Guide for Windows

CONTENTS

GLOSSARY

INDEX

Chapter 4

Scanning Devices

Note: When changing the Paper Size setting, the preview area will

be cleared and all setting values are reset. When setting the

preview area size larger than the Paper Size, the preview area

size will be adjusted to the Paper Size.

Adjusting Threshold Setting

The Threshold slider can be used to adjust the threshold value (the

demarcation between black and white) of black and white images. Images are

collection of data assigned varying brightness values. Grayscale and Color

images express the brightness with 8 or 12 bit values whereas Black and

White images express the brightness with only two values, black (0) and white

(255). Accordingly, a point has to be determined either black or white. This

point is called the threshold value. By changing the threshold value, you can

alter the appearance of image. The default setting is 128.

To adjust threshold value, drag the slider or input the value directly into the

box (click the box and type the number from 0 to 255) in FB1200S tab.

Selecting the Descreen

Moiré patterns occasionally appear when items printed at high resolutions are

scanned. To reduce this phenomenon, scan photographs and other high-

resolution prints with the descreen activated. Shut it off to scan lower

resolution items, such as newspapers, books and magazine text. The default

setting is "Off."

• The Descreen is unavailable when the scanning resolution is set for 601

dpi or more.

• Descreen returns to the previous setting when a scanning job is started

with a parent software application that cannot display the ScanGear

CS-S operation panel.