Canon 1130 Service Manual page 678

9 E016
Cause
Cleaner blade
reciprocating
motor (M7)
DC driver PCB,
CPU PCB
10 E017
Cause
------------
Duplexing unit
drive assembly
DC fuse PCB
Duplexing motor
(M14)
DC driver PCB,
CPU PCB
COPYRIGHT © 2002 CANON INC.
Step Checks
1 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
Step Checks
1 Does the duplexing motor rotate at
specific timing during copying?
2 Does the duplexing motor start to
rotate at specific timing during
copying operation?
3 Is there 24 V between J364-1
and -2 of the duplexing motor?
4 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
pressed and the duplexing motor
starts to rotate?
CANON CLC1100/1130/1150/1160/1180 REV.2 FEB. 2002 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Yes/No
YES
NO
is pressed?
Yes/No
YES
YES
NO
YES
NO
Start key is
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.)
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.)
13-103