Toner cartridge with new MICR toner is designed for use with HP LaserJet Enterprise Flow MFP M528c; LaserJet Enterprise MFP M528f, M528dn, M528z; LaserJet Enterprise M507x, M507dn & M507n. Standard-yield cartridge contains magnetic image character-recognition ink for security purposes in printing checks. It uses special MICR toner developed & tested specifically for each model printer, retaining the original components & keeping the OEM factory seal intact. Cartridge yields approximately 5,000 pages.