公开(公告)号：US06649074B2

公开(公告)日：2003-11-18

申请号：US09835348

申请日：2001-04-17

申请人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

发明人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

IPC分类号： B41J216

CPC分类号： B41J2/1601 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/14137 ,  B41J2/1433 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/1437

摘要： A bubble-jet type ink jet printhead and manufacturing method thereof are provided. In the printhead, a manifold for supplying ink and a concave ink chamber is integrated with a substrate by being recessed from the same surface of the substrate, and a nozzle palate on the substrate in which a nozzle is formed and a round-shaped heater surrounding the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing procedure and facilitates high volume production. Furthermore, the round-shaped heater forms a doughnut-shaped bubble to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets which may degrade image resolution.

公开(公告)号：US06726308B2

公开(公告)日：2004-04-27

申请号：US09798954

申请日：2001-03-06

申请人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

发明人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

IPC分类号： B41J205

CPC分类号： B41J2/14072 ,  B41J2/14056 ,  B41J2/1412 ,  B41J2002/14177 ,  Y10T29/49083 ,  Y10T29/49155 ,  Y10T29/49156 ,  Y10T29/49165 ,  Y10T29/49401

摘要： A bubble-jet type ink-jet printhead is provided. The bubble-jet type ink-jet printhead includes a substrate, a plurality of chamber walls arranged parallel to one another on the substrate for dividing a chamber into a plurality unit chambers having a predetermined height, which are ink flow areas, a bubble generating means, provided for each unit chamber, which includes two unit heaters spaced apart by a predetermined distance on the substrate, and a nozzle plate, combined above the substrate, in which a plurality of nozzles are formed, each nozzle corresponding to a region between the two unit heaters of each bubble generating means. In this case, ink is supplied from both sides of the unit chamber. The ink-jet printhead is constructed such that a unit chamber is provided for each nozzle and bubbles are generated chamber on both sides of a nozzle within the unit chamber, thereby effectively preventing a back flow of ink while facilitating adjustment of the size of ink droplet ejected through the nozzle. Furthermore, the ink-jet printhead allows for high-speed and high-pressure ink ejection with relatively low pressure compared to a conventional printhead. In particular, an ink channel having a simple structure is provided, thereby avoiding the clogging of the ink channel due to foreign materials while effectively preventing defectiveness of the printhead.

摘要翻译： 提供了一种喷气式喷墨打印头。 气泡喷墨式喷墨打印头包括基板，在基板上彼此平行布置的多个室壁，用于将室分隔成具有预定高度的多个单元室，其是油墨流动区域，气泡发生装置 为每个单元室提供，其包括在基板上间隔预定距离的两个单元加热器和组合在基板上方的喷嘴板，其中形成有多个喷嘴，每个喷嘴对应于两个 每个气泡产生装置的单元加热器。 在这种情况下，墨水从单元室的两侧供应。 喷墨打印头的构造使得为每个喷嘴设置单元室，并且在单元室内的喷嘴的两侧上产生气泡，从而有效地防止墨回流，同时有助于调整墨滴的尺寸 通过喷嘴喷射。 此外，与常规打印头相比，喷墨打印头允许以相对低的压力进行高速和高压喷墨。 特别地，提供了具有简单结构的油墨通道，从而避免了由于异物而引起的油墨通道的堵塞，同时有效地防止了打印头的缺陷。

公开(公告)号：US07263773B2

公开(公告)日：2007-09-04

申请号：US10798577

申请日：2004-03-12

申请人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

发明人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

IPC分类号： B21D53/76 ,  B41J2/14 ,  G01D15/00

CPC分类号： B41J2/14072 ,  B41J2/14056 ,  B41J2/1412 ,  B41J2002/14177 ,  Y10T29/49083 ,  Y10T29/49155 ,  Y10T29/49156 ,  Y10T29/49165 ,  Y10T29/49401

摘要： A method of manufacturing a bubble-jet type ink jet printhead. The method includes forming resistive heater elements on a substrate, forming a patterned electrode layer on the resultant structure, forming an insulating layer over the resultant structure, forming barrier walls on the resultant structure and attaching a nozzle plate on the resultant structure. The method may further include etching a hole in the insulating layer, forming a second electrode layer over the etched insulating layer to contact the resistive heater elements and forming a second insulating layer thereon, where the barrier walls and then the nozzle plate are formed on top of the second insulating layer. The barrier walls group together resistive heater elements in pairs and form barriers between different pairs of resistive heater elements.

