Visioneer Patriot 680 - Manual (Page 72)

C ONFIGURING THE O NE T OUCH B UTTONS 65
GrayScale to scan items such as documents containing
drawings or black and white photographs. The scanning
produces an image of up to 256 shades of gray.
Color to scan color photographs and other color items. Color
scans have the largest file size.
Resolution—Drag the slider to the right or left to adjust the
dots per inch (dpi) of the resolution. The maximum resolution
is 600 dpi; the minimum is 50 dpi. The higher the dpi setting,
the sharper and clearer the scanned image. However, higher dpi
settings take longer to scan and produce larger files for the
scanned images.
Brightness and Contrast—Sometimes an item is scanned with
the brightness and contrast set too light or too dark. For
example, a note written with a light pencil may need to be
scanned darker to improve legibility.
Brightness refers to the lightness or darkness of the image. Contrast
is the range between the darkest and lightest portions of the image.
The greater the contrast, the more difference between the lighter
and darker shades in the image.
Drag the sliders to the right or left to adjust the brightness and
contrast of the scanned image. The Contrast setting does not apply
to the Black&White mode.
6. If you want to lock the configuration, click the key icon to change
it from a key to a lock.
7. Click the Page Settings tab to select page settings.