Canon PC1000s Service Manual page 320

CHAPTER 7 TROUBLESHOOTING
Main cause
E002
sec or more continuously.
About 10 sec or later after power-onlstart of printing, the main ther-
mistor detects less than 120°C/248"F for 1 sec or more continu-
000
During printing, the main thermistor detects 0°C/320F or lower for
1
ously.
After power-onlstart of printing, the reading of the main thermistor
does not reach the target value -15"C/11°F or higher within 75 sec.
001
About 10 sec or later after the heater is supplied with power, the sub
thermistor detects less than 75°C/1670F for 2 sec or more continu-
ously.
The fixing film unit is faulty (main therrnistor fault, sub thermistor fault, ther-
mal fuse blow, fixing heater fault). The power supply PCB is faulty. The DC
controller PCB is faulty.
During printing, the main thermistor detects less than 120°C/248"F for 1 sec
or more continuously.
Action
E003
Main cause
See
the descriptions for E003.
Action
The fixing film unit is faulty (main thermistor fault, thermal fuse blow, fixing
heater fault). The power supply PCB is faulty. The DC controller PCB is
faulty.
1. Malfunction
'lbm off the power; wait for 10 min, and turn on the power. Is the problem
corrected?
YES:
End.
2. Wiring
Is the wiring from the DC controller PCB to the fixing film unit normal?
NO: Correct the wiring.
3. Fixing film unit
Try replacing the fixing film unit. Is the problem corrected?
YES:
End.
4. Power supply PCB, DC controller PCB
Try replacing the power supply PCB. Is the problem corrected?
YES:
End.
NO: Replace the DC controller PCB.
COPYRIGHT
02002
CANON INC.
CANON PClOOOshmageCLASS DMMs REV.
1
AUG.2002