Amazon.com: Kyocera 1T02GR0US0 Model TK-717 Black Toner Kit For use with Kyocera KM-3050, KM-4050, KM-5050, TASKalfa 420i and 520i A3 Monochrome Multifunctional Printers; Up to 34000 Pages Yield at 5% Coverage :
Kyocera/Mita TASKalfa 3050 ci (TK-8305 K / 1T02LK0NL0) - original - Toner black - 25.000 Pages : Amazon.de: Computer & Accessories
Kyocera TK8309 TASKALFA 3050CI 3550CI Toner Cartridge (Genuine) - Toner Bee Australia's Leading Cartridge Site