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91. 发明专利

JP2002113858A METHOD FOR CONTROLLING LIQUID EJECTOR 失效
公开(公告)号：JP2002113858A
公开(公告)日：2002-04-16
申请号：JP2000307846
申请日：2000-10-06
申请人： SEIKO EPSON CORP
发明人： TANAKA RYOICHI , NISHIDA KEISUKE , HASEI HIRONOBU
IPC分类号： B41J2/045 , B41J2/055
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling a liquid ejector in which ink is prevented from being thickened or dried and the driving frequency can be enhanced. SOLUTION: In the method for controlling a liquid ejector comprising a pressure generating chamber 32 communicating with a nozzle opening 33 and having a Helmholtz oscillation frequency of period Tc, and a pressure generating means 38 for imparting a pressure to ink in the pressure generating chamber 32 and stirring ink in the vicinity of the nozzle opening 33 by driving the pressure generating means 38 of the liquid ejector ejecting ink drops thereby exciting a meniscus to perform microoscillation, a microoscillation driving process 61 is provided in order to stir ink in the vicinity of the nozzle opening by imparting a pressure to ink in the pressure generating chamber 32 without ejecting an ink drop from the nozzle opening 33 thereby exciting the meniscus to perform Helmholtz oscillation of period Tc. According to the arrangement, ink is prevented from being thickened or dried and high speed printing is realized by performing the microoscillation process in a short time.

92. 发明专利

JP2001219556A LIQUID EJECTOR 失效
公开(公告)号：JP2001219556A
公开(公告)日：2001-08-14
申请号：JP2000364937
申请日：2000-11-30
申请人： SEIKO EPSON CORP
发明人： TANAKA RYOICHI , TAKAHASHI TOMOAKI
IPC分类号： B41J2/045 , B41J2/055
摘要： PROBLEM TO BE SOLVED: To provide a liquid ejector which can eject a liquid drop more stably by effectively suppressing meniscus vibration at a nozzle opening corresponding to a pressure generating chamber not subjected to deformation driving. SOLUTION: A pressure generating chamber 3 has a Helmholtz resonance frequency of period TH. A drive signal has a first signal element for expanding the pressure generating chamber 3, a second signal element for contracting the pressure generating chamber 3 in an expanded state, and a third signal element for expanding the pressure generating chamber 3 up to a state prevailing before output of the first signal element after a liquid drop is ejected. The time elapsed after starting output of the first signal element before starting output of the second signal element, and the time elapsed after starting output of the second signal element before starting output of the third signal element are substantially equal to the period TH of Helmholtz resonance frequency. Furthermore, the sum of amplitude of the first and third signal elements is substantially equal to the amplitude of the second signal element.

93. 发明专利

JP2000218788A INK JET RECORDER 失效
公开(公告)号：JP2000218788A
公开(公告)日：2000-08-08
申请号：JP2330999
申请日：1999-01-29
申请人： SEIKO EPSON CORP
发明人： TANAKA RYOICHI , OKAZAWA NOBUAKI
IPC分类号： B41J2/165 , B41J2/045 , B41J2/055 , B41J2/16 , B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To provide an ink jet recording head capable of exactly exhausting bubbles in a through hole by specifying a radial length of the hole for constituting a part of a pressure generating chamber. SOLUTION: In an ink jet recording head obtained by laminating a nozzle plate 9, a pressure generating chamber 13, a channel plate 8 having an ink supply port 14 and a common ink chamber 15 sequentially formed, and a pressure plate 10 for pressurizing the chamber 13, a part of the generating chamber is constituted of a through hole 12 penetrating in a thickness direction of the plate, and a length 1 of the hole in a lengthwise direction of the generating chamber is set to twice or below as large as a width W of the generating chamber.

94. 发明专利

JP2000062164A INK JET RECORDING HEAD 失效
公开(公告)号：JP2000062164A
公开(公告)日：2000-02-29
申请号：JP23535698
申请日：1998-08-21
申请人： SEIKO EPSON CORP
发明人： TANAKA RYOICHI , KITAHARA TSUTOMU , OKAZAWA NOBUAKI , KIMURA KIMITOSHI , IIJIMA TAKAYUKI
IPC分类号： B41J2/045 , B41J2/055 , B41J2/14 , B41J2/175 , B41J2/19
摘要： PROBLEM TO BE SOLVED: To remove bubbles standing at the end part of a reservoir easily by providing the spacer of a channel unit with a reservoir having an end part tapered to have a width substantially equal to the depth of the reservoir. SOLUTION: Spacer of a channel unit forms two rows of pressure generating chambers 4 symmetrically to the center line at the pitch of one chamber, and a reservoir is formed independently on the outside of each row of pressure generating chambers 4. The regions 3a, 3b at respective ends of these reservoirs are tapered to have a width substantially equal to the depth of the reservoir by shifting the walls 3c, 3d facing ink supplies 2-1a, 2-2a, 2-3a and 2-1b, 2-2b, 2-3b, respectively, to the ink supplies 2-1a, 2-2b, 2-3b side from walls 3e, 3f extending from the central part.

