公开(公告)号：US08845081B2

公开(公告)日：2014-09-30

申请号：US13605686

申请日：2012-09-06

申请人： Masaki Oikawa ,  Keiji Tomizawa

发明人： Masaki Oikawa ,  Keiji Tomizawa

IPC分类号： B41J2/05 ,  B41J2/04 ,  B41J2/14

CPC分类号： B41J2/14145 ,  B41J2/1404 ,  B41J2002/14403 ,  B41J2002/14467

摘要： A liquid discharge head includes a plurality of discharge ports configured to discharge liquid, a supply port configured to retain the liquid to be discharged from the plurality of discharge ports, a first pressure chamber including a first energy generation element to discharge a predetermined amount of liquid droplets, a second pressure chamber including a second energy generation element to discharge an amount of liquid droplets greater than the predetermined amount, a first flow path through which the supply port and the first pressure chamber communicate with each other, and a second flow path through which the first pressure chamber and the second pressure chamber communicate with each other.

摘要翻译： 液体排出头包括多个排出液体的排出口，构成为保持从多个排出口排出的液体的供给口，具有第一能量产生元件的第一压力室，排出规定量的液体 液滴，包括第二能量产生元件的第二压力室，以排出大于预定量的液滴量;供给口和第一压力室相互连通的第一流路，以及通过 第一压力室和第二压力室彼此连通。

公开(公告)号：US08342645B2

公开(公告)日：2013-01-01

申请号：US12768924

申请日：2010-04-28

申请人： Keiji Tomizawa ,  Masaki Oikawa ,  Masayuki Kyoshima

发明人： Keiji Tomizawa ,  Masaki Oikawa ,  Masayuki Kyoshima

IPC分类号： B41J2/15

CPC分类号： B41J29/02 ,  B41J29/38

摘要： A printing apparatus prints on a printing medium by scanning a printhead having a plurality of nozzle arrays in a first direction and a second direction opposite to the first direction, and has a structure in which an air flow entering the nozzle array in the scan of the printhead in the first direction becomes larger than an air flow entering the nozzle array in the scan of the printhead in the second direction. The apparatus increases, in scanning in the second direction, discharge speed of ink discharged from at least one nozzle array arranged leeward in the scanning direction of the printhead from a predetermined position on the printhead in the scanning direction to be higher than or equal to the discharge speed of ink discharged from at least one nozzle array arranged windward in the scanning direction of the printhead from the predetermined position.

摘要翻译： 打印装置通过在与第一方向相反的第一方向和第二方向上扫描具有多个喷嘴阵列的打印头在打印介质上打印，并且具有这样的结构：在扫描中的喷嘴阵列中的空气流 打印头沿第一方向变得大于在第二方向扫描打印头时进入喷嘴阵列的气流。 该设备在扫描方向上从打印头的扫描方向上从打印头的扫描方向排列的至少一个喷嘴阵列排出的排墨速度从扫描方向上的打印头上的预定位置增加到高于或等于 从至少一个喷嘴阵列排出的墨水的排出速度从打印​​头的扫描方向从预定位置向上排列。

公开(公告)号：US08210655B2

公开(公告)日：2012-07-03

申请号：US12364217

申请日：2009-02-02

申请人： Chiaki Muraoka ,  Yukuo Yamaguchi ,  Mikiya Umeyama ,  Toru Yamane ,  Masaki Oikawa ,  Yuichiro Akama ,  Keiji Tomizawa ,  Tomotsugu Kuroda

发明人： Chiaki Muraoka ,  Yukuo Yamaguchi ,  Mikiya Umeyama ,  Toru Yamane ,  Masaki Oikawa ,  Yuichiro Akama ,  Keiji Tomizawa ,  Tomotsugu Kuroda

IPC分类号： B41J2/05 ,  B41J2/14

CPC分类号： B41J2/1404 ,  B41J2/1603 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1645 ,  B41J2002/14403 ,  B41J2002/14475

摘要： The present invention provides a liquid ejection head for which the peeling of an orifice plate from a substrate seldom occurs, even in a structure such that the walls that define each energy application chamber are narrowed toward an ejection port. The walls that define a first pressure chamber are inclined inward within the first pressure chamber, so that the first pressure chamber is narrowed, toward an ejection port, along a direction perpendicular to the heater formation face on which heaters are arranged. Further, the walls that define each ink flow path are inclined in the ink ejection direction. Furthermore, the angle at which the walls that define the ink flow path are inclined relative to the ink ejection direction is smaller than the angle at which the walls that define the first pressure chamber are inclined inward, within the first pressure chamber.

