Samsung CLX-9250ND - Low Image Density

7. Trouble
s
A. T
yp
ical fault
y
ima
g
es
7.3.9 Low image density
yp y g
B. Troubleshooting procedure
Step Section Check item
1 Toner
Cartridge
Toner is empty or toner exh
a
is blocked.
2 LSU One of 2 beams is fail. Print
pattern and check 1*4 patte
r
the image of S600 in the ne
x
3 Imaging Unit Toner carriers and toner lev
e
in imaging unit. Check weig
h
unit. If less than 2150g ima
g
needs replacement
needs
replacement
.
4 Transfer belt
unit
Transfer belt unit makes po
s
with plates on rails.
5 Is abnormality found in the
c
6 Auto Color
Calibration
Execute the Normal TRC C
o
TRC Control, or Full TRC C
o
(Service Mode > Diagnostics
(Service
Mode
>
Diagnostics
Management > Color Tone
A
Normal TRC Control > Exe
c
Then check if the image de
n
improved.
Service Manual
CLX-9250/9350 series
7-1
s
hooting
Result Action
a
ust section Yes Change toner cartridge.
the S600
r
n. (Refer to
x
t page)
Yes Change the LSU.
e
l is too low
h
t of imaging
g
ing unit
Yes Check the high voltage
terminal. Replace the
imaging unit.
s
itive contact No Check and correct
contacts.
c
am gear? Yes Change transfer belt unit.
o
ntrol, Quick
o
ntrol
s>Color
Yes Go to next step.
s
>
Color
A
djustment >
c
ute Now).
n
sity is
To be continued on next page…
SAMSUNG ELECTRONICS
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