公开(公告)号：US09340011B2

公开(公告)日：2016-05-17

申请号：US13218290

申请日：2011-08-25

申请人： Noboru Nitta

发明人： Noboru Nitta

IPC分类号： B41J2/045 ,  H02M3/07

CPC分类号： B41J2/04541 ,  B41J2/04548 ,  B41J2/0455 ,  B41J2/04573 ,  B41J2/04581 ,  H02M3/07

摘要： According to one embodiment, a apparatus for driving a capacitance-type actuator includes a first voltage source, a second voltage source, and a driver. The first voltage source outputs a first voltage to charge the capacitance-type actuator. The second voltage source outputs a second voltage to charge the actuator. The driver switches between first and second charges and first and second discharges. The first charge supplies the first voltage to the actuator. The second charge supplies the sum of the first voltage and the second voltage to the actuator. The first discharge emits a charge accumulated in the actuator and guides the charge to the second voltage source. The second discharge emits the charge accumulated in the actuator without guiding the charge to the second voltage source.

摘要翻译： 根据一个实施例，用于驱动电容型致动器的装置包括第一电压源，第二电压源和驱动器。 第一电压源输出第一电压以对电容型致动器充电。 第二电压源输出第二电压以对致动器充电。 驱动器在第一和第二充电和第一和第二放电之间切换。 第一个电荷向执行器提供第一个电压。 第二电荷将第一电压和第二电压的和提供给致动器。 第一次放电发射积累在致动器中的电荷，并将电荷引导到第二电压源。 第二放电发射累积在致动器中的电荷，而不将电荷引导到第二电压源。

公开(公告)号：US08474949B2

公开(公告)日：2013-07-02

申请号：US13218209

申请日：2011-08-25

申请人： Kazuhisa Kimura ,  Noboru Nitta

发明人： Kazuhisa Kimura ,  Noboru Nitta

IPC分类号： B41J2/165

CPC分类号： B41J2/16532 ,  B41J2/1433 ,  B41J2/1606

摘要： According to one embodiment, a printing apparatus includes an ink-jet head including a nozzle plate with a nozzle string in which a plurality of nozzle holes for discharging ink are arranged, and a cleaning device including an ink-repellent surface with ink repellency which is configured to come in contact with the nozzle plate in a state in which the ink-repellent surface is opposed to the ink-jet head, an ink-affinitive surface with ink affinity which is configured to create a gap between the ink-affinitive surface and the nozzle plate in a state in which the ink-repellent surface is in contact with the nozzle plate, and to have a smaller ink contact angle than the ink-repellent surface, and a plurality of suction ports formed in the ink-affinitive surface.

摘要翻译： 根据一个实施例，打印设备包括喷墨头，喷墨头包括具有喷嘴列的喷嘴板，喷嘴板中排列有用于排出墨水的多个喷嘴孔;以及清洁装置，其包括具有拒油性的拒墨表面， 被配置为在所述拒墨表面与所述喷墨头相对的状态下与所述喷嘴板接触，具有油墨亲和性的油墨亲合性表面，其被配置为在所述油墨亲合性表面与所述油墨亲合性表面之间形成间隙 所述喷嘴板处于所述拒墨表面与所述喷嘴板接触并且具有比所述拒墨表面更小的墨接触角的状态，以及形成在所述墨亲合表面中的多个吸入口。

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。

公开(公告)号：US06462433B1

公开(公告)日：2002-10-08

申请号：US09372820

申请日：1999-08-11

申请人： Noboru Nitta ,  Jun Takamura ,  Shunichi Ono

发明人： Noboru Nitta ,  Jun Takamura ,  Shunichi Ono

IPC分类号： H02J318

CPC分类号： B41J2/0451 ,  B41J2/04541 ,  B41J2/04548 ,  B41J2/04555 ,  B41J2/04581 ,  B41J2/04588 ,  G01R31/016 ,  G01R31/028 ,  G01R31/2829 ,  Y10T307/527

摘要： A capacitive load driving unit includes a plurality of capacitive loads, a drive circuit for charging and discharging the capacitive loads, a pair of power lines for supplying a drive voltage from an external power source to the drive circuit, and a current reserve circuit for reserving a current required by the drive circuit for charging the capacitive loads. The current reserve circuit includes a capacitor that is charged by the drive voltage from the power lines, and a coupler section for coupling the capacitor between the power lines except for when a defect inspection is conducted.

