When printer is PostScript, and a .dvi file is printed,
the PostScript file produced by dvips has paper size set
to a4 by default, and incorrectly printed on letter size
paper. The user can fix the problem by doing
	export DVIPS_OPTIONS='-t letter'
at command line or putting this line in .bashrc.
The variable DVIPS_OPTIONS seems to be undocumented and
it is used in /usr/lib/rhs/rhs-printfilters/dvi-to-ps.fpi.
It is nowhere set. I think it was meant to be set based
on /var/spool/lpd/lp/postscript.cfg. This is a modified
dvi-to-ps.fpi which does the trick:


#!/bin/sh
#
# convert TeX dvi to Postscript
#
#

#
# read in PostScript configuration settings
#
source ${SPOOLDIR}/postscript.cfg

DVIPS_OPTIONS="-t $PAPERSIZE"

#
# will want to source print options for dvips
#
TMP_FILE=`mktemp /tmp/rhsprintfilter.XXXXXX` || exit 1
cat > $TMP_FILE
dvips -f $DVIPS_OPTIONS < $TMP_FILE

if [ -f "$TMP_FILE" ]; then
      rm -f $TMP_FILE
fi

exit 0