| 摘要 |
PURPOSE:To reduce a wasteful discharge of ink, cleansing liquid, and a time, by a method wherein two liquid feed apertures are machined, being open to a channel path in a nozzle head, and ink is fed to one of the apertures and cleansing liquid to the other to shorten a common flow path for the two liquids. CONSTITUTION:A flow path channel for a channel path 51a and a nozzle hole 51b is formed by etching in a surface of a substrate 51 consisting of a silicon plate, and an upper cover 52 such as glasses is adhered firmly to the flow path channel surface for the blockade. The liquid feed apertures 52a are provided in the upper cover 52 so that they are open to the channel path 51a, and an ink feeder 58 and a cleansing liquid feeder 59 are connected to couplings 53a and 53b, connected to the apertures, through one-way valves 60 and 61. Additionally, a piezoelectric element 5 is fixed to the channel path 51a in the substrate 51, and is connected to an excitation source 4. |
