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公开(公告)号：US20090262156A1
公开(公告)日：2009-10-22
申请号：US12329733
申请日：2008-12-08
IPC分类号： B41J29/38
CPC分类号： B41J2/04581 , B41J2/04516 , B41J2/04573
摘要： A liquid droplet ejecting head includes: an ejector having a nozzle, a pressure chamber, and a drive element that applies pressure to a liquid inside the pressure chamber; and a controller that applies a drive waveform to the drive element. The controller vibrates a flow velocity of the liquid ejected from the nozzle in a first positive direction vibration mode for causing a leading end portion of the liquid droplet to be ejected from the nozzle toward the opposite side of the pressure chamber side; and a second positive direction vibration mode for adjusting the velocity of a trailing end portion of the liquid droplet. An interval between the first positive direction vibration mode and the second positive direction vibration mode is set so as to make the velocity of the trailing end portion of the columnar liquid droplet faster than the velocity of the leading end portion thereof.
摘要翻译： 液滴喷射头包括：具有喷嘴，压力室和对压力室内的液体施加压力的驱动元件的喷射器; 以及向驱动元件施加驱动波形的控制器。 控制器以第一正向振动模式使从喷嘴喷出的液体的流速振动，使得液滴的前端部从喷嘴朝向压力室侧的相对侧喷射; 以及用于调节液滴的后端部分的速度的第二正向振动模式。 第一正方向振动模式和第二正向振动模式之间的间隔被设定为使柱状液滴的后端部的速度比其前端部的速度快。
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2.发明授权Method of driving liquid-drop-ejecting recording head, and liquid-drop-ejecting recording device 有权液滴喷射记录头的驱动方法以及液滴喷射记录装置公开(公告)号：US07334856B2
公开(公告)日：2008-02-26
申请号：US11208300
申请日：2005-08-19
CPC分类号： B41J2/04596 , B41J2/04581 , B41J2/04588 , B41J2/04591 , B41J2/04595
摘要： A liquid-drop-ejecting recording head carries out image recording by applying a jetting pulse having a binary digital driving waveform to a piezoelectric element, providing a vibration wave to liquid accommodated in an accommodating chamber, and ejecting a liquid drop from a eject opening. The liquid-drop-ejecting recording head classifies each pixel in accordance with density data thereof. When recording a pixel belonging to a high density range, plural jetting pulses, whose pulse width is ½ times a natural vibration period of a liquid flow at a flow path of the liquid, are applied within a single printing cycle at an interval which is set in advance in accordance with density data of the pixel.
摘要翻译： 液滴喷射记录头通过将具有二进制数字驱动波形的喷射脉冲施加到压电元件来执行图像记录，向容纳室中容纳的液体提供振动波，并从喷射口喷出液滴。 液滴喷射记录头根据其浓度数据对每个像素进行分类。 当记录属于高密度范围的像素时，其脉冲宽度为液体流动路径上的液体流动的固有振动周期的1/2倍的多个喷射脉冲以设定的间隔在单个打印周期内被施加 提前按照像素的密度数据。
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3.发明申请Method of driving liquid-drop-ejecting recording head, and liquid-drop-ejecting recording device 有权液滴喷射记录头的驱动方法以及液滴喷射记录装置公开(公告)号：US20060209108A1
公开(公告)日：2006-09-21
申请号：US11208300
申请日：2005-08-19
IPC分类号： B41J29/38
CPC分类号： B41J2/04596 , B41J2/04581 , B41J2/04588 , B41J2/04591 , B41J2/04595
摘要： A liquid-drop-ejecting recording head carries out image recording by applying a jetting pulse having a binary digital driving waveform to a piezoelectric element, providing a vibration wave to liquid accommodated in an accommodating chamber, and ejecting a liquid drop from a eject opening. The liquid-drop-ejecting recording head classifies each pixel in accordance with density data thereof. When recording a pixel belonging to a high density range, plural jetting pulses, whose pulse width is ½ times a natural vibration period of a liquid flow at a flow path of the liquid, are applied within a single printing cycle at an interval which is set in advance in accordance with density data of the pixel.
