Thanks to all the people who responsed.
A while ago we had a problem with printing using the HP Laserjet III through
the parallel port (/dev/pp0) of the Sun 3/80.  As some of the folks
pointed out, there is a bug (ID 1026987) in the parallel port driver pp.o.
Last week, we finally got the patch, rebuilded our kernel, and the printer
is working fine.
Thanks to Erik Deumens (deumens@qtp.ufl.edu) and Bill McSephney
(bill@jtsv16.jts.com) who pointed out what the printcap and the output
filter should look like:
# Printcap entry
#
l-kap403|hplj|hplaserjet|KAP 403A HP Laser Jet III:\
        :lp=/dev/pp0:sd=/usr/spool/print/l-kap403:\
        :lg=geomap,staffops,sups,ops,operator,unix-sys:\
        :fs#06020:fc#0300:xc#040:pw#80:mx#0:\
        :sh:ff:tr=\EE\r:\
        :ms=-parity,-cstopb,-clocal,-cread,crtscts,ixon,-opost:\
        :lf=/usr/adm/lpd-errs:\
        :of=/usr/lib/hplaserjet:
#!/bin/csh -f
# 
# @(#)hplaserjet 1.1 88/10/27 Sun Microsystems Inc 1988
#
# This file should be located in /usr/lib
#
# This is the output filter for use wth HP LaserJet I and II.
# It is called via the of entry in the generic_hp printcap entry.
# All that it does is send the escape sequence to the printer, so that:
#       CR is mapper to CR
#       LF is mapped to CR LF
#       FF is mapped to CR FF
# and the first two lines reset the printer before each printing
#
/usr/bin/echo -n '^[E'
sleep 5
/usr/bin/echo -n '^[&k2G'
/usr/bin/cat
if ($status == 0) then
  exit 0
else
  exit 1
endif
#Note: ^[ is the escape sequence
Eric
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
 Eric Fung, System Manager                      Internet: ericf@mapper.usc.edu
 Geographical Information System                          ericf%chaph@usc.edu
 Department of Geography                      Off. Voice: (213) 743-2366
 Univeristy of Southern California                   FAX: (213) 741-0642
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This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:05:57 CDT