This is an MTI © 106R01047 MICR Cartridge used for printing professional checks. This cartridge is designed for Xerox WorkCentre M20, M20I, C20 printers. MTI © MICR Cartridges deliver high-quality MICR output and excellent toner yield, at an exceptionally low cost per page. Every MTI toner cartridge is manufactured in an ISO-certified facility and factory tested before shipping. We offer an exclusive 30-day customer satisfaction guarantee and 2-year warranty. Our dedicated customer care staff is available 9 a.m. to 7 p.m, Monday through Saturday, to answer any questions and provide technical support.