Brother MFC-8540DN Service Manual

2-75
Confidential
 Error code A700
Color parameter in the ROM does not match the first side or second side CIS.
Error code A900
A scanning error occurred while processing the scanned image.
 Error code AC00
When scanning the fax, white or black correction data for the second side CIS was not within
the correct range (first time).
 Error code AD00
Image processing cannot be completed correctly because the number of pixels required for
image processing is insufficient in the scanned first side data.
Step Cause Remedy
1
Incorrect correction data for first
side or second side CIS unit
Execute "Acquire white level data (function
code: 55)".
2
Damaged first side CIS flat
cable
Replace the first side CIS flat cable.
3
Damaged second side CIS flat
cable
Replace the second side CIS flat cable.
4 First side CIS unit failure Replace the first side CIS unit.
5 Second side CIS unit failure Replace the second side CIS unit.
6 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
Incorrect correction data for first
side CIS unit
Execute "Acquire white level data (function
code: 55)".
2 First side CIS unit failure Replace the first side CIS unit.
3 White tape failure Replace the document scanner unit.
4 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