Brother MFC-L2712DN - Page 46


Spots or dirt
<User Check>
•
Che
ck if d
amp p
ape
r is use
d.
•
R
ef
er
to
<How to clean the drum unit>
to remove the dirt from the
exposure drum using a cotton
applicator.
•
Repla
ce the
drum u
nit wit
h a ne
w one.
•
Repla
ce the to
ner cart
ridge w
ith a ne
w one.
S
t
e
p
C
a
u
s
e
R
e
m
e
d
y
1
Dirt on the paper dust
cleaning roller of the paper
tray
Refer to the
Fig. 2-14 (P2-73)
to clean the
paper dust cleaning roller.
2
D
i
r
t o
n t
h
e e
x
p
o
s
u
re
d
r
u
m
Pe
r
f
or
m d
r
u
m c
l
e
a
n
i
n
g
.
(Refer to
“2.1 Drum Cleaning” in Chapter 5
.)
3
C
l
o
g
g
e
d
f
i
l
t
e
r
C
l
e
a
n
t
h
e
f
i
l
t
e
r
.
4
Scratch or dirt on the fuser
unit
Replace the fuser unit.
5
High-voltage power supply
PCB failure
Replace the high-voltage power supply PCB
ASSY
.
Note:
Image defects which appear periodically may be caused by failure of rollers. Refer to
<Pitches on images caused by rollers>
and determine the cause based on the pitch at
which defects appear on the image.