OK, I finally got my HP PSC 1350 All-in-one to print using cups.  Here's 
what I did:

1.  Using pkgsrc, install cups, cupsomatic and cupsomatic-ppds.
2.  Using pkgsrc, install ghostscript-esp.
3.  Using pkgsrc, install hpijs.
4.  Copy the sample cupsd to /etc/rc.d, but modify line 8 from:

     # REQUIRE: DAEMON slpd

     to:

     # REQUIRE: DAEMON lpd

5.  Modify /etc/rc.conf to start lpd and cupsd.
6.  Download foomatic-rip from www.linuxprinting.org and modify it for 
/usr/pkg paths.
7.  Install it in /usr/pkg/bin, and link it to 
/usr/pkg/libexec/cups/filter/foomatic-rip.
8.  Download the HP PSC 1350 .PPD file from www.linuxprinting.org (I used 
the one for the PSC 1310, as none specifically for the PSC 1350 was 
there...yet).
9.  Put the .PPD file in /usr/pkg/share/cups/model/HP
10.  Start cupsd.
11.  Open firefox and go to localhost:631 (log in as root) and set up your 
printer.
12.  To print, do "/usr/pkg/bin/lp -d <your printer name, set up in cups>"

>From: "Mark Tamola" <marktam264@hotmail.com>
>To: gathorpe79@yahoo.com, netbsd-help@netbsd.org
>Subject: Re: No response when do lptest > /dev/ulpt0...anything else to 
>try?
>Date: Tue, 08 Mar 2005 15:53:32 -0600
>
>
>
>>From: Gary Thorpe <gathorpe79@yahoo.com>
>>To: Mark Tamola <marktam264@hotmail.com>, netbsd-help@netbsd.org
>>Subject: Re: No response when do lptest > /dev/ulpt0...anything else to 
>>try?
>>Date: Tue, 8 Mar 2005 14:54:43 -0500 (EST)
>>
>>
>>--- Mark Tamola <marktam264@hotmail.com> wrote:
>> > Thank you all for your kind suggestions.  However, I'm still unable
>> > to
>> > print.
>> >
>> > I installed cups, per someone else's suggestions.  Using pksrc, I
>> > installed
>> > the cups, cupsomatic, and cupsomatic-ppds packages (in that order).
>> > I then
>> > copied the example cupsd rc.d script to /etc/rc.d, and did a
>> > /etc/rc.d/cupsd
>> > start.  It complained about $cupsd not set correctly, so I modified
>> > /etc/rc.conf and added "cupsd=YES".  I then did a /etc/rc.d/restart,
>> > and it
>> > started cupsd with no error messages/warnings.  I then opened up
>> > firefox and
>> > got onto localhost:631 to connect to the cups web admin server.  I
>> > began to
>> > configure my printer, but found that the driver for my printer, an HP
>> > PSC
>> > 1350 All-in-one, was not in the list.  So, I went onto
>> > www.linuxprinting.org
>> > and found the .PPD file for the HP PSC 1310, which was the closest
>> > one I
>> > could find.  I stuck the .PPD file in /usr/pkg/share/cups/model/HP.
>> > I
>> > restarted cupsd and re-logged onto the cupsd web admin server.  I was
>> > now
>> > able to find the new driver for my printer, and so I selected it and
>> > completed setting up the printer.
>> >
>> > Now, the printer was fully installed and configured with cups (I
>> > think).  So
>> > I proceeded to try a test page and...nothing.  No lights blinking, no
>> > paper
>> > cranking, no response.
>> >
>> > I'm pretty sure the problems I'm experiencing are at a NetBSD driver
>> > level,
>> > as I can't even do a "cat textfile.txt > /dev/ulpt0".  It seems to me
>> > that
>> > the problem isn't even at the cups level, so I don't think it should
>> > even
>> > matter whether I use apsfilter, magicfilter, cups, LPRng, etc. so I
>> > don't
>> > think it would benefit me to go down the list trying each one.  I
>> > SHOULD be
>> > able to do a "lptest > /dev/ulpt0" or something really low level like
>> > that,
>> > so what's the deal?
>>
>>Just because 'lptest > /dev/ulpt0' doesn't work does not really
>>indicate anything. It doesn't work on many inkjets as was pointed out
>>by someone else. It may in fact be too low-level for the printer to
>>understand.
>>
>>Ghostscript supports the printer apparantly (the driver understands the
>>LIDIL language used by your printer at least), so I would agree that
>>the most likely problem is with the ulpt driver. The manual page for
>>ulpt suggests trying ulpn instead (no reset on open). You could also
>>try usbdevs(8) to see if netBSD is even detecting the printer. And of
>>course, check the cables etc. Does the printer show up in your dmesg?
>>Any messages when you plug it in/out?
>>
>>
>>
>>______________________________________________________________________
>>Post your free ad now! http://personals.yahoo.ca
>
>Sorry, I didn't include some of the original text from my first posting.  
>Yes, I read the documentation and tried doing a cat textfile to BOTH 
>/dev/ulpt0 and /dev/ulpn0, and both times got no response at all from the 
>printer.  Yes, NetBSD is detecting the printer because I can see it in 
>dmesg, and I also see the green kernel messages telling me that it has been 
>unplugged/plugged when I physically unplug/plug it.
>
>BTW, not that it matters, but yes the printer works under Windows 2000/XP, 
>as well as Linux (cups).
>
>Anyone else have any suggestions?
>
>Thanks,
>
>-Mark
>
>