Canon NP6330 Service Manual page 416

3 E002, E003
Step
Cause
Thermistor
(TH1; connector
or open circuit)
Thermistor
Thermistor
Operating
environment
Thermistor
DC controller
PCB
COPYRIGHT © 1997 CANON INC.
Download Service Manual And Resetter Printer at http://printer1.blogspot.com
Checks
1
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
2
Is the wiring from J109 on the DC
controller PCB through the relay
connector (J34) to the thermistor
normal?
3
Is the thermistor in even contact
with the upper fixing roller?
4
Clean the contact face of the ther-
mistor. Is the problem corrected?
5
Does the problem occur only
when the power is turned on for
the first time as in the morning?
6
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.
11-75