Brother MFC-L2712DN - Page 39


Error code 4F01
The new toner sensor of the toner cartridge could not detect a new cartridge properly.
<User Check>
•
Replac
e the toner c
artridg
e with a new ton
er cartrid
ge again.
•
If the machi
ne is on the uneven sur
face, pla
ce it on a level surfa
ce.

Error code 4F05
New process sensor could not
detect the new drum un
it correctly.
<User Check>
•
Replac
e the dru
m unit w
ith a new
drum un
it again
.
•
If the machi
ne is on the uneven sur
face, pla
ce it on a level surfa
ce.

Error code 5E00
New toner box sensor could
not detect the new
toner box correctly.
<User Check>
•
Replac
e the to
ner box w
ith a ne
w toner b
ox agai
n.
•
If the machi
ne is on the uneven sur
face, pla
ce it on a level surfa
ce.
S
t
e
p
C
a
u
s
e
R
e
m
e
d
y
1
Connection failure of the new
toner sensor PCB harness
Reconnect the new toner sensor PCB
harness.
2
New toner actuator coming off or
caught in some sections of the
machine
Reattach the new toner actuato
r.
3
N
e
w
t
o
n
e
r
s
e
n
s
o
r
f
a
i
l
u
r
e
R
e
p
l
a
c
e
t
h
e
n
e
w
t
o
n
e
r
s
e
n
s
o
r
P
C
B
A
S
S
Y
.
4
M
a
i
n
P
C
B
f
a
i
l
u
r
e
R
e
p
l
a
c
e
t
h
e
m
a
i
n
P
C
B
A
S
S
Y
.
S
t
e
p
C
a
u
s
e
R
e
m
e
d
y
1
High-voltage power supply PCB
failure
Replace the high-voltage power supply
PCB ASSY.
2
M
a
i
n
P
C
B
f
a
i
l
u
r
e
R
e
p
l
a
c
e
t
h
e
m
a
i
n
P
C
B
A
S
S
Y
.
S
t
e
p
C
a
u
s
e
R
e
m
e
d
y
1
Ne
w t
on
er
bo
x s
en
so
r f
ai
lu
re
Re
pl
ac
e t
he
hi
gh
-v
ol
ta
ge
po
we
r s
up
pl
y
PCB ASSY.
2
M
a
i
n
P
C
B
f
a
i
l
u
r
e
R
e
p
l
a
c
e
t
h
e
m
a
i
n
P
C
B
A
S
S
Y
.