🚀 go-pugleaf

>Date: Sat, 11 Jul 87 17:16:22 cst
>From: seismo!mnetor!alberta!sask!skatter!kuo (Dr. Peter Kuo)
>
>A friend of mine send me a diskette with a Postscript output file generated
>by Ventura (v1.0). I used MS-Kermit to send the file from my XT-clone to our
>VAX (Ultrix) in text mode, hoping to print the file out on our Apple
>LaserWriter. However, on first try, the LaserWriter complained the file was a
>binary file! Upon close inspection, I found THREE control-D's in the file:
>the first byte (before the %!), the last byte and one about 50 lines or so
>from the top. I removed them, but then the LaserWriter spin its wheels for a
>while and gave no output!

The control-D in the Ventura output is recognized by the LaserWriter as
and end-of-file.  When it receives one, it assures that what follows is
logically separate from the previous job.  Any local changes to VM are
restored, etc.  It is not the LW which is complaining about your file,
but probably Ultrix, or perhaps some other software in between.

Unfortunately, you cannot merely omit the control-D characters.  Ventura
output consists of two separate jobs (at least your version of Ventura does).
The first section (between the first ^D and the second) actually patches
a PostScript bug in PS version 23.0.  This corresponds to LaserWriter
firmware version 1.0.  Check your ID page (when you start the LW).  The
firmware version appears at the lower left corner of the bar graph.

If you remove the ^D characters, the two jobs will be merged and the LW
will become quietly confused.

Solutions?  If you don't have firmware version 1.0, you can probably omit
the patch (including the ^D at the beginning and after the patch).  If the
previous LW job is finished, your Ventura output should print.

The best solution is to find a way to transmit the ^D characters.

Good Luck.

Gary J. Wisniewski
Apex Software Corporation
Pittsburgh, PA
uucp: 	{allegra,bellcore,cadre}!pitt!darth!apex!gary
phone:	412-681-4343
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