摘要翻译： 液滴喷射记录头通过将具有二进制数字驱动波形的喷射脉冲施加到压电元件来执行图像记录，向容纳室中容纳的液体提供振动波，并从喷射口喷出液滴。 液滴喷射记录头根据其浓度数据对每个像素进行分类。 当记录属于高密度范围的像素时，其脉冲宽度为液体流动路径上的液体流动的固有振动周期的1/2倍的多个喷射脉冲以设定的间隔在单个打印周期内被施加 提前按照像素的密度数据。
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4.发明授权Device and method for driving ink jet printing head capable of attaining both high quality printing and reduction of ink consumption 失效用于驱动喷墨打印头的装置和方法，其能够实现高质量打印和降低墨水消耗公开(公告)号：US06685300B1
公开(公告)日：2004-02-03
申请号：US09613808
申请日：2000-07-11
申请人： Toshinori Ishiyama , Masakazu Okuda
发明人： Toshinori Ishiyama , Masakazu Okuda
IPC分类号： B41J2165
CPC分类号： B41J2/1652
摘要： A driving method for an ink jet printing head includes a vibration application step and an ink refresh operation step. In the vibration application step, small vibrations, which do not cause ink drop discharge from nozzles of the ink jet printing head, are applied to pressure-generation chambers of the ink jet printing head corresponding to nozzles which are not executing ink drop discharge. In the ink refresh operation step, ink refresh operation, for removing the ink in the nozzles and replacing the ink with fresh ink, is periodically executed according to a refresh operation cycle which is appropriately set based on the temperature and/or humidity measured around the ink jet printing head. The ink refresh operation is executed by means of forcible ink drop discharge from the nozzles, ink suction by a pump, etc. For example, the refresh operation cycle is set shorter as the temperature around the ink jet printing head gets lower and as the humidity around the ink jet printing head gets lower. By the vibration application step and the ink refresh operation step with such setting of the refresh operation cycle, stable discharge of minute ink drops and high quality ink jet printing can be maintained for the long term even if the ink drop discharge pause period continued long, without causing large ink consumption and long printing time due to the ink refresh operation.
摘要翻译： 喷墨打印头的驱动方法包括振动施加步骤和油墨刷新操作步骤。 在振动施加步骤中，对于与不进行墨滴放电的喷嘴相对应的喷墨打印头的压力发生室，施加不会从喷墨打印头的喷嘴排墨的小振动。 在油墨更新操作步骤中，根据刷新操作周期来周期性地执行用于去除喷嘴中的油墨并更换油墨的油墨刷新操作，该刷新操作周期是基于在周围测量的温度和/或湿度来适当设定的 喷墨打印头。 油墨刷新操作是通过喷嘴的强制墨滴排出，泵吸油等进行的。例如，当喷墨打印头周围的温度变低时，刷新操作周期变短，随着湿度 喷墨打印头周围的位置变低。 通过振动施加步骤和刷新操作步骤，通过这种设置刷新操作周期，即使墨滴放电暂停时间持续较长，也可以长期保持微小墨滴的稳定放电和高质量的喷墨打印， 而不会由于油墨刷新操作而导致墨水消耗大和打印时间长。
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公开(公告)号：US07396104B2
公开(公告)日：2008-07-08
申请号：US11189299
申请日：2005-07-26
申请人： Toshinori Ishiyama , Hiroshi Ikeda
发明人： Toshinori Ishiyama , Hiroshi Ikeda
CPC分类号： B41J2/16538
摘要： The ink-jet recording device of the present invention is provided with an ink-jet recording head that operates pressure waves on ink in a pressure chamber and ejects ink droplets from multiple nozzles; a wiper that wipes a nozzle face of the ink-jet recording head; a drive waveform applying component that applies a drive waveform to a drive element so that ink droplets are not ejected and ink floods the nozzle face; and a control component that, when performing wiping, drives the drive waveform applying component prior to initiating wiping and actuates the wiper in a state where the ink is flooded on the nozzle face.
