公开(公告)号：US5821965A

公开(公告)日：1998-10-13

申请号：US601522

申请日：1996-02-14

申请人： Kazuyuki Oda ,  Katsuyuki Fujii ,  Junichi Yoshida ,  Katsuhide Ogawa ,  Ichiro Tomikawa ,  Jun Takagi ,  Yoshihiko Fujimura

发明人： Kazuyuki Oda ,  Katsuyuki Fujii ,  Junichi Yoshida ,  Katsuhide Ogawa ,  Ichiro Tomikawa ,  Jun Takagi ,  Yoshihiko Fujimura

IPC分类号： B41J2/175

CPC分类号： B41J2/17513 ,  B41J2/17556 ,  B41J2/17559

摘要： Considering the differential pressure .DELTA.P between pressures applied to both faces of a meniscus formation member, the differential pressure .DELTA.P becomes the maximum when an ink supply unit is left standing with the meniscus formation member placed upward. At this time, water head PH of ink attempting to fall due to gravity is applied to the inner face of the meniscus formation member in the same direction as negative pressure PR of a capillary member. Thus, the differential pressure .DELTA.P becomes .DELTA.P=PR+PH. The bubble point pressure PB of the meniscus formation member is set greater than the maximum value of the differential pressure, .DELTA.P=PR+PH, whereby air does not enter an ink tank through the meniscus formation member.

摘要翻译： 考虑到施加到弯液面形成构件的两个面上的压力之间的压差DELTA P，当向上放置弯液面形成构件而使供墨单元立起时，压差DELTA P变为最大值。 此时，试图由于重力而下降的油墨的水头PH以与毛细管构件的负压PR相同的方向施加到弯液面形成构件的内表面。 因此，压差DELTA P变为DELTA P = PR + PH。 弯液面形成构件的泡点压力PB被设定为大于压差的最大值DELTA P = PR + PH，由此空气不会通过弯液面形成构件进入墨罐。

公开(公告)号：US5886721A

公开(公告)日：1999-03-23

申请号：US517588

申请日：1995-08-22

申请人： Katsuyuki Fujii ,  Kazuyuki Oda ,  Junichi Yoshida ,  Katsuhide Ogawa ,  Ichiro Tomikawa ,  Jun Takagi ,  Yoshihiko Fujimura ,  Mituhide Soga

发明人： Katsuyuki Fujii ,  Kazuyuki Oda ,  Junichi Yoshida ,  Katsuhide Ogawa ,  Ichiro Tomikawa ,  Jun Takagi ,  Yoshihiko Fujimura ,  Mituhide Soga

IPC分类号： B41J2/175

CPC分类号： B41J2/17553 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17566

摘要： A main ink chamber with a through-hole contains a capillary member. An intermediate ink chamber is provided on the side wall of the main ink chamber. A path communicatively interconnects the main ink chamber and the intermediate ink chamber. A second meniscus forming member is disposed in a joint port, to thereby prevent ink leakage. In a print mode, ink flows from the main ink chamber to the joint port, through a meniscus forming member that is disposed in the through-hole. Air bubbles mingled into the ink move along the slanting upper wall of the path by their buoyant force, and are accumulatively stored in the upper part of the intermediate ink chamber. When ink is reduced to zero in the main ink chamber, air bubbles are introduced into the intermediate ink chamber through the meniscus forming member. As a result, the liquid level of the intermediate ink chamber is quickly reduced, thereby indicating a state that ink is used up.

