Everprint CHIP-KYO-TK-3100 is a cartridge chip listed for Kyocera TK-3100 and FS-2100. It is intended to provide the printer with cartridge information so the cartridge can be identified and used.
The chip stores status data such as the printed-page count and toner consumption. The printer uses counter information recorded on the chip to determine whether the cartridge can continue to be used. The listing labels this version 12.5K.