A useful database is maintained at http://www.linuxprinting.org

Based on the entry there, I would guess that something like the
following may work.

from pkgsrc, install print/enscript, print/ghostscript, and print/hpijs

cat >>/root/bin/lpd-filter.sh
#!/bin/sh
PATH=$PATH:/usr/pkg/bin
export PATH
/usr/pkg/bin/enscript --lineprinter --pass-through --output=- 2>/dev/null |\
        /usr/pkg/bin/gs -q -dSAFER -dBATCH -dQUIET -dNOPAUSE \
                -sDEVICE=ijs -sIjsServer=hpijs \
                -sDeviceManufacturer="HEWLETT-PACKARD" \
                -sDeviceModel="deskjet 3320" \
                -dDEVICEWIDTHPOINTS=612 -dDEVICEHEIGHTPOINTS=792 -r300 \
		-sIjsParams=Quality:Quality=1,Quality:ColorMode=0,Quality:MediaType=0,Quality:PenSet=0 \
                -dIjsUseOutputFD \
                -sOutputFile=- -  && \
        exit 0
exit 2
# Quality:Quality 0=normal, 1=draft, 2=best
# Quality:ColorMode 0=grey_k, 1=grey_cmy, 2=color
# Quality:MediaType 0=plain, 1=premium, 2=photo
# Quality:Penset 0=black_pen, 1=color_pen, 2=both_pens, 3=mdl_pen, 4=mdl_both
# Quality:FullBleed 0=no, 1=yes
# Quality:MediaPosition 1=upper_tray, 4=lower_tray, 7=autoselect
^D

cat >>/etc/printcap
lp|Ghostscript to HP DeskJet 3745:\
	:lp=/dev/lpa0:sd=/var/spool/output/lp:\
	:lf=/var/log/lpd-errs:\
	:mx#0:sh:\
	:if=/root/bin/lpd-filter.sh:
^D

# if needed, create spool dir and start lpd

mkdir /var/spool/output/lp

echo lpd=YES >>/etc/rc.conf

/etc/rc.d/lpd start


Anything interesting in the log files?

Cheers,

Ben

On Mon, Sep 05, 2005 at 04:22:50PM -0700, someone_u_know wrote:
> 
> Long time since my last reply. The HP Deskjet 3745 I
> have does not respond to anything from lpd; so i guess
> it's safe to say that it either isn't a "good" printer
> :> or it isn't supported yet.
> 
> The Hp Deskjet 3745 was a waste of good money. Going
> to see if I can get something about the same price but
> better. I don't recommend this printer to anyone.