公开(公告)号：US4549191A

公开(公告)日：1985-10-22

申请号：US627806

申请日：1984-07-05

申请人： Hiromichi Fukuchi ,  Toyoji Ushioda

发明人： Hiromichi Fukuchi ,  Toyoji Ushioda

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/14 ,  G01D15/16

CPC分类号： B41J2/14233 ,  B41J2002/14379 ,  B41J2202/12

摘要： A multi-nozzle ink drop-on-demand type of ink-jet printing head is able to deliver ink droplets at a higher rate of speed through a use of capillary action. Each of the many nozzles receives the ink required to form a droplet from an individually associated pressure chamber which is squeezed by its own (preferably piezoelectric) driving transducer. A capillary supply path by-passes each of the pressure chambers to provide an initial ink supply which is the start of a droplet formation that is completed upon the operation of the driving transducer. Thus, a time lag is eliminated, which would otherwise be required to start the droplet formation, and that lag elimination enables a faster ink jet response.

摘要翻译： 多喷嘴墨滴式喷墨打印头能够通过使用毛细作用以更高的速度传送墨滴。 许多喷嘴中的每一个都接收从由其自己的（优选地是压电的）驱动换能器挤压的单独关联的压力室形成液滴所需的油墨。 毛细管供给路径绕过每个压力室以提供初始供墨，这是在驱动换能器的操作完成的液滴形成的开始。 因此，消除了时间滞后，否则这将需要启动液滴形成，并且滞后消除能够实现更快的喷墨响应。

公开(公告)号：US4688048A

公开(公告)日：1987-08-18

申请号：US903736

申请日：1986-09-04

申请人： Ryosuke Uematsu ,  Toyoji Ushioda ,  Hiromichi Fukuchi

发明人： Ryosuke Uematsu ,  Toyoji Ushioda ,  Hiromichi Fukuchi

IPC分类号： B41J2/045 ,  G01D15/18

CPC分类号： B41J2/04533 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2002/14379

摘要： A drop-on-demand ink-jet printing head has an ink chamber filled with ink from an ink supply reservoir. The ink chamber has a deflectable upper elastic surface, a deflection of which increases ink fluid pressure. A deflection of said surface exciting a plurality of resonant pressure vibration modes within the chamber. A pressure increase within the chamber causing an ink droplet to be projected out a nozzle at one end of the chamber. A piezoelectric transducer is fixed on the elastic surface to deflect it and excite resonant vibration with a plurality of nodes and loops or antinodes. The transducer is positioned on the elastic surface at one of the loops or antinodes of a preselected one of the pressure vibration modes to excite the pressure modes with a short time constant (high frequency) which enables a very fine droplet of small volume to be projected. This can be done without reducing the cross sectional area of the nozzle or the velocity of the droplet.

摘要翻译： 一种按需喷墨打印头具有从供墨容器填充墨水的墨水室。 墨水室具有可偏转的上弹性表面，其偏转增加墨流体压力。 所述表面的偏转激发腔室内的多个谐振压力振动模式。 室内的压力增加，使得墨滴从腔的一端的喷嘴突出。 压电传感器固定在弹性表面上以使其偏转并用多个节点和环或波腹激发谐振。 传感器位于弹性表面上的预选压力振动模式的一个环或波腹中，以短时间常数（高频）激发压力模式，使得能够投射体积非常小的微滴 。 这可以在不减小喷嘴的横截面积或液滴的速度的情况下进行。

公开(公告)号：US07559641B2

公开(公告)日：2009-07-14

申请号：US11203874

申请日：2005-08-15

申请人： Toru Nishida ,  Hiroaki Satoh ,  Akira Mihara ,  Kiyoshi Hosoi ,  Satoshi Mohri ,  Toyoji Ushioda ,  Takeshi Zengo ,  Koichi Saitoh

发明人： Toru Nishida ,  Hiroaki Satoh ,  Akira Mihara ,  Kiyoshi Hosoi ,  Satoshi Mohri ,  Toyoji Ushioda ,  Takeshi Zengo ,  Koichi Saitoh

IPC分类号： B41J2/01

CPC分类号： B41J13/0045 ,  B41J3/60 ,  B41J11/007

摘要： An image recording apparatus is disclosed wherein an image is recorded on a recording medium based on image information by ejecting liquid droplets from a liquid droplet ejecting head. A liquid droplet ejecting head is provided which has an ejection region substantially corresponding to a width of the recording medium. A conveyor unit is provided which conveys the recording medium to the ejection region of the liquid droplet ejecting head with the recording medium attracted and attached thereto and supported thereon. The recording medium is fed from the conveyor unit to a paper discharge section. Further, a plurality of attracting and supporting sub-units are provided which are vertically moved with the recording medium, which is delivered thereto from the conveyor unit, attracted and attached thereto and supported thereon, thereby conveying the recording medium to a subsequent step.

