发明名称 |
METHOD AND APPARATUS TO PROVIDE VARIABLE DROP SIZE EJECTION BY DAMPENING PRESSURE INSIDE A PUMPING CHAMBER |
摘要 |
Described herein is a method and apparatus for driving a droplet ejection device with multi-pulse waveforms. In one embodiment, a method for driving a droplet ejection device having an actuator includes applying a multi-pulse waveform having two or more drive pulses and a cancellation pulse to the actuator. The method further includes generating a pressure response wave in a pumping chamber in response to each pulse. The method further includes causing the droplet ejection device to eject a droplet of a fluid in response to the drive pulses of the multi-pulse waveform. The method further includes canceling the pressure response waves associated with the drive pulses with the pressure response wave associated with the cancellation pulse.
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申请公布号 |
US2009289983(A1) |
申请公布日期 |
2009.11.26 |
申请号 |
US20090426145 |
申请日期 |
2009.04.17 |
申请人 |
LETENDRE JR WILLIAM R;HASENBEIN ROBERT |
发明人 |
LETENDRE, JR. WILLIAM R.;HASENBEIN ROBERT |
分类号 |
B41J29/38 |
主分类号 |
B41J29/38 |
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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