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Confidential
Error code A400
The ADF cover sensor detected that the ADF cover was open.
Error code A500
When scanning the fax, white or black correction data for the first side CIS unit was not within
the correct range (first time).
Error code A600
When scanning the fax, white or black correction data for the first side CIS unit was not within
the correct range (second time).
<User Check>
• Close the ADF cover correctly.
Step Cause Remedy
1
A part to push the ADF cover
sensor in the ADF cover is
broken.
Replace the ADF cover ASSY.
2 ADF cover sensor failure Replace the ADF unit.
3 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Incorrect correction data for first
side CIS unit
Execute "Acquire white level data (function
code: 55)".
2
Dirt on the white tape on the
second side document hold
Clean the white tape on the second side
document hold.
3 First side CIS unit failure Replace the first side CIS unit.
4 White tape failure Replace the document scanner unit.
5 Main PCB failure Replace the main PCB ASSY.
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