OKI ES4131/ES4161/ES4191

Compatible OKI ES4131/ES4161/ES4191 Black Toner. This toner lasts for 10,000 pages, the same as the original one. The compatible toner does not affect the printer warranty and the printing quality is the same. The toner is ready to use; it does not require any manipulation (it includes a chip).

Compatible OKI ES4131 Drum. The drum lasts 25,000 pages, approximately the same as that of an original drum. Please remember that the drum is not the same as the toner: the toner is placed above the drum. Neither does the compatible drum damage the printer nor invalidate the warranty.