[comp.lang.postscript] Ultrascript Bug?

gillies@m.cs.uiuc.edu (08/31/90)

Our Imagen Ultrascript Interpreters (4.1T Rev. B IP/II) have a serious
problem.  They are running on a 5320 and 3320 imagen printer.

I produce document with the following software:

Machine:  Macintosh II, Macintosh SE/030
Software:  MS-Word 4.0, Canvas 2.0
Printing:  System 6.0 printing tools

But when I print them out, using the system 6.0 laser prep files,
occasionally a page is printed almost entirely in 50% grey.  That is,
every character comes out in a half-toned light shade of grey.  Lines
are drawn correctly.  What is going on here?  Has anyone else
experienced this problem with an ultrascript interpreter?  If so, is
it really an ultrascript problem, or perhaps is it a problem with the
system 6.0 printing tools?  The problem sometimes goes away on
subsequent pages.