发明授权
- 专利标题: Inkjet recording head having dynamic vibration absorber
- 专利标题(中): 具有动态吸振器的喷墨记录头
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申请号: US11179807申请日: 2005-07-13
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公开(公告)号: US07494210B2公开(公告)日: 2009-02-24
- 发明人: Takahiro Yamada , Toshiharu Sumiya , Tomohiko Koda , Shinya Kobayashi , Satoru Tobita
- 申请人: Takahiro Yamada , Toshiharu Sumiya , Tomohiko Koda , Shinya Kobayashi , Satoru Tobita
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Printing Systems, Ltd.
- 当前专利权人: Ricoh Printing Systems, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Whitham Curtis Christofferson & Cook, P.C.
- 优先权: JPP2004-208070 20040715
- 主分类号: B41J2/045
- IPC分类号: B41J2/045 ; B41J2/17
摘要:
An inkjet recording head includes a base member, an ink channel unit, a plurality of piezoelectric elements, and a dynamic vibration absorber. The ink channel unit is formed with a plurality of nozzle holes and a plurality of ink pressure chambers. The ink channel unit includes a diaphragm that defines part of each ink pressure chamber. Each piezoelectric element has one end fixed to the base member and another end attached to the diaphragm. Each piezoelectric element generates displacement in a displacement direction for deforming the diaphragm to eject ink droplets through a corresponding one of the plurality of nozzle holes. The dynamic vibration absorber is mounted on the base member for damping vibrations of the base member due to a resonance, the resonance occurring in a frequency range less than or equal to a predetermined frequency.
公开/授权文献
- US20060012647A1 Inkjet recording head having dynamic vibration absorber 公开/授权日:2006-01-19
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