Brother MFC260C Service Manual page 111

Error Code
(Hex)
50 The purge cam switch
51 does not come ON or OFF
even after the purge cam
has been driven by the
specified number of
pulses.
52 The purge cam switch
does not come ON at each
detection point.
53 Not used.
Symptom
4 - 1 0
Probable Cause
Planetary arm assembly
not engaged correctly
Purge cam switch
harness not connected
correctly
Purge cam switch broken Replace the purge cam
Gear(s) on the
maintenance unit broken
Paper feed motor
defective
Power supply PCB
defective
Main PCB defective
Planetary arm assembly
not engaged correctly
Purge cam switch
harness not connected
correctly
Purge cam switch broken Replace the purge cam
Gear(s) on the
maintenance unit
broken
Abnormal load applied
to the purge cam
Paper feed motor broken
Main PCB defective
Solution
Set the maintenance unit
into place.
If the planetary arm does
not move smoothly,
clean it.
Correct the connection.
switch.
Replace the maintenance
unit.
Replace the paper feed
motor.
Replace the power
supply PCB.
Replace the main PCB.
Set the maintenance unit
into place.
If the planetary arm does
not move smoothly, clean
it.
Correct the connection.
switch.
Replace the maintenance
unit.
Replace the paper feed
motor.
Replace the main PCB.
Confidential