Samsung CLX-9252 Series Service Manual page 440

7.3.11 Uneven density in sub scan di
A. Typical faulty images yp
B. Troubleshooting procedure
Step
1 The periodic 35 mm band has occurred. (
Roll)
2 The surface of the OPC drum is scratche
3 Dirty on the outside.
4 Is abnormality found in the cam gear?
5 The problem has been eliminated through
checks of steps up to 4.
Service Manual
y g
Check item
7. Troubles shooting
rection (Horizontal Band)
(Magnetic
ed.
h the
7-1 43
Action
Change imaging unit.
Change imaging unit.
Clean.
Change transfer belt unit.
 Change LSU.
 Change HVPS board.
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