95. 发明专利

JPH11277762A Ink-jet recording apparatus 失效
标题翻译：喷墨记录仪
公开(公告)号：JPH11277762A
公开(公告)日：1999-10-12
申请号：JP9853398
申请日：1998-03-26
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： TANAKA RYOICHI
IPC分类号： B41J2/175
摘要： PROBLEM TO BE SOLVED: To prevent the supply of ink during printing from being interrupted by air bubbles remaining at the upstream side of a filter member.
SOLUTION: An ink outflow opening 35 communicating with a head holder is arranged more outside than a spread part 42 of an ink feed needle 45. Recessed parts 46, 47 leading to the ink outflow opening 35 are formed from a position closer to the ink outflow opening 35 than a center line of the ink feed needle 45. A filter member 48 is stretched to separate the recessed parts 46, 47. A bottom part B1 of an air bubble B growing large at an effective area of the filter member 48 is prevented from being in touch with the recessed parts 46, 47.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：为了防止在打印期间的墨水供应被残留在过滤器部件的上游侧的气泡中断。解决方案：与头保持器连通的墨水流出口35布置在比供墨针45的扩展部分42更外侧。通向墨水流出口35的凹入部分46,47由更接近墨水流出的位置形成开口35比墨水供给针45的中心线。过滤构件48被拉伸以分离凹部46,47。防止在过滤构件48的有效区域生长大的气泡B的底部B1 与凹部46,47接触。

96. 发明专利

JPH1178067A INK-JET TYPE RECORDING APPARATUS 失效
公开(公告)号：JPH1178067A
公开(公告)日：1999-03-23
申请号：JP25603897
申请日：1997-09-04
申请人： SEIKO EPSON CORP
发明人： TANAKA RYOICHI
IPC分类号： B41J2/165 , B41J2/18 , B41J2/185
摘要： PROBLEM TO BE SOLVED: To make a pressure wave surely act on air bubbles in a recording head thereby freeing the air bubbles from a wall face. SOLUTION: When no ink flow is present, a pressure wave P by a piezoelectric vibrator 30 is transmitted up to a thin passage such as an ink feed opening 32 constituting a recording head 7, etc., thereby freeing air bubbles B staying at the point from a wall face. When an ink flow is generated in the recording head 7 in this state, the air bubbles B are carried on the ink flow and easily discharged from a nozzle opening 33.

97. 发明专利

JP2019093573A カートリッジ、および、液体噴射システム审中-公开
公开(公告)号：JP2019093573A
公开(公告)日：2019-06-20
申请号：JP2017222576
申请日：2017-11-20
申请人： SEIKO EPSON CORP
发明人： FUKAZAWA NORIYUKI , MIZUTANI TADAHIRO , TANAKA RYOICHI , SHINADA SATOSHI
IPC分类号： B41J2/175 , B41J2/01
摘要：【課題】液体収容部が大気と連通しない可能性を低減できる技術を提供する。【解決手段】カートリッジは、底面を有する筐体と、筐体の内部に設けられた複数の液体収容部と、底面に設けられた複数の凹部と、を備え、複数の凹部は、複数の液体収容部のそれぞれに対応して設けられ、複数の液体収容部のそれぞれと大気とを連通させる複数の第1凹部と、複数の液体収容部と連通しておらず、カートリッジが液体噴射装置に装着された装着状態のときに、液体噴射装置に設けられた衝突突起を受け入れる少なくとも1つの第2凹部と、を有し、底面には、複数の凹部を覆うシール部材が取り付けられている。【選択図】図6

