Print More, Save More with RT TonerRT Compatible HP C9720A 641A Toner Cartridge• Quantity: 1 Black Toner Cartridge• Yield: 9k pages based on 5% coverage.• Compatible Printers: the RT compatible HP C9720A toner is designed for Laser Printers 4600 4600dn 4600dtn 4600hdn 4600n 4650 4650dn 4650dtn 4650hdn 4650n.The Renewable Toner Advantage• Higher print quality. The RT compatible HP 641A Black 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 HP C9720A 641A 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 HP 641A toner cartridge. If you order more than one cartridge, please test them all.Happy Printing!