Xerox Nuvera 200, Руководство пользователя

Страница: 68 / 98

Xerox Card Scanner 200 User’s Guide 63
Scanning from the TWAIN Interface
TWAIN Interface Options
• Mode —Select a scanning mode:
Black&White to scan in black and white. Use this setting for letters, memos, and other black and white
material.
Grayscale
to scan items such as documents containing drawings or black and white photographs. You
can also scan a color document to turn its colors into gray shades.
Color to scan magazine articles, photographs, and other color images in full color.
• Resolution —The maximum resolution is 600 dpi; the minimum is 75 dpi. This option determines the
amount of detail you can see in the scanned image. 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
—Sometimes an image 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. Increasing or decreasing the brightness makes the scanned image lighter or darker.
•
Contrast—
The difference between the lighter and darker portions of the image. Increasing the
contrast emphasizes the difference between the lighter and darker portions, decreasing the contrast
de-emphasizes that difference.
•
AutoCrop to Length
—Select this option to let the scanner automatically determine the length of the
item being scanned and crop the image to the bottom of the page.
• AutoCrop to Original —Select this option to let the scanner automatically determine the size of the
item being scanned.
When using the AutoCrop to Original option, always use the paper guides on the scanner so the page is
not skewed.
• Deskew —Select this option to let the scanner detect a page that is scanned through at an angle. The
software will attempt to straighten the final image. However, if the page fed through at too great of an
angle the software may not be able to straighten it fully. In that case, rescan the page.
• Reduce Moiré Patterns —Moiré patterns are wavy, rippled lines that sometimes appear on the
scanned images of photographs or illustrations, particularly newspaper and magazine illustrations.
Selecting
Reduce Moiré Patterns will limit or eliminate moiré patterns in the scanned image. This
option is only available for the Grayscale or Color Mode low resolutions.