发明授权
US07681992B2 Element substrate, and printhead, head cartridge, and printing apparatus using the element substrate
失效
元件基板，以及使用元件基板的打印头，头盒和打印装置
- 专利标题： Element substrate, and printhead, head cartridge, and printing apparatus using the element substrate
- 专利标题（中）： 元件基板，以及使用元件基板的打印头，头盒和打印装置
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申请号： US11860794申请日： 2007-09-25
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公开(公告)号： US07681992B2公开(公告)日： 2010-03-23
- 发明人: Koichi Omata , Yoshiyuki Imanaka , Souta Takeuchi , Takaaki Yamaguchi , Kousuke Kubo
- 申请人： Koichi Omata , Yoshiyuki Imanaka , Souta Takeuchi , Takaaki Yamaguchi , Kousuke Kubo
- 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： JP2006-273414 20061004
- 主分类号： B41J2/04
- IPC分类号： B41J2/04 ; B41J2/05
摘要：
This invention relates to a printhead element substrate having a plurality of electrothermal transducers and a plurality of switching elements which drive the plurality of electrothermal transducers. The element substrate has a level converter which is shared by adjacent electrothermal transducers and steps up an input driving signal, and a switch circuit which supplies the driving signal output from the level converter to one of the adjacent electrothermal transducers. The switch circuit switches the supply destination of the driving signal in accordance with an external input selection signal.