CHAPTER 11 TROUBLESHOOTING
COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-65
IV. TROUBLESHOOTING MALFUNCTIONS
A.
Troubleshooting Malfunctions
1
E000
YES/NO
NO
NO
YES
YES
NO
Cause
Thermistor
(TH1)
Heater,
Fuse (FU2)
Thermistor
(TH1)
Composite
power
supply PCB
DC control-
ler PCB
Step
1
2
3
4
Checks
Are the connection of J102 on the DC
controller PCB and the wiring to the
thermistor (TH1) normal?
Is there electrical continuity between
J207-1 and -2 on the fixing heater
side?
Replace the fixing upper unit. Is the
problem corrected?
Replace the composite power supply
PCB. Is the problem corrected?
Action
Correct the connection
of J102 on the DC
controller PCB and the
wiring to the ther-
mistor (TH1).
Check the wiring from
the composite power
supply PCB to the
fixing heater; if
normal, replace the
fixing assembly upper
unit.
End.
End.
Replace the DC
controller PCB.
2
E001
YES/NO
NO
YES
YES
NO
Cause
Thermistor
(TH1)
Thermistor
Composite
power
supply PCB
DC control-
ler PCB
Step
1
2
3
Checks
Are the connection of J102 on the DC
controller PCB and the wiring to the
thermistor (TH1) normal?
Replace the fixing assembly upper
unit. Is the problem corrected?
Replace the composite power supply
PCB. Is the problem corrected?
Action
Correct the connection
of J102 on the DC
controller PCB and the
wiring to the ther-
mistor (TH1).
End.
End.
Replace the DC
controller PCB.
Summary of Contents for NP6412
Page 6: ......
Page 12: ......
Page 34: ......
Page 46: ......
Page 48: ......
Page 92: ......
Page 144: ......
Page 176: ......
Page 178: ......
Page 192: ......
Page 194: ......
Page 220: ......
Page 222: ......
Page 256: ......
Page 258: ......
Page 282: ......
Page 284: ......
Page 286: ......
Page 384: ......
Page 388: ......
Page 414: ......
Page 424: ......
Page 430: ......
Page 432: ......
Page 434: ......
Page 484: ......
Page 492: ......
Page 502: ......
Page 506: ......
Page 516: ......
Page 599: ...PRINTED IN JAPAN IMPRIME AU JAPON ...