To adjust brightness and contrast in a scanning specification:
On the tab of the Administration module, expand .
Click .
In the right pane, double-click the appropriate scanner.
Select > .
Select a scanning specification and click .
Select > .
Under , move the slider to the left to decrease brightness (for images that are particularly light) or to the right to increase brightness (for images that are particularly dark). The default setting is suitable for documents with black text on a white or lightly colored background.
Under , move the slider to the left to decrease contrast or to the right to increase contrast. Higher settings are better for documents with solid lines. The default setting is suitable for documents with black text on a white or lightly colored background.
Optional: Select . If an image has a background color at the top of the page that differs from the background color on the rest of the page, the resulting image can be of poor quality. In photo mode, this problem is avoided because the scanner constantly readjusts itself during scanning. The disadvantage is that lines and characters can become rough or uneven, which negatively affects character recognition.
Optional: Select to have the brightness automatically adjusted.
Optional: Select to have the contrast automatically adjusted.
If you use Virtual ReScan (VRS), the selected VRS profile controls the brightness, contrast and auto brightness settings. These options are disabled in the scanning specification, and the values shown are those defined in the VRS profile.