2-94
Confidential
Faulty registration
(1) ADF
(2) Document scanner unit
Dark or bluish white
Step Cause Remedy
1
First side document scanning
position actuator caught in some
sections of the machine
Reattach the first side document scanning
position actuator.
2
Second side document scanning
position actuator caught in some
sections of the machine
Reattach the second side document
scanning position actuator.
Step Cause Remedy
1 First side CIS unit failure Replace the first side CIS unit.
<User Check>
- Check that the contrast setting is not too dark.
Step Cause Remedy
1 Incorrect white level correction data Execute function code 55.
2
First side CIS unit or second side
CIS unit failure
Replace the first side CIS unit or second
side CIS unit.
3 Main PCB failure Replace the main PCB ASSY.
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