HP 56 Black Ink Cartridge C6656AAPREMIUM QULAITY OF HP GENUINE BLACK TONER CARTRIDGES YIELDING 450 PAGES. COMPATIBLE PRINTERS (IF ANY): HP PHOTOSMART 2410,HP PHOTOSMART 2510,HP PHOTOSMART 7150,HP PHOTOSMART 7260,HP PHOTOSMART 7450,HP PHOTOSMART 7550,HP PHOTOSMART 7660,HP PHOTOSMART 7760,HP PHOTOSMART 7960,HP PSC 1210,HP PSC 1315,HP PSC 1318,HP PSC 1350,HP PSC 2110,HP PSC 2210,HP PSC 2310,HP PSC 2410,HP PSC 2510,HP DESKJET 450,HP DESKJET 450CBI,HP DESKJET 450CI,HP DESKJET 450WBT,HP