Samsung SCX-8030ND Series - White Spot

7.Trouble
s
A. T
yp
ical fault
y
ima
g
es
7.3.3 White spot
yp y g
B Troubleshooting procedure
Step Section Check ite
m
1 Image check There are void areas a
t
side or high density se
c
2 There is void area at t
h
section
B
.
Troubleshooting
procedure
section
.
3 Imaging unit Developing bias conta
c
makes good connectio
n
4 The surface of the OP
C
scratched or contamina
scratched
or
contamina
5 Dirty on the outside.
6 Toner cartridge Foreign matter or cake
the toner cartridge.
7 Transfer roller unit Transfer roller is dirty
o
scratched.
8 Paper path There is foreign matter
path.
9 HV terminal HV output is abnormal.
10 DADF DADF pad is dirty.
11 Original glass Original glass is dirty.
Service Manual
SCX-8030/8040 series
7-1
s
hooting
m
Result Action
t
the front
c
tion.
Yes 1. Change paper to one
just
unwrapped from its
package.
h
e rear side Yes
2. Print the image on
recycled paper mode.
c
t terminal
n
No Clean contact terminal
and check terminal
position.
C
drum is
ated
Yes Change imaging unit.
ated
.
Yes Clean.
d toner in Yes Remove foreign matter.
o
r Yes Change 2
nd
image
transfer roller unit.
on paper Yes Remove foreign matter.
Yes Change the HVPS board.
Yes Clean.
Yes Wipe the surface clean
withasoftcloth
SAMSUNG ELECTRONICS
Version 0.05
13
with
a
soft
cloth
.