Brother HL-L9300CDW - Page 121

2-101
Confidential
■ Dirt on back side of paper
■ Electrodes location of waste toner box
Fig. 2-10
<User Check>
- This symptom might stop occurring after making
several prints.
- Replace the toner cartridge 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
main body and the belt unit
Clean the electrodes of the main body and
the belt unit.
(Refer to Fig. 2-5 (P2-57), Fig. 2-9 (P2-97).)
3 Dirt on the electrodes of the
main body and the waste
toner box
Clean the electrodes of the main body and
the waste toner box.
(Refer to Fig. 2-5 (P2-57) , See the figure
below.)
4 Dirt on the cleaner pinch roller
of the fuser cover
Replace the cleaner pinch roller S ASSY.
5 Dirt on the fuser unit Replace the fuser unit.
6 High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY.