and you type
70
% in the adjacent box, Prinergy overprints the
object.
Set Rich Black to Overprint
Note: The
Set Rich Black to Overprint
check box is available only when
the Color Matcher JTP is used.
Select this check box to overprint all rich black objects (that is,
K=100%, and at least one of C, M, and Y has more than 0%
tint). When the
Set Rich Black to Overprint
check box is
selected, the
Set Black to Overprint
check box is automatically
selected.
Note: Overprinting rich black may result in high ink coverage in some
areas, depending on the percentage of tint in the C, M, and Y channels.
Set Overprint CMYK White to Knock Out
Select this check box to knock out all white objects.
White is considered white when black (K) is less than 0.9%—
that is, C=0%, M=0%, Y=0%, and K<0.9%.
Sometimes a graphic designer inadvertently defines white
(which is really the absence of ink) to be overprinted, which
makes white objects invisible when the file is RIPed. For white
to be visible, it must be knocked out.
If you want all white objects to be overprinted, clear the
Set
Overprint CMYK White to Knock Out
check box.
Enable Gray Overprint
Note: The
Enable Gray Overprint
check box is available only when the
Color Matcher JTP is used.
The
Enable Gray Overprint
check box affects grayscale objects
that are set to be overprinted. The Color Matcher JTP
represents the overprint mode of grayscale objects in a way
that the RIP can process. By default, this check box is selected.
When the
Enable Gray Overprint
check box is cleared, the
Color Matcher JTP doesn't affect the overprinting of grayscale
objects. This results in knockout behavior for CMYK objects
below the grayscale object and may be the preferred behavior
in some situations.
Note: You can view the overprint mode in the Enfocus PitStop software
and view the results in the Virtual Proofing System software or in the
Acrobat software.
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Chapter 10—Refining
