Amazon.com: Kyocera 1T02MT0US0 Model TK-3112 Black Toner Cartridge (Pack of 2), Compatible with FS-4100DN Laser Printer, Includes Waste Toner Container : Office Products
Check Waste Toner Box" Error - Kyocera 2100 - How To Replace Waste Toner Box On Kyocera FS-2100DN - YouTube
Black Toner Cartridge for Kyocera TK-3112 FS-4100DN, Genuine Kyocera Brand - Newegg.com