Brother MFC-8510DN, Service Manual

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Confidential
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Error code AC00
When scanning the fax, white or black correction data for the second side CIS was not within
the correct range.
„ Error code AD00
Image processing cannot be completed correctly because the number of pixels required for
image processing is insufficient in the scanned data for the front side of the document.
„ Error code AE00
This error does not usually occur during normal use. The possible causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
An unidentified error occurred.
„
Error code AF00
Home position is still being detected even after the first side CIS for the document scanner
unit was moved.
Scan Unable
Remove the original document. Turn the power off, then on again.
<User Check>
• Clean the second side document hold.
Step Cause Remedy
1 Second side CIS unit failure Replace the second side CIS unit.
2 Main PCB failure Replace the main PCB ASSY.
Scan Unable
Remove the original document. Turn the power off, then on again.
Step Cause Remedy
1
Incorrect correction data for
first side CIS Execute function code 55.
2 First side CIS unit failure Replace the first side CIS unit.
3 Main PCB failure Replace the main PCB ASSY.
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Step Cause Remedy
1 Main PCB failure Replace the main PCB ASSY.
Scan Unable AF
See Troubleshooting and routine maintenance chapter in User's Guide.
Step Cause Remedy
1 CIS drive belt coming off Reattach the CIS drive belt.
2 First side CIS unit failure Replace the first side CIS unit.
3
Document scanner motor
failure Replace the document scanner unit.
4 Main PCB failure Replace the main PCB ASSY.