Daryo Remanufactured Ink Cartridge Replacement for HP56 HP57 (1 Black, 1 Color) C6656A C6657A, Compatible with HP Deskjet 450ci, Photosmart 7150, PSC 1110, Officejet 4105, Digital Copier ISO9001, IS014000 Certified. Faulty Rate is less than 2%. Compatible Printer: HP Deskjet 450ci, 450cbi, 450wbt, 5150, 5150w, 5550, 5551, 5650, 5650W, 5652, 5850, 5850w, 9650, 9670, 9680, HP Photosmart 7150, 7345, 7350, 7260, 7260v, 7260w, 7550, 7660, 7660v, 7660w, 7660xi, 7760v, 7760w, 7960, 7960w, HP PSC1110, 1205, 1210, 1210v, 1210xi, 1340, 1350v, 1350xi, 1355, 2000, 2105, 2410v, 2410xi, 2420, 2500, 2510, 2510xi, HP Officejet 4105, 4110, 4115, 4211, 4212, 4215, 4219, 4251, 4255, 4259, 5500, 5505, 5508, 5510, 5515, 6110, HP Digital Copier Printers Page Yield: 500 Pages(21ml)for Black and 430 Pages(18ml) for Tri-Color inkjet Cartridge at 5% coverage on A4 Paper Important NOTES:All the remanufactured inkjet cartridges read "Ink empty/ Ink less" but infact full of ink, Please use our wet wips to clean the Contacts and Nozzles, then click "OK" or Press " STOP/RESET" for 5seconds, It will work. Two-years warranty with 100% replacement guarantee