The Pre-Exposure Lamp Fails To Turn On; The Hopper Motor Fails To Rotate - Canon NP6330 Service Manual

CHAPTER 11 TROUBLESHOOTING
33

The pre-exposure lamp fails to turn on.

Cause Step
Pre-exposure 1
lamp (LA2)
DC controller
PCB
34

The hopper motor fails to rotate.

Cause Step
1
Hopper motor 2
(M4)
Motor driver 1 3
PCB
DC controller
PCB
11-96
Checks
Replace the pre-exposure lamp.
Does it turn on normally?
Checks
Execute '409' in service mode [4].
Does the hopper motor rotate?
Turn off the power switch, and
disconnect J206 from the motor
driver. Set the meter to the x1K
range, and measure the
resistance between J206-7 and
J206-8 on the motor side. Is it
about 63 ?
Replace the motor driver 1 PCB.
Is the problem corrected?
COPYRIGHT © 1997 CANON INC.
YES/NO
YES
NO
YES/NO
YES
NO
YES
NO
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
End.
Check the wiring from
the DC controller PCB to
the pre-exposure lamp;
if normal, replace the
DC controller PCB.
Action
See "The Add Toner
indicator fails to turn off."
Check the wiring from
J206 to the motor; if
normal, replace the
hopper motor.
End.
Replace the DC
controller PCB.