[comp.lang.postscript] Clearing memory with software

cole@unix.SRI.COM (Susan Cole) (10/19/90)

We have a Laserwriter Plus attached to our Sun which is
also used by some Macintoshes (through a queue on the Sun).

The printer seems to have very little memory available. vmstatus 
immediately after power-up shows:

239316 (total available?)
65920  (used?)
2      (levels of ??)

Then we load the dictionary for the Macintoshes, which is another 33K.
Our TeX users use dvips.  I have specified 100K of memory available,
the least recommended for dvips to run efficiently.

So the printer runs okay for a while, then eventually a TeX user comes
in complaining that his job didn't print,  and the log file shows VM
errors.   Now a vmstatus will show 180 or 190K used.   So I have to
power-cycle the printer and reload the Mac stuff, and off we go until
next time.

The question is -- is there any way around having to physically
power-cycle to clear the memory?  Is there a PostScript command I can
send to the printer via cron that will wipe out the accumulated stuff?
It would be preferable that it leave the Mac dictionary intact, but
even if it can't, it wouldn't be hard to reload that after clearing
memory.