OKI Original Consumables protect your device and help it run smoothly for a long time, unlike alternatives that may damage your printer, fax machine or MFP. OKI uses ISO-approved testing methods to accurately determine the declared yield for our original toner cartridges. That means you always get the number of pages promised. To guarantee quality for every print. Third party products aren’t designed specifically for OKI’s devices, so they can’t guarantee the stunning print quality, low cost and reliability you enjoy with OKI’s Original Consumables.