摘要翻译： 具有通孔的主墨室包含毛细管构件。 中间墨水室设置在主墨水室的侧壁上。 通路连通主墨室和中间墨室。 第二弯液面形成构件设置在接合口中，从而防止油墨泄漏。 在打印模式中，油墨通过设置在通孔中的弯液面形成部件从主油墨室流向接头端口。 混入墨水的气泡通过其浮力沿着倾斜的路径上壁移动，并且累积储存在中间墨水室的上部。 当墨水在主墨水室中减少为零时，气泡通过弯液面形成构件被引入中间墨水室。 结果，中间墨水室的液位迅速降低，从而表示墨水被用尽的状态。

公开(公告)号：US5969738A

公开(公告)日：1999-10-19

申请号：US774321

申请日：1996-12-24

申请人： Ichiro Tomikawa ,  Jun Takagi ,  Junichi Yoshida ,  Mitsuhide Soga ,  Fumihiko Ogasawara ,  Harumi Tamura ,  Yoshihiko Fujimura ,  Katsuhide Ogawa

发明人： Ichiro Tomikawa ,  Jun Takagi ,  Junichi Yoshida ,  Mitsuhide Soga ,  Fumihiko Ogasawara ,  Harumi Tamura ,  Yoshihiko Fujimura ,  Katsuhide Ogawa

IPC分类号： B41J2/175

CPC分类号： B41J2/17523 ,  B41J2/17513

摘要： An ink supply passage 16 has a large cross-sectional area and ink tanks 6 are connected to the top of the ink supply passage 16. An ink supply passage 17 is a flow passage shaped like a semicylinder and has a cross-sectional area equal to or smaller than the cross-sectional area of the ink supply passage 16. Even if bubbles are mixed into the ink supply passage 17, they adhere to the upper portion of the flow passage 17 and do not flow into lower corners, so that a flow passage can be provided and the ink flow is not hindered. Since an ink supply passage 19 connected to a head chip 4 has a small diameter, bubbles mixed into the ink supply passage 19 can be removed by maintenance for sucking ink forcibly. Bubbles mixed upstream are not transported to the ink supply passage 19 because of the flow rate difference caused by the cross-sectional area difference.

摘要翻译： 供墨通道16具有大的横截面积，并且墨水罐6连接到供墨通道16的顶部。供墨通道17是形状类似于半圆柱形的流动通道，其横截面积等于 或小于供墨通道16的横截面积。即使气泡混入供墨通道17中，它们粘附到流动通道17的上部并且不流入下角，使得流动 可以提供通道并且墨流不受阻碍。 由于连接到头部芯片4的墨水供应通道19具有小的直径，所以通过维护来强制吸入墨水可以去除与供墨通道19混合的气泡。 由于由横截面积差引起的流量差，上游混合的气泡不会输送到供墨通道19。

公开(公告)号：US6082852A

公开(公告)日：2000-07-04

申请号：US837796

申请日：1997-04-22

申请人： Mitsuhide Soga ,  Jun Takagi ,  Katsuyuki Fujii ,  Ichiro Tomikawa ,  Kazuyuki Oda ,  Fumihiko Ogasawara ,  Junichi Yoshida

发明人： Mitsuhide Soga ,  Jun Takagi ,  Katsuyuki Fujii ,  Ichiro Tomikawa ,  Kazuyuki Oda ,  Fumihiko Ogasawara ,  Junichi Yoshida

IPC分类号： B41J2/175

CPC分类号： B41J2/17553 ,  B41J2/17513 ,  B41J2/1752

摘要： A recording apparatus having a print head for printing characters on a medium and an ink tank for holding ink to be supplied to the print head. The ink tank includes an ink chamber having an ink holding member and an ink supplying port. A first meniscus forming member is located in the ink supplying port so as to be in communication with the ink holding member. The print head includes an ink introducing port for receiving ink from the ink tank and a second meniscus forming member located in the ink introducing port. When the ink tank is attached to the print head, the ink introducing port is coupled with the ink supplying port. An ink passing member is located in the portion where the ink introducing port is coupled with the ink supplying port. The ends of the ink passing member are in contact with the first meniscus forming member and the second meniscus forming member. The ink passing member is subject to only minor changes in volume upon contact with ink.

