Xerox DocuMate 752 - Manual (Page 44)

Xerox Scanner User’s Guide 40
Scanning from TWAIN
Adjusting the Resolution
Resolution determines the amount of detail you can see in the scanned
image. The resolution setting for a scan is in dots-per-inch (dpi). The
higher the resolution, the finer the details. However, higher dpi settings
also take longer to scan and produce larger file sizes. For black and white
documents, 75 to 150 dpi will make a copy of similar quality to the
original. If you are scanning photographs to make copies, 150 to 200 dpi
will make a direct size copy of similar image quality to the original. You
would use a higher dpi setting to enlarge a picture from the original size.
To adjust the resolution:
1. To use one of the preset resolutions for typical scanned items, click
one of the options in the list.
2. To set the resolution manually, drag the Resolution slider to the left
to decrease the resolution or to the right to increase it.
3. Click Reset to return the resolution to its original setting.
The resolution panel also includes an advanced setting for Moiré
patterns. Moiré patterns are wavy, rippled lines that sometimes appear on
the scanned images of photographs or illustrations, particularly
newspaper and magazine illustrations. To scan the image and limit or
eliminate moiré patterns, select the Reduce Moiré option. This option is
not available for high resolution settings.