摘要翻译： 本发明提供了一种液体喷射头，即使在限定每个能量施加室的壁朝向喷射口变窄的结构中，也很少发生孔板从基板的剥离。 限定第一压力室的壁在第一压力室内向内倾斜，使得第一压力室沿着与加热器布置在其上的加热器形成面垂直的方向朝向喷射口变窄。 此外，限定每个油墨流动路径的壁在喷墨方向上倾斜。 此外，限定墨流路的壁相对于墨喷射方向倾斜的角度小于在第一压力室内限定第一压力室的壁向内倾斜的角度。

公开(公告)号：US20110074884A1

公开(公告)日：2011-03-31

申请号：US12892228

申请日：2010-09-28

申请人： Chiaki Muraoka ,  Yasushi Iijima ,  Tomotsugu Kuroda ,  Naoko Tsujiuchi ,  Mikiya Umeyama ,  Masaki Oikawa ,  Yuichiro Akama ,  Keiji Tomizawa

发明人： Chiaki Muraoka ,  Yasushi Iijima ,  Tomotsugu Kuroda ,  Naoko Tsujiuchi ,  Mikiya Umeyama ,  Masaki Oikawa ,  Yuichiro Akama ,  Keiji Tomizawa

IPC分类号： B41J2/14

CPC分类号： B41J2/15 ,  B41J2/14016 ,  B41J2/2125 ,  B41J2002/14475 ,  B41J2202/11

摘要： To provide an inkjet head which includes high-density nozzle rows and which does not easily cause an ejection failure due to adhesion of ink mist around ejection orifices when a high-density image of a secondary color is printed with a small number of paths. An inkjet head includes at least two or more types of nozzle rows that eject different amounts of ink. When A is the cross section, with respect to an ink supplying direction, of an ink supply path from each ejection orifice to a supply port and L is the length of the ink supply path, the value of A/L differs between the two or more types of nozzle rows. The nozzle row of which the value of A/L is small is disposed outside an area between the nozzle rows that eject a largest amount of ink and that are arranged next to each other.

摘要翻译： 提供一种喷墨头，其包括高密度喷嘴列，并且当以少数路径打印次高颜色的高密度图像时，由于喷墨口周围的墨雾粘附而不容易引起喷射故障。 喷墨头包括排出不同量的墨的至少两种或更多种类型的喷嘴列。 当A是相对于供墨方向的从每个喷射孔到供给口的供墨路径的横截面，L是供墨路径的长度时，A / L的值在两个或 更多类型的喷嘴行。 A / L值较小的喷嘴列配置在排出最大量的墨水并且彼此相邻布置的喷嘴列之间的区域的外侧。

公开(公告)号：US07695088B2

公开(公告)日：2010-04-13

申请号：US11953996

申请日：2007-12-11

申请人： Toru Yamane ,  Mineo Kaneko ,  Ken Tsuchii ,  Masaki Oikawa ,  Keiji Tomizawa ,  Mitsuhiro Matsumoto ,  Shuichi Ide ,  Kansui Takino

发明人： Toru Yamane ,  Mineo Kaneko ,  Ken Tsuchii ,  Masaki Oikawa ,  Keiji Tomizawa ,  Mitsuhiro Matsumoto ,  Shuichi Ide ,  Kansui Takino

IPC分类号： B41J29/38

CPC分类号： B41J29/02 ,  B41J2/1752

摘要： A scanning speed for a carriage and a number of multi-pass are set in accordance with print density information of dots obtained from image data. This makes it possible to preferably output an image free from the occurrence of an end deviation without reducing throughput to a required extent or more.

