Oki MB760, Руководство по обслуживанию

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45641001TH Rev.1
4-6 /
Oki Data CONFIDENTIAL
4.2.3 Gamma balance adjustment
The density adjustment at the Black Mode is performed by selecting its density area from the
following: low density, medium density and high density.
<Adjustment Mode (05)>
Color
mode
Original mode
Item to be adjusted Remarks
Text/
Photo
Text Photo
Custom
Mode
Black 7190-0 7191-0 7192-0 7276-0 Low density The larger the value is, the
density of the item to be
adjusted becomes darker.
Acceptable values:
0 to 255 (Default: 128)
7190-1 7191-1 7192-1 7276-1 Medium density
7190-2 7191-2 7192-2 7276-2 High density
Make a test copy and compare the image obtained with the current settings; if necessary, make
adjustments according to the following procedure.
Notes:
Be sure that this adjustment is made after performing  P. 4-4 “4.2.1 Automatic gamma
adjustment”.
<Procedure>
(1) While pressing [0] and [5] simultaneously, turn the power ON.
(2) Key in the code of the mode to be adjusted (original mode) and press the [START] button.
(3) Select the density area to be adjusted with digital keys (0, 1 or 2), and press the [START]
button.
0: Low density
1: Medium density
2: High density
(4) Key in an 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) Press the [FAX] button and then press the [START] button to make a test copy.
If the original mode is Custom, restart the equipment and check if the desired image quality
is attained.
(8) If the desired image quality has not been attained, repeat step (2) to (7).
If the original mode is Custom, repeat step (1) to (7).