Faint Print - Brother MFC-9130CW Service Manual

■ White horizontal stripes on one color image
<User Check>
- This symptom might stop occurring after making several prints.
- Refer to the User's guide and remove the dirt on the exposure drum using a cotton swab.
- Replace the drum unit or toner cartridge with a new one.
Step
1 Dirt on charged electrode
2 Scratch and dirt on fuser unit
3 High-voltage power supply
PCB failure

■ Faint print

Step
1 LED ASSY failure
2 Main PCB failure
Cause
Wipe dirt off.
Replace the fuser unit.
Replace the high-voltage power supply PCB
ASSY.
<User Check>
- Check that the machine is set on a level surface.
- Replace the drum unit or toner cartridge with a new one.
- Clean the LED ASSY.
Cause
Replace the LED ASSY.
Replace the main PCB ASSY.
2-96
Remedy
Remedy
Confidential