摘要翻译： 根据从图像数据获得的点的打印浓度信息来设置滑架的扫描速度和多次的数量。 这使得可以优选地输出没有终止偏差的图像的图像，而不会将吞吐量降低到所需的程度或更多。

公开(公告)号：US20090147056A1

公开(公告)日：2009-06-11

申请号：US12328404

申请日：2008-12-04

申请人： Masaki Oikawa ,  Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Tomotsugu Kuroda

发明人： Masaki Oikawa ,  Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Tomotsugu Kuroda

IPC分类号： B41J2/05

CPC分类号： B41J2/1404 ,  B41J2002/14185 ,  B41J2002/14403 ,  B41J2002/14475 ,  B41J2202/11

摘要： The landing precision of ink drops is improved to improve the image quality and increase the printing speed. An inkjet print head ejects ink supplied from an ink supply port from a plurality of ejection ports respectively connecting to ink paths having different flow resistances by using energy generated by a plurality of electrothermal transducer elements respectively corresponding to the plurality of the ejection ports, wherein each of the plurality of the ejection ports connected to the ink paths having a low ink flow resistance is arranged so that the center of each of the plurality of the ejection ports is positioned farther away from the ink supply port to the center of the corresponding electrothermal transducer element than each of the plurality of the ejection ports connected to the ink paths having a high ink flow resistance.

摘要翻译： 提高墨滴的着陆精度，提高图像质量，提高打印速度。 喷墨打印头通过使用分别对应于多个喷射口的多个电热换能器元件产生的能量，从分别连接到具有不同流动阻力的油墨通道的多个喷射口喷射从供墨口供给的墨水，其中， 连接到具有低油墨流动阻力的油墨通道的多个喷射口中的多个喷射口的中心布置成使得多个喷射口中的每个喷射口的中心位于远离供墨口至相应的电热换能器的中心 元件比连接到具有高油墨流动阻力的油墨通道的多个喷射口中的每个喷墨口。

公开(公告)号：US07527352B2

公开(公告)日：2009-05-05

申请号：US11589871

申请日：2006-10-31

申请人： Mineo Kaneko ,  Ken Tsuchii ,  Keiichiro Tsukuda ,  Masaki Oikawa ,  Kenji Yabe

发明人： Mineo Kaneko ,  Ken Tsuchii ,  Keiichiro Tsukuda ,  Masaki Oikawa ,  Kenji Yabe

IPC分类号： B41J2/135

CPC分类号： B41J2/14056 ,  B41J2/1404 ,  B41J2/1412 ,  B41J2/14129 ,  B41J2002/14177 ,  B41J2002/14185 ,  B41J2002/14387

摘要： An ink jet recording head is provided with one heat generating member in each of ink flow paths, and the discharge port thereof is arranged on the extended line extending in the normal direction from the center of the main surface of the heat generating member to the surface of the substrate. Then, on the surface of the substrate, non-bubbling area is provided on the center within the projected area having the discharge port projected thereon. Bubble brought to the boil by the heat generating member pushes out ink from the discharge port by the pressure exerted by the bubble, while being communicated with the outside. With the structure thus arranged, it is made possible to enhance the precision of discharge direction of the liquid droplet discharged from the discharge port.

摘要翻译： 喷墨记录头在每个墨流路中设置有一个发热元件，其排出口设置在从发热元件的主表面的中心向正方向延伸的延伸线上 的基底。 然后，在基板的表面上，在喷出口突出的投影区域的中央部设置非发泡区域。 通过发热部件沸腾的泡沫在与外部连通的同时，由气泡施加的压力从排出口推出墨水。 利用如此布置的结构，可以提高从排出口排出的液滴的排出方向的精度。

公开(公告)号：US20080239011A1

公开(公告)日：2008-10-02

申请号：US11866695

申请日：2007-10-03

申请人： Shuichi Ide ,  Mineo Kaneko ,  Ken Tsuchii ,  Toru Yamane ,  Masaki Oikawa ,  Keiji Tomizawa ,  Mitsuhiro Matsumoto ,  Kansui Takino ,  Naozumi Nabeshima

发明人： Shuichi Ide ,  Mineo Kaneko ,  Ken Tsuchii ,  Toru Yamane ,  Masaki Oikawa ,  Keiji Tomizawa ,  Mitsuhiro Matsumoto ,  Kansui Takino ,  Naozumi Nabeshima

IPC分类号： B41J2/05

CPC分类号： B41J2/1412 ,  B41J2/1404 ,  B41J2002/14177

摘要： A liquid recording head includes thermal energy generating means, having a flat plate configuration, for generating a bubble by thermal energy; a pressure chamber in which said thermal energy generating means is provided; a flow path for introducing liquid into said pressure chamber; a supply port in fluid communication with said flow path; and an ejection outlet provided at a position opposing said thermal energy generating means in fluid communication with said pressure chamber, wherein said thermal energy generating means includes a first major surface facing said ejection outlet and a second major surface opposite said first major surface, and wherein a distance between said first major surface and ceiling surface of said pressure chamber in which said ejection outlet is formed is shorter than a distance between said second major surface and a bottom surface of said pressure chamber.

