I found this while researching my bonjour problem. It worked for me.
Re: Can't print after 10.5.2 install Posted: Feb 20, 2008 7:23 PM in response to: MTR300 Solved
The CUPS author created a small utility that should help with the 10.5.2 upgrade and the Airport problems:
http://ftp.easysw.com/pub/cups/contrib/FixAirportPrinter.dmg
Steps:
- Add Airport printer
- Run FixAirportPrinter application
- Double-click on printer in list (or click on printer and click on "Fix Printer" button)