5.Our 56 cartridges deliver quality printing, give you vivid and natural prints. 4.Estimated page yield: 520 Pages Per 56 Black Ink Cartridge at 5% Coverage. 3.Includes: 2 Black (C6656AN) Remanufactured for 56 Ink Cartridge. 2.56 Ink Cartridge Cartridges Compatible With Printer Model: HP Digital Copier 410 Printer Photosmart 7150, 7260, 7350, 7450, 7550, 7660, 7760, 7755, 7960 Printer Deskjet 450, 5145, 5150, 5550, 5650, 5652, 5655, 5850, 9650, 9670, 9680 Printer Officejet 4105, 4211, 4251, 4252, 4255, 4256, 4259, 5505, 5508, 5510, 6105, 6110 Printer PSC 1110, 1118, 1200, 1218, 1310, 1340, 1350, 1355, 2105, 2108, 2110, 2150, 2170, 2171, 2175, 2179, 2210, 2212, 2400, 2405, 2410, 2420, 2450, 2510, 2550 Printer. 1.GPC Image 2 Black 56 Ink Remanufactured Ink Cartridge Replacement for HP 56 Ink Cartridge.