What type of printer is it?
Is CUPS installed, if so there is a simple way to set up printers. Go to http://localhost:631
and see if you can set it up. Though if you might need your root password so it might be a good idea to login to that page from a seperate browser profile. There will be a list of drivers to choose from, choose the one that corresponds best with your printer, if there are none, go on to http://www.cups.org
and check which printer driver would be best to use with your printer. Once it's set up print a test page, if it works then well done.