Invention Grant
- Patent Title: Liquid ejection head and image forming apparatus including same
- Patent Title (中): 液体喷射头和包括它的成像设备
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Application No.: US13615331Application Date: 2012-09-13
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Publication No.: US08684498B2Publication Date: 2014-04-01
- Inventor: Masahiro Kuwata
- Applicant: Masahiro Kuwata
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2011-203647 20110916
- Main IPC: B41J2/14
- IPC: B41J2/14

Abstract:
A liquid ejection head including a nozzle plate having a nozzle array constructed of multiple nozzles from which liquid droplets are ejectable; a channel plate in which grooves that form part of multiple pressure chambers respectively communicating with the multiple nozzles are provided with partition walls interposed therebetween, a wall member that covers the grooves to form part of walls of the pressure chambers, and multiple first through-holes formed in the channel plate to connect the nozzles and the pressure chambers, respectively. The multiple first through-holes are provided with partition walls interposed therebetween, and each of the multiple first through-holes has a first opening and a second opening. The second opening is offset from the first opening in a direction in which the nozzle arrays extend. Each of the multiple first through-holes further has a portion between the first and second openings to change a direction of flow of liquid.
Public/Granted literature
- US20130070025A1 LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCLUDING SAME Public/Granted day:2013-03-21
Information query
IPC分类: