Amazon.com: Kyocera TK-3122 (TK3122) Black Toner Cartridge 2-Pack for ECOSYS M3550idn, M3560idn, FS-4200DN : Office Products
Amazon.com: Kyocera 1T02L10US0 Model TK-3122 Black Toner Kit For use with Kyocera ECOSYS FS-4200DN, M3040idn, M3540idn and M3550idn Laser Printers; Up to 21000 Pages Yield at 5% Coverage : Office Products
Kyocera Mita FS-4200 toner cartridge, cheap toner refill