This is the second time in about a month that this has happened, last
time some combination of removing files in the spool directory and a
reboot made lpd happy again.  The server is NetBSD-1.6_STABLE, all
print jobs are from a FreeBSD-4.5-RELEASE client.

On the FreeBSD client:
% lpq -Pps
Warning: ps is down: ps is ready and printing
Warning: no daemon present
Rank   Owner      Job  Files                                 Total Size
1st    neil       1    (standard input)                      12472 bytes

And on the NetBSD server:
% lpq -Pps
Warning: ps is down: ps is ready and printing
Warning: no daemon present
Rank   Owner      Job  Files                                 Total Size
1st    neil       1    (standard input)                      12472 bytes
% ps -auwwx | grep lpd
root  1074  0.0  0.5  124   668 ?? Ss    7Jan03  0:00.01 /usr/sbin/lpd 

There are several other print queues for the printer (raw, pcl, lp) all
for which lpq reports "no entries".  Any clues on how to make sense of
the warnings?

-Neil