Head Capping Does Not Work Normally; Head Uncapping Does Not Work Normally; The Cap Cam Abnormally Stopped During Capping; The Cap Cam Abnormally Stopped During Uncapping - Brother DCP-J552DW Service Manual

■ Error Code 75
Unable to print 75

Head capping does not work normally.

Error Code 76
Unable to print 76

Head uncapping does not work normally.

<User Check>
- Remove the jammed recording paper from the platen part and the maintenance unit part.
Step
1 Foreign materials inside the
maintenance unit
2 Foreign materials inside the
engine unit
3 Carriage motor defective
4 Maintenance unit defective
5 Main PCB defective
■ Error Code 7A
Unable to print 7A

The cap cam abnormally stopped during capping.

Error Code 7B
Unable to print 7B

The cap cam abnormally stopped during uncapping.

Error Code 7D
Unable to print 7D

Overcurrent protection was activated in the driver IC during capping.

<User Check>
- Remove the jammed recording paper from the platen part and the maintenance unit part.
Step
1 Foreign materials inside the
maintenance unit
2 Carriage motor defective
3 Maintenance unit defective
4 Main PCB defective
Cause
Remove foreign materials.
Remove foreign materials.
Replace the carriage motor.
Replace the maintenance unit.
Replace the main PCB ASSY.
Cause
Remove foreign materials.
Replace the carriage motor.
Replace the maintenance unit.
Replace the main PCB ASSY.
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LCD
LCD
Solution
LCD
LCD
LCD
Solution
Confidential