Adding Kyocera printers connected via network (IPP) will cause a Printer paused status as soon as the first job is queued in Snow Leopard.
Reinstalling the drivers for 10.5, changing the owner:group of /usr/libexec/cups/filter/kyofilter to root:wheel, and choosing LPD in the Printer setup dialog will fix this problem.
[robg adds: I missed this hint in the queue when scanning for potentially time-sensitive Snow Leopard hints; if it's no longer applicable (i.e. there are new drivers out that fix the problem), please let me know.]
Mac OS X Hints
http://hints.macworld.com/article.php?story=20090907163254296