Konica Minolta micropress release 6 User Manual
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Edit Trapping Parameters Dialog
These controls determine the dimensions and colors of traps to
hide misregistration errors. In the Separations Setup dialog , you
can specify colors that should not be trapped.
hide misregistration errors. In the Separations Setup dialog , you
can specify colors that should not be trapped.
Item
Definition
Name
Name of the trapset (limited to 32 characters).
Centerline luminance threshold
Determines whether
centerline traps are
generated. Traps are usually
made by spreading lighter
colors under darker ones. If
enabled, and the luminance of
the two colors is within the
percentage difference in the
text box, then a centerline trap
is generated. Setting a small
threshold provides limited centerline trapping. In a centerline trap, both objects
are spread half the distance, producing a trap centered on the boundary.
centerline traps are
generated. Traps are usually
made by spreading lighter
colors under darker ones. If
enabled, and the luminance of
the two colors is within the
percentage difference in the
text box, then a centerline trap
is generated. Setting a small
threshold provides limited centerline trapping. In a centerline trap, both objects
are spread half the distance, producing a trap centered on the boundary.
Max trap width/stroke width ratio
Ensures trap width is never more than a certain percentage of a line's width.
Useful because choking might make a line too thin or expand a character
enough to visibly change its shape, especially with very fine detail in designs
and moderately large traps.
Useful because choking might make a line too thin or expand a character
enough to visibly change its shape, especially with very fine detail in designs
and moderately large traps.
Auto choke superblack
Controls the behavior of objects containing both black and some additional tint.
Adding a tint is often used to generate a rich, dark black, but may, with
misregistration, yield a fringe of color around the object. Check this box to
choke the colored separations back, so that the edge of the object is not
"superblack," but still looks black, even in cases of registration error.
Adding a tint is often used to generate a rich, dark black, but may, with
misregistration, yield a fringe of color around the object. Check this box to
choke the colored separations back, so that the edge of the object is not
"superblack," but still looks black, even in cases of registration error.
TrapWorks excludes one special case from treatment as superblack
—
when
the color is specified as 100% of all process colors
—
because they are almost
certain to be some kind of registration mark. TrapWorks traps only superblack
objects where one of C, M, or Y is less than 100%.
objects where one of C, M, or Y is less than 100%.
Trap widths
Holds control settings for the width of a trap when generated, each setting
corresponding to a situation where special treatment is desired. Values
entered depend mostly on printing process error.
corresponding to a situation where special treatment is desired. Values
entered depend mostly on printing process error.
Normal trap width
Sets overall trapping width. Use generally except for special cases below.
Black trap width
For black objects where a trap will, at worst, generate a superblack.
Image & vignette trap width
Alters the weight of a trap against an image or vignette.
Text < __ pts
trap width
trap width
Set separate trap width for text, defined as any text below the point size
entered in the text edit box. Ensures that fine serifs and similar decorations are
not lost, while allowing full-sized trap for heavier type.
entered in the text edit box. Ensures that fine serifs and similar decorations are
not lost, while allowing full-sized trap for heavier type.
Units
Specifies units used for all settings.