摘要翻译： 一种具有用于在介质上打印字符的打印头和用于保持要供应到打印头的墨水的墨盒的记录装置。 墨水盒包括具有墨水保持部件和墨水供给口的墨水室。 第一弯液面形成构件位于供墨口中，以与油墨保持构件连通。 打印头包括用于从墨水罐接收墨水的墨水引入口和位于墨水引入口中的第二弯液面形成构件。 当墨水盒附接到打印头时，墨水引入口与供墨口连接。 油墨通过部件位于墨水引入口与供墨口连接的部分中。 油墨通过部件的端部与第一弯液面形成部件和第二弯液面形成部件接触。 油墨通过部件在与油墨接触时只能稍微改变体积。

公开(公告)号：US6070976A

公开(公告)日：2000-06-06

申请号：US923005

申请日：1997-09-16

申请人： Jun Takagi ,  Katsuhide Ogawa ,  Katsuyuki Fujii ,  Kazuyuki Oda ,  Junichi Yoshida ,  Koji Suenaga

发明人： Jun Takagi ,  Katsuhide Ogawa ,  Katsuyuki Fujii ,  Kazuyuki Oda ,  Junichi Yoshida ,  Koji Suenaga

IPC分类号： B41J2/175

CPC分类号： B41J2/17553 ,  B41J2/17513 ,  B41J2/1752

摘要： In an ink tank, there are provided a main ink chamber containing a capillary vessel member, and an intermediate ink chamber. When the ink is consumed, the ink held by capillary force of a capillary vessel member is supplied via a communication port from a joint port. The same amount of air as the amount of the consumed ink is conducted from the atmospheric communication port into the main ink chamber. The conducted air is supplied via a groove formed in a lid to an upper surface of the capillary vessel member. As a result, the air is entered into the capillary vessel member under better condition. In a plane portion of the lid, the ink is in contact with only the capillary vessel member, and the ink remaining this portion is reduced. Thus, the ink using efficiency is increased.

摘要翻译： 在墨罐中，设置有包含毛细血管构件和中间墨室的主墨室。 当墨水消耗时，通过毛细血管构件的毛细管力保持的墨水通过连接口从联合口提供。 与从大气连通口进入主墨水室的消耗墨水的量相同的空气量。 导入的空气通过形成在盖中的槽供给到毛细管构件的上表面。 结果，空气在更好的条件下进入毛细血管构件。 在盖子的平面部分中，油墨只与毛细血管构件接触，并且剩余的部分油墨减少。 因此，墨水使用效率提高。

公开(公告)号：US5984460A

公开(公告)日：1999-11-16

申请号：US628884

申请日：1996-04-05

申请人： Jun Takagi ,  Katsuhide Ogawa ,  Katsuyuki Fujii ,  Kazuyuki Oda ,  Junichi Yoshida

发明人： Jun Takagi ,  Katsuhide Ogawa ,  Katsuyuki Fujii ,  Kazuyuki Oda ,  Junichi Yoshida

IPC分类号： B41J2/175

CPC分类号： B41J2/17513 ,  B41J2/17523

摘要： In an ink tank, there are provided a main ink chamber containing a capillary vessel member, and an intermediate ink chamber. When the ink is consumed, the ink held by capillary force of a capillary vessel member is supplied via a communication port from a joint port. The same amount of air as the amount of the consumed ink is conducted from the atmospheric communication port into the main ink chamber. The conducted ink is supplied via a groove formed in a lid to an upper surface of the capillary vessel member. As a result, the air is entered into the capillary vessel member under better condition. In a plane portion of the lid, the ink is in contact with only the capillary vessel member, and the ink remaining this portion is reduced. Thus, the ink using efficiency is increased.

