The Original Cyan OKI 43459331 (43459339) Toner Cartridge benefits from the Genuine Toner Powder having a low melting point for less impact to the environment by reducing carbon emissions. This 43459339 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 43459331 Cyan 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 43459339 ideal for use in a home or small office environment. This Original Cyan Toner Cartridge is designed to be used in a range of OKI Printers and comes with our 100% satisfaction guarantee.