Cannot Detect The Home Position Of The Purge Cam; Abnormal Stopping Of The Purge Cam; The Maintenance Unit Pump Abnormally Stopped During Exhaust/Intake; Overcurrent Protection Was Activated In The Driver Ic During Purge Cam Operation - Brother DCP-J552DW Service Manual

■ Error Code 50
Unable to print 50
Failed to detect that the purge cam sensor is turned ON.
Error Code 52
Unable to print 52
Cannot detect the home position of the purge cam. (Failed to detect the longest OFF status interval
of the maintenance cam)
Step
1 Foreign materials in the
maintenance unit part
2 Purge cam sensor harness
connection failure
3 Purge cam sensor/ASF motor
defective
4 Main PCB defective
■ Error Code 5A
Unable to print 5A

Abnormal stopping of the purge cam.

Error Code 5B
Unable to print 5B

The maintenance unit pump abnormally stopped during exhaust/intake.

Error Code 5D
Unable to print 5D

Overcurrent protection was activated in the driver IC during purge cam operation.

Error Code 5E
Unable to print 5E

Overcurrent protection was activated in the driver IC during maintenance unit pump operation.

Step
1 Foreign materials in the
maintenance unit part
2 Maintenance unit defective
3 Main PCB defective
Cause
Remove foreign materials.
Reconnect the purge cam sensor harness.
Replace the maintenance unit.
Replace the main PCB ASSY.
Cause
Remove foreign materials.
Replace the maintenance unit.
Replace the main PCB ASSY.
2-36
LCD
LCD
Solution
LCD
LCD
LCD
LCD
Solution
Confidential