The Asf Encoder Sensor Cannot Detect The Rotation Of The Asf Motor; Overcurrent Protection Was Activated In The Driver Ic Of The Asf Motor; Asf Motor Cannot Stop - Brother DCP-J552DW Service Manual

■ Error Code 6A
Unable to print 6A

The ASF encoder sensor cannot detect the rotation of the ASF motor.

<User Check>
Remove the jammed paper in jam clear cover part, platen part and front part.
Step
1 Foreign materials in the recording
paper feeding path
2 ASF motor harness connection
failure
3 ASF encoder sensor harness
connection failure
4 ASF motor defective
ASF encoder defective
5 Main PCB defective
■ Error Code 6C
Unable to print 6C

Overcurrent protection was activated in the driver IC of the ASF motor.

Step
1 Foreign materials in the
maintenance unit part
2 Foreign materials in the engine
gears
3 ASF motor defective
4 Main PCB defective
■ Error Code 6F
Unable to print 6F

ASF motor cannot stop.

Step
1 ASF motor harness connection
failure
2 ASF encoder sensor harness
connection failure
3 Carriage motor harness
connection failure
4 Paper feed motor harness
connection failure
5 ASF motor defective
ASF encoder defective
6 Main PCB defective
Cause
Remove foreign materials.
Reconnect the ASF motor harness.
Reconnect the ASF encoder sensor harness.
Replace the maintenance unit.
Replace the main PCB.
Cause
Remove foreign materials.
Remove foreign materials.
Replace the maintenance unit.
Replace the main PCB ASSY.
Cause
Reconnect the ASF motor harness.
Reconnect the ASF encoder sensor harness.
Reconnect the carriage motor harness.
Reconnect the paper feed motor harness.
Replace the maintenance unit.
Replace the main PCB ASSY.
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