摘要翻译： 本发明的喷墨记录装置设置有喷墨记录头，其在压力室中的墨上操作压力波，并从多个喷嘴喷射墨滴; 擦拭器，其擦拭喷墨记录头的喷嘴面; 驱动波形施加部件，其将驱动波形施加到驱动元件，使得墨滴不被喷射，并且墨水使喷嘴面泛滥; 以及控制部件，其在进行擦拭时，在开始擦拭之前驱动所述驱动波形施加部件，并且在所述墨水喷射到所述喷嘴面上的状态下驱动所述擦拭器。
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公开(公告)号：US20060176334A1
公开(公告)日：2006-08-10
申请号：US11189299
申请日：2005-07-26
申请人： Toshinori Ishiyama , Hiroshi Ikeda
发明人： Toshinori Ishiyama , Hiroshi Ikeda
IPC分类号： B41J29/38
CPC分类号： B41J2/16538
摘要： The ink-jet recording device of the present invention is provided with an ink-jet recording head that operates pressure waves on ink in a pressure chamber and ejects ink droplets from multiple nozzles; a wiper that wipes a nozzle face of the ink-jet recording head; a drive waveform applying component that applies a drive waveform to a drive element so that ink droplets are not ejected and ink floods the nozzle face; and a control component that, when performing wiping, drives the drive waveform applying component prior to initiating wiping and actuates the wiper in a state where the ink is flooded on the nozzle face.
摘要翻译： 本发明的喷墨记录装置设置有喷墨记录头，其在压力室中的墨上操作压力波，并从多个喷嘴喷射墨滴; 擦拭器，其擦拭喷墨记录头的喷嘴面; 驱动波形施加部件，其将驱动波形施加到驱动元件，使得墨滴不被喷射，并且墨水使喷嘴面泛滥; 以及控制部件，其在进行擦拭时，在开始擦拭之前驱动所述驱动波形施加部件，并且在所述墨水喷射到所述喷嘴面上的状态下驱动所述擦拭器。
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7.发明授权Liquid ejection apparatus and ejection control method for same, and inkjet apparatus 有权液体喷射装置及其喷射控制方法和喷墨装置公开(公告)号：US08622499B2
公开(公告)日：2014-01-07
申请号：US13474385
申请日：2012-05-17
IPC分类号： B41J29/38
CPC分类号： B41J2/04581 , B41J2/04588
摘要： A liquid ejection apparatus includes: a circuit control device including switches of which first ends are connected to pressure generating elements; a voltage waveform generating device configured to generate a voltage waveform to be supplied to second ends of the switches; and a switch control device which causes the switches to close and open. The voltage waveform has a waveform such that, when the switch is caused to close and open so that a portion of the voltage waveform is applied to the pressure generating element, a droplet is ejected from a nozzle corresponding to the pressure generating element to which the portion of the voltage waveform has been applied, whereas when a whole of the voltage waveform is applied to the pressure generating element, no droplet is substantially ejected from the nozzle corresponding to the pressure generating element to which the whole of the voltage waveform has been applied.
摘要翻译： 液体喷射装置包括：电路控制装置，其包括开关，其第一端连接到压力产生元件; 电压波形发生装置，被配置为产生要提供给所述开关的第二端的电压波形; 以及使开关闭合和断开的开关控制装置。 电压波形具有这样的波形，使得当使开关闭合并打开使得电压波形的一部分被施加到压力产生元件时，液滴从对应于压力发生元件的喷嘴喷射到其上， 电压波形的一部分被施加，而当整个电压波形被施加到压力产生元件时，没有液滴从对应于施加了整个电压波形的压力产生元件的喷嘴基本上喷出 。
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公开(公告)号：US06682175B2
公开(公告)日：2004-01-27
申请号：US10230363
申请日：2002-08-29
IPC分类号： B41J204
CPC分类号： B41J2/055 , B41J2002/14419 , B41J2002/14459
摘要： In an ink jet recording head, an ink pool has a main flow path communicating with an ink supply port and a plurality of branch flow paths branching from the main flow path. Each ejector has a pressure chamber, a pressure generating unit and a nozzle. The pressure chamber communicates with the corresponding one of the branch flow paths. The pressure generating unit generates a pressure wave in ink charged into the pressure chamber. The nozzle ejects the ink from the pressure chamber compressed by the pressure wave. At least one wall surface forming each of the branch flow paths is formed of a damper member elastically deformable in accordance with the change of pressure in the branch flow path.
