发明授权
- 专利标题: Liquid ejection head and liquid ejection apparatus
- 专利标题(中): 液体喷射头和液体喷射装置
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申请号: US11831757申请日: 2007-07-31
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公开(公告)号: US07789495B2公开(公告)日: 2010-09-07
- 发明人: Yasuyuki Matsumoto , Tetsushi Takahashi , Akira Matsuzawa
- 申请人: Yasuyuki Matsumoto , Tetsushi Takahashi , Akira Matsuzawa
- 申请人地址: JP Tokyo
- 专利权人: Seiko Epson Corporation
- 当前专利权人: Seiko Epson Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Workman Nydegger
- 优先权: JP2006-211484 20060802
- 主分类号: B41J2/045
- IPC分类号: B41J2/045
摘要:
A liquid ejection head including: a flow-channel forming substrate having a pressure generating chamber which communicates with a liquid supply channel which communicates with one end of the pressure generating chamber in terms of a first direction so as to have a first length for supplying liquid to the pressure generating chamber; and a pressure generating unit that causes the change in pressure in the pressure generating chamber, wherein the liquid supply channel is formed by narrowing the width of the pressure generating chamber in a second direction substantially perpendicular to the first direction so as to have a second length shorter than the first length, a stepped surface is formed between the side surface of the pressure generating chamber in the second direction and the side surface of the liquid supply channel in the second direction, and wherein a bridge is provided at a corner defined by the stepped surface, the side surface of the pressure generating chamber in the second direction on the stepped surface side, and one of the surfaces of the pressure generating chamber in a third direction which is orthogonal to the first direction and the second direction of the flow-channel forming substrate for bridging the corner.
公开/授权文献
- US20080030552A1 LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS 公开/授权日:2008-02-07