Brother HL-L9300CDW Service Manual page 117

■
Electrodes location of belt unit
■
Faulty registration
Step
1 Registration rear actuator
coming off
2 Laser unit failure
3 Main PCB failure
Fig. 2-9
<User Check>
- Check whether appropriate paper type is selected on the
driver.
Cause
Re-assemble the registration rear actuator.
Replace the laser unit.
Replace the main PCB ASSY.
2-97
Remedy
Confidential