Error Code A8/A9/Ad - Brother DCP-7055 Service Manual

■ Error code A8
Scan Unable A8
See Troubleshooting and routine maintenance chapter in User's Guide.
Scanning color parameter error for recording the image.
Step
White level data failure
1
2 Document scanner unit failure
3 Main PCB failure
■ Error code A9
These errors do not usually occur in the normal use. The conceivable causes are noise around
the installation site, fluctuation of the power supply voltage, and failures in the software.
Scan Unable A9
Error, which cannot be specified, occurs.
Error code AA, AB
---
Error, which cannot be specified, occurs.
Error code AC
Scan Unable AC
Remove the original document. Turn the power off, then on again.
Error, which cannot be specified, occurs.
<User Check>
• Turn OFF the power switch, and turn it ON again after a while.
Step
1 Main PCB failure
■ Error code AD
Scan Unable AD
Remove the original document. Turn the power off, then on again.
Timeout error during waiting for completion of scanning DMA transfer.
Step
1 Document scanner unit failure
2 Main PCB failure
Cause
Cause
Cause
2-58
Remedy
Execute the "Acquisition of white level data
(Function code 55)".
Replace the document scanner unit.
Replace the main PCB ASSY.
Remedy
Replace the main PCB ASSY.
Remedy
Replace the document scanner unit.
Replace the main PCB ASSY.
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