If you need to print clear characters and lower your printer running costs, use the genuine black Oki 9002311 ribbon cartridge in your dot-matrix printer. This dependable Oki 9002311 black ribbon is designed to be long-lasting, producing up to 5 million characters before it needs to be replaced. Aside from offering excellent value for your money, this original Oki 9002311 black ribbon cassette also offers extreme reliability and great performance in the most demanding environments. This genuine 09002311 nylon-made product is very sturdy and does not wear out fast, allowing you to benefit from low running costs and seamless operation.