Kyocera FS-4100DN Black Toner Cartridge, Genuine (G2160)
Kyocera How to: Replace Toner - FS 2100dn, 4100dn, 4200dn & 4300dn - YouTube
Black Toner Cartridge Compatible with Kyocera FS-4100DN (N0558)
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 FS-4100DN Toner - Kyocera FS4100 Toner from $36.95
Kyocera TK-3112 1T02MT0US0 Toner Cartridge Black ECOSYS FS-4100DN - Sun Data Supply