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in <8704171902.AA14204@brillig.umd.edu> "Abhay_K._Bhushan.osbunorth"@XEROX.COM:
> The user should also note that the printers don't always print at the
> rated speed.  This is especially true when it comes to the printers
> using the advanced capabilities of page description languages such as
> Postscript.  For example, scan converting contour fonts, decompressing
> bit maps in software, and rotating or scaling  graphics all take time,
> and slows the printer down to some thing like 1 or 2 pages/minute or
> less.  

Where I used to work, our Xerox 9700 only printed 120 ppm when doing
computer program listings in a constant width font.  When printing
troff documents or graphics, its speed fell below 100 ppm, and was as
slow as 60 ppm.  PostScript isn't the only thing that runs slower when
it's working hard.

> The Commercial Set of Interpress provides for high throughput printing by
> using bit-map fonts, and pre-conversion of complex graphics into
> compressed bit-maps, while the Professional Graphics Set  of Interpress
> provides the functionality of Postscript.

When will the Professional Graphics Set be available commercially?

Pat Wood
Pipeline Associates, Inc.
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