摘要翻译： 在墨罐中，设置有包含毛细血管构件和中间墨室的主墨室。 当墨水消耗时，通过毛细血管构件的毛细管力保持的墨水通过连接口从联合口提供。 与从大气连通口进入主墨水室的消耗墨水的量相同的空气量。 导入的墨水通过形成在盖中的凹槽供给到毛细管构件的上表面。 结果，空气在更好的条件下进入毛细血管构件。 在盖子的平面部分中，油墨只与毛细血管构件接触，并且剩余的部分油墨减少。 因此，墨水使用效率提高。

公开(公告)号：US5975681A

公开(公告)日：1999-11-02

申请号：US802108

申请日：1997-02-19

申请人： Fumihiko Ogasawara ,  Toshinobu Hamazaki ,  Masaki Kataoka ,  Ichiro Tomikawa ,  Naoki Morita ,  Katsuhide Ogawa ,  Mitsuhide Soga ,  Kouji Ikegami ,  Jun Isozaki ,  Harumi Tamura ,  Jun Takagi ,  Yoshihiko Fujimura

发明人： Fumihiko Ogasawara ,  Toshinobu Hamazaki ,  Masaki Kataoka ,  Ichiro Tomikawa ,  Naoki Morita ,  Katsuhide Ogawa ,  Mitsuhide Soga ,  Kouji Ikegami ,  Jun Isozaki ,  Harumi Tamura ,  Jun Takagi ,  Yoshihiko Fujimura

IPC分类号： B41J2/175 ,  B41J2/05 ,  B41J2/14 ,  B41J2/19

CPC分类号： B41J2/14145 ,  B41J2002/14379 ,  B41J2202/11

摘要： An ink jet printer which causes ink to fly to a recording medium to form an image, comprising: plural nozzles functioning as ink ejection ports; plural individual flow paths which are disposed with respectively corresponding to the nozzles, the individual flow paths respectively having driving elements which eject internal ink through the nozzles; a common liquid chamber which communicates with the individual flow paths, the common liquid chamber having an opening portion through which ink is supplied into the chamber; an ink supply path which has a sectional area smaller than a sectional area of the opening portion of the common liquid chamber, the ink supply path being connected to the opening portion to guide ink to the common liquid chamber; and an ink supply source for supplying ink through the ink supply path.

摘要翻译： 一种喷墨打印机，其使油墨飞入记录介质以形成图像，包括：多个用作喷墨口的喷嘴; 多个单独的流动路径分别对应于喷嘴设置，各个流路分别具有通过喷嘴喷射内部油墨的驱动元件; 公共液体室与各个流路连通，公共液体室具有开口部分，通过该开口部分将油墨供应到室中; 墨水供给路径，其截面积小于公共液体室的开口部的截面积，墨水供给路径与开口部连接，将墨水引导到公共液体室; 以及用于通过供墨路径供墨的供墨源。

公开(公告)号：US6033063A

公开(公告)日：2000-03-07

申请号：US543914

申请日：1995-10-17

申请人： Ichiro Tomikawa ,  Jun Takagi ,  Junichi Yoshida ,  Katsuyuki Fujii

发明人： Ichiro Tomikawa ,  Jun Takagi ,  Junichi Yoshida ,  Katsuyuki Fujii

IPC分类号： B41J2/175

CPC分类号： B41J2/17523 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17563

摘要： An ink printer designed to make users free from any danger when an inktank is replaced and to prevent ink from leaking out when the inktank is detached. The joint part of an inktank is pressed against the ink guide of a print head to couple the inktank and the print head together, so that ink is supplied from the inktank to the print head. The joint part is supplied with a porous material. When the inktank is attached, the porous material is compressed and contained in the joint part. When the inktank is detached from the print head, the volume of the porous material increases thereby raising its porosity. The ink remaining in the joint part is absorbed by the porous material whose porosity has been raised, so that ink is prevented from flowing out in the vicinity of the joint part when the inktank is removed.

