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：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：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：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：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。

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：US5552816A

公开(公告)日：1996-09-03

申请号：US68142

申请日：1993-05-28

申请人： Kazuyuki Oda ,  Yoshihiko Fujimura ,  Jun Isozaki

发明人： Kazuyuki Oda ,  Yoshihiko Fujimura ,  Jun Isozaki

IPC分类号： B41J2/01 ,  B41J2/175

CPC分类号： B41J2/17513 ,  B41J2/17553

摘要： Ink-jet recording apparatus to reduce the change of the pressure of ink in the inside of ink discharge nozzles in an ink-jet recording apparatus as well as to improve the efficiency of use of ink. In the condition where an ink tank is used in an ink-jet recording apparatus, an ink joint provided in the lower end portion of the ink tank communicates with ink discharge nozzles of a head tip. Upon reception of air pressure from above, ink kept by a porous ink keeper stored in the inside of the ink tank is permitted to be supplied to the head tip. The ink tank is formed so that the internal volume of the ink tank increases in order from the lower portion to the upper portion. Accordingly, when the initial residual quantity of ink is relatively large, the change of the pressure (negative pressure) of ink in the inside of the head tip as caused by consumption of ink can be reduced. Further, when the residual quantity of ink is small, ink is collected into a small sectional area region in the lower portion of the ink tank. Accordingly, the finally residual quantity of ink can be reduced.

摘要翻译： 喷墨记录装置，用于减少喷墨记录装置中的喷墨嘴内部的油墨的压力变化，并提高油墨的使用效率。 在喷墨记录装置中使用墨水盒的情况下，设置在墨水罐的下端部的墨水接头与头部的喷墨嘴连通。 在从上方接收到空气压力时，允许储存在墨水罐内部的多孔墨水保持器保持的墨水供应到头部尖端。 墨水罐形成为使得墨盒的内部容积从下部到上部依次增加。 因此，当油墨的初始残留量相对较大时，可以减少由油墨消耗引起的头部内部的墨水的压力（负压）的变化。 此外，当墨水的剩余量小时，墨水被收集到墨水罐的下部的小截面积区域中。 因此，可以减少油墨的最终残留量。

公开(公告)号：US4841312A

公开(公告)日：1989-06-20

申请号：US126125

申请日：1987-11-27

申请人： Nanao Inoue ,  Koichi Saito ,  Ryoki Kato ,  Hiroshi Fujimagari ,  Yoshihiko Fujimura ,  Seiichi Kato ,  Koichi Naito ,  Kiyoshi Horie

发明人： Nanao Inoue ,  Koichi Saito ,  Ryoki Kato ,  Hiroshi Fujimagari ,  Yoshihiko Fujimura ,  Seiichi Kato ,  Koichi Naito ,  Kiyoshi Horie

IPC分类号： B41J2/05 ,  B41J2/06 ,  B41J2/14

CPC分类号： B41J2/14072 ,  B41J2/06 ,  B41J2/14129 ,  B41J2002/061 ,  B41J2002/14379

摘要： A thermal-electrostatic ink jet recording head is formed of two spaced-apart insulating substrates with an electrostatic field forming electrode and an array of electric heating elements in the slit between the substrates. The heating elements are paired and each of the adjacent heating elements of a pair joined by a common electrode, with each heater having an independent electrode connectable to a switching circuit for selectively heating portions of the ink under the influence of an electrostatic field to cause ink in the heated portions to be jetted. The common electrode preferably is U-shaped with each of its free ends connected to the inner ends of the adjacent electrodes of a pair.

摘要翻译： 热静电喷墨记录头由具有静电场形成电极的两个间隔开的绝缘基板和在基板之间的狭缝中的电加热元件阵列形成。 加热元件成对，并且每个相邻的加热元件由公共电极连接，每个加热器具有可连接到开关电路的独立电极，用于在静电场的影响下选择性地加热墨的部分以引起墨 在被喷射的加热部分中。 公共电极优选为U形，其每个自由端连接到一对的相邻电极的内端。

公开(公告)号：US4764777A

公开(公告)日：1988-08-16

申请号：US30161

申请日：1987-03-26

申请人： Koichi Saito ,  Yoshihiko Fujimura ,  Nanao Inoue

发明人： Koichi Saito ,  Yoshihiko Fujimura ,  Nanao Inoue

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/06 ,  B41J2/14 ,  G01D15/16

CPC分类号： B41J2/14016 ,  B41J2/06 ,  B41J2002/061 ,  B41J2002/14387

摘要： A non-impact ink jet image recording head for jetting a liquid coloring agent, such as ink, at a recording member (paper) wherein both electric and thermal energies are applied to ink contained in the image recording head; wherein heating elements are provided in a horizontal base and the ink is contained above the heating elements. Preferably, a pair of damlike members, with a discharge portion, contain the ink in a channel above the heating elements.

摘要翻译： 一种用于在记录构件（纸）上喷射液体着色剂如油墨的非冲击性喷墨图像记录头，其中电能和热能被施加到包含在图像记录头中的油墨; 其中加热元件设置在水平基座中，并且墨水被容纳在加热元件的上方。 优选地，具有排出部分的一对坝状构件在加热元件上方的通道中容纳墨水。

公开(公告)号：US06511160B1

公开(公告)日：2003-01-28

申请号：US08642869

申请日：1996-05-06

申请人： Naoki Morita ,  Jun Isozaki ,  Toshinobu Hamazaki ,  Masahiko Fujii ,  Yoshihiko Fujimura ,  Yukihisa Koizumi

发明人： Naoki Morita ,  Jun Isozaki ,  Toshinobu Hamazaki ,  Masahiko Fujii ,  Yoshihiko Fujimura ,  Yukihisa Koizumi

IPC分类号： B41J205

CPC分类号： B41J2/1404 ,  B41J2002/14379

摘要： A channel wafer has a plurality of nozzle flow channels and a common ink reservoir. Pits communicating with the ink reservoir from above heating elements are formed in a polyimide layer on a heater wafer. Each of the pits has a throttled portion in the rear of the heating element and the terminal of a nozzle flow channel is situated on the throttled portion so as to form the minimum sectional area portion of the flow channel. Stable ink discharge characteristics are attained by means of the flow channel resistance of the minimum sectional area portion and bubble pressure is prevented from being relieved toward the ink reservoir. The pressure propagated to the ink reservoir is made to attenuate internally, so that no crosstalk is produced.

摘要翻译： 通道晶片具有多个喷嘴流动通道和公共墨水储存器。 在加热器晶片上的聚酰亚胺层中形成有来自上述加热元件的与墨水储存器连通的凹坑。 每个凹坑在加热元件的后部具有节流部分，并且喷嘴流动通道的端子位于节流部分上，以便形成流动通道的最小截面积部分。 通过最小截面积部分的流路阻力来实现稳定的油墨排放特性，并且防止气泡压力朝向油墨储存器释放。 传播到储墨器的压力在内部衰减，使得不产生串扰。