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2-119
Confidential
Faulty registration
Dark
(1) ADF
Step
Cause
Remedy
1
Deviation of the scanning start
position
Execute "Fine adjustment of scan start
position. (
2
Document scanning position
actuator caught in some sections of
the machine
Reattach the document scanning position
actuator.
(2) Document scanner unit
Step
Cause
Remedy
1
Deviation of the scanning start
position
Execute "Fine adjustment of scan start
position. (
2
First side CIS unit failure
Replace the first side CIS unit.
<User Check>
• Check that the contrast setting is not too dark.
• Clean the document hold.
Step
Cause
Remedy
1
Incorrect white level correction data Execute "Acquire white level data (
)".
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.