Ac Power Supply Is Absent - Canon NP6218 Service Manual

CHAPTER 10 TROUBLESHOOTING

16. AC power supply is absent.

Cause Step
E code (E000, 1
E001, E002,
E003 E004)
Power plug 2
Covers 3
Main power 4
supply
5
Noise filter PCB 6
(circuit breaker)
Noise filter PCB 7
Door switch 8
(DS1)
AC harness 9
10-70
Checks
Does an E code turn on when the
power switch is turned on, and the
power switch turn off within about
2 sec?
Is the power plug connected
securely?
Are the front door and the delivery
cover closed securely?
Is the specified voltage present at
the power outlet?
Is the specified voltage present
between J1-1 and J1-2? (J1 is the
2-pin connector on the power cord
mount.)
Is the circuit breaker on the
noise filter PCB off? (Use a
meter.)
Is the specified voltage present
between J13-1 and J13-2? (J13 is
the relay connector located
between the noise filter PCB and
the door switch assembly.)
Detach the door switch (DS1),
and connect the probes of the
meter to F1 and F3 or F2 and F5
of the door switch (fastons). Is the
resistance about 0
actuator is pressed and
released?
Is the wiring between the door
switch and the composite power
supply PCB normal?
COPYRIGHT © 1997 CANON INC.
Results
YES
NO
NO
NO
YES
YES
NO
NO
when the
when
NO
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Disconnect the
connector (J4) of the
fixing heater, and turn on
the power switch while
holing down the service
mode switch to clear the
E code; then, check the
error in 'No. 108' of
service mode for a
reference to the
appropriate description.
Re-connect the power
plug.
Close the door or the
cover.
Advise the user that the
problem is not of the
copier.
Go to step 7.
Remove the cause; turn
on the circuit breaker.
Replace the noise filter
PCB.
Replace the door switch
(DS1).
Correct the wiring.