发明名称 |
Actuator device and ink jet recording apparatus |
摘要 |
A drive signal for driving a ink jet recording head as an actuator device indudes an expansion potential for deforming the piezoelectric actuator so as to expand the pressure generating chamber, a contraction potential for deforming the piezoelectric actuator so as to contract the pressure generating chamber, an ejection element for varying a potential of the drive signal from the expansion potential to the contraction potential to eject the ink drop from the nozzle, and a contraction holding element for holding the second potential to keep the contracted state of the pressure generating chamber. A duration of the ejection element is determined so as to match with a natural period of the piezoelectric actuator. A duration of the contraction holding element is determined such that a resulting value by adding the duration of the ejection element and the duration of the contraction holding element is matched with a natural period of the pressure generating chamber.
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申请公布号 |
US6485133(B1) |
申请公布日期 |
2002.11.26 |
申请号 |
US20000494420 |
申请日期 |
2000.01.31 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
TERAMAE, HIROFUMI;HOSONO, SATORU;NAKAMURA, YUICHI |
分类号 |
B41J2/045;(IPC1-7):B41J2/045 |
主分类号 |
B41J2/045 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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