[comp.laser-printers] LaserWriters .vs. PC software

holtz@cascade.carleton.CDN (Neal Holtz) (07/28/87)

We have a LaserWriter attached to a PC-clone via RS232C (soon to be
networked, in some manner, but will remain serially attached).  We
are using Wordstar 4.0, Wordperfect, TeX and other stuff that emits
straight PostScript.  Problem is that Wordstar only uses Diablo
emulation mode, while everything else sends more or less well-behaved
PostScript (less, in the case of WordPerfect).  All this seems to require
continually changing that silly little rotary switch in the back, to switch
from Diablo emulation mode and back again.

I can't beleive that there isn't a hook into that emulation mode from
LaserWriter PostScript, except I can't find it in my (rather old)
documentation.  Anybody know what it is: i.e., how can I get at the
Diablo emulator without touching the rotary switch?  The alternative
seems to be writing a Diablo emulator in PostScript; if my first
question can't be answered, does anyone have such a beast that they
would be willing to share?

In a related question, it doesn't seem like it would be too difficult
to write a replacement RS232 driver for PC's that would honour
XON/XOFF and DTR protocols, and would pop up little window on the
screen to display messages from the LaserWriter.  Anyone know of
such a thing?

Neal Holtz
Carleton University
Ottawa, Ontario
(613) 723-0192