You might try to find a non-printing machine on eBay. These things are sold as a loss leader to get you to buy ink. Rarely are they worth trying to fix. A new one on Amazon is about $75.00: http://www.amazon.com/HP-Photosmart-Prin...
This price includes $25 worth of ink. Some things are just made to be disposable and ink jet printers are at the top of the list. Laser printers are becoming the same way, a full set of toners cost about what the whole thing does. Sorry