Participant Guide Xerox 6204 Wide Format Solution
62
Image
density
Uniform density documents show a
consistent darkness throughout the
document. The lines in one area of the
document are the same darkness as the
lines in another area of the document, and
the image background is the same level of
darkness throughout the document.
Documents with a non-uniform density
have lines or a background of varying
degrees of darkness.
Generally speaking, documents with a
uniform background and a uniform image
density are higher quality than documents
with non-uniform image or background
densities.
Extraneous
markings
Finally, when evaluating the quality of a
document it is important to note extraneous
markings. Extraneous markings are lines
and images not intended to be on the
document such as speckles, stains, or
stray marks.
Documents with a high degree of contrast, a uniform image and
background density, and few extraneous markings are considered
to be high quality input.
Obtaining good quality copies from good quality documents
requires no special action beyond selecting the correct setting for
document type.
Low contrast documents, documents with faded or variable image
densities, documents with a faded or variable background density,
and documents with extraneous markings are considered poor
quality documents.
Common examples of poor quality documents are:
• Overexposed or underexposed bluelines
• Old bluelines (folded bluelines)
• Documents containing both dark images and light images
• Documents containing light pencil notes
• Stained documents
• Documents with a specked background
• Taped, folded, or creased documents
• Documents treated with correction fluid
It is not always possible to completely compensate for poor quality
originals. Although the Xerox 6204 Wide Format has powerful
software for removing the more obvious defects, output quality will
always to some degree be a reflection of your input document.
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