摘要翻译： 公开了一种图像记录装置，其中通过从液滴喷射头喷射液滴，基于图像信息将图像记录在记录介质上。 提供一种液滴喷射头，其具有基本对应于记录介质的宽度的喷射区域。 提供了一种传送单元，其将记录介质传送到液滴喷射头的喷射区域，其中吸收并附着在其上的记录介质被支撑在其上。 记录介质从输送单元供给到排纸部。 此外，设置有多个吸引和支撑子单元，其与从传送单元传送到其上的记录介质垂直移动，被吸引并附着在其上并被支撑在其上，从而将记录介质传送到随后的步骤。

公开(公告)号：US20060209153A1

公开(公告)日：2006-09-21

申请号：US11203874

申请日：2005-08-15

申请人： Toru Nishida ,  Hiroaki Satoh ,  Akira Mihara ,  Kiyoshi Hosoi ,  Satoshi Mohri ,  Toyoji Ushioda ,  Takeshi Zengo ,  Koichi Saitoh

发明人： Toru Nishida ,  Hiroaki Satoh ,  Akira Mihara ,  Kiyoshi Hosoi ,  Satoshi Mohri ,  Toyoji Ushioda ,  Takeshi Zengo ,  Koichi Saitoh

IPC分类号： B41J2/205

CPC分类号： B41J13/0045 ,  B41J3/60 ,  B41J11/007

摘要： An image recording apparatus is disclosed wherein an image is recorded on a recording medium based on image information by ejecting liquid droplets from a liquid droplet ejecting head. A liquid droplet ejecting head is provided which has an ejection region substantially corresponding to a width of the recording medium. A conveyor unit is provided which conveys the recording medium to the ejection region of the liquid droplet ejecting head with the recording medium attracted and attached thereto and supported thereon. The recording medium is fed from the conveyor unit to a paper discharge section. Further, a plurality of attracting and supporting sub-units are provided which are vertically moved with the recording medium, which is delivered thereto from the conveyor unit, attracted and attached thereto and supported thereon, thereby conveying the recording medium to a subsequent step.

公开(公告)号：US06241345B1

公开(公告)日：2001-06-05

申请号：US09221141

申请日：1998-12-28

申请人： Toyoji Ushioda

发明人： Toyoji Ushioda

IPC分类号： B41J2938

CPC分类号： B41J2/04525 ,  B41J2/04541 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/2128

摘要： An ink jet recording head has a plurality of pressure chambers each driven by a piezoelectric element for ejection of ink droplets having different diameters from a nozzle. The drive voltage for the piezoelectric element has a controlled rise-time, controlled pulse period, and a controlled fall-time for ejecting ink droplets having different diameters and a constant velocity.

摘要翻译： 喷墨记录头具有多个压力室，每个压力室由压电元件驱动，用于喷射具有与喷嘴不同直径的墨滴。 压电元件的驱动电压具有受控的上升时间，受控脉冲周期和用于喷射具有不同直径和恒定速度的墨滴的可控下落时间。

公开(公告)号：US06206496B1

公开(公告)日：2001-03-27

申请号：US09199279

申请日：1998-11-25

申请人： Toyoji Ushioda

发明人： Toyoji Ushioda

IPC分类号： B41J2938

CPC分类号： B41J2/04581 ,  B41J2/04588 ,  B41J2202/10

摘要： An ink jet recording head according to the present invention ejects an ink droplet from a nozzle by applying a drive voltage to an electro-mechanical transducer located at the position corresponding to a pressure generation chamber, and deforming the electro-mechanical transducer. In the voltage wave form of the drive voltage that the ink jet recording head applies to the electro-mechanical transducer during a recording time, the rise time up to the peak voltage, and the fall time down to the basic voltage are both equal to approximately a half of the natural period To of the acoustic oscillation of the ink in an ink-flow course system, whereas the time Tw from the beginning of rising to the beginning of falling is equal to integer-times the natural period To including one.

摘要翻译： 根据本发明的喷墨记录头通过向位于对应于压力产生室的位置的机电换能器施加驱动电压并且使机电换能器变形而从喷嘴喷射墨滴。 在记录时间期间喷墨记录头应用于机电换能器的驱动电压的电压波形形式，直到峰值电压的上升时间和基本电压的下降时间都等于大约 在油墨流动系统中油墨的声振荡的一半，而从上升到开始下降的时间Tw等于自然周期的整数倍包括1。