Canon imageCLASS D600s Service Manual page 289

CHAPTER 7 TROUBLESHOOTING
E003
During printing, the main thermistor detects less than 120°C for 1 sec
or more continuously.
Main cause The fixing film unit is faulty (main thermistor fault, thermal fuse blow, fix-
ing heater fault). The power supply PCB is faulty. The DC controller PCB
is faulty.
Action 1. Power supply
Turn 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:
3. Fixing film unit
Try replacing the fixing film unit. Is the problem corrected?
YES: End.
4. Power PCB, DC controller PCB
Try replacing the power PCB. Is the problem corrected?
YES: End.
NO:
E100
About 1.5 sec after the scanner drive signal output, the BDI* signal is not
detected 3 times or more for 1.0 sec.
While the laser is ON, the BD signal cycle is not as indicated for 0.5 or
more continuously.
Main cause The laser driver/BD PCB is faulty (laser activation failure, BD detection
fault). The DC controller PCB is faulty. The image processor PCB is faulty.
Action 1. Laser scanner unit
Try replacing the laser scanner unit. Is the problem corrected?
YES: End.
2. DC controller PCB, Image processor PCB
Try replacing the DC controller PCB. Is the problem corrected?
YES: End.
NO:
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COPYRIGHT © 2001 CANON INC.
Chapter7C.p65
Correct the wiring.
Replace the DC controller PCB.
Replace the image processor PCB.
CANON imageCLASS D600s/PC1060s/PC1200s/iR1200s REV. 0 SEPT. 2001
34 8/26/01, 3:48 PM