Dataproducts DPC15DN Remanufactured Ink Cartridge Replacement for HP #15 (C6615DN) (Black) Assembled in USA Premium ink cartridges that meet or exceed OEM quality, page yield, and reliability 1-year warranty, 100% satisfaction guarantee Compatible Hardware: HP DeskJet 810C, 812C, 825C, 825cvr, 840C, 841C, 842C, 843C, 845C, 845cvr, 920C, 920Cxi, 920Cvr, 940C, 940Cvr...; Digital Copier 310; FAX 1230, 1230xi; OfficeJet 5110, 5110xi, 5100V, 5100A21, V40, V40xi; PSC 500, 500xi, 750... Page Yield: 600