Pf Encoder Sensor Cannot Detect The Rotation Of The Paper Feed Roller; Pf Encoder Sensor Detects An Abnormal Stop Of The Paper Feed Roller - Brother DCPJ525W Service Manual

Error Code 8A
PRINTER JAM

PF encoder sensor cannot detect the rotation of the paper feed roller.

Error Code 8B
PRINTER JAM

PF encoder sensor detects an abnormal stop of the paper feed roller.

User Check
- Check whether recording paper is jammed.
Step
1 Foreign materials inside the
engine unit
2 Paper feed motor harness
connection failure
3 Connection failure of the PF
encoder sensor harness
4 PF encoder disc defective
5 PF encoder sensor PCB defective
6 Pressure roller release sensor
defective
7 Paper feed motor defective
8 Engine unit defective
9 Main PCB defective
Cause
Remove foreign materials.
Check the connection and reconnect the harness.
Check the connection and reconnect the harness.
Replace the PF encoder disc and clean the flushing
guide. Refer to
Replace the PF encoder sensor PCB ASSY.
Replace the pressure roller release sensor PCB
ASSY.
Replace the paper feed motor.
Replace the engine unit.
Replace the main PCB ASSY.
2-46
Solution
Chapter 3, Section 1.
LCD
LCD
Confidential