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公开(公告)号：US20190217627A1
公开(公告)日：2019-07-18
申请号：US16243179
申请日：2019-01-09
发明人： Takahiro ARIMA , Tsuneaki TAKAGISHI , Manabu KATO , Shoki YAMAGUCHI , Satoshi HASEGAWA , Mamoru OKANO
摘要： An inkjet recording apparatus, which can enhance the reliability of the phase search result to detect the optimal timing when the ink particles are electrically charged by the electrification electrode and secure the stable printing quality, is provided. The inkjet recording apparatus includes an ink receptacle in which a printing ink for an object to be printed is received; a nozzle which is connected to the ink receptacle and from which the ink fed under pressure is discharged; an electrification electrode to make ink particles discharged from the nozzle electrically charged; an electrification signal generation unit to generate an electrification signal to make the electrification electrode electrically charged; deflection electrodes to make the ink particles electrically charged by the electrification electrode deflect; a gutter to recover the ink unused for the printing; and a control unit to control operations of the inkjet recording apparatus as a whole; a first electric charge detection section to detect an amount of electric charge in accordance with the electrically charged ink particles between the electrification electrode and the deflection electrodes; and a second electric charge detection section to detect an amount of electric charge of the ink flowing within the gutter.
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公开(公告)号：US20230398777A1
公开(公告)日：2023-12-14
申请号：US18238841
申请日：2023-08-28
发明人： Takahiro ARIMA , Sho Mizoguchi , Akira Miyao , Fumiomi Ueda , Mamoru Okano
CPC分类号： B41J2/02 , B41J2/08 , B41J2/16508 , B41J2/16552 , B41J2/175 , B41J2/185 , B41J2002/022
摘要： An inkjet recording device includes a main body unit, a print head unit, and a head mounting unit. The main body unit includes an ink container. The print head unit includes a nozzle connected to the ink container. The head mounting unit is configured to allow the print head unit to be mounted on the head mounting unit. The head mounting unit includes a head detection unit that detects whether or not the print head unit is mounted, using a magnetic force.
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公开(公告)号：US20210229446A1
公开(公告)日：2021-07-29
申请号：US15734018
申请日：2019-01-24
发明人： Shoki YAMAGUCHI , Takahiro ARIMA , Sho MIZOGUCHI , Mamoru OKANO , Akira MIYAO
IPC分类号： B41J2/165
摘要： An object of the present invention is to provide an inkjet recording device having a print head cleaning function of preventing a cleaning liquid from spilling around the inkjet recording device and storing the cleaning liquid used for cleaning in a highly airtight container. In order to realize the foregoing object, the inkjet recording device includes a main body including an ink container that accommodates an ink used to perform printing on a print target, and a cleaning liquid container that accommodates a cleaning liquid; a print head including a nozzle that is connected to the ink container to discharge the ink which is pressurized and supplied, a charging electrode that charges ink particles to be used for the printing, a deflection electrode that deflects the ink particles charged by the charging electrode, and a gutter that recovers the ink particles which are not used for the printing; and a head cleaning unit including a cleaning nozzle that discharges the cleaning liquid, and an insertion port into which the print head is insertable.
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公开(公告)号：US20230391089A1
公开(公告)日：2023-12-07
申请号：US18032722
申请日：2020-11-04
发明人： Takahiro ARIMA , Yusuke OKAMOTO , Sho MIZOGUCHI , Akira MIYAO , Tatsuo MATSUMOTO
CPC分类号： B41J2/1721 , B41J2/185 , B41J2002/1735 , B41J2002/1742
摘要： An object of the present invention is to reduce the amount of solvent vapor floating around when a print head is cleaned in an inkjet recording device. In addition, an object is to reduce ink stains on a periphery of the print head. An inkjet recording device includes a main body portion and a print head. The main body portion includes an ink container that contains ink, and a solvent container that contains a solvent. The print head includes a nozzle connected to the ink container to discharge the pressurized and supplied ink, a charging electrode that charges ink particles discharged from the nozzle, a deflection electrode that deflects the ink particles charged by the charging electrode, and a gutter that collects the ink. In addition, a head mounting unit for cleaning the print head is provided. The head mounting unit is connected to a solvent vapor suction path for suctioning solvent vapor generated therearound.
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公开(公告)号：US20220072847A1
公开(公告)日：2022-03-10
申请号：US17424524
申请日：2020-01-28
发明人： Takao WATARI , Mitsuo IGARI , Takahiro ARIMA
摘要： An inkjet recording device and a method for controlling an inkjet recording device are provided. A heating device that heats the ink to be supplied to a nozzle immediately ahead of the nozzle, a thermometer that detects a temperature of the ink inside the heating device or after heating, a viscometer that detects a viscosity of the ink in a main ink container are provided. The heating device is driven using a detection value of the thermometer to control the temperature of the ink such that the viscosity reaches an ink viscosity which enables normal printing, and when the viscosity of the ink is out of a range which enables printing, the solvent or the replenishment ink is supplied to the main ink container using a detection value of the viscometer such that the viscosity reaches the range which enables normal printing.
