Brother MFC-L2700D - White Spots

2-74
Confidential
 White spots
<User Check>
- Check that the fan is not clogged.
- Refer to the User's Guide to remove the dirt from the exposure drum
using a cotton applicator.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1
Accumulated paper dust Remove the paper dust cleaning roller cover
and get rid of the paper dust in the area
described in Fig. 2-10.
2
Clogged filter Clean the filter.
3
Scratch or dirt on the fuser unit Replace the fuser unit.
4
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.