Canon np6330 서비스 매뉴얼

11-73

Cause

Thermistor
(TH1; connector
or open circuit)

Thermistor

Thermistor

Operating
environment

Thermistor

DC controller
PCB

Checks

Reset ‘E000’ using No.401 in
service mode [4].
Open the front door and the
delivery assembly to cool the
fixing roller. Does the fixing heater
turn on when the power switch is
turned on once again? (Check by
the eye. Be sure to turn off the
power switch immediately after the
check.)

Open the front door and the
delivery assembly to cool the
fixing roller. Close the front door
and the delivery assembly, and
check No.106 in service mode [1].
Has the value changed? (Be sure
to turn off the power switch after
the check.)

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 for the day?

Replace the thermistor. Is the
problem corrected?

Step

1

2

3

4

5

6

YES/NO

NO

YES

NO

YES

YES

YES

NO

Action

See “The fixing heater
fails to operate.”

Check the wiring from
J109 on the DC con-
troller PCB through the
relay connector (J34) to
the thermistor; if normal,
replace the thermistor.

Re-install it.

End.

•

Advise the user that
the operating envi-
ronment is outside
the specifications.

•

Advise the user not
to turn on the power
before the room is
warm enough.

End.

Replace the DC
controller PCB.

Download Service Manual And Resetter Printer at http://printer1.blogspot.com