公开(公告)号：US20110063381A1

公开(公告)日：2011-03-17

申请号：US12952494

申请日：2010-11-23

申请人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

发明人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

IPC分类号： B41J2/175

CPC分类号： B41J2/175 ,  B41J2/17596

摘要： An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that communicates with the ink jet head via the upstream port and is capable of storing an ink, a downstream side tank that communicates with the ink jet head via the downstream port and is capable of storing the ink, and a circulating pump that feeds the ink from the downstream side tank back to the upstream side tank. The ink supplying mechanism has a relief valve that is capable of opening and closing at least a liquid surface of the downstream side tank with respect to the atmospheric pressure, closes the relief valve to drive the circulating pump, sets the liquid surface of the downstream side tank to a negative pressure, and feeds the ink from the downstream side tank back to the upstream side tank via a feedback channel to circulate the ink.

摘要翻译： 一种供墨机构，包括连接具有喷嘴的喷墨头，与喷嘴相对的压力室以及与压力室连通的上游端口和下游端口的循环系统，与油墨连通的上游侧罐 通过上游端口喷射头，并且能够存储墨水，通过下游端口与喷墨头连通并能够存储墨水的下游侧罐;以及循环泵，其从下游侧罐 回到上游侧油箱。 供墨机构具有能够相对于大气压至少打开和关闭下游侧箱的液面的安全阀，关闭安全阀以驱动循环泵，将下游侧的液面设定 并将油墨从下游侧罐经由反馈通道返回到上游侧罐，以使油墨循环。

公开(公告)号：US07850290B2

公开(公告)日：2010-12-14

申请号：US11617036

申请日：2006-12-28

申请人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

发明人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

IPC分类号： B41J2/175

CPC分类号： B41J2/17556 ,  B41J2/17509

摘要： An ink jet recording apparatus includes an ink jet head having a pressure chamber opposed to a nozzle, an upstream port that communicates with the pressure chamber, and a downstream port, a first tank that communicates with the ink jet head via the downstream port and is capable of storing an ink, a second tank that communicates with the first tank and is capable of storing the ink, a third tank that communicates with the ink jet head via the upstream port and communicates with the second tank and is capable of storing the ink, an opening and closing mechanism that is capable of opening and closing a circulation path that connects the ink jet head, the first tank, the second tank, and the third tank, and an air pressure adjusting mechanism that is capable of adjusting an internal air pressure in at least one of the first tank, the second tank, and the third tank. The ink is fed through the circulation path according to an air pressure generated by adjustment of the air pressure and an opening and closing state of the circulation path.

摘要翻译： 喷墨记录装置包括具有与喷嘴相对的压力室，与压力室连通的上游端口的喷墨头和下游端口，经由下游端口与喷墨头连通的第一箱体， 能够存储墨水的第二罐，与第一罐连通并且能够存储油墨的第二罐;第三罐，其经由上游端口与喷墨头连通并与第二罐连通并且能够存储油墨 ，能够打开和关闭连接喷墨头，第一罐，第二罐和第三罐的循环路径的打开和关闭机构，以及能够调节内部空气的气压调节机构 在第一罐，第二罐和第三罐中的至少一个中的压力。 根据通过调节空气压力和循环路径的打开和关闭状态产生的空气压力，将油墨供给通过循环路径。

公开(公告)号：US07597434B2

公开(公告)日：2009-10-06

申请号：US11694551

申请日：2007-03-30

申请人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

发明人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

IPC分类号： B41J2/18

CPC分类号： B41J2/175 ,  B41J2/17509 ,  B41J2/17556 ,  B41J2/17566 ,  B41J2/17596 ,  B41J29/377

摘要： “Energy per unit volume” P2(Pa) generated in ink 4 in a second ink tank 14 is maintained to the condition “P2={(1+r)×Pn}−(r×P1)” based on “energy per unit volume” P1(Pa) generated in ink 4 in the first ink tank 12, a proportion of “1:r” between channel resistance R1 (Pa·sec/m3) of ink from the first ink tank 12 to the neighborhood of a nozzle 1 and channel resistance R2 (Pa·sec/m3) of ink from the neighborhood of the nozzle 1 to the second ink tank 14, and appropriate pressure Pn (Pa) of the ink 4 in the neighborhood of the nozzle 1.

