Brother MFC-J6510DW Service Manual page 65

Error Code 3E
Unable to Print 3E / Unable to Clean 3E / Unable to Init. 3E
Any abnormality in the carriage motor, ASF motor, or paper feed motor.
Step
1
Foreign materials in the recording
paper path
2
Foreign materials in the
maintenance unit
3
Maintenance unit defective
4
Engine unit defective
5
Main PCB defective
Error Code 3F
Unable to Print 3F / Unable to Clean 3F / Unable to Init. 3F
Carriage motor does not stop. (Keeps rotating for 10 seconds or more)
Step
1
Carriage motor harness
connection failure
2 CR encoder strip stained
3
Carriage motor defective
4
Main PCB defective
Cause
Remove foreign materials.
Remove foreign materials.
Replace the maintenance unit.
Replace the engine unit.
Replace the main PCB ASSY.
Cause
Check the connection and reconnect the harness.
Replace the encoder strip.
Replace the carriage motor.
Replace the main PCB ASSY.
2-35
LCD
Solution
LCD
Solution
Confidential