2-90
Confidential
Completely blank
All black
<User Check>
• Check that the document is not reversed.
Step Cause Remedy
1
Incorrect white level
correction data
Execute “Acquire white level data (Function
code 55)”.
2 CIS flat cable failure Replace the CIS flat cable.
3 CIS unit failure Replace the CIS unit.
4 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Install all the latest firmwares.
Step Cause Remedy
1
Incorrect white level
correction data
Execute “Acquire white level data (Function
code 55)”.
2 CIS flat cable failure Replace the CIS flat cable.
3 CIS unit failure Replace the CIS unit.
4 Main PCB failure Replace the main PCB ASSY.