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：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：US6042224A

公开(公告)日：2000-03-28

申请号：US977805

申请日：1997-11-25

申请人： Kazuyuki Oda ,  Harumi Tamura ,  Katsuyuki Fujii ,  Ichiro Tomikawa

发明人： Kazuyuki Oda ,  Harumi Tamura ,  Katsuyuki Fujii ,  Ichiro Tomikawa

IPC分类号： B41J2/175

CPC分类号： B41J2/17523 ,  B41J2/17563

摘要： An ink tank 1 includes a main ink chamber 11 and a intermediate chamber 16. A second meniscus forming member 17 is provided in a joint portion 2 to be coupled with a printhead 3. A filter 22 is provided in an ink introducing portion 4 of the printhead 3, which is to be coupled with the ink tank 1. The open-space diameter of the second meniscus forming member 17 is selected to be equal to that of the filter 22. With such a construction, the number of foreign materials flowing from the ink tank 1 to the filter 22 is reduced. The result is to reduce a frequency of occurrence of the filter clogging and to elongate a normally operable time of the printer. A fluid resistance in the ink passage ranging from the filter 22 to the nozzle is high. Therefore, air that is left in the jointing portion flows through the second meniscus forming member 17 into the intermediate chamber 16 of the ink tank 1. Therefore, there is eliminated such an unwanted situation that air bubbles enter the printhead and given rise to defects in a printed picture.

摘要翻译： 墨盒1包括主墨室11和中间室16.第二弯液面形成构件17设置在接头部分2中以与打印头3联接。过滤器22设置在墨水引入部分4中 打印头3，其将与墨水罐1联接。第二弯月形成部件17的开口空间直径被选择为等于过滤器22的开口空间直径。通过这种结构，从 墨盒1到过滤器22被减小。 结果是减少过滤器堵塞的频率并延长打印机的正常可操作时间。 从过滤器22到喷嘴的油墨通路中的流体阻力高。 因此，留在接合部的空气通过第二弯液面形成部件17流入墨罐1的中间室16.因此，消除了气泡进入打印头的不良情况，并引起缺陷 打印图片。

公开(公告)号：US06588874B2

公开(公告)日：2003-07-08

申请号：US09909825

申请日：2001-07-23

申请人： Takatoshi Tsuchiya ,  Atsumichi Imazeki ,  Harumi Tamura

发明人： Takatoshi Tsuchiya ,  Atsumichi Imazeki ,  Harumi Tamura

IPC分类号： B41J2165

CPC分类号： B41J2/16505

摘要： An airtight elastic cap of an ink-jet recording head and a storage container employing the airtight elastic cap provide high airtightness between a nozzle face and the airtight cap and minimizes ink leak from the recording head even when the head is mounted or dismounted, or when a storage environment changes suddenly. The airtight elastic cap includes a body and an inside wall provided inside thereof. A portion of the wall defines a first space and another portion defines a second space positioned continuously to a center of the first space. The storage container includes a container body that houses the ink-jet recording head and the airtight elastic cap, placed within the container body, that abuts against and protects an ink emission face of the ink-jet recording head while the ink-jet recording is housed.