摘要翻译： 基于“每单位体积能量”P1将第二墨盒14中的墨4中产生的“单位体积能量”P2（Pa）维持在条件“P2 = {（1 + r）×Pn} - （rxP1）” （Pa）在第一墨水罐12中的墨水4中产生，墨水从第一墨水罐12到喷嘴1附近的通道电阻R1（Pa.sec / m3）与通道之间的比例为“1：r” 墨水从喷嘴1附近到第二墨槽14的电阻R2（Pa.sec / m3），以及在喷嘴1附近的墨水4的适当压力Pn（Pa）。

公开(公告)号：US20080158321A1

公开(公告)日：2008-07-03

申请号：US11617246

申请日：2006-12-28

申请人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

发明人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

IPC分类号： B41J2/18

CPC分类号： B41J2/175 ,  B41J2/17509 ,  B41J2/18

摘要： An ink jet recording apparatus according to an embodiment of the invention includes an ink jet head having a pressure chamber facing a nozzle, and an upstream port and a downstream port connected to the pressure chamber, a main tank connected to the ink jet head via the upstream port and capable of storing ink therein, and a sub-tank connected to the ink jet head via the downstream port and capable of storing ink, wherein at least when printing by ejecting ink from the nozzle, the relation between ph, r, R and Q is held to satisfy ph−{QR×(1/(1+r))}=Pn (Pn being a constant representing a proper pressure in the nozzle), where ph represents a potential pressure in the main tank as viewed from a surface of an orifice plate where the nozzle of the ink jet head is formed, R represents a total flow path resistance from the main tank to the sub-tank via the ink jet head, a ratio of a flow path resistance from the main tank to the nozzle and a flow path resistance from the nozzle to the sub-tank is expressed by 1:r, and Q represents a flow rate of ink that circulates in a circulation path formed by connecting the ink jet head, the main tank and the sub-tank.

摘要翻译： 根据本发明实施例的喷墨记录装置包括具有面向喷嘴的压力室的喷墨头和连接到压力室的上游端口和下游端口，主罐经由喷嘴头连接到喷墨头 上游端口并且能够存储墨水，以及通过下游端口连接到喷墨头并且能够存储墨水的副罐，其中至少在从喷嘴喷射墨水的情况下，ph，r，R之间的关系 并且Q被保持以满足ph- {QRx（1 /（1 + r）= Pn（Pn是表示喷嘴中的适当压力的常数），其中ph表示当从主表面观察时主容器中的潜在压力 形成喷墨头的喷嘴的孔板，R表示通过喷墨头从主罐到副罐的总流路阻力，从主槽到喷嘴的流路阻力的比 以及从喷嘴到副罐的流路阻力 由1：r表示，Q表示在通过连接喷墨头，主油箱和副罐形成的循环路径中循环的油墨的流量。

公开(公告)号：US20080158307A1

公开(公告)日：2008-07-03

申请号：US11617256

申请日：2006-12-28

申请人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

发明人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

IPC分类号： B41J2/175

CPC分类号： B41J2/175 ,  B41J2/17596

摘要： An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that communicates with the ink jet head via the upstream port and is capable of storing an ink, a downstream side tank that communicates with the ink jet head via the downstream port and is capable of storing the ink, and a circulating pump that feeds the ink from the downstream side tank back to the upstream side tank. The ink supplying mechanism has a relief valve that is capable of opening and closing at least a liquid surface of the downstream side tank with respect to the atmospheric pressure, closes the relief valve to drive the circulating pump, sets the liquid surface of the downstream side tank to a negative pressure, and feeds the ink from the downstream side tank back to the upstream side tank via a feedback channel to circulate the ink.

