Invention Grant
US07645031B2 Liquid ejection head, method of manufacturing liquid ejection head, and image forming apparatus
失效
液体喷射头,液体喷射头的制造方法和图像形成装置
- Patent Title: Liquid ejection head, method of manufacturing liquid ejection head, and image forming apparatus
- Patent Title (中): 液体喷射头,液体喷射头的制造方法和图像形成装置
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Application No.: US11812040Application Date: 2007-06-14
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Publication No.: US07645031B2Publication Date: 2010-01-12
- Inventor: Katsumi Enomoto , Yasuhiko Maeda
- Applicant: Katsumi Enomoto , Yasuhiko Maeda
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2006-172993 20060622
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
The liquid ejection head includes: a liquid ejection unit which includes nozzles ejecting liquid, pressure chambers connected with the nozzles and filled with the liquid, and piezoelectric elements pressurizing the liquid in the pressure chambers; a frame substrate which has a hole section passing through the frame substrate and is disposed on a side of the liquid ejection unit reverse to a side on which the nozzles are arranged, the hole section being defined with a lateral wall and corresponding to a common liquid chamber accumulating the liquid to be supplied to the pressure chambers; a cover plate which is arranged on a side of the frame substrate reverse to a side adjacent to the liquid ejection unit; and through electrodes which pass through the lateral wall of the frame substrate and are exposed on the side adjacent to the liquid ejection unit and the side adjacent to the cover plate, wherein the piezoelectric elements are applied with drive signals via the through electrodes.
Public/Granted literature
- US20080002001A1 Liquid ejection head, method of manufacturing liquid ejection head, and image forming apparatus Public/Granted day:2008-01-03
Information query
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