Canon 1130 Service Manual page 719

CHAPTER 13 TROUBLESHOOTING
47 The developing assembly fails to be locked in position.
Cause
Developing
assembly locking
motor (PM1,
PM2, PM3, PM4)
Cam, foreign
matter, pressure
leaf spring
Gear, foreign
matter
DC driver PCB,
CPU PCB
13-136
COPYRIGHT © 2002 CANON INC.
Step Checks
1 Does each developing assembly
motor operate?
2 Remove the developing assembly
drive assembly. Does the cam
operate smoothly? Is the lever
spring deformed? Is there foreign
matter?
3 Remove the developing assembly
locking drive assembly. Is the gear
chipped? Is there foreign matter?
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
Yes/No Action
NO Check the connectors
and wiring; if normal,
replace the motor.
NO Replace the cam, replace
the leaf spring, or
remove the foreign
matter.
YES Replace the gear, or
remove the foreign
matter.
NO Replace the DC driver
PCB or the CPU PCB.
(After replacement,
execute the work under
II. H. 10. or II. H. 1.)