Service manual

Troubleshooting of Scanning
SM 6-67 M085/M086
Trouble –
shooting
6.6.3 PRINT OF THE SCANNING DOCUMENT IS LIGHT OR DARK
User Check
Check if the ADF or FB glass is not stained.
Possible cause and Remedy
1. Setting of white level scanning area malfunction
 Is the problem solved after setting the white level of scanning?
Yes: Set the white level scanning area. (Function code 55)
2. FB unit failure
 Is the problem solved by replacing the FB unit?
Yes: Replace the FB unit.
3. Main PCB failure
 Is the problem solved after replacing the main PCB ASSY?
Yes: Replace the main PCB ASSY.
6.6.4 VERTICAL STREAKS (WHITE OR BLACK VERTICAL
STREAKS)
User Check
Check if the ADF or FB glass is not stained.
Possible cause and Remedy
1. Setting of white level scanning area malfunction
 Is the problem solved after setting the white level of scanning?
Yes: Set the white level scanning area. (Function code 55)
2. FB unit failure
 Is the problem solved by replacing the FB unit?
Yes: Replace the FB unit.