A7 Mismatch Between Actual Cis Type And Eeprom Data; A8 Color Parameter Matching Error. (Used For Monitoring Bugs At The Factory.); Fax Scanning Failure By The Second Side Scanning Cis (1St Time) - Brother MFC-J6510DW Service Manual

Error Code A7
Unable to Scan A7
Mismatch between actual CIS type and EEPROM data.
Step
1 Main PCB defective
Error Code A8
Unable to Init. A8
Color parameter matching error. (Used for monitoring bugs at the factory.)
Step
1
Program malfunctioning
2
Main PCB defective
Error Code AC
Unable to Scan AC

Fax scanning failure by the second side scanning CIS (1st time).

User Check
- Send a fax again.
Step
1 Document pressure bar (for
second side scanning) stained
2 Second side scanning CIS
defective
3 Main PCB defective
Cause
Replace the main PCB ASSY.
Cause
Reload programs.
Replace the main PCB ASSY.
Cause
Clean the document pressure bar.
Replace the CIS unit.
Replace the main PCB ASSY.
2-55
LCD
Solution
LCD
Solution
LCD
Solution
Confidential