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CHAPTER 13 TROUBLESHOOTING
13-88
COPYRIGHT
©
1999 CANON INC. CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
15 E030
Step
1
2
Action
Check the wiring from
the DC controller PCB
to the total copy counter;
if normal, replace the
total copy counter.
Replace the total copy
counter.
Replace the DC
controller PCB.
Checks
Turn off the power switch, and disconnect
J03 from the DC controller PCB. Set the
meter range to × 1KW, and measure the
resistance between J503-B12 and J503-
B13. Is it about 500W?
Connect J503 to the DC controller PCB,
and turn on the power switch; then, set the
meter range to 30 VDC.
Does the voltage of J503-B13 on the DC
controller change from about 24 to about
0 and then to about 24 V when the Copy
Start key is pressed?
Yes/No
NO
YES
NO
Cause
Total copy
counter
Total copy
counter
DC controller
PCB
16 E031
Step
1
2
Action
Check the wiring from
the DC controller PCB
to the total copy counter;
if normal, replace the
total copy counter.
Replace the total copy
counter.
Replace the DC
controller PCB.
Checks
Turn off the power switch, and disconnect
J503 of the DC controller PCB. Set the
meter range to × 1KW, and measure the
resistance between J503-B14 and J503-
B15. Is it about 500W?
Connect J503 to the DC controller PCB,
and turn on the power; then, set the meter
to the 30 VDC range. Does the voltage of
J503-B15 on the DC controller. Does it
change from about 24 to about 0 and then
to about 24 V when the Copy Start key is
pressed?
Yes/No
NO
YES
NO
Cause
Printer counter
Total copy
counter
DC controller
PCB
17 E032
Step
1
2
Action
Connect the accessory
securely.
Replace the DC
controller PCB.
Correct the accessory.
Checks
Is the copy data controller or the NE
controller connected securely?
Replace the copy data controller or the
Remote Diagnostic Device II. Is the
problem corrected?
Yes/No
NO
NO
YES
Cause
Connector
DC controller
PCB
Copy data
controller,
Remote
Diagnostic
Device II