Invention Grant
- Patent Title: Inkjet recording head
- Patent Title (中): 喷墨记录头
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Application No.: US11364159Application Date: 2006-03-01
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Publication No.: US07681987B2Publication Date: 2010-03-23
- Inventor: Satoru Tobita , Ryouta Matsufuji , Tomohiko Koda
- Applicant: Satoru Tobita , Ryouta Matsufuji , Tomohiko Koda
- Applicant Address: JP Tokyo
- Assignee: Ricoh Printing Systems, Ltd.
- Current Assignee: Ricoh Printing Systems, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Whitham Curtis Christofferson & Cook, P.C.
- Priority: JPP2005-060176 20050304; JPP2005-328686 20051114
- Main IPC: B41J2/14
- IPC: B41J2/14 ; B41J2/045

Abstract:
An inkjet recording head includes a nozzle plate, chamber plate, and a diaphragm plate. The nozzle plate includes a plurality of nozzles for ejecting ink droplets, a plurality of connecting channels in communication with the nozzles and pressure chambers. The nozzles are formed in a row at a uniform pitch. The connecting channels extend from the nozzles alternately in opposite directions in a staggered formation and are offset a prescribed angle to a direction orthogonal to the row of nozzles. The chamber plate includes the pressure chambers, restrictors, and common ink chambers formed therein. Each pressure chamber has an elongated shape extending in a direction orthogonal to the row of nozzles. The pressure chambers are formed in rows, one on either side of the row of nozzles, so that the pressure chambers in one row oppose the corresponding pressure chambers in the other row. The diaphragm plate has a vibration plate that seals the pressure chambers.
Public/Granted literature
- US20060197809A1 Inkjet recording head Public/Granted day:2006-09-07
Information query
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