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. 8-14.)

The availability of brightness and contrast settings are as follows, according to the mode setting on the [Basic] tab sheet.

 

 

 

 

Setting

 

 

 

 

 

 

 

 

 

 

 

Auto

Brightness

Contrast

Side Back Use Brightness

Side Back Use Contrast

 

 

 

 

 

 

 

 

Black and White

 

 

 

 

 

 

 

 

Error Diffusion

Scanning

 

 

 

 

 

 

Advanced Text

 

 

 

 

 

 

Advanced Text

 

Enhancement

 

 

 

 

 

Modes

Enhancement II

 

 

 

 

 

 

 

 

 

 

 

256-level Gray

 

 

 

 

 

 

 

 

 

24-bit Color

 

 

 

 

 

 

 

 

Auto Color Detection

 

 

 

 

 

 

 

: available for setting, : not available for setting, or auto

[Brightness] Tab Sheet Settings

You can configure the following settings on the [Basic] 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.

Chapter 8 ISIS/TWAIN Driver Settings

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.

When the [Auto] check box is selected, the slider automatically selects a brightness level to be used for automatic adjustment.

Contrast

This is enabled when the scanning mode is [Black and White]. The brightness and contrast are adjusted according to the document properties.

[Use Back Side Brightness] Check Box

If the brightness of the front and back of the document pages is different, select this check box to adjust only the brightness of the back side.

[Use Back Side Contrast] Check Box

If the contrast of the front and back of the document pages is different, select this check box to adjust only the contrast of the back side.

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