摘要翻译： 一种制造气泡喷墨型喷墨打印头的方法。 该方法包括在基板上形成电阻加热器元件，在所得结构上形成图案化电极层，在所得结构上形成绝缘层，在所得结构上形成阻挡壁，并在所得结构上安装喷嘴板。 该方法还可以包括蚀刻绝缘层中的孔，在蚀刻的绝缘层上形成第二电极层以接触电阻加热器元件并在其上形成第二绝缘层，其中阻挡壁然后喷嘴板形成在顶部 的第二绝缘层。 阻挡壁成对地将电阻加热器元件组合在一起，并在不同的电阻加热器元件对之间形成阻挡层。

公开(公告)号：US06926389B2

公开(公告)日：2005-08-09

申请号：US10663796

申请日：2003-09-17

申请人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

发明人： Chung-jeon Lee ,  Jae-ho Moon ,  O-keun Kwon

IPC分类号： B41J2/035 ,  B41J2/14 ,  B41J2/16 ,  B41J2/05

CPC分类号： B41J2/1601 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/14137 ,  B41J2/1433 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/1437

摘要： A bubble-jet type ink jet printhead and manufacturing method thereof are provided. In the printhead, a manifold for supplying ink and a concave ink chamber is integrated with a substrate by being recessed from the same surface of the substrate, and a nozzle palate on the substrate in which a nozzle is formed and a round-shaped heater surrounding the nozzle are integrated without a complex process such as bonding. Thus, this simplifies the manufacturing procedure and facilitates high volume production. Furthermore, the round-shaped heater forms a doughnut-shaped bubble to eject ink, thereby preventing a back flow of ink as well as formation of satellite droplets which may degrade image resolution.

摘要翻译： 提供了一种气泡喷墨式喷墨打印头及其制造方法。 在打印头中，用于供应墨水的歧管和凹入的墨水室通过从基板的相同表面凹陷而形成基板，并且在其上形成有喷嘴的基板上形成有喷嘴颚和围绕 喷嘴在没有诸如粘合的复杂工艺的情况下被集成。 因此，这简化了制造过程并且有助于大批量生产。 此外，圆形加热器形成环形气泡以喷射墨水，从而防止墨水的反向流动以及卫星墨滴的形成，这可能降低图像分辨率。

公开(公告)号：US06460961B2

公开(公告)日：2002-10-08

申请号：US09842184

申请日：2001-04-26

申请人： Chung-jeon Lee ,  Young-chul Kim ,  Jae-ho Moon ,  Oh-hyun Baek

发明人： Chung-jeon Lee ,  Young-chul Kim ,  Jae-ho Moon ,  Oh-hyun Baek

IPC分类号： B41J2205

CPC分类号： B41J2/1404 ,  B41J2/1412 ,  B41J2/14137 ,  B41J2002/1437

摘要： A heater of a bubble-jet type ink jet printhead enabling gray scale and manufacturing method thereof are provided. The heater includes two or more heating elements arranged concentrically around a nozzle. Each of the heating elements is formed in polygonal or annular shape and spaced apart by a different distance from the center of the nozzle. Each heating element is coupled to an electrode for applying heater drive power independently. Thus, the heater drive power is applied to each electrode selectively or in combination, thereby forming bubbles having different volumes.

摘要翻译： 提供了一种能够实现灰度的气泡喷墨式喷墨打印头的加热器及其制造方法。 加热器包括两个或更多个围绕喷嘴同心布置的加热元件。 每个加热元件形成为多边形或环形形状，并与喷嘴中心隔开不同的距离。 每个加热元件联接到用于独立施加加热器驱动功率的电极。 因此，加热器驱动功率被选择性地或组合地施加到每个电极，从而形成具有不同体积的气泡。

