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From: alen@cogen.UUCP (Alen Shapiro)
Newsgroups: comp.sys.mac
Subject: Re: printing PostScript generated by Mac
Message-ID: <384@cogen.UUCP>
Date: Wed, 28-Oct-87 12:51:14 EST
Article-I.D.: cogen.384
Posted: Wed Oct 28 12:51:14 1987
Date-Received: Sat, 31-Oct-87 07:56:41 EST
References: <3056@husc6.UUCP>
Reply-To: alen@cogen.UUCP (Alen Shapiro)
Organization: Cogensys, LaJolla, Calf.
Lines: 39

In article <3056@husc6.UUCP> seung@husc8.UUCP (Seung) writes:
> I am working on an Apollo DN3000 running DOMAIN/IX.  Connected to
> it is an Apple LaserWriter.  Since I also have a Mac at home, I
> would like to be able to upload PostScript files to the Apollo
> and print them out on the LaserWriter.  What I have been doing is
> using the command-K trick to generate a file which includes
> LaserPrep as a header, followed by my print file.  I then transfer
> this file to the Apollo, and feed it to the LaserWriter.  The
> yellow light flashes, indicating that some processing is going on,
> but no page is ever printed.  Does anyone know what I might be
> doing wrong?  Please answer by mail and I will summarize to the net.
> Thanks in advance.
> 
> Sebastian Seung

I have the same problem with our LaserWriter connected to a SUN 3
server, using the lpr command. The lpr command on SUN/OS states that
if the special characters '%!' are found alone on the first line, the
contents of the file are sent unfiltered to the LaserWriter. Using this
command (lpr) I got the above described results.

A QUICK HACK

A quick and dirty solution is to use a terminal interface program
(like tip or cu) on the LaserWriter tty-line (this will enable
XON/XOFF flow control) then send the file to the same /dev/ttyx
either by using 'cat' from another terminal or by using the
raw file transfer facility of tip/cu itself (tip uses ~> <FILENAME>
I believe).

This works although it bypasses the spooler which should be temporarily
disabled while the cludge is attempted.

I intended reporting the problem to SUN as a bug in lpr, but if same
is happening on Apollo I am at a loss to know the cause (of course
they might be entirely different problems - knowing Apollo - they
probably are :-))

--alen the Lisa slayer (it's a long story)