| 摘要 |
PURPOSE: To provide a highly reliable ink jet head which ensures an easy removal of air bubbles from its flow passage. CONSTITUTION: An ink feed restriction hole 4 is disposed on the outer side of a pressure chamber 5 when seen from the laminate direction of a base plate and is formed near the one end of a feed communication passage 38 and the other end thereof is laid on and connected to the end of the pressure chamber 5 when seen from the laminate direction of the base plate, whereby the ink feed restriction hole 4 is so arranged as to avoid its directly opposite position with respect to the pressure chamber 5 by the feed communication passage 38. |
