The computer is running xp home sp3, the printer was uninstalled and reinstalled. The computer sees and recognizes the printer and will send jobs to it. The printer goes through the motions and a pages is sent through but there is nothing on the page. The color cartridge is full, the black cartridge is half full. I aligned the print heads but only got a blank page. I cleaned the heads and got horizontal lines but still nothing will print. I checked the cartridges and they look ok, no tears or other damage to the connection points. There are no bits of paper between the print heads and the paper going through. Aside from unscrewing the whole thing is there something I missed as far as getting it to print?