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1. 发明申请

WO2009142958A1 PROCESS AND APPARATUS TO PROVIDE VARIABLE DROP SIZE EJECTION WITH AN EMBEDDED WAVEFORM 审中-公开
标题翻译：使用嵌入式波形提供可变尺寸输出的过程和设备
公开(公告)号：WO2009142958A1
公开(公告)日：2009-11-26
申请号：PCT/US2009/043619
申请日：2009-05-12
申请人： FUJIFILM DIMATIX, INC. , HASENBEIN, Robert
发明人： HASENBEIN, Robert
IPC分类号： B41J2/045 , B41J2/055 , B41J2/205
CPC分类号： B41J2/04595 , B41J2/04581 , B41J2/04588 , B41J2002/14491
摘要： Described herein is a process and apparatus for driving a droplet ejection device with embedded multi-pulse waveforms. In one embodiment, the process includes generating a multi-pulse waveform that includes drive pulses in predetermined positions. Next, the process includes applying the drive pulses to the actuator and causing the droplet ejection device to eject a first droplet of a fluid. The process also includes applying a second multi-pulse waveform having at least one embedded pulse to the actuator and causing the droplet ejection device to eject a second droplet of the fluid. Each embedded pulse is embedded between predetermined positions of two drive pulses. In some embodiments, the first and second droplets have different droplet sizes and these droplets are ejected at substantially the same effective drop velocity.
摘要翻译：这里描述了一种用嵌入式多脉冲波形驱动液滴喷射装置的方法和装置。在一个实施例中，该过程包括产生包括在预定位置的驱动脉冲的多脉冲波形。接下来，该过程包括将驱动脉冲施加到致动器并使液滴喷射装置喷射第一液体液滴。该过程还包括向致动器施加具有至少一个嵌入脉冲的第二多脉冲波形，并使液滴喷射装置喷射液体的第二液滴。每个嵌入的脉冲被嵌入在两个驱动脉冲的预定位置之间。在一些实施例中，第一和第二液滴具有不同的液滴尺寸，并且这些液滴以基本上相同的有效液滴速度喷射。

2. 发明申请

WO2009142959A1 METHOD AND APPARATUS TO PROVIDE VARIABLE DROP SIZE EJECTION WITH A LOW POWER WAVEFORM 审中-公开
标题翻译：提供具有低功率波形的可变尺寸喷射的方法和装置
公开(公告)号：WO2009142959A1
公开(公告)日：2009-11-26
申请号：PCT/US2009/043622
申请日：2009-05-12
申请人： FUJIFILM DIMATIX, INC. , HASENBEIN, Robert , DARBY, Samuel, E.
发明人： HASENBEIN, Robert , DARBY, Samuel, E.
IPC分类号： B41J2/045 , B41J29/38 , B41J2/175
CPC分类号： B41J2/04595 , B41J2/04581 , B41J2/04588 , B41J2002/14491
摘要： In one embodiment, a method for driving a droplet ejection device having an actuator includes applying a low power multi-pulse waveform having at least two drive pulses and at least one intermediate portion to the actuator. The method further includes alternately expanding and contracting a pumping chamber coupled to the actuator in response to the at least two drive pulses and the at least one intermediate portion. The method further includes causing the droplet ejection device to eject one or more droplets of a fluid in response to the pulses of the low power multi- pulse waveform. In some embodiments, at least one intermediate portion has a voltage level greater than zero and less than or equal to a threshold voltage level in order to reduce the power needed to operate the droplet ejection device.
摘要翻译：在一个实施例中，用于驱动具有致动器的液滴喷射装置的方法包括向致动器施加具有至少两个驱动脉冲和至少一个中间部分的低功率多脉冲波形。所述方法还包括响应于所述至少两个驱动脉冲和所述至少一个中间部分交替地扩展和收缩耦合到所述致动器的泵送室。该方法还包括使液滴喷射装置响应于低功率多脉冲波形的脉冲喷射一个或多个流体液滴。在一些实施例中，至少一个中间部分具有大于零并小于或等于阈值电压电平的电压电平，以便减少操作液滴喷射装置所需的功率。