摘要翻译： 一种供墨机构，包括连接具有喷嘴的喷墨头，与喷嘴相对的压力室以及与压力室连通的上游端口和下游端口的循环系统，与油墨连通的上游侧罐 通过上游端口喷射头，并且能够存储墨水，下游侧罐，其经由下游端口与喷墨头连通并且能够存储墨水;以及循环泵，其从下游侧罐 回到上游侧油箱。 供墨机构具有能够相对于大气压至少打开和关闭下游侧箱的液面的安全阀，关闭安全阀以驱动循环泵，将下游侧的液面设定 并将油墨从下游侧罐经由反馈通道返回到上游侧罐，以使油墨循环。

公开(公告)号：US06592206B1

公开(公告)日：2003-07-15

申请号：US09692745

申请日：2000-10-19

申请人： Isao Suzuki ,  Masashi Shimosato ,  Hiroshi Ito

发明人： Isao Suzuki ,  Masashi Shimosato ,  Hiroshi Ito

IPC分类号： B41J2135

CPC分类号： B41J2/1634 ,  B41J2/1433 ,  B41J2/162 ,  B41J2/1623

摘要： A print head includes an orifice plate having a plurality of orifices arranged as ink-jet nozzles, and a head body partitioned into a plurality of ink chambers and integrated with the orifice plate such that ink is guided from the ink chambers to the orifices, for increasing an internal pressure of each ink chamber to eject ink from a corresponding orifice. Particularly, each orifice has a constriction for restricting an ink-jet error angle to a range of ±5 mrad with respect to a center axis thereof.

摘要翻译： 打印头包括具有布置为喷墨喷嘴的多个孔的孔板，以及分隔成多个墨室并与孔板一体化的头部主体，使得墨从墨室被引导到孔口，用于 增加每个墨水室的内部压力以从相应的孔喷射墨水。 特别地，每个孔具有用于将喷墨误差角相对于其中心轴限制在±5mrad范围内的收缩部。

公开(公告)号：US08113636B2

公开(公告)日：2012-02-14

申请号：US12170600

申请日：2008-07-10

申请人： Hideaki Nishida ,  Noboru Nitta ,  Isao Suzuki ,  Masashi Shimosato

发明人： Hideaki Nishida ,  Noboru Nitta ,  Isao Suzuki ,  Masashi Shimosato

IPC分类号： B41J2/175

CPC分类号： B41J2/1707 ,  B41J2/175

摘要： An inkjet head includes a nozzle to discharge liquid droplets, a pressure chamber which is configured to communicate with the nozzle and filled with liquid, a supply section which is configured to communicate with the pressure chamber and supplies the liquid to the pressure chamber, a recovery section which is configured to communicate with the pressure chamber and recovers the liquid from the pressure chamber, a bypass channel which is independent of the pressure chamber and connects the supply section with the recovery section, a pressure-control liquid chamber which is connected at one end to the bypass channel and connected at the other end to the atmosphere, and a porous member which is contained inside the pressure-control liquid chamber.

摘要翻译： 喷墨头包括用于排出液滴的喷嘴，配置成与喷嘴连通并且充满液体的压力室，被配置为与压力室连通并将液体供应到压力室的供应部分， 被配置为与压力室连通并且从压力室回收液体的部分，独立于压力室并将供应部分与回收部分连接的旁通通道，一个连接在一起的压力控制液体室 在另一端连接到旁路通道并与大气相连，并且包含在压力控制液室内的多孔构件。

公开(公告)号：US08109613B2

公开(公告)日：2012-02-07

申请号：US12952494

申请日：2010-11-23

申请人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

发明人： Noboru Nitta ,  Masashi Shimosato ,  Hideaki Nishida ,  Isao Suzuki

IPC分类号： B41J2/18

CPC分类号： B41J2/175 ,  B41J2/17596

摘要： An ink supplying mechanism includes a circulating system that connects an ink jet head having a nozzle, a pressure chamber opposed to the nozzle, and an upstream port and a downstream port that communicate with the pressure chamber, an upstream side tank that communicates with the ink jet head via the upstream port and is capable of storing an ink, a downstream side tank that communicates with the ink jet head via the downstream port and is capable of storing the ink, and a circulating pump that feeds the ink from the downstream side tank back to the upstream side tank. The ink supplying mechanism has a relief valve that is capable of opening and closing at least a liquid surface of the downstream side tank with respect to the atmospheric pressure, closes the relief valve to drive the circulating pump, sets the liquid surface of the downstream side tank to a negative pressure, and feeds the ink from the downstream side tank back to the upstream side tank via a feedback channel to circulate the ink.

