Genuine Hewlett Packard HP26 Inkjet Print Cartridge Black (795 page/yield) HP DeskJet, DeskJet Plus, DeskJet 400, DeskJet 400L, DeskJet 420C, DeskJet 500, DeskJet 500C, DeskJet 510, DeskJet 520, DeskJet 540, DeskJet 550C, DeskJet 560C, DeskWriter, DeskWriter C, DeskWriter 400, DeskWriter 510, DeskWriter 520, DeskWriter 540, DeskWriter 550, DeskWriter 560, DesignJet, DesignJet 200, DesignJet 220, DesignJet 600, Fax 200, Fax 300, Fax 310, Fax 700, Fax 750, Fax 800, Fax 900, Fax 950, OfficeJet, OfficeJet LX, OfficeJet 300 Series, Panasonic PD-4200, PX-350, PX-360, UF-300, UF-311, UF-312, UF-315, UF-321, UF-322