Amazon.com: AZ SUPPLIES Compatible Toner Cartridge Replacement for Kyocera Mita TK-717 KM-3050 KM-4050 KM-5050 NEC IT5050 TASKalfa 420i TASKalfa 520i (Black - 1 Pack) : Office Products
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 Black TK421 Toner Cartridge for KM2550 (370AR011)