Amazon.com: Compatible Toner Cartridges Replacement for Kyocera TK-3110 TK3110 for Use with Kyocera FS-4100DN 4100 Printer,Black,1 Pack : Office Products
Kyocera How to: Replace Toner - FS 2100dn, 4100dn, 4200dn & 4300dn - YouTube
Clover Brand Kyocera TK-3112 1T02MT0US0 Toner Cartridge Black ECOSYS FS- 4100DN TK3112 201008 - Sun Data Supply