Invention Grant
- Patent Title: Liquid ejection head and image forming device
- Patent Title (中): 液体喷头和成像装置
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Application No.: US14146078Application Date: 2014-01-02
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Publication No.: US09120320B2Publication Date: 2015-09-01
- Inventor: Ryohta Yoneta
- Applicant: Ryohta Yoneta
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2013-021841 20130206
- Main IPC: B41J2/175
- IPC: B41J2/175 ; B41J2/14

Abstract:
A liquid ejection head includes a plurality of nozzles to eject liquid drops; a plurality of individual liquid chambers communicating with the plurality of nozzles; a plurality of liquid inlet portions leading to the plurality of individual liquid chambers; a common liquid chamber to supply liquid to the plurality of individual liquid chambers; and a plurality of filter portions disposed between the common liquid chamber and the liquid inlet portions, each of the filter portions including filter holes and filtering the liquid, wherein a plurality of reinforcement parts are provided to partition the plurality of filter portions, each of the reinforcement parts includes a part facing some of the filter holes of a corresponding one of the plurality of filter portions in a liquid flow direction, with a gap between the filter holes and the reinforcement part.
Public/Granted literature
- US20140218450A1 LIQUID EJECTION HEAD AND IMAGE FORMING DEVICE Public/Granted day:2014-08-07
Information query
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