Thanks. My system Tru64 V5.1b does have the filters for the printer, just that I'm not sure about it's configuration.
I'm testing with HP LaserJet 4350. When I try to print the file, i get the ascii equivalent.
Here's my printcap file.
lp|lp0|0|laser:\
:af=/usr/adm/lpacct:\
:if=/usr/lbin/ppdof +OPageSize=Letter +Chplj4350.rpd:\
:lf=/usr/adm/lp0err:\
:lp=@idt-103/HP-HRES:\
:mx#0:\

f=/usr/lbin/ppdof +OPageSize=Letter +Chplj4350.rpd:\
:pl#66:\
:pw#0:\
:rw:\
:sd=/usr/spool/lpd0:\

f=/usr/lbin/xf:
Should I be setting any particular switches?
N.B. I can print ok when I use display. What I'm looking for is to be able to print by the command line.
Robert