This is not an OEM original brand. These are Premium Remanufactured Re-Used Cartridges. MICR toner cartridge is designed for use with Hewlett-Packard LaserJet 1200, 1200n, 1200se, 1220, 1220se, 3300mfp, 3310, 3320mfp, 3320n mfp, 3330mfp and 3380. Cartridge contains magnetic image character-recognition ink for security purposes in printing checks. Cartridge yields approximately 3,500 pages.