| 摘要 |
PROBLEM TO BE SOLVED: To prevent a junction interface of a liquid chamber part joined to a nozzle plate from being separated by collision with a tip part of a recording medium. SOLUTION: This liquid droplet delivery head includes a flow channel unit having the nozzle plate for delivering ink, and a plurality of pressure chambers communicated with an ink supply source for supplying the ink, an actuator unit arranged to change a volume of each pressure chamber, and a frame for supporting the flow channel unit and the actuator unit. The nozzle plate is joined to the flow channel unit, in the liquid droplet delivery head, and a plurality of protrusions protruded to a frame directional side is provided successively in the vicinity of an end part along a direction moving relatively with respect to at least the recording medium, out of the end part faced to the recording medium during a recording operation. COPYRIGHT: (C)2011,JPO&INPIT
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