- 专利标题: LIQUID EJECTION HEAD AND PRINTING DEVICE
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申请号: US18412613申请日: 2024-01-15
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公开(公告)号: US20240253348A1公开(公告)日: 2024-08-01
- 发明人: Yasuhito KIJI
- 申请人: Toshiba Tec Kabushiki Kaisha
- 申请人地址: JP Tokyo
- 专利权人: Toshiba Tec Kabushiki Kaisha
- 当前专利权人: Toshiba Tec Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 优先权: JP 23010530 2023.01.26
- 主分类号: B41J2/045
- IPC分类号: B41J2/045 ; B41J13/10
摘要:
A liquid ejection head includes a nozzle plate including a nozzle that ejects a liquid, a pressure chamber that communicates with the nozzle, an actuator configured to vary a volume of the pressure chamber in response to a driving signal, and a drive circuit configured to generate the driving signal. The driving signal includes an ejection waveform for ejecting the liquid and causing: an expansion potential difference for expanding the volume of the pressure chamber, a contraction potential difference for contracting the volume of the pressure chamber, and one or more intermediate potential differences between the expansion potential difference and the contraction potential difference, and a cancellation waveform that includes a trapezoidal wave for suppressing residual oscillation after the ejection of the liquid.
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