Samsung CLX-9350ND - Foggy Background

7. Trouble
s
A. T
yp
ical fault
y
ima
g
es
7.3.4 Foggy background
yp y g
Step Section Check ite
m
1 Imaging unit HV terminal of imaging
2 Dirty on the outside du
e
toner
3
Oi i l
Oi i li d d
B. Troubleshooting procedure
3
O
r
i
g
i
na
l
O
r
i
g
i
na
l
i
s
d
amage
d
or
4 DADF DADF does not lie flat.
5 Original glass Original glass is dirty.
6
Sh di h t
Sh di h t Gl
i
6
Sh
a
di
ng s
h
ee
t
Sh
a
di
ng s
h
ee
t
Gl
ass
is
7 Mirror, lens,
exposure lamp,
and reflectors
Mirror is dirty.
8 Lens is dirty.
9 Exposure lamp is dirty.
10
Reflectors are dirty
10
Reflectors
are
dirty
.
11 Basic screen
quality/ density
The problem is elimina
t
image is produced in t
h
exposure setting.
12 The problem has been
through the checks of
s
Service Manual
CLX-9250/9350 series
7-1
s
hooting
m
Result Action
unit is dirty. Yes Clean the terminal.
e
to scattered Yes Replace imaging unit with
new one
di t
Y
Ch i i l
di
r
t
y.
Y
es
Ch
ange or
i
g
i
na
l
.
Yes Change DADF if it is
deformed or hinges are
broken.
Yes Wipe the surface clean
with a soft cloth.
di t
Y
Wi th f l
s
di
r
t
y.
Y
es
Wi
pe
th
e sur
f
ace c
l
ean
Glass with a soft cloth
Yes Clean.
Yes Clean.
Yes Clean.
Yes
Clean
Yes
Clean
.
t
ed when the
h
e manual
No Try another exposure
level in manual.
eliminated
s
teps up to 10.
No Scan the Chart and check
the image quality again
SAMSUNG ELECTRONICS
53