| 摘要 |
PROBLEM TO BE SOLVED: To provide an inkjet recording head capable of effectively removing air bubbles in a common ink flow path during suction recovery by generating an ink flow in the common ink flow path. SOLUTION: A first ink flow path part 71 which is formed so as to directly introduce the ink from an ink feeding opening 3 respectively to a plurality of foaming rooms in which elements 1 for delivering the ink by generating air bubbles in the ink by heat energy are arranged, and a second ink flow path part 72 which is formed so as to introduce the ink from the common ink flow path 8 formed on the opposite side to the ink feeding opening in relation to the arrangement of the foaming rooms, are provided. In this case, in a plurality of the first ink flow path parts, the flow paths through which the ink flows easier than that of the second ink flow path part and the flow paths through which the ink flows harder are included. As the result, the ink flow is generated in the common ink flow path during suction is recovered to be able to effectively remove the air bubbles in the common ink flow path. COPYRIGHT: (C)2009,JPO&INPIT |
