The Okidata B731dnw laser printer uses the OEM Okidata laser toner cartridges and supplies. Our compatible toners for Okidata B731dnw are manufactured to meet the same original specifications and performance standards as the Okidata OEM laser toner cartridges. We offer a 100% Quality Satisfaction Guarantee on alternative laser toner cartridges and supplies for use in the Okidata B731dnw.