Toshiba e-STUDIO451c 用户手册

e-STUDIO281c/351c/451c ADJUSTMENT

June 2005 © TOSHIBA TEC

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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.

<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.

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