Brother DCP375CW Service Manual page 152

Error Code
Symptom
(Hex)
8A The PF encoder sensor
cannot detect the rotation
of the paper feed motor.
8B The PF encoder sensor
detects that the paper
feed motor stops
suddenly.
8C Current protection for
the driver IC activated in
paper feeding operation.
8D, 8E Not used.
8F The PF encoder sensor
detects that the paper
feed motor is being
driven and cannot be
stopped.
Probable Cause
Foreign materials in the
machine
Paper feed motor harness not
connected correctly
Abnormal load applied to the
paper feed roller
PF-related gear(s) broken
PF encoder disk stained or
scratched
PF encoder sensor defective
Paper feed motor defective
Main PCB defective
Abnormal load applied to the
paper feed roller
PF-related gear(s) broken
PF encoder disk stained or
scratched
PF encoder sensor defective
Paper feed motor defective
Main PCB defective
The driving current has
exceeded the limit due to an
abnormal load applied to the
PF-related gears and rollers.
Software malfunction
Paper feed motor harness not
connected correctly
Main PCB defective
4-20
Solution
Remove foreign materials.
Reconnect the paper feed
motor harness.
Replace the PF-related gear(s).
Replace the PF encoder disk.
Replace the PF encoder/
registration sensor harness unit.
Replace the engine unit.
Replace the main PCB.
Replace the PF-related gear(s).
Replace the PF encoder disk.
Replace the PF encoder/
registration sensor harness unit.
Replace the engine unit.
Replace the main PCB.
Replace the PF encoder disk.
Replace the engine unit.
Replace the main PCB.
Open and close the scanner
cover.
Unplug and plug the AC cord.
Correct the connection.
Replace the main PCB.
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