Re: PostScript code needed to recover LaserWriter VM

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#890

From: C.E. Thompson on jenny
Date: Fri, 11 Aug 1989 15:12

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In article <6318@oregon.uoregon.edu>, joe@oregon.uoregon.edu (Joe St
Sauver) asks (effectively) for PostScript code to restore a LaserWriter
to its newly switched-on state. For all varieties of LaserWriter I have
met, the following will work:

   systemdict /quit get exec

i.e. obey the "quit" operator from systemdict rather than the more
usual one in userdict.

Note that this will send the printer through its normal startup sequence
(printing the test page, etc., depending on the eerom contents). The
DTR signal on the RS-232 port will drop temporarily.

You could make yourself quite unpopular doing this to LaserWriters with
carefully setup contents.

The Adobe PPD files have a "*Reset" entry for defining how to do this
sort of thing. You are meant to prefix the code with the printer
password, but at least up to PostScript 38.0 LaserWriters, it isn't
actually necessary to do an "exitserver" before using the technique
described above.

Chris Thompson
Cambridge University Computing Service
JANET:    cet1@uk.ac.cam.phx
Internet: cet1%phx.cam.ac.uk@nsfnet-relay.ac.uk

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From: cet1@cl.cam.ac.uk (C.E. Thompson on jenny)
Newsgroups: comp.lang.postscript
Subject: Re: PostScript code needed to recover LaserWriter VM
Message-ID: <868@scaup.cl.cam.ac.uk>
Date: 11 Aug 89 15:12:17 GMT
Sender: news@cl.cam.ac.uk
Reply-To: cet1@cl.cam.ac.uk (C.E. Thompson)
Organization: U of Cambridge Comp Lab, UK
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