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From: izumi@VIOLET.BERKELEY.EDU
Newsgroups: comp.laser-printers
Subject: Is there any way to clear VM in LaserWriter?
Message-ID: <4985@jade.BERKELEY.EDU>
Date: Fri, 4-Sep-87 02:22:07 EDT
Article-I.D.: jade.4985
Posted: Fri Sep  4 02:22:07 1987
Date-Received: Sat, 12-Sep-87 21:48:08 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: izumi@violet.berkeley.edu ()
Organization: University of California, Berkeley
Lines: 32
Keywords: Apple LaserWriter, virtual memory, reset
Approved: laser-lovers@brillig.umd.edu

Hi! LaserWriter experts,

I am having a little problem with LaserWriter which is used as
a network printer.

We have two programs which send output to LaserWriter via PC Network.
(Specifically, Microsof Word, and DviLaser from Textset (now a different 
name? ))
Both store permanent changes into Virtual Memory which stay until
power-down or reset by;

 "systemdict begin quit"

The VM of the original LaserWriter (v2.0, PS version 38.0) is
too small for keeping the two simultaneously in memory without
causing 'VMerror'.

Because, during the reset cycle, LaserWriter loses characters
coming in from the standard input,  the print job queued immediately
after reset gets flushed, causing a lot of confusion to network
users.

So, I am wondering if there is any way to flush VM so that
LaserWriter can have the same state as that immediately after power-up, and
to do this without the above procedure (i.e., without losing control
of the RS232 serial port).

Thank you in advance

Izumi Ohzawa
izumi@violet.berkeley.edu
...ucbvax!violet!izumi