Samsung CLX-9250ND - Page 508

7. Trouble
s
A. T
yp
ical fault
y
ima
g
es
7.3.11 Uneven density in sub scan di
yp y g
B. Troubleshooting procedure
Step Section Check ite
m
1 Image Check The periodic 35 mm b
a
occurred. (Magnetic R
o
2 Imaging unit The surface of the OP
C
scratched.
3 Dirty on the outside.
4 Image transfer
belt unit.
Is abnormality found in
gear?
5 The problem has been
through the checks of
s
4.
Service Manual
CLX-9250/9350 series
7-1
s
hooting
rection (Horizontal Band)
m
Result Action
a
nd has
o
ll)
Yes Change imaging unit.
C
drum is Yes Change imaging unit.
Yes Clean.
the cam Yes Change transfer belt unit.
eliminated
s
teps up to
No  Change LSU.
 Change HVPS board.
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