Samsung SCX-8030ND Series Service Manual page 414

7.3.10 Uneven density in sub scan di
A. Typical faulty images yp y
B. Troubleshooting procedure
Step Section
1 Image Check
2 Imaging unit
3
4
Service Manual
SCX-8030/8040 series
7.Troubles
g
AaB
AaB
AaB AaB
AaB
AaB
AaB
Check item
The periodic 35 mm ba
occurred. (Magnetic Ro
The surface of the OPC
scratched.
Dirty on the outside.
The problem has been
through the checks of s
4 4 .
shooting
rection (Horizontal Band)
bCc
bCc
bCc bCc
bCc
bCc
bCc
m Result
and has Yes
oll)
C drum is Yes
Yes
eliminated No
steps up to
7-1 21
Action
Change imaging unit.
Change imaging unit.
Clean.
 Change LSU.
 Change HVPS board.
SAMSUNG ELECTRONICS
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