摘要翻译： 容性负载驱动单元包括多个电容性负载，用于对电容性负载进行充电和放电的驱动电路，用于将来自外部电源的驱动电压提供给驱动电路的一对电力线，以及用于保留 驱动电路为容量负载充电所需的电流。 当前的备用电路包括由来自电力线的驱动电压充电的电容器，以及用于在进行缺陷检查时在电力线之间耦合电容器的耦合器部分。

公开(公告)号：US5936644A

公开(公告)日：1999-08-10

申请号：US760578

申请日：1996-12-04

申请人： Shunichi Ono ,  Noboru Nitta ,  Jun Takamura

发明人： Shunichi Ono ,  Noboru Nitta ,  Jun Takamura

IPC分类号： B41J2/045 ,  B41J2/055 ,  B41J2/205 ,  H01L41/09 ,  B41J2/07

CPC分类号： B41J2/04506 ,  B41J2/04521 ,  B41J2/04541 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2202/10

摘要： A head driving device includes an ink-jet head having a large number of ink chambers arranged side by side and separated by piezoelectric elements, FETs for connecting electrodes of the ink chambers to a +Vcc power source line, FETs for connecting the electrodes of the ink chambers to a -Vcc power source line, bi-directional switches for connecting the electrodes of the ink chambers to a ground line, selectors each for selecting one of a plurality of pulse signals in which at least one of the pulse width and pulse interval is different according to gradation data, sequencers for generating sequence signals according to the pulse signals from the selectors, and decoders for decoding the sequence signals into driving signals and supplying them to the FETs and bi-directional switches. Particularly, the head driving device changes the voltage and timing for causing the piezoelectric element to effect the distorting operation according to the selected pulse signal so as to change an amount of ink ejected from the ink chamber and perform the gradation printing for each dot.

摘要翻译： 头驱动装置包括：喷墨头，其具有并排布置并由压电元件分离的多个墨室，用于将墨室的电极连接到+ Vcc电源线的FET，用于连接 墨室连接到-Vcc电源线，用于将墨室的电极连接到地线的双向开关，用于选择多个脉冲信号中的一个的选择器，其中脉冲宽度和脉冲间隔中的至少一个 根据灰度数据不同，根据来自选择器的脉冲信号产生序列信号的定序器，以及用于将序列信号解码为驱动信号并将其提供给FET和双向开关的解码器。 特别地，头驱动装置改变使压电元件根据所选择的脉冲信号进行失真操作的电压和定时，以便改变从墨室喷出的墨量并对每个点执行渐变打印。

公开(公告)号：US20120176430A1

公开(公告)日：2012-07-12

申请号：US13337437

申请日：2011-12-27

申请人： Noboru Nitta ,  Tomohisa Yoshimaru

发明人： Noboru Nitta ,  Tomohisa Yoshimaru

IPC分类号： B41J29/38 ,  H02J7/00

CPC分类号： B41J2/04581 ,  B41J2/04541 ,  B41J2/04548

摘要： According to one embodiment, a drive circuit of a capacitive load adjusts an impedance of at least one of the switches that are turned on to discharge a charge stored in the capacitive load back to a direct-current power source.

摘要翻译： 根据一个实施例，电容性负载的驱动电路调节被接通的至少一个开关的阻抗，以将存储在电容性负载中的电荷放回到直流电源。

公开(公告)号：US20120056935A1

公开(公告)日：2012-03-08

申请号：US13035608

申请日：2011-02-25

申请人： Noboru Nitta

发明人： Noboru Nitta

IPC分类号： B41J2/165

CPC分类号： B41J2/16511 ,  B41J2/16585

摘要： According to one embodiment, an inkjet recording device includes a cleaning member which faces a nozzle surface of an inkjet head and moves along a row of nozzles, a control device which controls ones of the nozzles to partially discharge ink, the ones of the nozzles positioning in an area which the cleaning member faces when the cleaning member moves, and an ink retaining part which retains the ink between the cleaning member and the nozzle surface of the inkjet head which faces the cleaning member.

摘要翻译： 根据一个实施例，一种喷墨记录装置包括：清洁部件，其面向喷墨头的喷嘴表面并沿着一排喷嘴移动，控制装置，其控制喷嘴部分地排出墨水，所述喷嘴定位 在清洁部件移动时清洁部件所面对的区域中，以及将墨水保持在清洁部件和喷墨头的与清洁部件的喷嘴面之间的墨水保持部。

公开(公告)号：US20090295888A1

公开(公告)日：2009-12-03

申请号：US12471018

申请日：2009-05-22

申请人： Noboru Nitta ,  Takanori Gomi

发明人： Noboru Nitta ,  Takanori Gomi

IPC分类号： B41J2/18

CPC分类号： B41J2/175 ,  B41J2/17509

摘要： A circulating type ink supply system includes an upstream ink tank, an upstream ink flow channel connected at one end thereof to the upstream ink tank, a nozzle branch portion connected to the other end of the upstream ink flow channel and being in communication with a nozzle configured to discharge ink, a downstream ink flow channel connected at one end thereof to the nozzle branch portion and a downstream ink tank connected to the other end of the downstream ink flow channel, wherein an energy per unit volume determined by a sum value of a static pressure and a potential energy of the ink in the upstream ink tank when the circulation of the ink is stopped does not exceed the energy per unit volume of the ink at an atmospheric pressure at a level of the nozzle.

摘要翻译： 循环型供墨系统包括上游墨盒，一端与上游墨盒连接的上游墨流道，连接到上游墨流道的另一端并与喷嘴连通的喷嘴分支部 被配置为将墨水排出，在其一端连接到喷嘴分支部分的下游墨水流动通道和连接到下游墨水流动通道的另一端的下游墨水罐，其中每单位体积的能量由 当墨水的循环停止时，上游墨罐中的墨水的静压力和潜在能量不超过在喷嘴水平处的大气压下墨水的每单位体积的能量。