公开(公告)号：US06439691B1

公开(公告)日：2002-08-27

申请号：US09988701

申请日：2001-11-20

申请人： Chung-jeon Lee ,  Jae-ho Moon ,  Oh-hyun Baek

发明人： Chung-jeon Lee ,  Jae-ho Moon ,  Oh-hyun Baek

IPC分类号： B41J214

CPC分类号： B41J2/04516 ,  B41J2/0458 ,  B41J2/14056 ,  B41J2002/14177

摘要： A novel structure for a bubble-jet type ink-jet printhead is provided. A substrate is covered with a nozzle plate perforated by a predetermined number of nozzle holes a predetermined distance from said nozzle plate. The structure is surrounded by walls, within which form a common ink chamber. Each nozzle hole has, on the substrate underneath, a set of resistive elements. One of the resistive elements encircles an edge of a nozzle hole while another lyes directly underneath the perforation. During operation of the printhead, the encircling elements form a doughnut-shaped bubble forming an imaginary or virtual chamber within the doughnut from the rest of the common chamber. After formation of the doughnut-shaped bubble, the resister underneath the perforation forms a big bubble which causes ink to be ejected through the nozzle hole. The structure that allows for the above is easy to manufacture, and produces high quality print.

摘要翻译： 提供了一种用于气泡喷墨型喷墨打印头的新型结构。 基板被一个喷嘴板覆盖，该喷嘴板由预定数量的与所述喷嘴板预定距离的喷嘴孔穿孔。 结构被墙壁包围，形成一个普通的墨水室。 每个喷嘴孔在下面的基板上具有一组电阻元件。 电阻元件中的一个围绕喷嘴孔的边缘，而另一个直接在穿孔下面。 在打印头的操作期间，环绕元件形成环形气泡，在圆环中形成从公共室的其余部分的虚拟或虚拟室。 在形成环形泡沫之后，穿孔下方的电阻器形成大的气泡，这使得墨水通过喷嘴孔喷出。 允许上述的结构易于制造，并且产生高质量的印刷。

公开(公告)号：US06382776B1

公开(公告)日：2002-05-07

申请号：US09818668

申请日：2001-03-28

申请人： Chung-jeon Lee ,  Jae-ho Moon

发明人： Chung-jeon Lee ,  Jae-ho Moon

IPC分类号： B41J205

CPC分类号： B41J2/1404 ,  B41J2/1412 ,  B41J2/14137 ,  B41J2/14145 ,  B41J2002/1437

摘要： A bubble-jet type ink-jet printing head is provided. The ink-jet printing head includes a nozzle plate in which a plurality of nozzles, through which ink is ejected, are formed, a substrate for supporting the nozzle plate, on which a plurality of heaters having three-dimensionally concave surfaces oppose the plurality of nozzles, respectively, electrodes which are formed on the top surface of the substrate and electrically coupled to each heater so as to apply current to the heater, a plurality of ink chambers which are formed between the bottom of the nozzle plate and the surfaces of the corresponding heaters and filled with ink, and an ink feed channel, formed between the nozzle plate and the substrate so as to connect with the ink chambers, for supplying ink to the ink chambers. Each heater includes a hemispherical member and a flange disposed along the rim of the hemispherical member. The ink feed channel connects with the entire circumference of each ink chamber. Accordingly, expansion energy of a bubble formed on the surface of the heater is concentrated toward the nozzle thereby improving a energy efficiency, and a back flow of ink is prevented by the bubble formed on the flange of the heater. Furthermore, ink can quickly refills the ink chamber after ejection of an ink droplet, thereby further increasing the ejection driving frequency.

摘要翻译： 提供了一种气泡喷墨式喷墨打印头。 喷墨打印头包括喷嘴板，其中形成有多个喷嘴，通过其喷射油墨，用于支撑喷嘴板的基板，多个具有三维凹面的加热器与多个喷嘴板相对， 喷嘴分别形成在基板的顶表面上并电耦合到每个加热器以便向加热器施加电流的电极，形成在喷嘴板的底部和喷嘴板的表面之间的多个墨室 对应的加热器并填充有墨水，以及形成在喷嘴板和基板之间以与墨水室连接的供墨通道，用于向墨水室供应墨水。 每个加热器包括半球形构件和沿着半球形构件的边缘设置的凸缘。 供墨通道与每个墨水室的整个周边连接。 因此，形成在加热器表面上的气泡的膨胀能量朝向喷嘴集中，从而提高能量效率，并且通过形成在加热器的凸缘上的气泡来防止油墨的反向流动。 此外，在喷墨墨滴之后，墨水可以快速地重新填充墨水室，从而进一步提高喷射驱动频率。