Thanks Greg and Florian:

 I got it working great. I just did pkg_delete -f for the gnu
ghostscript and then installed the eps-ghostcript pkgsrc. I then did
as Greg suggested and set USE_CUPS=YES in my mk.conf and recompiled
the kernel.
 The printer worked great, both in photo mode (721 dpi) and in regular
mode (360 dpi). My friend will probably enjoy the NetBSD desktop :).
NetBSD runs fine :).

On 10 Jan 2005 19:51:12 -0500, Greg Troxel <gdt@ir.bbn.com> wrote:
> any fuss, then yes, you need to use esp ghostscript, which is just
> regular ghostscript with a few changes, mostly I think a raster
> interface so that it can be easily connected to gimp-print.
> 
> If you set USE_CUPS=YES in /etc/mk.conf, then mk/ghostscript.mk will
> automatically choose ESP ghostscript.  If you don't, then you'll get
> another kind if you build something else first, and -- I think -- ESP
> if you build cups first.  But I can't find the pkgsrc code that makes
> ESP be used with cups right now.
> 
> So, if you use GNU ghostscript, you'll depart from the way the CUPS
> people think things should be, and I suspect that printing PS files on
> the Stylus Photo 820 won't work.
> 
> --
>         Greg Troxel <gdt@ir.bbn.com>
>