My Macbook Pro won't print color from my HP Photosmart 5510.

I have installed the necessary drivers for Macbook Pro from HP's website for my printer, which is an all-in-one scanner/copier/printer HP Photosmart 5510, I've changed all the preferences I've been recommended to, but all that prints out when I try to print pictures from any application (i.e. Word, Pages, Preview, etc.) it comes out grainy, distorted, and black/white instead of in color. My ink cartridges are only a week old, and the test prints I've done directly from the printer itself come out in color. When I hooked up my old Toshiba with Windows 7, it printed out color pictures just fine. I'm not sure what else to do. Normally I don't need to print pictures, but it'd be nice if when I DO need to that I don't have to break out my ancient Toshiba, plug and unplug USB cords and chargers, just to print one or two pictures. Any ideas? Thanks.