E017; E018 - Canon 1000 Service Manual

9

E017

Cause Step
Duplexing
feeding drive
assembly
Duplexing unit
feeding motor
(M19)
DC controller
PCB
10

E018

Cause Step
Polishing/Oil
removing motor
drive system
Polishing/Oil
removing motor
(M15)
DC controller
PCB
COPYRIGHT © 2001 CANON INC.
Checks
1 Is there a fault (e.g., excess load) in
the roller drive assembly driven by
the duplexing unit feeding motor?
2 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?
Checks
1 Push the one-way clutch lever to
rotate the polishing roller. Is there
any fault (e.g., excess load)?
2 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?
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
Yes/No
YES
YES
NO
Yes/No
YES
YES
NO
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.
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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