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COPYRIGHT
©
1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
13-113
CHAPTER 13 TROUBLESHOOTING
77 The Add Toner indicator fails to turn on.
Step
1
2
Action
Go to step 2.
1. Replace the sensor.
2. Replace the DC
controller PCB.
1. Replace the DC
controller PCB.
2. Replace the control
panel.
Checks
Is there toner inside the hopper?
Select COPIER>I/O>IP in service mode.
Move toner away from the toner sensor
(TS1) to exposure the sensor. At this
time, is bit 9 of P002 '0' (toner absent)?
Yes/No
YES
NO
YES
Cause
Toner sensor
(hopper), DC
controller PCB
DC controller
PCB, Control
panel
78 The Add Toner fails to turn on.
Step
1
2
Action
The toner inside the
hopper is not enough.
Supply toner.
1. Replace the toner
sensor inside the
hopper.
1. Replace the DC
controller PCB.
2. Replace the control
panel.
Checks
Is there toner at the rear of the hopper?
Select COPIER>I/O>IP in service mode.
At this time, is bit 9 of P002 '0' (toner
absent)?
Yes/No
NO
YES
NO
Cause
Toner
Toner sensor
(TS1)
DC controller
PCB Control
panel
79 The Control Card Set message fails to turn on.
Step
1
2
Action
Check the connector of
the CC-V for a short
circuit.
End.
Replace the DC
controller PCB.
Checks
Can copies be made without a control
card?
Replace the control panel. Does the
message turn on?
Yes/No
YES
YES
NO
Cause
CC-V
Control panel
DC controller
PCB