| 摘要 |
PURPOSE:To carry out the intermediate tone printing having the uniformity of image by a method wherein an ink ejection nozzle ejecting an ink and a transparent solvent ejection nozzle ejecting a transparent solvent are closely located and the ink and the transparent solvent are mixed outside of the nozzles. CONSTITUTION:On the starting of the printing, a pulse type do voltage is applied on opposing mesh electrodes provided on the each surface of an electric permeation membrane 16 of an ink reservoir section 5 to supply a specified amount of ink 4 from an ink supplying passage 7 to an ink ejection nozzle 13 of a mixture nozzle section 8 so that the ink is not ejected from an ink nozzle 15 to stay at an outlet with being a ball shape. Next, a specified voltage is applied on opposing electrodes 11a of an electrostrictive vibrator 11 to reduce a volume of an ink reservoir 3 by the distortion of the electrostrictive vibrator 11 so that a transparent solvent 2 is ejected from a transparent solvent nozzle 14. At that time, the ink ball is influenced by the movement of the transparent solvent 2 and they are unified with each other to form a mixture liquid which is ejected from a mixture nozzle section 8 and spouts. The pressure applied on the ink reservoir 3 is effectively transferred to the mixture nozzle section 8 without hindering a transparent solvent supply passage 6 by means of a one way valve 9 disposed therein. |
