发明申请
- 专利标题: PRINT HEAD AND INKJET PRINTING APPARATUS
- 专利标题(中): 打印头和喷墨打印设备
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申请号: US14115968申请日: 2012-05-31
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公开(公告)号: US20140125735A1公开(公告)日: 2014-05-08
- 发明人: Yasunori Takei , Kenji Yabe , Takuma Kodoi , Ken Ikegame , Isamu Horiuchi , Hyou Takahashi
- 申请人: Yasunori Takei , Kenji Yabe , Takuma Kodoi , Ken Ikegame , Isamu Horiuchi , Hyou Takahashi
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: JP2011-131155 20110613
- 国际申请: PCT/JP2012/003621 WO 20120531
- 主分类号: B41J2/14
- IPC分类号: B41J2/14
摘要:
A print head includes an energy generating element, a chamber for accommodating liquid, and an ejection opening for ejecting liquid from the chamber, thus applying the energy to the liquid in the chamber from the energy generating element to eject the liquid from the ejection opening, wherein the ejection opening includes at least two projections convex to an inside of the ejection opening in a cross section perpendicular to a liquid ejecting direction and has a tapered angle Φ1 in regard to the liquid ejecting direction, enabling a meniscus of the liquid to be formed therebetween at the liquid ejecting time, and an outer edge portion has a tapered angle Φ2 in regard to the liquid ejecting direction, wherein the tapered angles Φ1 and Φ2 are defined to meet a formula of 0°≦Φ1≦10° and a formula of Φ2>Φ1.
公开/授权文献
- US08936350B2 Print head and inkjet printing apparatus 公开/授权日:2015-01-20