The Original Yellow OKI 43459329 (43459337) Toner Cartridge benefits from the Genuine Toner Powder having a low melting point for less impact to the environment by reducing carbon emissions. This 43459337 has been provided with OKI-s microfine Toner formulation designed to produce high quality sharp text with smooth images for the life of the Cartridge.The Original OKI 43459329 Yellow Toner Cartridge is the high capacity version and can produce high quality results for up to 2,500 pages (based on a 5% coverage) making the 43459337 ideal for use in a home or small office environment. This Original Yellow Toner Cartridge is designed to be used in a range of OKI Printers and comes with our 100% satisfaction guarantee.