Designed for LaserJet Enterprise printer and MFP users who need to maintain optimum quality and reliability. HP LaserJet maintenance kits ensure your HP printer and MFP remains in working condition and continues providing the highest print quality possible.Compatible Printers: HP LaserJet Enterprise M 806 x Plus, HP LaserJet Enterprise M 806 dn, HP LaserJet Enterprise flow MFP M 830 z, HP LaserJet Enterprise M 800 Series, HP LaserJet Managed flow MFP M 830 zm, Troy 806 DN Micr Printer