The Zeno Treatment Tip Cartridge that come with your Zeno allows 90 treatment cycles, as shown by the number on the top of the cartridge. Once the treatment cycles have been used, the Treatment Tip Cartridge must be replaced.To remove the Treatment Tip Cartridge, first make sure that Zeno is powered off. Hold Zeno upright in one hand and pull the Treatment Tip Cartridge up and off with the other hand. Take care to pull firmly and straight upward to avoid damaging the connector pins. The used Zeno Treatment Tip Cartridge has no value; please dispose of it properly.
To attach a new Treatment Tip Cartridge, place Zeno on a flat surface and hold it upright in one hand with the buttons facing you. Holding the replacement cartridge in the other hand, line up the cartridge so that the Treatment Tip is to the right and above the Treatment Activation Button. Press the cartridge straight down onto Zeno, taking care to press firmly and directly down to ovoid damaging the cartridge connector. Do Not Force! The tip should attach easily. If it does not, recheck your alignment.