What is the model of your printer?
It's the #1 question!
Are you sure it's working fine in Linux? Check please: http://www.openprinting.org/printers
If your printer has an Ethernet interface (and as I understand, it does) it's much better.
Then you may use either CUPS web interface (as written above) or your OS printer management GUI. In Ubuntu it can be launched with the 'system-config-printer' command (don't remember where it's hidden in the GUI menu).