8825/8830 DDS User Guide/22
Making copies
Adjusting Image Quality
Several adjustments are available to correct the image for problems in the
original document.
The key to effectively using the Image Quality adjustments is to first classify
your documents as Line, Mixed, or Photo. Then, classify them according to
the characteristics of the foreground image and background.
Line documents contain lines or text against a highly contrasted
background.
Mixed documents contain both line elements and photo elements, or
halftone images.
Photo documents are continuous-tone or grayscale images.
Note: for Photo documents, no background suppression is allowed.
Background Suppression is automatically set to
Off.
Set the Type setting to agree with one of the three classifications.
Next, for Line or Mixed documents, determine the background.
Is the background white, light or dark?
Are the lines or text black or colored?
Finally, determine if the document is inverted (white or light foreground
against dark background). If the document is inverted, refer
to
Special
features and making special copies – Transform Key
for instructions on the
INVERT function.
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