Sharpness Adjustment - Oki MB760 Service Manual

4.2.6

Sharpness adjustment

If you want to make copy images look softer or sharper, perform the following adjustment. The
adjustment can be made for each of the original modes independently.
<Adjustment Mode (05)>
Code Color mode
7056 Black
7057
7058
7249
Make a test copy and compare the image obtained with the current settings; if necessary, make
adjustment.
Notes:
You have to make adjustment by balancing between moire and sharpness.
<Procedure>
The procedure is the same as that of  P. 4-5 "4.2.2 Density adjustment".
4.2.7 Setting range correction
The values of the background peak/text peak in the range correction at the Black Mode can be
switched to "varied" or "fixed" in the following codes.
If they are fixed, the range correction is performed with standard values.
The values of the background peak affects the reproduction of the background density, and the
values of the text peak affects that of the text density.
<Adjustment Mode (05)>
Color
Text/
mode
Photo
Black 7283
7286
Make a test copy and compare the image obtained with the current settings; if necessary, make
adjustment.
<Procedure>
The procedure is the same as that of  P. 4-5 "4.2.2 Density adjustment".
45641001TH Rev.1
Original mode
Text/Photo The larger the value is, the sharper the image
becomes; while the smaller the value is, the softer
Text
the image becomes.
Photo
The smaller the value is, the less moire tends to
appear.
Custom mode
Acceptable values: 0 to 255 (Default: 128)
Original mode
Text User Custom
7284 7236
7287 7237
Contents
Item to be adjusted
Auto density mode 0: Background peak / fixed
1: Background peak / varied
Manual density mode
(Default: 1)
Oki Data CONFIDENTIAL
Remarks
4-8 /