2-109
Confidential
Faulty registration
• First side (Document scanner unit)
• Second side (ADF unit)
Dark
Step Cause Remedy
1
Deviation of the scanning
start position
Execute “Fine adjustment of scan start
position (Function code 54)”.
2
Document scanning position
actuator caught in some
sections of the machine
Reattach the document scanning position
actuator.
Step Cause Remedy
1
Deviation of the scanning
start position
Execute “Fine adjustment of scan start
position (Function code 54)”.
2
Document scanning position
actuator caught in some
sections of the machine
Reattach the document scanning position
actuator.
<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 (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.
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