Foggy Background - Samsung CLX-9350ND Service Manual

7.3.4 Foggy background

A. Typical faulty images yp y
B. Troubleshooting procedure
Step Section
1 Imaging unit
2
3 3 Original O i i l
4 DADF
5 Original glass
6 6 Shading sheet Sh di h
7 Mirror, lens,
exposure lamp,
8
and reflectors
9
10 10
11 Basic screen
quality/ density
12
Service Manual
CLX-9250/9350 series
7. Troubles
g
Check item
HV terminal of imaging
Dirty on the outside due
toner
Original is damaged or O i i l i d
DADF does not lie flat.
Original glass is dirty.
t Shading sheet Glass is Sh di h t Gl
Mirror is dirty.
Lens is dirty.
Exposure lamp is dirty.
Reflectors are dirty. Reflectors are dirty
The problem is eliminat
image is produced in th
exposure setting.
The problem has been
through the checks of s
shooting
m Result
unit is dirty.
e to scattered
d di t dirty.
i s dirty. di t
ted when the
he manual
eliminated
steps up to 10.
7-1 53
Action
Yes Clean the terminal.
Yes Replace imaging unit with
new one
Yes Y Ch Change original. i i
Yes Change DADF if it is
deformed or hinges are
broken.
Yes Wipe the surface clean
with a soft cloth.
Yes Y Wi Wipe the surface clean th f
Glass with a soft cloth
Yes Clean.
Yes Clean.
Yes Clean.
Yes Yes Clean. Clean
No Try another exposure
level in manual.
No Scan the Chart and check
the image quality again
SAMSUNG ELECTRONICS
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