发明授权
- 专利标题: Liquid ejection head and method of driving the same
- 专利标题(中): 液体喷射头及其驱动方法
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申请号: US13436204申请日: 2012-03-30
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公开(公告)号: US09067414B2公开(公告)日: 2015-06-30
- 发明人: Naoto Sasagawa , Koichi Kitakami
- 申请人: Naoto Sasagawa , Koichi Kitakami
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon USA, Inc., IP Division
- 优先权: JP2011-093013 20110419
- 主分类号: B41J29/38
- IPC分类号: B41J29/38 ; B41J2/015 ; B41J2/165 ; B41J2/14 ; B41J2/045
摘要:
A liquid ejection head includes a plurality of ejection orifices, liquid chambers, piezoelectric actuators, and driving units, and a control unit. Each ejection orifice ejects liquid, each liquid chamber communicates individually with an ejection orifice, each piezoelectric actuator is disposed individually for a liquid chamber and generates energy to eject liquid, and each driving unit individually drives a piezoelectric actuator. The control unit controls each driving unit to output a first voltage pulse to eject liquid or a second voltage pulse to vibrate a meniscus of liquid in a state in which the meniscus is held in a liquid chamber. The control unit selects ejection orifices used to eject liquid and controls to output the first voltage pulse to them, and selects ejection orifices not used to eject liquid and controls to output the second voltage pulse to them to perform respective concurrent recording and recovery operations.
公开/授权文献
- US20120268511A1 LIQUID EJECTION HEAD AND METHOD OF DRIVING THE SAME 公开/授权日:2012-10-25
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