To use an HP LaserJet 5si on Mac OS X over the network, you must first use the keypad on the printer to assign it an IP. I chose 192.168.1.2 so it could be next in line after the router. Then in OS X, go to
System Preferences-> Print & Fax-> Add new
Click the IP icon at the top and use these settings:
Naturally, you can name it whatever you want. Mine’s in the basement, so that’s it’s name.
All of this couldn’t be more straightforward until you go to print a test page using the default driver OS X selects for you (the HP 5si driver – seems right, yes?). When you print, you’ll get Post Script garbage and tons of blank pages until you quit the job.
It’s smooth sailing from here and now this beast of a printer can serve me well into the future…living under the stairs in the basement.