Brother DCP-L5500D Service Manual page 109

 Error code A400
The ADF cover sensor detected that the ADF cover was open.
<User Check>
• Close the ADF cover correctly.
Step
A part to push the ADF cover
1 sensor in the ADF cover is
broken.
2 ADF cover sensor failure
3 Main PCB failure
 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).
Step
Incorrect correction data for first
1
side CIS unit
Dirt on the white tape on the
2
second side document hold
3 First side CIS unit failure
4 White tape failure
5 Main PCB failure
Cause
Replace the ADF cover ASSY.
Replace the ADF unit.
Replace the main PCB ASSY.
Cause
Execute "Acquire white level data
code:
Clean the white tape on the second side
document hold.
Replace the first side CIS unit.
Replace the document scanner unit.
Replace the main PCB ASSY.
2-74
Remedy
Remedy
55)".
(function
Confidential