摘要翻译： 一种墨水打印机，旨在使用户在更换墨水时不会有任何危险，并防止墨水分离时墨水泄漏。 墨槽的接合部分被压靠在打印头的墨水引导件上，以将墨槽和打印头连接在一起，使得墨水从墨水池供应到打印头。 接头部分配有多孔材料。 当安装墨槽时，多孔材料被压缩并包含在接合部分中。 当墨水从打印头分离时，多孔材料的体积增加，从而提高其孔隙率。 残留在接合部分中的油墨被孔隙率升高的多孔材料吸收，从而防止墨水在去除墨水时在接合部分附近流出。

公开(公告)号：US6000790A

公开(公告)日：1999-12-14

申请号：US291554

申请日：1994-08-16

申请人： Jun Takagi ,  Junichi Yoshida ,  Kazuyuki Oda ,  Yoshihiko Fujimura

发明人： Jun Takagi ,  Junichi Yoshida ,  Kazuyuki Oda ,  Yoshihiko Fujimura

IPC分类号： B41J2/175

CPC分类号： B41J2/17513

摘要： In an ink tank, a main ink chamber is contiguous to a sub ink chamber containing an absorption member, and an air communication hole is formed on the top of the sub ink chamber. The absorption member holds ink pressure constant by capillary attraction of the absorption member. First, ink in the sub ink chamber is consumed with consumption of ink. When ink is consumed in a predetermined amount, air passes through the absorption member and a meniscus forming portion to form bubbles, which then move to the main ink chamber. Ink pressure is held constant by surface tension of the meniscus forming portion. Even if ink remains in a small amount, the ink leading portion makes the meniscus forming portion wet for holding ink pressure.

摘要翻译： 在墨水盒中，主墨水室邻近含有吸收部件的副墨水室，并且在副墨水室的顶部形成空气连通孔。 吸收构件通过吸收构件的毛细吸引保持墨压力恒定。 首先，副油墨室中的油墨消耗墨水。 当油墨以预定量消耗时，空气通过吸收构件和弯液面形成部分，以形成气泡，然后气泡移动到主油墨室。 油墨压力通过弯液面形成部分的表面张力保持恒定。 即使油墨保持少量，墨水引导部分使得弯液面形成部分变湿以保持油墨压力。

公开(公告)号：US5760806A

公开(公告)日：1998-06-02

申请号：US887263

申请日：1997-07-02

申请人： Kazuyuki Oda ,  Junichi Yoshida ,  Jun Takagi ,  Yoshihiko Fujimura

发明人： Kazuyuki Oda ,  Junichi Yoshida ,  Jun Takagi ,  Yoshihiko Fujimura

IPC分类号： B41J2/175

CPC分类号： B41J2/17513 ,  B41J2/17556

摘要： An ink supply device for use in an ink jet printer comprising a main ink chamber in communication through a communication hole with a sub-ink chamber containing an ink absorbing member therein. A meniscus film forming member covering the communication hole and communicating the main ink chamber with the sub-ink chamber; the member having a first surface facing the interior of the main ink chamber and an opposite second surface. An ink guide member extending into a lower portion of the main chamber and also being in contact with the first surface of the film forming member, wherein as ink in the main ink chamber is consumed a differential pressure between the first and second surfaces of the film forming member causes a gradual expansion of a liquid meniscus film into an air bubble on the film forming member to maintain a constant negative pressure in the main ink chamber.

摘要翻译： 一种用于喷墨打印机的供墨装置，包括通过连通孔连通的主墨室，其中含有墨吸收件的副墨室。 覆盖所述连通孔并将所述主墨水室与所述副墨水室连通的弯月形成膜构件; 所述构件具有面向主墨水室的内部的第一表面和相对的第二表面。 一种墨水引导构件，其延伸到主室的下部并且还与成膜构件的第一表面接触，其中当主墨室中的墨水被消耗时，膜的第一和第二表面之间的压差 成形构件使液体弯月面膜逐渐膨胀到成膜构件上的气泡中，以在主油墨室中保持恒定的负压。