Look no further, our Lexmark™ 24015SA MIRC cartridge will satisfy you with its quality and economical price. MICR or Magnetic Ink Character Recognition is a standard electronic process that reads sensitive documents like checks using high speed magnetic equipment and MICR toner. MICR toner is read by these sensitive machines especially when it is arranged in a specific syntax or pattern like the information found on a check. The bank routing number, account number, and check number are written using MICR printing process to ensure individual security as well as bank security.