8F00 Paper Feed Motor Cannot Stop; 8F01 Pf Encoder Sensor Cannot Detect Rotation Of The Paper Feed Motor - Brother HL-J6000DW Service Manual

■ Error Code 8900
Paper width sensor cannot detect origin specified on the paper feed roller.
Step
1 PF encoder disk stained
2 PF home position detection
lever out of place
3 Paper width sensor or carriage
PCB defective
4 Main PCB defective
PF home position detection lever
■ Error Code 8F00
Paper feed motor cannot stop.
Step
1 Paper feed roller belt out of
place
2 PF encoder sensor defective
3 PF encoder disk defective
4 Paper feed motor defective
5 Main PCB defective
■ Error Code 8F01
PF encoder sensor cannot detect rotation of the paper feed motor.
Step
1 PF encoder sensor harness
connection failure
2 PF motor harness connection
failure
3 PF encoder sensor defective
4 PF encoder disk defective
5 Paper feed motor defective
6 Main PCB defective
Cause
Clean the PF encoder disk and flushing guide.
(refer to
or
Set the PF home position detection lever into
place.
Replace the carriage PCB ASSY.
Replace the main PCB.
Fig. 2-7
Cause
Set the paper feed roller belt into place.
Replace the PF encoder sensor.
Replace the PF encoder disk.
Replace the paper feed motor.
Replace the main PCB.
Cause
Reconnect the PF encoder sensor harness.
Reconnect the PF motor harness.
Replace the PF encoder sensor PCB.
Replace the PF encoder disk.
Replace the paper feed motor.
Replace the main PCB.
2-49
Solution
"Precautions for Troubleshooting and/
Disassembly/Assembly")
Solution
Solution
Confidential