发明授权
US07681990B2 Liquid jetting apparatus and method for switchably driving heaters
失效
液体喷射装置和可切换驱动加热器的方法
- 专利标题: Liquid jetting apparatus and method for switchably driving heaters
- 专利标题(中): 液体喷射装置和可切换驱动加热器的方法
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申请号: US11724297申请日: 2007-03-15
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公开(公告)号: US07681990B2公开(公告)日: 2010-03-23
- 发明人: Mitsuhiro Matsumoto
- 申请人: Mitsuhiro Matsumoto
- 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: Fitzpatrick Cella Harper & Scinto
- 优先权: JP2006-074526 20060317
- 主分类号: B41J2/05
- IPC分类号: B41J2/05
摘要:
A liquid ejecting apparatus includes an element substrate having thereon a plurality of heaters for generating energy for ejecting liquid; a plurality of liquid chambers provided on the element substrate and having ejection outlets for ejecting the liquid, wherein a plurality of the heaters are disposed in each of the liquid chambers, and wherein one part of the heaters and the other part of the heaters are switchably operable; and a switching unit for switching between a mode in which the one part of the heaters is actuated as main heaters, and the other part of the heaters stands by as stand-by heaters, and a mode in which the other part of the heaters is actuated as main heaters, and the one part of heaters stands by as stand-by heaters. A center of gravity of the one part of heaters and a center of gravity of the other part of heaters are aligned with each other in a plane of the element substrate, and surfaces of the heaters are protected by an anti-cavitation film comprising metal.
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