3. 发明申请

WO2011049652A1 METHOD AND APPARATUS TO EJECT DROPS HAVING STRAIGHT TRAJECTORIES 审中-公开
标题翻译：具有直线轨道的喷射方法和装置
公开(公告)号：WO2011049652A1
公开(公告)日：2011-04-28
申请号：PCT/US2010/042401
申请日：2010-07-19
申请人： FUJIFILM DIMATIX, INC. , LETENDRE, William, R. , WANG, Xi , HASENBEIN, Robert , MCDONALD, Marlene , LAASPERE, Jaan
发明人： LETENDRE, William, R. , WANG, Xi , HASENBEIN, Robert , MCDONALD, Marlene , LAASPERE, Jaan
IPC分类号： B41J2/07 , B41J2/175
CPC分类号： B41J2/04588 , B41J2/04526 , B41J2/04586
摘要： Described herein is a method and apparatus for driving a drop ejection device to produce drops having straight trajectories. In one embodiment, a method for driving a drop ejection device having an actuator includes building a drop of a fluid with at least one drive pulse by applying a multi- pulse waveform having the at least one drive pulse and a straightening pulse to the actuator. Next, the method includes causing the drop ejection device to eject the drop with a straight trajectory in response to the pulses of the multi-pulse waveform. The straightening pulse is designed to ensure that the drop is ejected without a drop trajectory error.
摘要翻译：这里描述了用于驱动液滴喷射装置以产生具有直线轨迹的液滴的方法和装置。在一个实施例中，用于驱动具有致动器的液滴喷射装置的方法包括通过将具有至少一个驱动脉冲和矫直脉冲的多脉冲波形施加到致动器来构建具有至少一个驱动脉冲的流体液滴。接下来，该方法包括使滴液喷射装置响应于多脉冲波形的脉冲以直线轨迹弹出液滴。矫直脉冲设计用于确保液滴在没有液滴轨迹误差的情况下喷射。

4. 发明申请

WO2009151855A3 METHOD AND APPARATUS TO PROVIDE VARIABLE DROP SIZE EJECTION BY DAMPENING PRESSURE INSIDE A PUMPING CHAMBER 审中-公开
公开(公告)号：WO2009151855A3
公开(公告)日：2009-12-17
申请号：PCT/US2009/043616
申请日：2009-05-12
申请人： FUJIFILM DIMATIX, INC. , LETENDRE, William, R., Jr. , HASENBEIN, Robert
发明人： LETENDRE, William, R., Jr. , HASENBEIN, Robert
IPC分类号： B41J2/045 , B41J2/11 , B41J29/38
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.

5. 发明申请

WO2009143448A1 METHOD AND APPARATUS TO PROVIDE VARIABLE DROP SIZE EJECTION WITH LOW TAIL MASS DROPS 审中-公开
标题翻译：提供具有低尾巴质量流量的可变尺寸喷射的方法和装置
公开(公告)号：WO2009143448A1
公开(公告)日：2009-11-26
申请号：PCT/US2009/045017
申请日：2009-05-22
申请人： FUJIFILM DIMATIX, INC. , HASENBEIN, Robert
发明人： HASENBEIN, Robert
IPC分类号： B41J2/07 , B41J29/393 , B41J2/01 , B41J2/015
CPC分类号： B41J2/04596 , B41J2/04516 , B41J2/04581 , B41J2/04588 , B41J2/04595
摘要： Described herein is a method and apparatus for driving a drop ejection device to produce variable sized drops with multi-pulse waveforms. In one embodiment, a method for driving a drop ejection device having an actuator includes applying a multi-pulse waveform having at least one drive pulse and at least one break off pulse to the actuator. The method further includes building a drop of a fluid with the at least one drive pulse. The method further includes accelerating the break off of the drop with the at least one break off pulse. The method further includes causing the drop ejection device to eject the drop of a fluid in response to the pulses of the multi-pulse waveform. The break off pulse causes the break off of the drop formed by the at least one drive pulse in order to reduce the tail mass of the drop.
摘要翻译：这里描述了用于驱动液滴喷射装置以产生具有多脉冲波形的可变大小的液滴的方法和装置。在一个实施例中，用于驱动具有致动器的液滴喷射装置的方法包括向致动器施加具有至少一个驱动脉冲和至少一个断开脉冲的多脉冲波形。该方法还包括用至少一个驱动脉冲构建一滴流体。该方法还包括用至少一个断开脉冲来加速液滴的断裂。该方法还包括使滴液喷射装置响应多脉冲波形的脉冲喷射流体液滴。断开脉冲导致由至少一个驱动脉冲形成的液滴的中断，以便减小液滴的尾部质量。

6. 发明申请

WO2008089021A3 EJECTION OF DROPS HAVING VARIABLE DROP SIZE FROM AN INK JET PRINTER 审中-公开
公开(公告)号：WO2008089021A3
公开(公告)日：2008-07-24
申请号：PCT/US2008/050704
申请日：2008-01-10
申请人： FUJIFILM DIMATIX, INC. , LETENDRE, William , HASENBEIN, Robert , GARDNER, Deane A.
发明人： LETENDRE, William , HASENBEIN, Robert , GARDNER, Deane A.
IPC分类号： B41J2/045 , B41J29/38
摘要： A method for causing ink to be ejected from an ink chamber of an ink jet printer includes causing a first bolus of ink to be extruded from the ink chamber; and following lapse of a selected interval, causing a second bolus of ink to be extruded from the ink chamber. The interval is selected to be greater than the reciprocal of the fundamental resonant frequency of the chamber, and such that the first bolus remains in contact with ink in the ink chamber at the time that the second bolus is extruded.

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