| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jetting head which minimizes adverse effects by bubbles, by properly setting a shape of an effective filtration face of a filter by an impregnation seal member. SOLUTION: The liquid jetting head is configured to include a channel forming member 32 where a liquid container 2 is loaded, and a liquid jetting part 25 including liquid pressure generation chambers 12, nozzle openings 11, liquid pressuring means and the like is set; a hollow liquid supply needle 27 fitted to the channel forming member 32; and the filter 31 arranged at a liquid channel 26 which guides a liquid supplied to the liquid supply needle 27 to the liquid jetting part 25. The filter 31 is made a filter part 48 formed by impregnating the impregnation seal member 50 disposed in the periphery of the filter into a filter material. The filter part 48 is set in the liquid channel 26. A boundary of an impregnation region and a non impregnation region of the impregnation seal member 50 is made clear, and the shape of the effective filtration face of the filter is set properly. COPYRIGHT: (C)2004,JPO |
