[fa.laser-lovers] Compugraphics typesetters

laser-lovers@uw-beaver (03/20/85)

From: bader@cmu-psy-b (miles bader)

I am sending this through a friend, and am personally unable to easily
read this board.  Replies can be sent to the sender of this message, or to
AD0R@cmu-cc-tb. I also should be able to hear of replies posted through
my friend.

I an the entertainment editor for our campus (CMU) newspaper, The Tartan.
We several months ago acquired a Compugrapics MCS10 dedicated typesetter
system and a Compugraphics 8400 phototypesetter hooked to it.  The system
also includes the preview option, which gives a variably good screen
preview of a typesetting job.

This system was purchased last semester, and when i arrived on the scene this
semester, i found that no one involved had a real idea of the machine from the
computer aspect.  

Now my reason for submitting this.  We currently run the system off of a
compugraphics supplied single floppy drive, which i find holds an amusing
92k formatted.  This is enough to allow 16 simultaneous fonts.  We now want
to go beyond this number, and this requires a hard drive.  After finding
CG's hard drive to be rather expensive, and with my impressions of CG's
hardware, I would like to find a third-party hard drive that we can buy that
is @i(of course) compatible with the system as it now stands.  I am also 
interested in a second floppy drive for the system. Does anyone know if it
is possible to obtain a floppy for a CG system that has a greater capacity, or
even a second 92 k drive?

Another quest of mine is to interface the system with the rest of the digital
world.  Compugraphics sells an (to use their own words) "interface" that
would supposedly allow us to do terminal emulation and file transfer with our
dec 20's.  They also tell us that this costs $5000.  I think that figure might
be just a little inflated.

The alternative that seems most useful to me is to accomplish a connection 
between the system and an IBM PC.  The manual (hideously incomplete) for the
phototypesetter itself gives the protocol for incoming data to the typesetter,
but nothing is mentioned anywhere that i can find about the protocol of the
front end system.  It seems likely to me that it would be possible to have the
PC emulate a terminal attached to the system and thus accomplish data transfer
as normal input at a higher speed.  Can someone tell me if this is possible, 
and if it is, any technical details (such as the protocol and connections)
that you have discovered?  Compugraphics is, of course, of little help in my
inquiry.


I would appreciate any help or advice anyone could offer me on this subject.
Replies can be sent to me, AD0R@cmu-cc-tb, to my friend, BADER@cmu-psy-a, or
posted, but since i do not have arpa access myself, the former is preferable.

thank you.