摘要翻译： 一种供墨机构，包括连接具有喷嘴的喷墨头，与喷嘴相对的压力室以及与压力室连通的上游端口和下游端口的循环系统，与油墨连通的上游侧罐 通过上游端口喷射头，并且能够存储墨水，下游侧罐，其经由下游端口与喷墨头连通并且能够存储墨水;以及循环泵，其从下游侧罐 回到上游侧油箱。 供墨机构具有能够相对于大气压至少打开和关闭下游侧箱的液面的安全阀，关闭安全阀以驱动循环泵，将下游侧的液面设定 并将油墨从下游侧罐经由反馈通道返回到上游侧罐，以使油墨循环。

公开(公告)号：US07857423B2

公开(公告)日：2010-12-28

申请号：US12207755

申请日：2008-09-10

申请人： Isao Suzuki ,  Yoshiro Eto ,  Masashi Shimosato ,  Takahisa Ikeda ,  Megumi Shimizu ,  Minoru Koyata ,  Hideaki Nishida ,  Takashi Kukuchi

发明人： Isao Suzuki ,  Yoshiro Eto ,  Masashi Shimosato ,  Takahisa Ikeda ,  Megumi Shimizu ,  Minoru Koyata ,  Hideaki Nishida ,  Takashi Kukuchi

IPC分类号： B41J2/15

CPC分类号： B41J2/155 ,  B41J2002/14475 ,  B41J2202/20

摘要： An ink-jet head includes a nozzle array including plural nozzles. The nozzle array has a first nozzle group arranged in the center thereof and second nozzle groups arranged further on outer sides than the first nozzle group. Inter-nozzle pitches of the second nozzle groups are larger than inter-nozzle pitches of the first nozzle group. A direction in which nozzles of the second nozzle group eject an ink and a direction in which nozzles of the first nozzle group eject the ink are different.

摘要翻译： 喷墨头包括具有多个喷嘴的喷嘴阵列。 喷嘴阵列具有布置在其中心的第一喷嘴组，并且在外侧比第一喷嘴组进一步布置的第二喷嘴组。 第二喷嘴组的喷嘴间间距大于第一喷嘴组的喷嘴间间距。 第二喷嘴组的喷嘴喷射墨水的方向和第一喷嘴组喷嘴喷射墨水的方向不同。

公开(公告)号：US20090002441A1

公开(公告)日：2009-01-01

申请号：US12207755

申请日：2008-09-10

申请人： Isao Suzuki ,  Yoshiro Eto ,  Masashi Shimosato ,  Takahisa Ikeda ,  Megumi Shimizu ,  Minoru Koyata ,  Hideaki Nishida ,  Takashi Kukuchi

发明人： Isao Suzuki ,  Yoshiro Eto ,  Masashi Shimosato ,  Takahisa Ikeda ,  Megumi Shimizu ,  Minoru Koyata ,  Hideaki Nishida ,  Takashi Kukuchi

IPC分类号： B41J2/155

CPC分类号： B41J2/155 ,  B41J2002/14475 ,  B41J2202/20

摘要： An ink-jet head includes a nozzle array including plural nozzles. The nozzle array has a first nozzle group arranged in the center thereof and second nozzle groups arranged further on outer sides than the first nozzle group. Inter-nozzle pitches of the second nozzle groups are larger than inter-nozzle pitches of the first nozzle group. A direction in which nozzles of the second nozzle group eject an ink and a direction in which nozzles of the first nozzle group eject the ink are different.

摘要翻译： 喷墨头包括具有多个喷嘴的喷嘴阵列。 喷嘴阵列具有布置在其中心的第一喷嘴组，并且在外侧比第一喷嘴组进一步布置的第二喷嘴组。 第二喷嘴组的喷嘴间间距大于第一喷嘴组的喷嘴间间距。 第二喷嘴组的喷嘴喷射墨水的方向和第一喷嘴组喷嘴喷射墨水的方向不同。