You cannot place DCS into EPS and have it separated correctly. DCS is
pre-separated into separate plates, and this information is not put
into an EPS.

There are only two ways to get correct separation when working with
DCS in XPress:
1. Print separations from XPress directly.
2. Save as a new DCS file and use that with an application that
understands DCS, to print separations directly.

DCS is NOT EPS, though confusingly "Save as EPS" gives access to
saving as DCS!

DCS was a format designed only for pre-separated workflows. It cannot
be used in composite workflows.
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