Easy Check Printing with RT MICR Toner RT Compatible Lexmark 51B1H00 MICR Toner Cartridge• Quantity: 2 magnetic toner cartridges for check printing• Yield: 8.5k pages based on 5% coverage, prints 25.5k checks @ 3 per page.• Compatible Printers: the RT compatible Lexmark 51B1H00 MICR Cartridge is designed for Lexmark MS and MX Series MS417dn MS517dn MS617dn MX417de MX517de MX617de printers.The Renewable Toner Advantage • Better Quality And Support. The RT compatible Lexmark 51B1H00 toner cartridge is ISO 9001 and 14001 certified and tested to ensure superior performance. We know printing is important - that’s why we have a U.S. based customer support team. Contact us with any technical or product issues and we will be happy to assist you. • Earth Friendly. RT is your alternative solution that is cost effective and promotes a cleaner, greener future.Printing Tips • A common error is the “non-genuine” message. If this occurs with the RT compatible Lexmark 51B1H00 MICR cartridge, press OK or Continue continuously to dismiss the message. The printer will resume your print job.• If you order more than one cartridge, please test them all. Despite the extreme care we take in packaging, sometimes items are damaged during shipping and this can affect print quality. In this case, we immediately send an RT compatible Lexmark 51B1H00 MICR toner cartridge.Happy Printing!