公开(公告)号：US07641319B2

公开(公告)日：2010-01-05

申请号：US11503696

申请日：2006-08-14

申请人： Fuminori Takizawa

发明人： Fuminori Takizawa

IPC分类号： B41J2/045

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

摘要： There is provided a driving device of a liquid drop ejecting head, includes: a piezoelectric element for causing expulsion of liquid drops from an ejector which ejects liquid drops, a first electrode of the piezoelectric element being connected to a predetermined voltage; a switching section connected to a second electrode of the piezoelectric element, and able to switch among three states which are a charging state of the piezoelectric element, a discharging state of the piezoelectric element, and an open state; and a control section controlling switching of the switching section in a cycle which is shorter than a charging time or a discharging time of the piezoelectric element by the switching section.

摘要翻译： 提供了一种液滴喷射头的驱动装置，包括：用于从喷射液滴的喷射器排出液滴的压电元件，压电元件的第一电极连接到预定电压; 切换部，与压电元件的第二电极连接，能够在作为压电元件的充电状态的三种状态，压电元件的放电状态和开路状态之间切换; 以及控制部，其以比由所述切换部的所述压电元件的充电时间或放电时间短的周期来控制所述开关部的切换。

公开(公告)号：US06830305B1

公开(公告)日：2004-12-14

申请号：US09889653

申请日：2001-07-19

申请人： Fuminori Takizawa

发明人： Fuminori Takizawa

IPC分类号： B41J2938

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

摘要： A high-quality gray scale printing is attained by using an ink jet recording head having a simple and low-cost configuration and a general-purpose structure, and ink having common components. An ink jet recording head driving method to be disclosed comprises repeating a plurality of times a dot forming process for forming a plurality of dots on a recording medium, while an ink jet recording head is moved in a sub-scanning direction; the process comprising the steps of moving the ink jet recording head in a main scanning direction, generating a plurality of drive waveform signals according to a jet amount of ink droplets, selecting any one or none of the plurality of waveform signals for each of a plurality of nozzles according to gray scale information of printing data, and applying voltage to corresponding piezolectric actuators.

摘要翻译： 通过使用具有简单且低成本的结构和通用结构的喷墨记录头以及具有共同的部件的油墨来实现高质量的灰度打印。一种要公开的喷墨记录头驱动方法包括重复 多次在喷墨记录头沿副扫描方向移动时在记录介质上形成多个点的点形成处理; 该方法包括以下步骤：沿主扫描方向移动喷墨记录头，根据喷墨量产生多个驱动波形信号，为多个波导信号中的每一个选择多个波形信号 的喷嘴，根据打印数据的灰度信息，并向相应的压电致动器施加电压。

公开(公告)号：US20070229604A1

公开(公告)日：2007-10-04

申请号：US11503696

申请日：2006-08-14

申请人： Fuminori Takizawa

发明人： Fuminori Takizawa

IPC分类号： B41J2/045

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

摘要： There is provided a driving device of a liquid drop ejecting head, includes: a piezoelectric element for causing expulsion of liquid drops from an ejector which ejects liquid drops, a first electrode of the piezoelectric element being connected to a predetermined voltage; a switching section connected to a second electrode of the piezoelectric element, and able to switch among three states which are a charging state of the piezoelectric element, a discharging state of the piezoelectric element, and an open state; and a control section controlling switching of the switching section in a cycle which is shorter than a charging time or a discharging time of the piezoelectric element by the switching section.

