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1. 发明授权

EP1950039B1 LIQUID DISCHARGE DEVICE, PIEZOELECTRIC INK JET HEAD, AND LIQUID DISCHARGE DEVICE DRIVE METHOD 有权转让
公开(公告)号：EP1950039B1
公开(公告)日：2018-08-29
申请号：EP06810926.3
申请日：2006-09-29
申请人： Kyocera Corporation , Brother Kogyo Kabushiki Kaisha
发明人： MATSUMOTO, Ayumu , IWAO, Naoto
IPC分类号： B41J2/045 , B41J2/055
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2002/14266
摘要： It is possible to minimize the amplitude of residual vibration of a piezoelectric actuator so as to maintain the image quality of a formed image at a preferable level in case of an ink jet head, for example. A liquid discharge device includes a control unit (14) for ON/OFF control of a drive voltage applied to the piezoelectric actuator. The control unit (14) has a micro vibration control section (23) for drive-controlling a drive circuit so as to micro-vibrate the piezoelectric actuator in a waiting state not discharging a liquid drop from a nozzle, in a range that no liquid drop is discharged in the nozzle. The piezoelectric ink jet head includes the liquid discharge device. The drive method is for micro-vibrating the piezoelectric actuator in the waiting state not discharging a liquid drop from the nozzle, in a range that no liquid drop is discharged from the nozzle.

2. 发明公开

EP3222422A1 METHOD FOR OPERATING AN INKJET PRINT HEAD AND AN INKJET PRINT HEAD ASSEMBLY 有权转让
标题翻译：用于操作喷墨打印头和喷墨打印头组件的方法
公开(公告)号：EP3222422A1
公开(公告)日：2017-09-27
申请号：EP17162036.2
申请日：2017-03-21
申请人： OCE Holding B.V.
发明人： HEIJNEN, Roel M.P. , GOLLATZ, Johannes A.T.
IPC分类号： B41J2/045
CPC分类号： B41J2/04588 , B41J2/0451 , B41J2/04581 , B41J2/04596 , B41J2/04598
摘要： In a method for operating an inkjet print head for generating a droplet of a liquid, the inkjet print head comprises a number of ejection units, each ejection unit comprising a piezo-electric actuator having a signal electrode, a common electrode and a piezoelectric layer interposed between the signal electrode and the common electrode. The method comprises providing a non-jetting pulse signal on a common electrode, wherein the non-jetting pulse signal is adapted to generate a pressure wave in the liquid in the corresponding ejection unit without expelling a droplet of the liquid. The method further comprises providing a jetting pulse signal on a signal electrode, wherein the jetting pulse signal is adapted to generate a pressure wave in the liquid in the corresponding ejection unit such that a droplet of the liquid is expelled.
Further, an inkjet print head assembly comprising an inkjet print head and a control circuitry is provided. The inkjet print head assembly is configured for performing the above method.
摘要翻译：在用于操作用于产生液滴的喷墨打印头的方法中，喷墨打印头包括多个喷射单元，每个喷射单元包括具有信号电极，公共电极和插入的压电层的压电致动器在信号电极和公共电极之间。该方法包括在公共电极上提供非喷射脉冲信号，其中非喷射脉冲信号适于在相应的喷射单元中的液体中产生压力波而不排出液滴。该方法还包括在信号电极上提供喷射脉冲信号，其中喷射脉冲信号适于在相应的喷射单元中的液体中产生压力波，从而排出液滴。此外，提供了包括喷墨打印头和控制电路的喷墨打印头组件。喷墨打印头组件被配置用于执行上述方法。

