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31 March, 1997
7. TROUBLESHOOTING
7.1 TROUBLESHOOTNG PROCEDURE
7.1.1 COPY TEST
Copy test
SET DOCUMENT
"QUICK: KEYPAD"
No
Yes
"DIAL KEYPAD"
Yes
Press START/COPY twice
then copying starts
Document exits
without scanning
No
Printing paper exits
without printing
No
White copy or
Black copy
No
Horizontal white lines?
No
Vertical black lines?
No
Copy test end
No
Yes
Yes
Check for something interfering
FCU-OPU harness check
with the SB5 sensor actuator
Yes
Normal?
No
Remove object
Yes
Yes
Ink nozzle test
Yes
No
Clean CIS roller
Yes
Clean CIS roller and CIS
Dark copy as
a whole
Adujust slice level
Replace CIS
(bit sw9-5. A, B)
H905T001.vsd
7-1
TROUBLESHOOTNG PROCEDURE
Check SB1, SB2
No
Normal?
Replace SB1, SB2
Yes
Check SB1, SB2 wiring
No
Normal?
Replace OPU (PCB)
Yes
No
Replace FCU-OPU
Normal?
harness
Yes
Replace FCU
Check FCU-CIS
flat cable connection
No
Normal?
Yes
Set flat cable correctly
Replace CIS
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