Compatible for Q2613A - Black MICR Toner Cartridge for LaserJet 1300, 1300n, 1300xi printers. MICR is an acronym for Magnetic Character Recognition. MICR Cartridges are used for printing checks. Banks read magnetic differently than standard, allowing them to process checks reliably. Magnetic Recognition Toner; Regular toner mixed with IRON OXIDE particles, recognized by scanning devices. Mainly used for Check printing and bar coding. Built with NEW drums and NEW components that match all ABA standards (American Bankers Association). This is not an original brand cartridge but a compatible or remanufactured cartridge.