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COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
9
E017
10
E018
Cause
Duplexing
feeding drive
assembly
Duplexing unit
feeding motor
(M19)
DC controller
PCB
Yes/No
YES
YES
NO
Checks
Is there a fault (e.g., excess load) in
the roller drive assembly driven by
the duplexing unit feeding motor?
Set the meter to the 24VDC range.
Select two-sided mode, and press
the Start key; does the voltage
between J2223B-8 (+) and J2223B-9
(–) on the DC controller PCB change
from 5 V to 0 V?
Step
1
2
Action
Remove the cause of the
fault.
Check the wiring from the
DC controller to the
duplexing feeding motor; if
normal, replace the
duplexing feeding motor.
Replace the DC controller
PCB.
Cause
Polishing/Oil
removing motor
drive system
Polishing/Oil
removing motor
(M15)
DC controller
PCB
Step
1
2
Checks
Push the one-way clutch lever to
rotate the polishing roller. Is there
any fault (e.g., excess load)?
Set the meter to the 24VDC range,
and select manual feed mode. When
the Start key is pressed, does the
voltage between J2218A-11 (reversal
signal) and J2218A-12 on the DC
controller PCB change from 7 V to 0
V?
Yes/No
YES
YES
NO
Action
Remove the cause of the
fault.
Check the wiring from the
DC controller to the
polishing/oil removing
motor; if normal, replace
the polishing/oil removing
motor.
Replace the DC controller
PCB.
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