摘要翻译： 提供了一种液滴喷射头的驱动装置，包括：用于从喷射液滴的喷射器排出液滴的压电元件，压电元件的第一电极连接到预定电压; 切换部，与压电元件的第二电极连接，能够在作为压电元件的充电状态的三种状态，压电元件的放电状态和开路状态之间切换; 以及控制部，其以比由所述切换部的所述压电元件的充电时间或放电时间短的周期来控制所述开关部的切换。

公开(公告)号：US20050062827A1

公开(公告)日：2005-03-24

申请号：US10945116

申请日：2004-09-21

申请人： Yasuhiro Otsuka ,  Shinji Seto ,  Kohei Murakami ,  Fuminori Takizawa

发明人： Yasuhiro Otsuka ,  Shinji Seto ,  Kohei Murakami ,  Fuminori Takizawa

IPC分类号： B41J13/00 ,  B41J2/01 ,  B41J3/54 ,  B41J11/00 ,  B41J29/00 ,  G03G15/00

CPC分类号： B41J3/54 ,  B41J11/006

摘要： At a printing unit which structures a printing apparatus, a portion of a transport path, which portion includes a rear portion of an upper guide path portion of a printing guide path, a sub-scanning guide path, a paper ejection buffer and a front portion of a branching guide path, is assembled to an upper face side of a sliding panel together with a printing section and a separation and ejection roller which are assembled to the upper face side of the sliding panel. The sliding panel is attached to a casing of the printing unit with a pair of guide rails interposed therebetween at a front end portion and a rear end portion. By sliding of this sliding panel, the portion of the transport path can be slid along a direction substantially intersecting a direction in which the transport path extends.

摘要翻译： 在构成打印装置的打印单元，传送路径的一部分，该部分包括打印引导路径的上引导路径部分的后部，副扫描引导路径，排纸缓冲区和前部 分支引导路径的组件与组装到滑动面板的上表面侧的打印部分和分离和排出辊一起组装到滑动面板的上表面侧。 滑动面板在前端部和后端部处分别安装有印刷单元的壳体，其间插入有一对导轨。 通过该滑动面板的滑动，输送路径的一部分能够沿与输送路径延伸的方向大致相交的方向滑动。

公开(公告)号：US20100079440A1

公开(公告)日：2010-04-01

申请号：US12368669

申请日：2009-02-10

申请人： Yoshiro YAMAGUCHI ,  Takayuki TAKEUCHI ,  Fuminori TAKIZAWA

发明人： Yoshiro YAMAGUCHI ,  Takayuki TAKEUCHI ,  Fuminori TAKIZAWA

IPC分类号： G09G5/00

CPC分类号： G09G3/344 ,  G02F1/1362 ,  G02F2001/1678 ,  G02F2203/30 ,  G02F2203/34 ,  G09G3/2003 ,  G09G2310/06 ,  G09G2310/063 ,  G09G2320/0247

摘要： There is provided a method for initializing an image display medium. The image display medium includes a pair of substrates, a common electrode, pixel electrodes that are arranged for respective pixels constituting rows and columns on the other substrate, a display layer in which groups of moving particles that move between the substrates in accordance with an electric field are dispersed in a dispersion medium enclosed between the substrates, and transistors that are connected to the pixel electrodes, respectively. Each transistor controls a voltage to be applied to the corresponding pixel. The method includes a first procedure of applying voltages to the source electrodes of the transistors of all the pixels collectively, and a second procedure of applying voltages to the gate electrodes of the transistors of all the pixels collectively while continuing the applying of the voltages in the first procedure.

摘要翻译： 提供了一种用于初始化图像显示介质的方法。 图像显示介质包括一对基板，公共电极，针对在另一个基板上构成行和列的各个像素排列的像素电极，显示层，其中根据电气在基板之间移动的移动颗粒组 场分散在封装在基板之间的分散介质中，分别连接到像素电极的晶体管。 每个晶体管控制要施加到相应像素的电压。 该方法包括对所有像素的晶体管的源极施加电压的第一过程，以及向所有像素的晶体管的栅电极施加电压的第二过程，同时继续施加电压 第一个程序。

公开(公告)号：US06450615B2

公开(公告)日：2002-09-17

申请号：US09026335

申请日：1998-02-19

申请人： Ryuichi Kojima ,  Yasuhiro Otsuka ,  Torahiko Kanda ,  Fuminori Takizawa ,  Masakazu Okuda ,  Hirofumi Nakamura

