Advise the user to use
recommended paper.
NO Advise the user to use
recommended
transparencies and to
place them correctly.
NO See "The registration
roller fails to rotate."
YES Replace the registration
roller.
NO See "Attraction fails."
YES Replace the deformed or
worn roller.
YES Check each paper guide
plate for foreign matter
and deformation.
NO Check the sensor lever
and wiring; if normal,
clean or replace the
sensor.