Xerox 6204 Wide Format Solution Participant Guide
61
Halftone
A halftone is a copy of a photograph in
which intermittent dots and white spaces
simulate tones.
A common example of halftones are the
photographs in newspapers. Some
engineering drawings are also halftone
documents such as drawings created on a
CAD or graphics system, which both use
dot patterns to simulate fill areas.
Line The Xerox 6204 Wide Format has a
special setting for line art and text. The
Line setting should always be used for
images on translucent or transparent
media.
Line output
Copies made in Line mode will be
reproduced with very high contrast:
everything produced with the Line setting
will either be black or white.
Line should not be used when your
document has light gray or low contrast
details, as those details will be lost in the
scanning process.
The Line setting is the preferred setting for
transparent and translucent documents.
Photo
The Xerox 6204 Wide Format has a
special setting for photographs. Before
selecting the Photo setting, ensure that the
image is not actually a halftone. Look
closely to see if the image is made up of
dots. If the image is made up of dots, it is a
halftone and not a photograph.
Assessing Input Quality
The next step in achieving good output is to determine the quality of
your document. You should use three criteria when determining the
quality of a document:
• Level of contrast
• Uniformity of image and background density
• Existence of extraneous markings
Contrast High contrast documents show a large
difference in intensity between the image
and the document background.
Low contrast documents show a small
difference in intensity between the image
and the document background.
Generally speaking, the higher the contrast
between the image and the image
background, the higher the input quality.
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