| 摘要 |
A printing apparatus which includes an ink jet head (100) having a plurality of nozzles for discharging ink supplied thereto from an ink supplying part (50) is configured such that it comprises a head body member (3) including a plurality of pressure chambers provided individually for the nozzles for being filled with the ink and a plurality of pressurization elements provided individually for the pressure chambers for pressurizing the pressure chambers to discharge the ink in the pressure chambers from the nozzles, that an ink staying space (130) for temporarily staying the ink from the ink supplying part (50) therein is formed between the head body member (3) and the ink supplying part (50), and that a plurality of ink supplying paths (129) for communicating the ink staying space (130) and the plurality of pressure chambers individually with each other are formed in the head body member (3) such that one end side of each of the ink supplying paths (129) is open to the ink staying space (130) on an outer face of the head body member (3) and the other end side of each of the ink supplying paths (129) is open to a corresponding one of the pressure chambers. Consequently, since the ink staying space (130) and the pressure chambers are communicated with each other individually by the ink supplying paths (129), ink from the ink supplying part (50) can be supplied directly into the pressure chambers. Therefore, since there is no necessity to provide ink supplying ports for exclusive use in the head body member (3), the ink jet head and hence the printing apparatus can be miniaturized and besides the degree of integration of the ink jet head can be improved. Further, supply of ink to the pressure chambers can be made uniform to improve the printing quality.
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