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COPYRIGHT
©
1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
10–43
2. E001
Thermistor (TH1,
TH2)
DC controller PCB
Triac
DC controller PCB
1
2
3
Execute service mode ‘412’ (error clear) to
clear E001. Open the front door and the top
unit, and let the fixing roller cool
sufficiently.
Turn on the power switch. Is E001 indicated
immediately after power-on?
Turn off the power switch, and disconnect
J108 and J109 on the DC controller PCB.
Connect the probes to J108-2 and J108-3
and then J109-1 and J109-2 on the harness
side. Is the resistance about 0 Ω? (After the
check, be sure to connect J108 and J109.)
Replace the power supply PCB. Is the
problem corrected?
Actions
ChecksStep
Cause
Go to step 3.
Replace the thermistor.
Replace the DC controller
PCB.
End.
Check the wiring from the
power supply PCB to the DC
controller PCB; if normal,
replace the DC controller PCB.
NO
YES
NO
YES
NO
Yes/No