Gradation Reproduction Failure - Samsung CLX-9350ND Service Manual

7.3.13 Gradation reproduction failure

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Warning display
2 Photo / density
3 Imaging unit
4 LSU
5 5 State St t
confirmation 
Level history
6 Auto Color
Calibration
Service Manual
CLX-9250/9350 series
7. Troubles
Check item
The maintenance call ma
displayed on the panel.
Original type and screen
are selected properly.
Dirty on the outside.
The surface of the LSU w
dirty.
IDC output value is arou IDC t t l i
Execute the Normal TRC
Quick TRC Control, or F
Control (Service Mode > Control (Service Mode >
Diagnostics > Color Man
> Color Tone Adjustmen
Normal TRC Control > E
Now). Then check if the
density is improved.
7-1
shooting
e
Result
ark is Yes
n pattern No
Yes
window is Yes
nd 4.3V d 4 3V No N
C Control, Yes
Full TRC
> >
nagement
nt >
Execute
image
70
Action
Take action according to the
warning code shown on the
state confirm screen.
Change screen pattern.
Clean.
Clean with cleaning jig.
Cl Clean IDC sensor and IDC
execute the image
stabilization. Check transfer
belt for damage and correct
as necessary.
Go to next step.
To be continued on next page...
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