Here's a quick way to setup a CUPS print server and a Windows client:
On the server side
First you need to install CUPS 1.3 or higher on your print server and setup the printer (the web interface makes this task dead easy).
Zeroconf isn't enabled by default so you have to browse the CUPS admin page (http://localhost:631/admin if you're running it on localhost) and enable the "Share published printers connected to this system" option. "Change Settings" will restart CUPS and your printer should be instantly visible to zeroconf-aware applications in the local network.
If you can't or don't want to use the web interface (which is the
easiest way though), you can edit
/etc/cups/cupsd.conf and replace the
and add the line
Now save the changes and restart CUPS and you're done.
On the client side
Since most Linux distributions and MacOS support zeroconf out of the box, I'll just explain how to setup the Windows client.
Bonjour for Windows will enable Multicast DNS (mDNS) and DNS based Service Discovery (DNS-SD) on your Windows machine. Once it is installed, you can start the printer helper application provided by bonjour which will guide you through the process of installing the network printer. The only problem here was that although it correctly identified my printer, it only let me chose between a generic postscript and a PCL driver. Both were not working correctly so I had to manually change the driver for this printer to HP LaserJet 4 Plus (which is my printer) after the setup via the printer properties, where all other printer drivers where available again.
That's it! Now you should be able to print on every zeroconf aware operating system connected to your network. Oh, one final warning: With this setup, everybody in the LAN will be able to print without prior authentication. This should be what you want in most cases when running a home LAN or a small business LAN anyways, but it's certainly not so cool when strangers have access to your network.
The whole setup process took like 15 minutes today. I remember me a few years ago, not being very experienced with Samba and CUPS wasting a whole weekend to achieve the same result. Thanks apple for making life a bit easier again!