Xerox DOCUMATE 252 User Manual page 92

DocuMate 252 Scanner User's Guide
To adjust the Custom Document settings:
1. Click the Custom Document button and click the Define
button.
The dialog box for Custom settings appears.
Mode—Click the arrow and choose a scan mode.
Black and White—The scanning pixels are all the same
size and are either black or white. Use this setting for
letters, memos, pen and ink drawings, and other black and
white material. This setting produces the smallest file size
for scanned items.
256-Level Gray—Scans the image using up to 256 true
shades of gray. Use this setting to scan black and white
photographs and other higher quality black and white
images. You can also scan a color photo with this setting to
turn its colors into gray shades. The file size is about one
third the size of a color scan.
24-Bit Color—Scans the image in full color. Use this
setting to scan color photographs and other color images.
The file size is the largest of the scan mode options.
Dither—Only available if the Mode is Black and White. Click
the menu arrow and choose a Halftone option or Diffusion from
the list. Halftone converts the image so it appears to consist of
gray tones. Halftones produce simulated gray tones by using
black and white pixels of different sizes and is often used to
produce newspaper and magazine images. Use this setting for
lower resolution black and white images. The halftone settings
also produce small file sizes. Diffusion also converts the image
to gray tones, but diffuses the grays to nearby pixels to give the
image a grainy, filmlike texture. Diffusion is useful for viewing
images on a black-and-white screen.The preview image shows
the effect of your Dither selection so you can see which one is
best for scanning.
Dots per inch—Click the menu arrow and choose a resolution
(dpi). Your DocuMate 252 scanner can scan at up to 600 dpi.
Scanning from PaperPort
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