E001; E002, E003 - Canon NP6218 Service Manual

CHAPTER 10 TROUBLESHOOTING

2. E001

Cause Step
Thermistor
Fixing heater
driver PCB
DC controller
PCB

3. E002, E003

Cause Step
Wiring
DC controller
PCB
Fixing heater
driver PCB
10-64
Checks
1 Disconnect the connector (J4) of
the fixing heater, and press the
power switch while holding down
the service mode switch. (This
clears E001; about 2 sec later,
the power switch turns off
automatically.) Let the fixing
assembly cool sufficiently; then,
disconnect J4. Is the resistance
between J47-1 and -2 about 0
and the resistance between J47-3
and-4 about 0 ?
2 Replace the fixing heater driver
PCB. Is the problem corrected?
Checks
1 Disconnect the connector (J4) of
the fixing heater, and press the
power switch while pressing the
service mode switch. (This clears
the E code; about 2 sec later, the
power switch turns off
automatically.) Turn on the power
switch; is E000 indicated?
2 Is the wiring between J304 and
J47 on the DC controller PCB
proper?
3 Replace the DC controller PCB. Is
the problem corrected?
COPYRIGHT © 1997 CANON INC.
Results
YES
YES
NO
Results
YES
NO
YES
NO
CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
Replace the fixing upper
unit.
End.
Replace the DC
controller PCB.
Action
See the descriptions
under "E000."
Correct the wiring.
End.
Replace the fixing heater
driver PCB.