Enjoy excellent printing with our Genuine Toner Cartridges for your Okidata B 720DN Monochrome Printer. All of the Genuine Okidata toner cartridges that we sell go through a vigorous inspection process before they are shipped to ensure outstanding printing results. Our OEM / Genuine Okidata 52123601 black laser toner cartridges combined with your Okidata b720dn printer will create stunning printouts with bold text at noteworthy speeds. Each Okidata toner cartridge has up to a 2 year shelf life for definitive convenience and performance. We guarantee exceptional print quality from these Genuine Okidata toner cartridges or we will refund your money within 90 days of purchase.