User's Manual

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Guide to Printing Using Xerox Production Print Services 9-23
• Trapping: Compensates for misregistration occurring at
the printer. When color planes are not registered exactly
with one another, white gaps and regions of shifted hue
can appear at object boundaries. Turn Trapping on by
selecting the checkbox for [On] or [Printer Default]. Select
an option for Fast Scan, either Pixels, or Printer Default.
Select an option for Slow Scan, either Pixels, or Printer
Default. Select [Ok] when complete.
• Black Overprint: Prevents the background of a black
object from being removed when being printed over color.
When there is any misregistration, this background
removal causes a band of white to be visible at the edges
of the black objects that are printed directly onto colored
areas. Select [On] to eliminate this white space, or select
[Off].
• Lightness: A slider lets you select a value that
determines the lightness or darkness of the printed
output.
– A value of -100 causes the output to appear black.
– A value of 100 causes the output to appear white.
– A value of 0 (zero) causes no change in the output.
NOTE: The output resulting from these selections may be
affected by the content of the original image.
• [Contrast]: A slider enables you to increase or decrease
the variation between light and dark areas of the output.
Higher contrast values increase the light and dark
contrast; lower values decrease it.
– A contrast value of -100 causes the output to appear a
solid midtone gray.
– A contrast value of 100 causes the output colors to
use either full color or no color for cyan, yellow,
magenta, and black, depending on the content of the
original image.
Example: If a color such as a pastel is below a
threshold level, it may print as no color if a contrast
value of 100 is specified.
• Saturation: A slider lets you specify the amount of color
that is used to print the output.
– A value of -100 causes the output to appear grayscale.
– A value of 100 prints the output to appear in all bright
colors.
– A value of 0 (zero) causes no change to the output.