Printer not printing?

I've got a HP Photosmart C4385 printer/scanner and Windows XP. For some reason it won't print. I've checked and everything is in the proper place (ink cartridges, paper, etc.) I've made sure the printer is not in offline mode. I updated the drivers and it doesn't seem to do anything. I've tried restarting my computer and my printer, nothing works. I've even uninstalled and re-installed the printer a couple of times. Whenever I try to print something it just goes to the queue and says "Printing" but nothing is coming out of the printer. Please help.