发明人： Ryuichi Kojima ,  Yasuhiro Otsuka ,  Torahiko Kanda ,  Fuminori Takizawa ,  Masakazu Okuda ,  Hirofumi Nakamura

IPC分类号： B41J2135

CPC分类号： B41J2/04528 ,  B41J2/04563 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2/1433 ,  B41J2202/11

摘要： Characteristics of a droplet ejection apparatus are change depending on the shape or cone angle of the main ink ejection chamber of the apparatus, or on the diameter of the ejection aperture of main ink ejection chamber. Accordingly, operation of the droplet ejection apparatus varies with the shape, angle, or diameter of main ink ejection chamber. The shape of the aperture according to the present invention is circular or regular polygonal so that surface waves are synthesized at the central portion of the ejection aperture. Moreover, the cone angle of the main chamber is set to 65° or less from the plane vertical to the droplet ejecting direction and the diameter of the ejection aperture is set to a value 1.25 times or more larger than a desired droplet diameter.

摘要翻译： 液滴喷射装置的特征根据装置的主喷墨室的形状或锥角，或主喷墨室的喷射孔的直径而变化。 因此，液滴喷射装置的操作随主喷墨室的形状，角度或直径而变化。 根据本发明的孔的形状是圆形或正多边形，使得在喷射孔的中心部分处合成表面波。 此外，主室的锥角从垂直于液滴喷射方向的平面设定为65°以下，喷射孔的直径设定为比期望的液滴直径大1.25倍以上的值。

公开(公告)号：US06276773B1

公开(公告)日：2001-08-21

申请号：US09613516

申请日：2000-07-10

申请人： Fuminori Takizawa

发明人： Fuminori Takizawa

IPC分类号： B41J2938

CPC分类号： B41J2/04581 ,  B41J2/04588 ,  B41J2/04593

摘要： A drive method and a drive of an ink-jet recording head which is capable of improving recording speed widely, and which is capable of materializing high quality recording without extending recording time even though the number of gradations increase, are provided. One-printing period T is divided into a plurality of segment T1, T2. The method and device cause plural kinds of drive-voltage-waveform SD1 to SD6 to be generated in accordance with size of an ink-drop in every respective segment T1, T2. The method and device select arbitrary drive-voltage-waveforms from among the plural kinds of drive-voltage-waveforms SD1 to SD6 supplied in every respective segment T1, T2 to supply to a vibration generator in every respective segment T1, T2. Thus it becomes possible to obtain a plurality of gradations during one-printing period T. It is capable of obtaining high quality printing image while improving recording speed widely. Further, printing time is not extended even though the number of gradations increase.

摘要翻译： 提供了能够广泛地提高记录速度的喷墨记录头的驱动方法和驱动器，并且即使渐变数量增加，也能够实现高质量记录而不延长记录时间。 单打印周期T被分成多个段T1，T2。 该方法和装置使得根据每个相应段T1，T2中的墨滴的大小来生成多种驱动电压波形SD1至SD6。 该方法和装置从在每个各个段T1，T2中提供的多种驱动电压波形SD1至SD6中选择任意的驱动电压波形，以供应给各个段T1，T2中的振动发生器。 因此，可以在一次打印期间T中获得多个灰度。能够广泛地提高记录速度的同时获得高质量的打印图像。 此外，即使渐变次数增加，打印时间也不会延长。

公开(公告)号：US20070076022A1

公开(公告)日：2007-04-05

申请号：US11447353

申请日：2006-06-06

申请人： Fuminori Takizawa

发明人： Fuminori Takizawa

IPC分类号： B41J29/38

CPC分类号： B41J2/04593 ,  B41J2/04505 ,  B41J2/0452 ,  B41J2/04541 ,  B41J2/04553 ,  B41J2/04566 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588

摘要： A driving circuit of liquid droplet ejecting head is disclosed for ejecting liquid droplets from a liquid droplet ejector by causing a pressure chamber of the liquid droplet ejector to be expanded and contracted in response to changes in a voltage applied to a piezoelectric element provided as an actuator. The driving circuit includes a power source that outputs power of a specified voltage which is applied to the piezoelectric element, a first switching element provided between the power source and the parallel connected piezoelectric element and discharging element, the first switching element being opened and closed in accordance with a first operation signal inputted thereto.

