公开(公告)号：US20090015640A1

公开(公告)日：2009-01-15

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：US20080158320A1

公开(公告)日：2008-07-03

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： B41J2/18

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：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：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：US20070252860A1

公开(公告)日：2007-11-01

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： B41J29/38

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： 在第二墨罐14中的墨4中产生的“每单位体积能量”P 2（Pa）基于“每单位能量”维持在条件“P 2 = {（1 + r）×Pn} - （rxP 1）” 在第一墨罐12中的墨4中产生的体积“P 1（Pa）”，来自第一墨盒12的墨水的通道电阻R 1（Pa.sec / m 3+）之间的比例“1：r” 第一墨水罐12到喷嘴1附近，并且从喷嘴1附近到第二墨盒14的墨水的通道电阻R 2（Pa.sec / m 3+）和适当的压力 Pn（Pa）在喷嘴1附近。

公开(公告)号：US08205973B2

公开(公告)日：2012-06-26

申请号：US12580954

申请日：2009-10-16

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 ,  B41J2/17509 ,  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- {QR×（1 /（1 + r））} = Pn（Pn是表示喷嘴中适当压力的常数），其中ph表示主罐中的潜在压力， 形成有喷墨头的喷嘴的孔板的表面，R表示经由喷墨头从主槽到副罐的总流路阻力，与主罐的流路阻力的比 到喷嘴和从喷嘴到子喷嘴的流路阻力， 罐由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：US07845784B2

公开(公告)日：2010-12-07

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： B41J2/18

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：US20100134539A1

公开(公告)日：2010-06-03

申请号：US12580954

申请日：2009-10-16

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： B41J29/38 ,  B41J2/175 ,  B41J2/19 ,  B41J2/165

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和连接到压力室的上游端口和下游端口的喷墨头，通过该喷墨头连接到喷墨头的主罐 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- {QR×（1 /（1 + r））} = Pn（Pn是表示喷嘴中适当压力的常数），其中ph表示主罐中的潜在压力， 形成有喷墨头的喷嘴的孔板的表面，R表示经由喷墨头从主槽到副罐的总流路阻力，与主罐的流路阻力的比 到喷嘴和从喷嘴到子喷嘴的流路阻力， 罐由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。