Roland ColorChoice Ver. 4.5 - Manual (Page 51)

Using Flatten Transparency converts all objects using the transparency feature to object that are
compatible with Illustrator 8 and the like, and so the cutting line is not affected. This lets you eliminate
the limitations on printing and cutting.
However, this may displace the clipping mask (especially the mask layer). (At Roland DG Corp. we
consider this an issue with Illustrator 9.0) When you use Flatten Transparency, you need to check
whether the original design is retained completely. It may be necessary to make the setting for the mask
again. For this reason, we recommend that only persons familiar with the operation of Illustrator 9.0 use
this method.
What Color Stitching Is and How to Avoid It
The transparency feature in Illustrator 9.0 divides objects and converts some of them to raster data (image
data). Color stitching refers to subtle differences in coloring that occur at the borders of divided objects. The
functionality of Illustrator 9.0 may make it difficult to avoid this problem.
If color stitching is a problem, first go into Roland ColorChoice and try setting "Bitmap rendering intent" and
"Vector rendering intent" to the same value.
If the problem persists, go into Illustrator 9.0, use the File menu to open Document Setup, and from the pop-
up menu, select Transparency. Move the Quality/Speed slider either all the way to the left or to a position
one or two tick to the right of center. Note that you will not be able to perform printing and cutting at the same
time while at this setting.
Simulating Overprinting
Illustrator 9.0 lets you view an on-screen preview of overprinting using spot-color ink and the like. You can
also simulate this with a composite printer. These are also types of transparency features, and they affect
cutting lines as well. You can turn off simulation with a composite printer by going into Illustrator 9.0,
displaying the Print dialog box, and selecting the check box for "Ignore Overprinting in Composite Output."
51