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IV. TROUBLESHOOTING MALFUNCTIONS
A. Troubleshooting Malfunctions
1. E000
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
10-63
CHAPTER 10 TROUBLESHOOTING
Checks
Disconnect the connector (J4) of
the fixing heater, and press the
power switch while holding down
the service mode switch. (This
clears E000; about 2 sec later,
the power switch turns off
automatically. Is the connection of
J47 (4-pin connector near the rear
side plate fixing assembly)
connected properly?
Let the fixing assembly cool
sufficiently, and disconnect J47. Is
the resistance between J47-1 and
-2 on the thermistor side about
1.4 M and resistance between
J47-3 and -4 about 3.7 M ?
Is electrical continuity present
between J4-1 and -2?
Replace the upper fixing unit. Is
the problem corrected?
Replace the fixing heater driver
PCB. Is the problem corrected?
Cause
J47
(relay
connector to
thermistor)
Thermistor
Heater
Thermistor
Fixing heater
driver PCB
DC controller
PCB
Step
1
2
3
4
5
Results
NO
NO
NO
YES
YES
NO
Action
Re-connect it.
Replace the fixing upper
unit.
Replace the fixing upper
unit.
End.
End.
Replace the DC
controller PCB.