The Original Black OKI 43459340 (43459436) Toner Cartridge benefits from OKI`s microfine Toner formulation designed to produce high quality sharp text with smooth images for the life of the Cartridge. The Genuine 43459436 Toner powder also has a low melting point for less impact to the environment by reducing carbon emissions. With OKI`s Original 43459340 Black Toner Cartridge you can produce high quality results for up to 1,500 pages (based on a 5% coverage) making the 43459436 ideal for use in a home or small office environment. This Original Black Toner Cartridge is designed to be used in a range of OKI Printers and comes with our 100% satisfaction guarantee.