Canon NP6317 Service Handbook page 49

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CHAPTER 5 OPERATION TROUBLESHOOTING
A
TROUBLESHOOTING OF MALFUNCTION
1.
"E000, E003 and E004" indication
Cause/Problem
Procedure
area
1
Thermistors
2
2.
"E001" indication
Cause/Problem
Procedure
area
1
Thermistor
2
(TH1)
DC controller
PCB
AC driver/DC
Power supply
PCB
3.
"E030" indication
Cause/Problem
Procedure
area
1
DC controller
PCB
CHAPTER 5 OPERATION TROUBLESHOOTING
Check
Cancel the indication. Open the front
cover and delivery assembly door; then,
insert a door switch actuator into the door
switch, and wedge paper into the delivery
paper sensor. Does the fixing roller heater
go ON immediately after power is
switched ON? (Check visually.)
Does the problem disappear when the ther-
mistors (TH1/2) are replaced?
Check
Cancel the E001 indication. Does the fix-
ing roller heater (H1) go ON immediately
after power is switched ON?
Does the problem disappear when the
main thermistor (TH1) is replaced?
Check
Does the total counter operate normally?
Result
Action
No
Refer to the sub-section
"Fixing roller heater
does not operate."
No
Replace the DC control-
ler PCB.
Yes
End.
Result
Action
No
Refer to the sub-section
"Fixing roller heater
does not operate."
Yes
End.
No
Replace the DC power
supply PCB or DC con-
troller PCB.
Result
Action
No
Refer to the subsection
"Counter does not oper-
ate."
Yes
Replace the DC control-
ler PCB.
5
5-1

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