| 摘要 |
PROBLEM TO BE SOLVED: To keep a condition which can jet a liquid without frequently performing cleaning operation. SOLUTION: The liquid taken in from a liquid storing container is fed to a pressure room through a liquid introducing passage after it is passed through a filter through an enlarged passage. Then, the liquid is jetted from a nozzle by pressurizing it in the pressure room. In the enlarged passage, an air bubble catching member is provided on the upstream side of the filter. As the air bubbles flowing into the filter from a liquid flowing-in part on the flow of the liquid can be caught by doing so, the situation that the passage of the liquid disappears by covering the filter with the air bubbles can be avoided. As the result, it is possible to stably feed the liquid into the pressure room and to keep a condition that the liquid can be jetted. COPYRIGHT: (C)2008,JPO&INPIT |
