Kyocera TK-3100 Toner Cartridge Black TK-3100For the best possible quality and flawless operation from your Kyocera FS 2100 laser printer, install a genuine Kyocera Black Laser Toner Kit (TK 3100). Make sure you order a spare toner cartridge when you see the Toner is Running Out error message on your FS 2100. Then, when you see the message Replace the Toner, you can quickly remove the old toner and restart your printing quickly. This standard yield cartridge is packed with enough black toner to