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Xerox
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DocuMate
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4790
User’s Guide
7-146
Bayer dither scan - Close up
Mixed Content Options (Text and Graphics)
The Bit depth reduction list includes automatic separation options for mixed content documents containing both
text and graphics. These options enable the scanner to evaluate the image for text and graphics, and then apply
threshold to the text regions and a dither pattern to the graphics regions. This retains text clarity while providing
graphic legibility.
The mixed content options are:
• Threshold – Diffusion
• Threshold – Bayer
• Threshold – Halftone
Fill Margin Holes
Select this option if you are scanning pages with punched holes in the margins. This option will fill these holes
with the detected background color in the final scan. The scanner will detect and fill the holes under the
following conditions:
• The size of the hole can be between approximately 4 mm and 12 mm
• The maximum width of the margin is 25.4 mm from the edge of the paper
• The size of the margin is 24.4 mm