MICR toner cartridge is designed for use with Hewlett-Packard LaserJet 1012, 1018, 1020, 1022, 1022n, 1022nw, M1319f MFP, 3015, 3020, 3030, 3050, 3052 and 3055. Cartridge contains magnetic image character-recognition ink for security purposes in printing checks. Cartridge yields approximately 2,000 pages.