摘要翻译： 液体记录头包括具有平板结构的用于通过热能产生气泡的热能产生装置; 设置有所述热能发生装置的压力室; 用于将液体引入所述压力室的流路; 与所述流路流体连通的供给口; 以及喷射出口，设置在与所述热能产生装置相对的位置处，与所述压力室流体连通，其中所述热能发生装置包括面向所述喷射出口的第一主表面和与所述第一主表面相对的第二主表面，并且其中 形成所述喷射出口的所述压力室的所述第一主表面和顶表面之间的距离短于所述第二主表面和所述压力室的底表面之间的距离。

公开(公告)号：US20080239007A1

公开(公告)日：2008-10-02

申请号：US12053701

申请日：2008-03-24

申请人： Keiji Tomizawa ,  Mineo Kaneko ,  Ken Tsuchii ,  Toru Yamane ,  Masaki Oikawa ,  Mitsuhiro Matsumoto ,  Naozumi Nabeshima ,  Shuichi Ide ,  Kansui Takino

发明人： Keiji Tomizawa ,  Mineo Kaneko ,  Ken Tsuchii ,  Toru Yamane ,  Masaki Oikawa ,  Mitsuhiro Matsumoto ,  Naozumi Nabeshima ,  Shuichi Ide ,  Kansui Takino

IPC分类号： B41J2/05

CPC分类号： B41J2/1404 ,  B41J2002/14387 ,  B41J2002/14403 ,  B41J2002/14475 ,  B41J2202/11

摘要： The present invention provides a print head that allows the characteristics of ejected ink to be adjusted for each ejection port in spite of a variation in the distance from an ink supply port to the heating element. In the print head according to the present invention, the area of the heating element decreases with increasing distance from the ink supply port and increases with decreasing distance from the ink supply port. The heating element is shaped like a rectangle that is longer in a direction orthogonal to a direction in which the plurality of ejection ports are arranged than in the direction in which the plurality of ejection ports are arranged. The aspect ratio of the heating element depends on the length of an ink channel through which ink is introduced into the bubbling chamber.

摘要翻译： 本发明提供了一种打印头，其允许对于每个喷射口调节喷墨的特性，尽管距离供墨口到加热元件的距离的变化。 在根据本发明的打印头中，加热元件的面积随着距离供墨口的距离的增加而减小，并且随着与供墨口的距离的减小而增加。 加热元件的形状类似矩形，其长度方向与排列多个喷射口的方向垂直的方向比排列多个喷射口的方向长。 加热元件的纵横比取决于油墨通过其进入鼓泡室的墨水通道的长度。

公开(公告)号：US20080225086A1

公开(公告)日：2008-09-18

申请号：US12103991

申请日：2008-04-16

申请人： Masaki Oikawa

发明人： Masaki Oikawa

IPC分类号： B41J2/04

CPC分类号： B41J2/1404 ,  B41J2/14056 ,  B41J2/14088 ,  B41J2002/14169 ,  B41J2002/14403

摘要： The present invention provides an ink jet recording head which, when a smaller liquid droplet is obtained, can suppress or reduce stagnation of liquid in a second discharge port portion, prevent an offset meniscus in a discharge port, reduce unstable satellite(s) and realize stable discharging with less image deterioration and less floating mist. In the present invention, two heaters 1a and 1b are provided for each bubble generating chamber and the heaters 1a and 1b are arranged substantially symmetrically with respect to a center or a center of gravity of a second discharge port portion. In a plan view viewed from a direction perpendicular to a main surface of an element substrate, at least one of two heaters is positioned to straddle an inner area of the second discharge port portion and an outer area out of the second discharge port portion.

摘要翻译： 本发明提供了一种喷墨记录头，当获得较小的液滴时，可以抑制或减少液体在第二排出口部分中的停滞，防止排出口中的偏移弯月面，减少不稳定的卫星并实现 稳定放电，图像劣化少，浮雾少。 在本发明中，为每个气泡发生室提供两个加热器1a和1b，并且加热器1a和1b相对于第二排出口部分的中心或重心基本上对称地布置。 在从垂直于元件基板的主表面的方向观察的平面图中，两个加热器中的至少一个被定位成跨越第二排出口部分的内部区域和第二排出口部分的外部区域。