Here's the information for setting the TCP/IP parameters from the printer configuration panel:
http://h10025.www1.hp.com/ewfrf/wc/f...cname=bpj02326
Leave DHCP & BOOTP off, since you may want to run your printer also when the router DHCP server is down and you're using a direct "twisted" cable connection from one computer only, for instance. Also you'd have to have assigned one never-to-change IP address for the printer from the DHCP server's setup. Assing an address manually that is beyond the scope of the addresses provided by the router DHCP address pool for internet access. (You may need to go into your router's web-based setup to find out/change.)
The "Unix LPR" print service must be installed separately for each XP client for the printing to work. The instructions are here:
http://please.rutgers.edu/show/howto/AddingLPRport/
If you're not planning to use any MS printer or file shares now, it's a good idea to remove the MS service from the list of network services by the Control Panel.