I have a macbook. I need help adding a printer

I begin by having the new printer hooked up by USB. When I have a document that I want to print opened up in Pages, I hit File; Print; hit the down arrow on the Printer bar and hit Add Printer. When the window pops up, the new Printer does come up under Printer Name and I highlight it. To hit add, I have to select something in Printer Options, the third bar. My only options are to hit either "Select a driver to use" or "Other". When I hit Select a driver to use, a list of Printers comes up but my printer is not listed there. It's an HP Deskjet 3512. What do I do?