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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
You can find out whether the cause of ‘E100’ has been removed or not by executing ‘EPC’
under ‘FUNC’.
24
E100
a. E100=xx01
Cause
Laser shutter
DC power supply
PCB 1 (lower)
Video controller
PCB, Laser
driver PCB
Laser exposure
system
BD unit
BD unit, Laser
driver PCB
Step
1
2
3
4
5
Checks
Is the operation of the laser shutter
normal?
Is power present at J2101 on the DC
controller PCB?
J2101-1 (+) — J2101-4 (–): 5V
J2101-8 (+) — J2101-9 (–): –8V
J2101-7 (+) — J2101-8 (–): 8V
Is there a fault in the connection
between the video controller PCB
and the laser driver PCB of the color
for which ‘E100’ is indicated?
Y (detail code: 0101) :J2106 — J1301Y
M (detail code: 0201) :J2107 — J1301M
C (detail code: 0301) :J2108 — J1301C
Bk (detail code: 0401) :J2109 — J1301K
Is the laser power normal?
Clean the light-receiving face of the
BD unit. Is the problem corrected?
Yes/No
NO
NO
YES
NO
YES
NO
Action
Replace the faulty part.
Check the wiring; if
normal, replace the DC
power supply PCB 1
(lower).
Re-connect it.
Adjust it. If output is
absent, replace the laser
unit.
End.
Replace the following
parts in the order
indicated:
• BD unit
• Video controller PCB
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