ps-to-printer.fpi (version 1.63-1) does not seem to know anything about duplex printing. Our PostScript printer however does and so does mpage (which is used by the filter to get the N-UP feature). Without any better knowledge, I made following hack to the filter: RCS file: RCS/ps-to-printer.fpi,v retrieving revision 1.0 diff -r1.0 ps-to-printer.fpi 35a36,39 > if [ "$DUPLEX" = "2" ]; then > duplex="-t" > fi > 45c49 < mpage_cmd="mpage -b$mpage_paper $border -$NUP -m${RTLFTMAR}lr -m${TOPBOTMAR}tb" --- > mpage_cmd="mpage -b$mpage_paper $border -$NUP $duplex -m${RTLFTMAR}lr -m${TOPBOTMAR}tb" In addition to the above change I added a line "DUPLEX=2" into my printer spool directory "postscript.cfg", and everything seems to work just great (ASCII and PS printing). The problem is that "printtool" does not know anything about DUPLEX setting either. Anyway, this solution works for me. Maybe there are better ways to do this?
printtool REALLY needs an overhaul, but this will have to wait. We are looking for a re-write in 7.1 (I know we said we'd do one by 7.0) defering this bug.