HP CZ075FN 901 Black original LaserJet twin-pack ink cartridge is designed to deliver the best image quality and reliable printing. Toner cartridge is compatible with J4580/J4640 OfficeJet printers. For use with HP OfficeJet 4500, 4500 Wireless, J4540, J4550, J4580, J4680, J4680c. The unmatched reliability of original HP ink cartridges means consistent convenience and better value. High-quality cartridges print everything the way you wanted and are perfect for everyday printing applications.