Overcurrent Protection Was Activated In The Driver Ic During Purge Cam Operation; Overcurrent Protection Was Activated In The Driver Ic During Maintenance Unit Pump Operation - Brother MFC Series Service Manual

■ Error Code 50
Unable to print 50
Failed to detect that the Purge cam switch 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 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.
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LCD
LCD
Solution
LCD
LCD
LCD
LCD
Solution
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