摘要翻译： 在喷墨记录头中，墨水池具有与供墨口连通的主流路和从主流路分支的多个分支流路。 每个喷射器具有压力室，压力发生单元和喷嘴。 压力室与相应的一个分支流路连通。 压力产生单元产生加压到压力室中的油墨中的压力波。 喷嘴从由压力波压缩的压力室喷出墨水。 形成每个分支流动路径的至少一个壁表面由根据分支流动路径中的压力变化可弹性变形的阻尼器构件形成。
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公开(公告)号：US06629741B1
公开(公告)日：2003-10-07
申请号：US09520511
申请日：2000-03-08
申请人： Masakazu Okuda , Toshinori Ishiyama
发明人： Masakazu Okuda , Toshinori Ishiyama
IPC分类号： B41J2938
CPC分类号： B41J2/04525 , B41J2/04581 , B41J2/04588 , B41J2/04596
摘要： The present invention provides an ink jet recording head drive method for applying a drive voltage to an electro-mechanical converter which changes a pressure within a pressure generation chamber filled with ink, so that an ink droplet is ejected from a nozzle communicating with the pressure generation chamber, wherein the drive voltage has a voltage waveform including: a first voltage change process for increasing a volume of the pressure generation chamber so as to pull the ink meniscus at the nozzle opening toward the pressure generation chamber; and a second voltage change process for decreasing the volume of the pressure generation chamber, so as to eject an ink droplet, and wherein the first voltage change process is preceded by a preparatory voltage change process for slightly pulling an ink meniscus from the nozzle opening toward the pressure generation chamber.
摘要翻译： 本发明提供一种喷墨记录头驱动方法，用于将驱动电压施加到机电转换器，该机电转换器改变填充有墨的压力产生室内的压力，使得墨滴从与压力产生连通的喷嘴喷射 其中所述驱动电压具有电压波形，所述电压波形包括：第一电压变化过程，用于增加所述压力产生室的体积，以将所述喷嘴开口处的墨弯月面拉向所述压力产生室; 以及用于减小压力产生室的体积以便喷射墨滴的第二电压变化过程，并且其中所述第一电压变化过程之前是用于从所述喷嘴开口稍微拉动墨水弯月面的预备电压变化过程 压力发生室。
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公开(公告)号：US06578954B2
公开(公告)日：2003-06-17
申请号：US10118805
申请日：2002-04-09
IPC分类号： B41J2045
CPC分类号： B41J2/1404 , B41J2/14274 , B41J2002/14419 , B41J2002/14459 , B41J2202/11
摘要： An ink jet printing head includes a common ink channel and a plurality of ejectors (each of which includes a nozzle and a pressure generation chamber which is filled with ink supplied from the common ink channel) which are connected to the common ink channel for ejecting ink drops. The common ink channel is provided with an air damper, and acoustic capacitance Cp of the common ink channel per ejector is set based on acoustic capacitance Cn of the nozzle and acoustic capacitance Cc of the pressure generation chamber. For example, the acoustic capacitance Cp of the common ink channel per ejector is set so as to satisfy two conditions: Cp>Cn and Cp>20 Cc. By such setting of the acoustic capacitance 10 Cp, crosstalk between the ejectors, the increase of refill time, and refill time variation between nozzles in simultaneous ink drop ejection are eliminated efficiently, thereby stable high-frequency ink drop ejection is made possible even when a large number of nozzles are connected to the common ink channel and thereby high-speed printing is realized.
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