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