Toshiba e-studio281c, Service Handbook, Page: 310 / 678

e-STUDIO281c/351c/451c © 2005 - 2008 TOSHIBA TEC CORPORATION All rights reserved
ADJUSTMENT
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3.7.5 Judgment threshold for ACS
The judgment level is adjusted for the automatic identification of whether the original set on the glass is
black or color. Namely, this is to adjust the judgment level used when “Auto Color” is selected at color
modes. The adjustment is available for both the manually-set original and the original used with the
RADF.
<Adjustment Mode (05)>
<Procedure>:
Procedure is same as that of "3.7.2 Density adjustment (Black Mode)".
3.7.6 Sharpness adjustment
If you want to make scan images look softer or sharper, perform the following adjustment. The adjust-
ment can be made for each of the color modes and original modes independently.
<Adjustment Mode (05)>
Note: Note:
You have to make adjustment by balancing between moire and sharpness.
<Procedure>
Procedure is same as that of "3.7.2 Density adjustment (Black Mode)".
Code Item to be adjusted Contents
1065 Judgment threshold
for ACS when origi-
nal is set manually
The larger the value is, the more an original tends to be judged as black even
at the Auto Color Mode. The smaller the value is, the more it tends to be
judged as color.
Acceptable values: 0 to 255 (Default: 70)
1066 Judgment threshold
for ACS when origi-
nal is set on RADF
Code Color mode Original mode Contents
1086 Full Color Text • The larger the value is, the sharper the image becomes;
while the smaller the value is, the softer the image becomes.
• The smaller the value is, the less moire tends to appear.
• The acceptable values are 0 to 31.
The center value is 16.
However, 0 is equivalent to the center value.
1087 Printed Image
1088 Photo
840 Black Text/Photo
841 Text
842 Photo
843 Gray Scale -