Speedy Inks Remanufactured Ink Cartridge Replacement for HP 29 / 51629A (Black) For use in:693C DeskWriter 693C PSC 370 PSC 380 500 520 570 580 590 600 700 710 720 FAX 910 920600 DeskWriter 600 600C600C 610 630 635 660C 660Cse 660C 660660 670 670C 670TV 672C672C Page Yield: 650* Shelf Life: 12-18 Months Color: Pigment Black The use of aftermarket replacement cartridges and supplies does not void your printer's warranty