LIQUID STORE UNIT FOR LIQUID DROPLET DISCHARGE HEAD, LIQUID DROPLET DISCHARGE DEVICE AND DROPLET DISCHARGE METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a liquid droplet discharge device capable of stabilizing the discharge condition of the droplets by uniforming pressure conditions and capable of easily using and changing various kinds of liquids without being limited by liquid kinds. SOLUTION: The liquid store unit 20 for a liquid droplet discharge head is connected to the head 10 discharging the droplets from the discharge port 13 by being driven by an electric driving element 12 and feeds stored liquid W to the head 10. The unit 20 has a tank 30 storing the liquid W, a tube channel FL introducing outside air into the stored liquid in the tank, and a pressure reducing tool 54 reducing the pressure in the tank. The inner end 35a of the stored liquid of the tube channel FL is at substantially the same level as the discharge port 13. COPYRIGHT: (C)2009,JPO&INPIT