Print More, Save More with RT TonerRT Compatible 501H 50F1H00 Toner Cartridge• Quantity: 1 Black Toner Cartridge• Yield: 5k pages based on 5% coverage.• Compatible Printers: the RT Compatible 501H 50F1H00 Toner Cartridge is designed for Lexmark MS printers MS310d MS310dn MS312dn MS315dn MS410d MS410dn MS415dn MS510dn MS610de MS610dn MS610dte MS610dtn.The Renewable Toner Advantage• Higher print quality. The RT 501H Toner Cartridge is ISO 9001 and 14001 certified and tested to ensure superior performance. • Peace of Mind. You don’t need to worry about smudges, leaks, or defects. We offer a lifetime warranty and will replace any cartridge upon request. • Superior Support. We know printing is important - that's why we have a U.S. based customer support team. We are customer obsessed! It makes our day to make you smile. Contact us with any technical or product issues and we will be happy to assist you. • Earth Friendly. We promote a cleaner, greener future. Printing Tips • A common error is the “non-genuine” message. If this occurs with the RT Compatible Lexmark 501H 50F1H00 cartridge, press OK or Continue repeatedly to dismiss the message. The printer will resume your print job.• 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 501H toner cartridge replacement. If you order more than one cartridge, please test them all.Happy Printing!