Samsung CLX-9250ND - Gradation Reproduction Failure

7. Trouble
s
A. Typical faulty images
7.3.13 Gradation reproduction failur
e
B. Troubleshooting procedure
Step Section Check item
1 Warning display The maintenance call m
a
displayed on the panel.
2 Photo / density Original type and scree
n
are selected properly.
3 Imaging unit Dirty on the outside.
4 LSU The surface of the LSU
w
dirty.
5
St t
IDC t t l i
5
St
a
t
e
confirmation 
Level history
IDC
ou
t
pu
t
va
l
ue
i
s arou
6 Auto Color
Calibration
Execute the Normal TR
C
Quick TRC Control, or
F
Control (Service Mode >
Control
(Service
Mode
>
Diagnostics > Color Ma
n
> Color Tone Adjustme
n
Normal TRC Control >
E
Now). Then check if the
density is improved.
Service Manual
CLX-9250/9350 series
7-1
s
hooting
e
Result Action
a
rk is Yes Take action according to the
warning code shown on the
state confirm screen.
n
pattern No Change screen pattern.
Yes Clean.
w
indow is Yes Clean with cleaning jig.
d43V
N
Cl IDC d
n
d
4
.
3V
N
o
Cl
ean
IDC
sensor an
d
execute the image
stabilization. Check transfer
belt for damage and correct
as necessary.
C
Control,
F
ull TRC
>
Yes Go to next step.
>
n
agement
n
t >
E
xecute
image
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70
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