| 摘要 |
PURPOSE:To stabilize characteristics by forming an ink emitting orifice having rigidity and good positional accuracy, by forming a part of the hollow part of a member having an ink emitting orifice into an air flowline and providing an electrode communicated in the vicinity of the ink emitting orifice to the remaining part of said hollow part. CONSTITUTION:An ink nozzle member 160 is pref. formed of an etchable material having rigidity, for example, photosensitive glass and provided with a hollow part 17 at a place having to be present in the position corresponding to an air chamber 60. In this case, bridge parts 18 are left in order to take the communication with the outer peripheral part of said member 160 and to hold an integral shape. These bridge parts 18 are respectively provided so as to correspond to ink emitting orifices 201-207 and electrodes 141-147 are secured to a back surface and electrically connected to insert pins 151-157. Because the air stream flowed in from an air inflow passage 90 is flowed into an air layer 50 from the air chamber 60 through the hollow part 17, the flow of the air stream becomes uniform and the flow speeds and flow amount of air streams flowed out from the air emitting orifices 101-107 become uniform. |
