Specifically formulated for check printing, Innovera MICR toner cartridges provide businesses with the quality they require & the value they need. They meet all US & Canadian banking standards for signal strength. By using a special high-adhesion toner formula, designed specifically for your printer, these MICR toner cartridges can significantly reduce the possibility of costly fees stemming from rejected checks. Device Types: Laser Printer; Color(s): Black; Page-Yield: 21,000; Supply Type: MICR Toner.