Kyocera offer a returns service for all used, genuine Kyocera toner cassettes. They will accept one return for each new, genuine Kyocera toner cassette you purchase. Kyocera higher yield toner cartridges mean fewer replacements and less waste. ECOSYS toner consumables are smaller than other printer cartridges and contain 2 types of plastic which are ID coded for easy recycling. Do your part for the environment by recycling your empty printer toner consumables and ink cartridges - visit the Kyocera website for further details.