Oki ES9160, Maintenance Manual

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6
© 2012 OKI DATA CORPORATION All rights reserved ES9160 MFP / ES9170 MFP
SETTING / ADJUSTMENT
6 - 33
6.6 Image Quality Adjustment (Scanning Function)
6.6.1 Gamma balance adjustment
The density is adjusted by adjusting the gamma balance. The adjustment is performed by selecting its
density area from the following: low density, medium density and high density.
<Adjustment Mode (05)>
Notes:
Changing the adjustment setting influences the adjacent density area slightly.
E.g.: When the value of the medium density is larger, the adjacent areas in the low density and
high density range will become slightly darker.
<Procedure>
(1) While pressing [0] and [5] simultaneously, turn the power ON.
(2) Key in the code corresponding to the desired original mode and press the [START] button.
(3) Key in the value corresponding to the density area to be adjusted (0, 1 or 2) and press the
[START] button.
0: Low density (L), 1: Medium density (M), 2: High density (H)
(4) Key in the adjustment value. (To correct the value once keyed in, press the [CLEAR] button.)
(5) Press the [OK] or [INTERRUPT] button to store the value in memory. The equipment goes
back to the ready state.
(6) For resetting the value, repeat step (2) to (5).
(7) Turn the power OFF and then back ON. Then perform scanning.
(8) If the desired image has not been attained, repeat step (2) to (7).
Black
Gray
Scale
Item to be
adjusted
Remarks
Original mode
Text/
Photo
Text Photo
User
custom
7485-0 7486-0 7487-0 7480-0 7488-0 Low density The larger the value is, the density of the
item to be adjusted becomes darker.
Acceptable values:
0 to 255 (Default: 128)
7485-1 7486-1 7487-1 7480-1 7488-1 Medium density
7485-2 7486-2 7487-2 7480-2 7488-2 High density