Brother DCP 8085DN

3-57
Confidential
■ Downward fogging of solid color
■ Horizontal lines
<User Check>
- Toner may be empty. Replace the toner cartridge with a new one.
Step Cause Check
Result Remedy
1
HVPS PCB
failure
Is the problem solved
after replacing the
HVPS PCB ASSY?
Yes
Replace the HVPS PCB
ASSY.
2
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes
Replace the main PCB
ASSY.
<User Check>
- The paper tray ground terminal provided in the machine
body may be dirty. Clean the contact with a dry cloth.
Step Cause Check
Result Remedy
1
Dirt on charged
electrode
Are the electrodes on
the drum unit and
machine body dirty?
Yes
Clean both electrodes.
(Refer to Fig. 3-2, Fig. 3-3.)
2
Paper tray
ground terminal
provided in
machine body
Is the paper tray ground
terminal bent, which is
provided in the machine
body?
Yes
Correct bending of paper
tray ground terminal.
3
Laser unit failure Is the problem solved
after replacing the laser
unit?
Yes
Replace the laser unit.