Kyocera, KYOTK3122, 4200/3550 Toner Cartridge, 1 Each - Walmart.com
KYOCERA FS-4200 Series Toner TK-3122
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