发明授权
- 专利标题: Drive circuit for inkjet recording head, and inkjet recording device
- 专利标题(中): 喷墨记录头驱动电路,喷墨记录装置
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申请号: US13540709申请日: 2012-07-03
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公开(公告)号: US08727498B2公开(公告)日: 2014-05-20
- 发明人: Kaoru Satoh
- 申请人: Kaoru Satoh
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: JP2011-164581 20110727; JP2012-095730 20120419
- 主分类号: B41J2/30
- IPC分类号: B41J2/30
摘要:
A drive circuit for an inkjet recording head includes a plurality of electrically capacitive actuator elements, a drive signal source, a plurality of switching elements, and a plurality of resistances. The actuator elements are provided for a plurality of nozzles, and drive the nozzles to eject ink therefrom. The drive signal source outputs a drive signal for driving the actuator elements. The switching elements are connected to the respective actuator elements to separately drive the actuator elements, and selectively apply the output drive signal to the actuator elements. The resistances are provided for the respective actuator elements, and are connected to low potential sides of the actuator elements. Each of the resistances has a resistance value adjusted in accordance with the length of a wire between the corresponding one of the actuator elements and the drive signal source.
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