Pf Encoder Sensor Cannot Detect Rotation Of The Recording Paper Feed Motor - Brother DCP-J4110DW Service Manual

Error Code 8A

PRINTER JAM

PF encoder sensor cannot detect rotation of the recording paper feed motor.

User Check
- Remove the jammed paper in jam clear cover part, platen part and front part.
Step
1 Foreign materials in the feeding
path
2 Paper feed motor harness
connection failure
3 PF encoder sensor harness
connection defective
4 Sensor relay PCB harness
connection failure
5 PF roller belt out of place
6 PF encoder sensor defective
7 Sensor relay PCB defective
8 PF encoder disk defective
9 Paper feed motor defective
10 Main PCB defective
Cause
Remove foreign materials.
Reconnect the paper feed motor harness.
Reconnect the PF encoder sensor harness.
Reconnect the sensor relay PCB harness.
Set the PF roller belt into place.
Replace the PF encoder sensor.
Replace the sensor relay PCB ASSY.
Replace the PF encoder disk.
Replace the paper feed motor.
Replace the main PCB ASSY.
2-48
LCD
Solution
Confidential