发明授权
- 专利标题: Element substrate, printhead, and head cartridge
- 专利标题(中): 元件基板,打印头和头盒
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申请号: US12249484申请日: 2008-10-10
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公开(公告)号: US07896475B2公开(公告)日: 2011-03-01
- 发明人: Koichi Omata , Yoshiyuki Imanaka , Takaaki Yamaguchi , Kousuke Kubo , Souta Takeuchi
- 申请人: Koichi Omata , Yoshiyuki Imanaka , Takaaki Yamaguchi , Kousuke Kubo , Souta Takeuchi
- 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: JP2007-276756 20071024
- 主分类号: B41J2/05
- IPC分类号: B41J2/05
摘要:
A small-size element substrate with high electrical efficiency can be achieved when a plurality of printing element arrays having the same discharge amount exist on a single element substrate, and transistors which form driver arrays corresponding to the respective printing element arrays are formed at different array densities including transistors which form a driver array corresponding to a printing element array having a different discharge amount. The area of each transistor of the first driver array corresponding to the first printing element array is set larger than that of each transistor of the second driver array corresponding to the second printing element array. The wiring width of the first power supply wiring pattern corresponding to the first printing element array in a direction perpendicular to the printing element array is set smaller than that of the second power supply wiring pattern corresponding to the second printing element array.
公开/授权文献
- US20090109261A1 ELEMENT SUBSTRATE, PRINTHEAD, AND HEAD CARTRIDGE 公开/授权日:2009-04-30