2-112
Confidential
Partially shaded
Fully tinged
<User Check>
• Clean the scanner glass.
Step Cause Remedy
1 Dirt inside of scanner glass Clean the inside of scanner glass.
2 Deformed document sponge Replace the document scanner unit.
<User Check>
• Clean the scanner glass or first side/second side
scanner glass strip.
Step Cause Remedy
1
Incorrect white level
correction data
Execute “Acquire white level data (Function
code 55)”.
2
First or second side CIS unit
failure
Replace the first or second side CIS unit.
3 Main PCB failure Replace the main PCB ASSY.