Canon NP6330 Service Manual page 416

3 E002, E003
Step
Cause
1
2
Thermistor
(TH1; connector
or open circuit)
3
Thermistor
4
Thermistor
5
Operating
environment
6
Thermistor
DC controller
PCB
COPYRIGHT © 1997 CANON INC.
Checks
Reset 'E002', 'E003' using No.401
in service mode [4].
Does any of the following apply
when the power switch is turned
on once again?
• The fixing heater fails to operate.
• E000
Is the wiring from J109 on the DC
controller PCB through the relay
connector (J34) to the thermistor
normal?
Is the thermistor in even contact
with the upper fixing roller?
Clean the contact face of the ther-
mistor. Is the problem corrected?
Does the problem occur only
when the power is turned on for
the first time as in the morning?
Replace the thermistor. Is the
problem corrected?
CANON NP6330 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 11 TROUBLESHOOTING
YES/NO Action
YES See the corresponding
section.
NO Re-install the thermistor.
NO Re-install it.
YES End.
YES • Advise the user that
the operating
environment is outside
the specifications.
• Advise the user not to
turn on the power
before the room is
warm enough.
YES End.
NO Replace the DC
controller PCB.
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