Print Checks Like a Pro with RT Universal MICR ProductsRT Universal HP 87X CF287X MICR Toner Cartridge• Quantity: 1 Magnetic Toner Cartridge for Check Printing • Yield: 18k pages based on 5% coverage, prints 54k checks @ 3 per page. Please Note: actual yield may vary depending upon the amount of print on the page and other factors. • Compatible Printers: the RT universal CF287X MICR cartridge is designed for HP Laser Printers M501dn M501n M506dh M506dn M506n M506x M527c M527dn M527f M527z.The Renewable Toner Advantage • Superior Support. We know printing is important - that's why we have a U.S. based customer support team. •Lifetime Warranty. Contact us with any technical or product issues and we will be happy to assist you.Printing Tips • A common error is the “non-genuine” message. If this occurs with the RT universal HP 87X CF287X MICR cartridge, press OK or Continue repeatedly 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. • Contact us in the case of a malfunctioning cartridge, so we can immediately send an RT compatible HP 87X toner cartridge.Happy Printing!