2-pack (B+c) Hp 51645a 45 C6578a 78 Remanufactured Ink Cartridges for Hp Black Tri-color 51645a C6578dn Remanufactured under strict standards and will meet or exceed expensive OEM formulations. 90 day Factory Warranty against defect Individually Factory sealed in retail packaging. Sold by Take4Less Fits Models : DeskJet 710C 712C 720c 722C 6122 6127 820cse 820csi 830C 832C 850 855 870cse 870cxi 880C 882C 890cse 890cxi 895cse 895cxi 930C 932C 935C 995C 950C 952C 960cse 960cxi 970cse 970cxi 990cse 990cxi 990cm 995c 1000cse 1000cxi 1120c 1120cse 1120cx