Canon CLC 1130, Service Manual

Page: 678 / 965

COPYRIGHT © 2002 CANON INC. CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
13-103
CHAPTER 13 TROUBLESHOOTING
9 E016
Cause
Cleaner blade
reciprocating
motor (M7)
DC driver PCB,
CPU PCB
Action
Check the wiring from
J1028 to the motor; if
normal, replace the
motor.
Replace the DC driver
PCB or the CPU PCB.
(After replacement,
execute the work under
II. H. 10. or II. H. 1.)
Step
1
Yes/No
YES
NO
Checks
Set the meter range to 30 VDC, and
measure the voltage between
J1028-3 (+; CBRCMA) and J1028-
1 (-; CBRCMB) on the DC driver
PCB. Does it change from about 0
to about 24 V at specific timing
when the
Start key is pressed?
10 E017
Cause
------------
Duplexing unit
drive assembly
DC fuse PCB
Duplexing motor
(M14)
DC driver PCB,
CPU PCB
Action
Go to step 4.
Check the duplexing
unit for overload.
Check the voltage
between J934-1 and -8
on the DC fuse PCB; if
not 24 V, replace the DC
fuse PCB.
Check the wiring from
J1029 to the duplexing
motor; if normal, replace
the duplexing motor.
Replace the DC driver
PCB or the CPU PCB.
(After replacement,
execute the work under
II. H. 10. or II. H. 1.)
Step
1
2
3
4
Yes/No
YES
YES
NO
YES
NO
Checks
Does the duplexing motor rotate at
specific timing during copying?
Does the duplexing motor start to
rotate at specific timing during
copying operation?
Is there 24 V between J364-1
and -2 of the duplexing motor?
Set the meter range to 5 VDC, and
measure the voltage between
J1029-2 (+; DUPMON) and J1029-
3 (-; GND) on the DC driver PCB.
Does it change from about 0 to
about 5 V when the
Start key is
pressed and the duplexing motor
starts to rotate?