Samsung CLX-9252 Series Service Manual page 442

7.3.13 Gradation reproduction failure
A. Typical faulty images
B. Troubleshooting procedure
Step
1 The maintenance call mark is displayed o
panel.
2 Original type and screen pattern are selec
properly.
3 Dirty on the outside.
4 The surface of the LSU window is dirty.
5 5 IDC IDC output value is around 4.3V t
6 Execute the Normal TRC Control, Quick T
Control, or Full TRC Control (Service Mod
Diagnostics > Color Management > Color Diagnostics > Color Management > Color
Adjustment > Normal TRC Control > Exec
Now). Then check if the image density is
improved.
Service Manual
7. Troubles
Check item
t l i d 4 3V
shooting
e
on the Take action according to the warning code
shown on the state confirm screen.
cted Change screen pattern.
Clean.
Clean with cleaning jig.
Cl Clean IDC sensor and execute the image IDC
stabilization. Check transfer belt for
damage and correct as necessary.
TRC Go to next step.
de >
r Tone r Tone
cute
7-1 45
Action
d t th i
To be continued on next page...
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