Brother HL-L3210CW - Page 117

2-98
Confidential
■ Dirt on back side of paper
■ Electrodes location of waste toner box
Fig. 2-12
<User Check>
• This problem may disappear after printing multiple
sheets of paper.
• Replace the drum unit with a new one.
• Replace the belt unit.
• Replace the waste toner box.
Step Cause Remedy
1 Dirt in the paper feed system Wipe dirt off.
2
Dirt on the electrodes of the
belt unit and those of the
machine
Clean the electrodes of the belt unit and
those of the machine. (Refer to Fig. 2-6 (P2-
63) and Fig. 2-11 (P2-94).)
3
Dirt on the electrodes of the
waste toner box and those of
the machine
Clean the electrodes of the waste toner box
and those of the machine. (Refer to Fig. 2-6
(P2-63) and below.)
4 Dirt on the fuser unit Replace the fuser unit.
5
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB.