Brother DCP-8157DN User Manual

2-75
Confidential
 Poor fixing
 Completely blank
<User Check>
- Check the usage environment of the machine. Using the machine in
high temperature and humidity or low temperature and humidity
conditions can cause this problem.
- Select "Improve Toner Fixing" in the driver.
- Clean the corona wire.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1 Fuser unit failure Replace the fuser unit.
2
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
3
Low-voltage power supply PCB
failure
Replace the low-voltage power supply PCB
ASSY.
4 Laser unit failure Replace the laser unit.
5 Main PCB failure Replace the main PCB ASSY.
<User Check>
- Clean the corona wire.
- Replace the drum unit with a new one.
- Replace the toner cartridge with a new one.
Step Cause Remedy
1
Dirt on electrodes of the drum unit
and those of the machine
Clean the electrodes of the drum unit and
those of the machine. (Refer to Fig. 2-10 or
Fig. 2-11.)
2 Laser unit attachment failure Reattach the laser unit.
3 Laser unit failure Replace the laser unit.
4
High-voltage power supply PCB
failure
Replace the high-voltage power supply PCB
ASSY.
5 Main PCB failure Replace the main PCB ASSY.

Brother DCP-8157DN Specifications

General

Brand	Brother
Model	DCP-8157DN
Category	Printer
Language	English