98. 发明专利

JP2015047830A 液体収容容器审中-公开
标题翻译：液体储存容器
公开(公告)号：JP2015047830A
公开(公告)日：2015-03-16
申请号：JP2013182846
申请日：2013-09-04
申请人：セイコーエプソン株式会社 , Seiko Epson Corp
发明人： ONO ATSUSHI , TANAKA RYOICHI , YAMAZAKI TOSHINOBU , NAKAGAWA SHIGENORI , IWAMURO TAKESHI , NAITO NAOKI
IPC分类号： B41J2/175
CPC分类号： B41J2/00 , B41J2/175 , B41J2/17513 , B41J2/1752 , B41J2/17523 , B41J2/1753 , B41J2/17553 , B41J2/17563
摘要：【課題】注入口からインクを注入すると、インクの注入に伴って液体収容容器に気泡が入り込むことがあり、入り込んだ気泡が液体収容容器の流路に設けられたフィルターにとどまることによるインク供給に及ぼす悪影響を抑えることができる液体収容容器の提供。【解決手段】液体を収容可能な液体収容容器であって、液体収容容器に形成されて液体が流れる流路と、流路の途中に設けられたフィルター166と、を有し、フィルター166は、水平方向に対して一方向に傾斜している。【選択図】図30
摘要翻译：要解决的问题：提供一种液体储存容器，其能够抑制由设置在液体储存容器的通道上的过滤器上残留的气泡引起的对供墨的有害影响，因为当从入口喷射墨水时，跟随墨水注射，气泡可能进入液体储存容器。解决方案：能够储存液体的储液容器包括：形成在液体储存容器上并在其中液体流动的通道; 以及设置在通道的中途的过滤器166。过滤器166相对于水平方向倾斜到一个方向。

99. 发明专利

JP2014166710A Liquid holding container 有权
标题翻译：液体容器
公开(公告)号：JP2014166710A
公开(公告)日：2014-09-11
申请号：JP2013039321
申请日：2013-02-28
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YAMAGISHI TAKESHI , YAMAZAKI TOSHINOBU , IWAMURO TAKESHI , NAKAGAWA SHIGENORI , TANAKA RYOICHI
IPC分类号： B41J2/175
CPC分类号： B41J2/17563 , B41J2/17513
摘要： PROBLEM TO BE SOLVED: To provide a liquid holding container that can reduce the risk that air will be trapped in a filter provided in a flow path.SOLUTION: A liquid holding container includes a second ink chamber 152 for accommodating ink, a first coupling flow path section 164a communicated with the second ink chamber 152 via through holes 162a, 238, and a filter 166 provided in the first coupling flow path section 164a. The through holes 162a, 238 are each communicated with the first coupling flow path section 164a.
摘要翻译：要解决的问题：提供一种液体保持容器，其可以降低空气将被捕获在设置在流路中的过滤器的风险。解决方案：液体保持容器包括用于容纳墨水的第二墨水室152，第一耦合流通路部分164a经由通孔162a，238与第二墨水室152连通，以及设置在第一联接流路部分164a中的过滤器166。通孔162a，238分别与第一联接流路部164a连通。

100. 发明专利

JP2014014934A Printing apparatus, printing method and controller of printing apparatus 有权
标题翻译：印刷装置，印刷方法和印刷装置控制器
公开(公告)号：JP2014014934A
公开(公告)日：2014-01-30
申请号：JP2012152062
申请日：2012-07-06
申请人： Seiko Epson Corp , セイコーエプソン株式会社
发明人： YAMADA SHINICHI , HAYASHI HIROTERU , TANAKA RYOICHI , TAMURA NOBORU , SATO AKIHITO , ISHIMOTO BUNJI
IPC分类号： B41J2/01
摘要： PROBLEM TO BE SOLVED: To suppress an occurrence of a situation that a printing operation stops before completing an image formation on a medium regardless of a content of an image to be printed or a size of a printing medium.SOLUTION: A control unit of a printing apparatus controls a carriage to perform at least a first dot forming operation which forms first dots, an adjustment operation which does not include dot forming, and a second dot forming operation which forms second dots on a printing medium sequentially. When an image in which RGB values of each pixel are (0,0,0) is printed, a lowest-brightness region of the area in which the first dots are formed and a lowest-brightness region of the area in which the second dots are formed overlap in a first direction of main-scanning, and do not overlap in a direction of sub-scanning.
摘要翻译：要解决的问题：无论打印图像的内容或打印介质的尺寸如何，都可以抑制在完成介质上的图像形成之前打印操作停止的情况。解决方案：打印装置控制滑架以进行形成第一点的至少第一点形成操作，不包括点形成的调整操作和在打印介质上顺序形成第二点的第二点形成操作。当打印出每个像素的RGB值为（0,0,0）的图像时，形成第一点的区域的最低亮度区域和其中第二点的最低亮度区域在主扫描的第一方向上形成重叠，并且在副扫描方向上不重叠。

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