| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid droplet jet device having many nozzles arranged in a line, and large intervals between pressure chambers to prevent crosstalk, while reducing the variation of a distance between the nozzle and the pressure chamber to obtain uniform jetting characteristics. <P>SOLUTION: A plurality of nozzles arranged at predetermined nozzle pitches in a first direction are classified into a plurality of nozzle groups 91 constituted of a plurality of first nozzles 54a, and second nozzles 54b held between two nozzle groups 91 in the first direction. The first nozzles 54a constituting the plurality of nozzle groups 91 are arranged in a line to constitute a first nozzle train 92, and the plurality of corresponding first pressure chambers 53a are also arranged in a line. Furthermore, the arrangement interval of the first pressure chambers 53a is larger than the predetermined nozzle pitch, and a second pressure chamber 53b communicating with the second nozzle 54b is disposed at a position different from the first pressure chamber 54a in a second direction crossing the first direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
