Oki MC770 series, Maintenance Manual

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45584901TH Rev.1
4-17 /
Oki Data CONFIDENTIAL
4.3.13 Sharpness adjustment
This adjustment is applied when images need to be softer or sharper. The adjustment for each
original mode is available.
The performance of this adjustment differs depending on the setting value of 05-7322 or 05-
8102 with “

P. 4-14 “4.3.7 Fine line enhancement switchover”” as shown below.
<Adjustment Mode (05)>
When the value of 7322 (for black) or 8102 (for color/twin color) is “0”
Item to be
adjusted
Color
Twin
color
Black Remarks
General Photo
Present-
ation
Line art
Text 8110-0 8111-0 8112-0 8113-0 8108-0 8118-0 The larger the value is,
the sharper the image
becomes. The smaller
the value is, the softer
the image becomes.
Acceptable values: 0 to
255 (Default: 128)
Graphics 8110-1 8111-1 8112-1 8113-1 8108-1 8118-1
Image 8110-2 8111-2 8112-2 8113-2 8108-2 8118-2
When the value of 7322 (for black) or 8102 (for color/twin color) is “1”
Item to be
adjusted
Color
Twin
color
Black Remarks
General Photo
Present-
ation
Line art
Red Seal
Color
Text/
Others 8110-0 8111-0 8112-0 8113-0 8109-0 8108-0 8118-0 The larger the
value is, the
sharper the image
becomes. The
smaller the value
is, the softer the
image becomes.
Acceptable
values: 0 to 255
(Default: 128)
Thin text 8110-1 8111-1 8112-1 8113-1 8109-1 8108-1 8118-1
Image 8110-2 8111-2 8112-2 8113-2 8109-2 8108-2 8118-2
<Procedure>
The procedure is the same as that of

P. 4-9 “4.3.2 Gamma balance adjustment (Black Mode)”.