Brother MFC-8540DN Service Manual

2-77
Confidential
 Error code BB00
A white level not within the standard was scanned when function code 55 was executed.
 Error code BC00
When scanning the fax, white or black correction data for the second side CIS was not within
the correct range (second time).
 Error code BD00
A black level not within the standard was scanned when function code 55 was executed.
Step Cause Remedy
1
Dirt on the second side
document hold
Clean the second side document hold.
2 Dirt on the white tape Clean the white tape.
3 First side CIS unit failure Replace the first side CIS unit.
4 Second side CIS unit failure Replace the second side CIS unit.
5
Second side document hold
failure
Replace the ADF unit.
6 White tape failure Replace the document scanner unit.
7 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Incorrect correction data for
second 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 Second side CIS unit failure Replace the second side CIS unit.
4 Main PCB failure Replace the main PCB ASSY.
Step Cause Remedy
1
Dirt on the second side
document hold
Clean the second side document hold.
2 Dirt on the white tape Clean the white tape.
3 First side CIS unit failure Replace the first side CIS unit.
4 Second side CIS unit failure Replace the second side CIS unit.
5
Second side document hold
failure
Replace the ADF unit.
6 White tape failure Replace the document scanner unit.
7 Main PCB failure Replace the main PCB ASSY.

Brother MFC-8540DN Specifications

General

Brand	Brother
Model	MFC-8540DN
Category	All in One Printer
Language	English