User Guide

8-14
Chapter 8 ISIS/TWAIN Driver Settings
[Brightness] Tab Sheet
On the [Brightness] tab sheet you can adjust brightness and
contrast for scanning, and access gamma settings. The
availability of brightness and contrast settings depends on the
mode setting of the [Basic] tab sheet.
Hint
If all of the settings on the [Brightness] tab sheet are disabled, the
gamma setting is set to Custom. (See “[Gamma Settings] Dialog
Box” on p. 8-15.)
The availability of brightness and contrast settings are as
follows, according to the mode setting on the [Basic] tab
sheet.
✔ : available for setting, – : not available for setting, or auto
■ [Brightness] Tab Sheet Settings
You can configure the following settings on the
[Brightness] tab sheet.
[Auto] Check Box
This is enabled when the scanning mode is [Black and
White]. The brightness and contrast are adjusted according
to the document.
Brightness
Adjusts the brightness of images to be scanned.
Hint
• If images are too dark or if text on the back of a sheet bleeds
through, you can drag the slider to the right to increase the
setting.
• If images are too light, drag the slider to the left to decrease
the setting.
Setting
Auto Brightness Contrast Enable Back Side Brightness Enable Back Side Contrast
Scanning Modes
Auto Color Detection – ✔✔✔✔
Black and White ✔✔✔✔✔
Error Diffusion – ✔✔✔✔
Advanced Text
Enhancement
– ✔ –––
Advanced Text
Enhancement II
– ✔✔ ––
256-level Gray – ✔✔✔✔
24-bit Color – ✔✔✔✔