| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink-channel structure of an inkjet head which can make it easy to sufficiently ensure the thickness of a wall which forms the ink channel and ensure an ink-channel resistance adapting to the ink discharge. SOLUTION: In adjoining ink-channel sections 6, the breadth of a first ink channel 6A of a longer channel section extends to the maximum width that can ensure a predetermined width L between the first ink channel 6A of the longer channel section and a foaming chamber 4 in the side of a shorter channel section. Consequently, although the ink-channel sections 6 keep the height of the first ink channels 6A equal to each other and the height of the second ink channels 6B equal to each other, respectively, the breadth of the first ink channel 6A of the longer ink-channel section is wider than the breadth of the first ink channel 6A of the shorter ink-channel section. The predetermined width L is a distance by which an ink-channel wall 7 can have a sufficient adhesion area to a substrate 2. Further, when a desired cross-sectional area of the longer ink-channel section is not sufficient even by extending the width of the first ink channel 6A of the longer ink-channel section, it is ensured by extending the width of the second ink channel 6B of the longer ink-channel section. COPYRIGHT: (C)2008,JPO&INPIT
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