I bought these clays for the 2nd time. The first time, everything was fine. According to the toner box at the 2nd delivery DN 1350 for my Kyocera. But the toner can not use it properly. This has a 2 Plastic Groove has not the genuine toner. Difficult and with some violence goes toner use. Therefore, there is the lid minimal high. This interferes with the paper guide. There was the case of printed pages at a time 50 4x jam.
I now have this printer for 5 years with 7 Toner Jump and a predecessor again around 7 years, with 10 toner changes. I've never had problems with that. Too bad.