摘要翻译： 公开了一种液滴喷射头的驱动电路，用于通过使液滴喷射器的压力室响应于施加到设置为致动器的压电元件的电压的变化而膨胀和收缩而从液滴喷射器喷射液滴 。 驱动电路包括：输出施加到压电元件的规定电压的功率的电源;设置在电源和并联压电元件与放电元件之间的第一开关元件，第一开关元件被开闭 根据输入的第一操作信号。

公开(公告)号：US06347854B1

公开(公告)日：2002-02-19

申请号：US09570919

申请日：2000-05-15

申请人： Masakazu Okuda ,  Fuminori Takizawa ,  Yasuhiro Otsuka ,  Torahiko Kanda

发明人： Masakazu Okuda ,  Fuminori Takizawa ,  Yasuhiro Otsuka ,  Torahiko Kanda

IPC分类号： B41J2205

CPC分类号： B41J2/04573 ,  B41J2/0458 ,  B41J2/04591 ,  B41J2/04593 ,  B41J2/2128

摘要： In an image recording device which records an image on a recording medium responsive to a desired gradation in each pixel and which includes a recording head for jetting an ink droplet having a diameter at a timing therefrom, the diameter of the ink droplet is modulated in response to the desired gradation in each pixel while the timing is modulated dependent on the modulated diameter. Thus, a position of impact of the ink droplet is not deviated, so that quality of image is not deteriorated.

摘要翻译： 在图像记录装置中，响应于每个像素中的期望灰度记录在记录介质上的图像，并且包括用于在其时刻喷射直径的墨滴的记录头，响应于墨滴的直径 到每个像素期望的灰度，同时根据调制的直径调制定时。 因此，墨滴的冲击位置不会偏离，图像质量不会变差。

公开(公告)号：US07874647B2

公开(公告)日：2011-01-25

申请号：US11446884

申请日：2006-06-05

申请人： Fuminori Takizawa

发明人： Fuminori Takizawa

IPC分类号： B41J2/045 ,  B41J29/38 ,  B41J2/06

CPC分类号： B41J2/04581 ,  B41J2/04541

摘要： A method for driving a liquid droplet ejecting head having plural liquid droplet ejectors that eject liquid droplets from nozzles according to respective voltage changes applied to plural piezoelectric elements electrically connected in a matrix, wherein a switching element being provided with respect to each piezoelectric element and capable of grounding one of a pair of terminals of the piezoelectric element, the method including: inputting, per unit of one column of the piezoelectric elements, a column controlling signal for switching on/off the switching element; inputting, per unit of one row of the piezoelectric elements, a row signal for switching the other of the pair of terminals of the piezoelectric element to a predetermined voltage applied state, a grounded state or an opened state; and ejecting the liquid droplet from the liquid droplet ejector by forming a voltage change between the pair of terminals of the piezoelectric element, is provided.

摘要翻译： 一种用于驱动具有多个液滴喷射器的液滴喷射头的方法，所述液滴喷射器根据施加到以矩阵形式电连接的多个压电元件的各自的电压变化从喷嘴喷出液滴，其中开关元件相对于每个压电元件设置并且能够 将所述压电元件的一对端子中的一个接地，所述方法包括：每单位一列所述压电元件输入用于接通/断开所述开关元件的列控制信号; 输入一行压电元件的单位，将用于将压电元件的一对端子中的另一个端子切换到预定电压施加状态，接地状态或打开状态的行信号; 并且通过在压电元件的一对端子之间形成电压变化来提供液滴从液滴喷射器喷射。