Invention Grant
- Patent Title: Liquid ejection head
- Patent Title (中): 液体喷头
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Application No.: US12545478Application Date: 2009-08-21
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Publication No.: US07980663B2Publication Date: 2011-07-19
- Inventor: Mitsuhiro Matsumoto , Keiji Tomizawa , Shuichi Murakami
- Applicant: Mitsuhiro Matsumoto , Keiji Tomizawa , Shuichi Murakami
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-222769 20080829
- Main IPC: B41J2/14
- IPC: B41J2/14 ; B41J2/05

Abstract:
A print head can improve an ink refill speed to reduce the time from the end of one ejection of ink droplets until the beginning of a next ejection of ink droplets and maintain the high quality of images obtained by printing. An ink jet print head has an ejection port portion including a first ejection port portion communicating with atmosphere, and a second ejection port portion having a cross-section which extends in a direction orthogonal to an ejecting direction and which is larger than that of the first ejection port portion. The second ejection port portion is formed between a bubbling chamber and the first ejection port portion. In the ink jet print head, an ejection port portion first axis is located away from an ejection port portion second axis.
Public/Granted literature
- US20100053277A1 LIQUID EJECTION HEAD Public/Granted day:2010-03-04
Information query
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