Invention Grant
US07641312B2 Liquid ejecting head with nozzle opening and liquid ejecting apparatus including same
失效
具有喷嘴开口的液体喷射头和包括其的液体喷射装置
- Patent Title: Liquid ejecting head with nozzle opening and liquid ejecting apparatus including same
- Patent Title (中): 具有喷嘴开口的液体喷射头和包括其的液体喷射装置
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Application No.: US11496463Application Date: 2006-08-01
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Publication No.: US07641312B2Publication Date: 2010-01-05
- Inventor: Tomoaki Takahashi
- Applicant: Tomoaki Takahashi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2005-223058 20050801; JP2006-202176 20060725
- Main IPC: B41J2/135
- IPC: B41J2/135 ; B41J2/15

Abstract:
A liquid ejecting head of the present invention has a nozzle plate including a nozzle substrate composed of a non-conductive material in which nozzle openings pass through the nozzle substrate and a conductive film formed to cover at least a part of the inner peripheral wall surface of the nozzle opening. The film forming area where the conductive film is formed includes the moving range of a meniscus moving on the inner peripheral wall surface of the nozzle opening in accordance with the ejection operation of liquid drops from the nozzle opening. According to the present invention, even if a non-conductive nozzle plate is used, a charge can be injected smoothly into liquid drops without causing problems of deterioration of the image quality due to electrophoresis and of defective ejection due to foreign substances and gas generated by electrolysis.
Public/Granted literature
- US20070103511A1 Liquid ejecting head and liquid ejecting apparatus Public/Granted day:2007-05-10
Information query
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