Brother MFC-J6510DW

2-50
Confidential
 Error Code 8A
PF encoder cannot detect the rotation of the paper feed roller.
Error Code 8B
PF encoder detects an abnormal stop of the paper feed roller.
User Check
- Check whether recording paper is jammed.
Paper Jam
LCD
Paper Jam
LCD
Step Cause Solution
1 Foreign materials inside the
engine unit
Remove foreign materials.
2
Paper feed motor harness
connection failure
Check the connection and reconnect the harness.
3 Connection failure of the PF
encoder/PF sensor harness unit
Check the connection and reconnect the harness.
4
PF encoder disk defective
Replace the PF encoder disk.
5
PF encoder PCB defective
Replace the PF encoder/PF sensor harness unit.
6 Paper feed motor defective Replace the paper feed motor.
7
Engine unit defective Replace the engine unit.
8
Main PCB defective
Replace the main PCB ASSY.