Invention Grant
- Patent Title: Liquid discharge method, liquid discharge head and liquid discharge apparatus having projections within discharge port
- Patent Title (中): 液体排出方法,排液头和在排出口内具有突起的排液装置
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Application No.: US13046178Application Date: 2011-03-11
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Publication No.: US08167407B2Publication Date: 2012-05-01
- Inventor: Shuichi Murakami , Yasunori Takei
- Applicant: Shuichi Murakami , Yasunori Takei
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-343943 20051129
- Main IPC: B41J2/14
- IPC: B41J2/14 ; B41J2/16

Abstract:
A liquid discharge head is arranged in a manner that in the cross-section of a discharge port perpendicular to a liquid discharge direction, the discharge port includes at least one projection that is convex inside the discharge port; a first area, for holding a liquid surface connecting a pillar-shaped liquid that is elongated outside the discharge port; and second areas where a fluid resistance is lower than that in the first area so as to pull the liquid in the discharge port in a direction opposite to the liquid discharge direction. The first area is formed in the direction in which the projection is convex, and the second areas are formed on both sides of the projection.
Public/Granted literature
- US20110164092A1 LIQUID DISCHARGE METHOD, LIQUID DISCHARGE HEAD AND LIQUID DISCHARGE APPARATUS Public/Granted day:2011-07-07
Information query
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