OKI ES4131/ES4161/ES4191

Compatible OKI ES4131/ES4161/ES4191 Black Toner. This toner lasts for 10,000 pages — the same as the original. The compatible toner does not affect the printer warranty and the print quality is the same. The toner is ready to use; it does not require any handling (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.