Canon GP605 Service Manual page 675

2 E001
Cause Step
SSR
(short circuit)
Thermistor
(TH1/TH2)
DC controller
PCB
3 E002
4 E003
Cause Step
Main thermistor
(TH1; mounting)
Main thermistor
(TH1; dirt)
Main thermistor
(TH; faulty)
DC controller
PBC
COPYRIGHT © 1999 CANON INC.
1 Keep the power switch off to cool the
upper fixing roller sufficiently; during this
time, check each thermistor for dirt on the
surface, mounting, and connection.
Turn on the power switch, and clear
E001; then, turn off and then on the
power switch.
Select COPIER>DISPLAY>ANALOG in
service mode. Are the readings of both
FIX-C and FIX-E 200°C or higher?
2 Replace the thermistor. Is the problem
corrected?
1 Turn on the power switch, and clear
E002/E003; then, turn off and then on the
power switch. Is any of the following
true?
• The fixing heater fails to operate.
• E002 or E003 is indicated.
2 Is the contact of the connector on the DC
controller PCB and the connectors inside
the fixing assembly good? Further, is the
wiring from the thermistor to the DC
controller PCB good?
3 Is the thermistor in even contact with the
upper fixing roller?
4 Clean the contact face of the thermistor. Is
the problem corrected?
5 Replace the thermistor. Is the problem
corrected?
6 Replace the heater. Is the problem
corrected?
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Checks
Checks
Yes/No Action
YES Replace the SSR.
YES End.
NO Replace the DC
controller PCB.
Yes/No Action
YES See the descriptions for
the item in question.
NO Correct the
connections.
NO Mount the thermistor
properly.
YES End.
YES End.
YES End.
NO Replace the DC
controller PCB.
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