Brother MFC-8540DN Service Manual

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 Error code A000
Image processing was not completed correctly because the number of pixels required for
image processing is insufficient in the scanned second side data.
 Error code A200
The document scanning position sensor detected that the document length was 90 cm or
more during the one-side scanning.
 Error code A300
The document scanning position sensor has not detected the document passing even after
the document has been fed for the specified time.
Step Cause Remedy
1
Incorrect correction data for
second side CIS unit
Execute "Set CIS scan area (function code:
55)".
2 Second side CIS unit failure Replace the second side CIS unit.
3 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Set the specified size paper.
• Remove the jammed document.
Step Cause Remedy
1
Document scanning position
actuator caught in some
sections of the machine
Reattach the document scanning position
actuator.
2
Document scanning position
sensor failure
Replace the ADF unit.
3 Main PCB failure Replace the main PCB ASSY.
<User Check>
• Set A4 or Letter size paper.
• Remove the jammed document.
Step Cause Remedy
1
Document scanning position
actuator caught in some
sections of the machine
Reattach the document scanning position
actuator.
2
Connection failure of the
document scanning position
sensor harness
Reconnect the document scanning position
sensor harness.
3
Document scanning position
sensor failure
Replace the ADF 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