| 摘要 |
PURPOSE:To burst bubbles efficiently so as to discharge ink stably and at high speed by an ink jet record head wherein film boiling is generated in ink on a heat working part and bubbles generated burst when exposed to the outside air at discharge outlets so as to discharge the ink. CONSTITUTION:A fluid resistance element 332 is arranged at a part opposite to a discharge outlet 333 of a heating part 331 of a record head. Bubbles generated in ink growing toward a liquid chamber 334 by heat are inhibited and grown only toward the discharge outlet efficiently and burst in contact with the outside air so as to discharge the ink. |