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公开(公告)号：US20190275789A1
公开(公告)日：2019-09-12
申请号：US16349117
申请日：2017-12-08
摘要： The purpose of the present invention is to provide an inkjet recording device that is capable of minimizing contamination, by floating ink, of the inside and outside of a print head without increasing the volatilization volume of a solvent. In order to attain the purpose, provided is an inkjet recording device having: a nozzle which applies print onto a printing medium by discharging ink; and a print head which houses therein a deflection electrode for deflecting the discharged ink by means of an electrostatic force, the inkjet recording device being provided with an ink suction unit which sucks in floating ink by means of the electrostatic force.
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公开(公告)号：US20170348977A1
公开(公告)日：2017-12-07
申请号：US15611947
申请日：2017-06-02
发明人： Takahiro ARIMA , Mitsuo IGARI , Mamoru OKANO
CPC分类号： B41J2/185 , B41J2/085 , B41J2/09 , B41J2/095 , B41J2/175 , B41J2/17513 , B41J29/13 , B41J2002/1853
摘要： An inkjet recording apparatus includes an ink container. The ink container stores an ink for printing on a printing object. The inkjet recording apparatus also includes a stirring mechanism. The stirring mechanism stirs the ink stored in the ink container. The stirring mechanism includes a stationary shaft and a rotating body. The rotating body rotates around the stationary shaft. The stationary shaft and rotating body are placed in a lower part of the ink container.
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公开(公告)号：US20150352845A1
公开(公告)日：2015-12-10
申请号：US14763412
申请日：2014-01-29
发明人： Mamoru OKANO , Tomohiro INOUE , Takahiro ARIMA , Mitsuo IGARI
IPC分类号： B41J2/165
CPC分类号： B41J2/16505 , B41J2/02 , B41J2/095 , B41J2/175 , B41J2/17596 , B41J2/18 , B41J2/185 , B41J2/19 , B41J2002/16555 , B41J2002/1853
摘要： An inkjet printing device is configured to allow appropriate separation of the ink solvent liquefied in the exhaust passage from the exhaust gas, and prevention of the separated exhaust gas from contaminating the inside of the print head into which it is returned so that the resultant function achieves the low running costs. When the ink fed from an ink container 3 is jetted from a nozzle 6 for printing on a printing object, the ink 7 that has not been used for the printing is drawn by a gutter 8 along with air and collected into the ink container 3. The air that is mixed with the ink solvent and collected is discharged as the exhaust gas into an exhaust passage 15 from the ink container 3. At this time, the liquefied ink solvent that has been liquefied in the exhaust passage 15 is separated from the gas by retaining the liquid using capillary action in a gas-liquid separator 22, and the separated liquefied ink solvent is collected. The trace amount of the ink solvent leaking on the exhaust side of the gas-liquid separator is prevented from dripping into the print head by a drip prevention unit.
摘要翻译： 喷墨打印装置被配置为允许在废气通道中液化的油墨溶剂与废气的适当分离，并且防止分离的废气污染其中返回的打印头的内部，使得所得到的功能达到 运行成本低。 当从用于在打印对象上印刷的喷嘴6喷射从油墨容器3供给的油墨时，未被用于印刷的油墨7与空气一起被槽8吸引并收集到油墨容器3中。 与油墨溶剂混合并收集的空气作为废气从墨盒3排出到排气通道15中。此时，在排气通道15中液化的液化油溶剂与气体分离 通过使用毛细作用将液体保持在气液分离器22中，并且收集分离的液化油墨溶剂。 防止在气液分离器的排气侧泄漏的痕量的油墨溶剂被防滴落单元滴落到打印头中。
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公开(公告)号：US20240343045A1
公开(公告)日：2024-10-17
申请号：US18682151
申请日：2022-06-27
发明人： Yusuke OKAMOTO , Takahiro ARIMA , Akira MIYAO
CPC分类号： B41J2/195 , B41J2/17566 , B41J2/17596 , B41J2/185
摘要： An inkjet recording apparatus is made capable of preventing ink from sticking during inactivity of the apparatus and, when viscosity of ink contained in a main ink container has fallen outside an appropriate range of viscosity, adjusting ink viscosity to fall within the appropriate range. The apparatus is configured to perform repetitively supplying a solvent contained in a solvent container to the print head and letting the solvent flow back to an ink container through a circulation path and a collection path at intervals of a certain period of time during inactivity of printing by the print head through controlling the print head and a main body.
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公开(公告)号：US20230127348A1
公开(公告)日：2023-04-27
申请号：US17911340
申请日：2020-12-09
发明人： Yusuke OKAMOTO , Takahiro ARIMA , Sho MIZOGUCHI , Akira MIYAO , Tatsuo MATSUMOTO
IPC分类号： B41J2/165
摘要： The present invention provides an inkjet recording device capable of automatically cleaning the head tip and a cleaning method for inkjet recording apparatus.
An inkjet recording apparatus has a printhead that receives a supply of ink and prints, a main unit that supplies said ink to said printhead, and a cleaning unit that has a cleaning tank into which said entire printhead is inserted and injects a cleaning solution from a cleaning nozzle to said printhead for cleaning. The cleaning unit has a cleaning nozzle that sprays cleaning liquid into the cleaning tank and a cleaning base section that has a housing section that accommodates the tip of the printhead and allows said cleaning liquid to flow into the housing section. The cleaning liquid is allowed to flow into the housing section to clean the tip of the printhead.
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