| 摘要 |
PURPOSE:To enable high speed recording with greater frequency response by recording ink particles only necessary for recording with a charge deflection among those of constant size generated through the excitation of a nozzle being fed with a pressure ink all the time. CONSTITUTION:An upper cover 22 having an ink feeding hole 26 communicating to an ink feeding pipe 23 is joined on to a base plate 21 on which a nozzle hole 25 communicating to an ink chamber 24 is formed like a groove. An electric-mechanical conversion element 5 is bonded on the surface corresponding to the ink chamber 24 of the base plate 21 to form a nozzle head 1. A high frequency signal voltage is applied to the element 5 from a high frequency source 4 to excite the element 5 and the base plate 21 to jet ink particles 3 from the hole 25 at a cycle equal to the frequency. Then, the ink particles 3 are charged with a charging electrode 6 connected to an information signal source 7 and passed through a deflection electrode 8 connected to a deflection source to a course 3' according to the charge level of the ink particles 3 so that they can reaches the surface of a recording body 10 whereby an image 11 is formed. |
