Canon PC400 Service Manual page 279

5. E9
Cause
DC controller/
DC power supply PCB
Power supply
6. AC power is absent.
Cause
Power plug
Top cover,
Delivery assembly
cover
Power supply voltage
Door switch
DC controller/
DC power supply PCB
Fixing assembly
Step Checks
1 Replace the DC controller/DC
power supply PCB.
Is the problem corrected?
Step Checks
1 Is the power plug connected to
the copier and the power outlet?
2 Is 'E' code (PC420/430/FC220)
or 'JAM' (PC400/FC200)
indicated for about 0.5 sec after
the power switch is turned ON
and does the power turn OFF
thereafter?
3 Are the top cover and delivery
assembly cover closed properly?
4 Is the rated voltage present at
the power outlet?
5 Is the door switch (SW1,SW2)
normal?
6 Is the rated power supply voltage
present between J103 and J104
on the DC controller/DC power
supply PCB? (Set the meter to
the 300V AC range).
7 Replace the fixing assembly.
Is the problem corrected?
(fixing heater error temperature
detection circuit ON)
CHAPTER 4 TROUBLESHOOTING MALFUNCTIONS
YES/NO
YES End.
NO Advise the user that the
frequency of the power
supply is faulty.
YES/NO
NO Connect the power plug.
YES See 'E0'.
NO Close the top cover and
delivery assembly cover.
NO Advise the user that the
problem is not of the
copier.
NO Replace the door switch.
YES Replace the DC controller/
DC power supply PCB.
YES End.
NO Replace the DC controller/
DC power supply PCB.
Remedies
Remedies
4-3