Samsung CLX-9252 Series Service Manual page 425

7.3.4 Foggy background
A. Typical faulty images yp
B. Troubleshooting procedure
Step
1 HV terminal of imaging unit is dirty.
2 Dirty on the outside due to scattered tone
3 Original is damaged or dirty.
4 DADF does not lie flat.
5 Original glass is dirty.
6 Shading sheet Glass is dirty.
7 Mirror is dirty.
8 Lens is dirty.
9 Exposure lamp is dirty.
10 Reflectors are dirty.
11 The problem is eliminated when the imag
produced in the manual exposure setting
12 The problem has been eliminated through
checks of steps up to 10.
Service Manual
y g
Check item
7. Troubles shooting
er
ge is
.
h the
7-1 28
Action
Clean the terminal.
Replace imaging unit with new one
Change original.
Change DADF if it is deformed or
hinges are broken.
Wipe the surface clean with a soft
cloth.
Wipe the surface clean Glass with a
soft cloth
Clean.
Clean.
Clean.
Clean.
Try another exposure level in manual.
Scan the Chart and check the image
quality again
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