Brother HL-J6000DW Service Manual page 98

Step
14 PF encoder disk defective
15 Registration sensor defective
16 3rd tray paper pull-in sensor
defective
17 Paper feed motor defective
18 3rd tray paper feed motor
defective
19 ASF motor/Switching lever
guide defective
20 Main PCB defective
Lubricant type: Permalub BAN-5
Lubricant amount: 3.0 mm diameter ball
Cause
Replace the PF encoder disk.
Replace the registration sensor PCB ASSY.
Replace the 3rd tray paper pull-in sensor.
Replace the paper feed motor.
Replace the 3rd tray paper feed motor.
Replace the maintenance unit.
Replace the main PCB.
Maintenance unit
Apply grease here.
Fig. 2-8
2-58
Solution
Confidential