[comp.text.tex] TeX fonts on Xerox 4050/90 printers and PostScript

goossens@cernvax.cern.ch (michel goossens) (04/17/91)

Does anybody have some experience with generating TeX fonts for Xerox 4050/4090
printers. We are actually using PostScript output from e.g. dvips, which we 
translate into a IMG bitmap for printing on a Xerox 4050/90. Althought the fonts
look OK on an Apple Laserwriter (which is, it seems, a write black engine) the fonts
come out too faint on the Xerox printers. As we are using the same input file, namely
the PostScript file, I guess we have to generate our 800+ fonts once more for
that printer. Does somebody have the correct Metafont settings for those devices?

Sincere thanks,

Michel Goossens / CERN Geneva Switzerland

anita@brahms.udel.edu (Anita Marie Hoover) (04/19/91)

In article <4918@cernvax.cern.ch> goossens@cernvax.cern.ch (michel goossens) writes:
=>Does anybody have some experience with generating TeX fonts for Xerox 4050/4090
=>printers. We are actually using PostScript output from e.g. dvips, which we 
=>translate into a IMG bitmap for printing on a Xerox 4050/90. Althought the fonts
=>look OK on an Apple Laserwriter (which is, it seems, a write black engine) the fonts
=>come out too faint on the Xerox printers. As we are using the same input file, namely
=>the PostScript file, I guess we have to generate our 800+ fonts once more for
=>that printer. Does somebody have the correct Metafont settings for those devices?
=>

Since you are using Postscript from e.g. dvips, then you are using pk
files.  The pk files you have are generated for a write-black engine.
My understanding is that there are write-white pk files. I was told
these are available through the Unix distribution. This means you would
have to maintain sets of pk files (write-black and write-white).  When
you generate the postscript file you will need to specify which pk
files to use depending on the printer you will be sending the file.
Then you should be able to use your translate program to print to the 
Xerox printers.

Ed Garay (u12570@uicvm.uic.edu) <U12570@uicvm.uic.edu> (04/20/91)

In article <4918@cernvax.cern.ch>, goossens@cernvax.cern.ch (michel goossens)
says:
>
>Does anybody have some experience with generating TeX fonts for Xerox
>4050/4090 printers. We are actually using PostScript output from e.g. dvips,
>which we translate into a IMG bitmap for printing on a Xerox 4050/90.
>Although the fonts look OK on an Apple Laserwriter (which is, it seems, a
>write black engine) the fonts come out too faint on the Xerox printers.
>As we are using the same input file, namely the PostScript file, I guess
>we have to generate our 800+ fonts once more for that printer. Does somebody
>have the correct Metafont settings for those devices?

The Xerox high-speed printers are indeed write-white printers, while
the LaserWriters, LaserJets and others based on Canon engines are write-black.
We have found that some Computer Modern fonts work better with some
modedefs, while other CM fonts look better with other settings.
We have also found differences between the write-white modedefs for
the Xerox printers and those devised for Ricoh-engine based printers.
In fact, the Metafont settings for a given font often vary among Xerox
high-speed printers, or the little Xerox 4045 Model 160 PostScript printer,
which is also a write-white printer.

I will be sending Michel a private message with the modedefs we have
for our high-speed Xerox printers. I am interested in modedefs for
the 10ppm Xerox 4045 Model 160 where we print TeX via PostScript.

Also, in my humble opinion, I think the best way of printing TeX on
the Xerox high-speed printers is via the TeXrox driver, available at
no charge from Thomas J. Reid from Texas A&M University (email addr:
x066tr@tamvm1.bitnet). TeXrox runs on Unix, VAX/VMS, AOS/VS, VM/CMS
and MVS. It is an excellent DVI driver.

--- Ed Garay
    University of Illinois at Chicago, Computer Center
    Internet: u12570@uicvm.uic.edu     Bitnet: u12570@uicvm