works after initial problems properly. Yellow toner cartridge is not being recognized first. Problem was tape on the contacts. After exposing the contacts the cassette was immediately recognized. Print results are to be distinguished from the original source as possible. Smell is slightly different than the original. How long I can not say yet keep the cassettes. Bin until now very happy with the product. Already have some time to wait for a replacement for the original since these are known to be quite expensive. Can the toner kit definitely recommend
