Print More, Save More with RT TonerRT Compatible HP 131X CF210X Toner Cartridges• Quantity: 2 Black Toner Cartridges• Yield: 2.4k pages based on 5% coverage.• Compatible Printers: the RT compatible HP 131X toners are designed for HP Laser Printers M251n M276n M251nw M276nw.The Renewable Toner Advantage• Higher print quality. The RT compatible HP 131X Black toner cartridges are 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 131X CF210X MICR 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 131X toner cartridge. If you order more than one cartridge, please test them all.Happy Printing!