Brother MFC-9460CDN - Image Distortion

2-116
Confidential
■ Completely blank
■ Image distortion
<User Check>
- Replace the belt unit with a new one.
- Replace the toner cartridge or drum unit with a new one.
Step Cause Remedy
1 Developing bias voltage
conduction failure
Clean the electrodes of the drum unit and
main body. (Refer to Fig. 2-10 (P2-62) and
Fig. 2-13 (P2-63))
2 Dirt on developer roller
electrode
Clean the electrodes of the developer roller
and main body. (Refer to Fig. 2-10 (P2-62)
and Fig. 2-13 (P2-63))
3 Laser unit assembling failure Re-assemble the laser unit.
4 High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.
5 Laser unit failure Replace the laser unit.
6 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Replace the belt unit with a new one.
Step Cause Remedy
1 Laser unit assembling failure Re-assemble the laser unit.
2 Main PCB failure Replace the main PCB ASSY.