microMICR TLN-621 MICR Toner Cartridge, Alternative for Lexmark, Black, Laser, 20000 Pages, 1 Each (MCMMICRTLN621) EachToner cartridge with new MICR toner is designed for use with Lexmark MS817 and MS818. Cartridge contains magnetic image character recognition ink for security purposes in printing checks. It uses special MICR toner developed and tested specifically for each model printer, retaining the original components and keeping the OEM factory seal intact. Cartridge yields approximately 20,000 pages. General Information Manufacturer: microMICR Corporation