3. 发明公开

EP3115210A3 INKJET HEAD AND INKJET PRINTER 有权转让
标题翻译： TINTENSTRAHLKOPF UND TINTENSTRAHLDRUCKER
公开(公告)号：EP3115210A3
公开(公告)日：2017-02-22
申请号：EP16175321.5
申请日：2016-06-20
申请人： Kabushiki Kaisha Toshiba , Toshiba TEC Kabushiki Kaisha
发明人： HIYOSHI, Teruyuki , NITTA, Noboru
IPC分类号： B41J2/045
CPC分类号： B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2/04596 , B41J2/04598
摘要： An inkjet head comprises a pressure chamber into which ink is filled, a nozzle connected with the pressure chamber, an actuator which changes volume of the inside of the pressure chamber to eject an ink droplet from the nozzle connected with the pressure chamber, and a drive circuit which outputs a drive signal which contains an expansion pulse for increasing the volume of the pressure chamber and a contraction pulse for decreasing the volume of the pressure chamber when an ink droplet is ejected and outputs a precursor signal for changing the volume of the pressure chamber to a level at which the ink droplet is not ejected from the nozzle at the time of a precursor minute vibration for minutely vibrating ink.
摘要翻译：一种喷墨头，包括一个压力室，油墨被填充到该压力室中，一个与该压力室连接的喷嘴，一个改变压力室内部的体积以从与该压力室连接的喷嘴喷出一个墨滴的致动器，输出包含用于增加压力室的体积的膨胀脉冲的驱动信号的电路和用于在喷射墨滴时减小压力室的体积的收缩脉冲，并输出用于改变压力室的体积的前驱信号达到在前体微小振动时墨滴未从喷嘴喷出的水平，用于微小振动的油墨。

4. 发明公开

EP3041682A1 INKJET RECORDING METHOD AND INKJET RECORDING DEVICE 有权
标题翻译： TINTENSTRAHLAUFZEICHNUNGSVERFAHREN UND TINTENSTRAHLAUFZEICHNUNGSVORRICHTUNG
公开(公告)号：EP3041682A1
公开(公告)日：2016-07-13
申请号：EP14841666.2
申请日：2014-08-29
申请人： Ricoh Company, Ltd.
发明人： MASUDA, Kiminori , KOJIMA, Mariko , BANNAI, Akiko , TAMAI, Takashi , KITAOKA, Naoko , KOHDA, Tomohiko
IPC分类号： B41J2/015 , B41J2/01
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04586 , B41J2/04588 , B41J2/04595 , B41J2/14274 , C09D11/40
摘要： An inkjet recording method performed by inkjet recording device including nozzle plate with nozzle to eject droplets of ink; recording head including liquid chamber with which the nozzle is in communication, and pressure-generating unit configured to generate pressure in the liquid chamber; and signal-generating unit configured to generate signal applied to the pressure-generating unit, and allowing the droplets of ink to eject by pressure generated by the pressure-generating unit according to the signal, wherein the ink has static surface tension of 18.0mN/m to 27.0mN/m at 25°C, the ink has receding contact angle on the nozzle plate of 50° or more, the signal has two-step pull pulse for pulling the ink into the nozzle in two-step manner within one printing unit cycle, and the method includes pulling the ink located in proximity to nozzle outlet into the nozzle of the two-step pull pulse, to form meniscus at predetermined position.
摘要翻译：喷墨记录方法由喷墨记录装置执行，喷墨记录装置包括具有喷嘴的喷嘴板以喷射油墨; 记录头，包括与喷嘴连通的液体室;以及压力产生单元，被配置为在液体室中产生压力; 以及信号发生单元，其被配置为产生施加到所述压力发生单元的信号，并且根据所述信号使得由所述压力产生单元产生的压力喷射墨滴，其中所述墨水具有18.0mN / 在25℃下m至27.0mN / m，油墨在喷嘴板上的后退接触角为50°以上，该信号具有两步拉动脉冲，用于将墨水以两步方式拉入喷嘴内打印单元循环，并且该方法包括将位于喷嘴出口附近的墨水拉到两步拉脉冲的喷嘴中，以在预定位置形成弯液面。

5. 发明授权

EP1697141B1 COMPOSITE PRINTHEAD FIRE SIGNALS 有权转让
标题翻译：复合机头跳闸信号
公开(公告)号：EP1697141B1
公开(公告)日：2016-05-11
申请号：EP04813984.4
申请日：2004-12-14
申请人： Funai Electric Co., Ltd.
发明人： BARKLEY, Lucas, D. , STEVENSON, David, C.
IPC分类号： B41J29/38 , B41J2/04
CPC分类号： B41J2/04541 , B41J2/04586 , B41J2/04588 , B41J2/04598

6. 发明授权

EP1957281B1 IMAGING FORMING APPARATUS 有权
标题翻译：成像成形设备
公开(公告)号：EP1957281B1
公开(公告)日：2016-01-27
申请号：EP06834162.7
申请日：2006-11-30
申请人： Ricoh Company, Ltd.
发明人： SASAKI, Shino
IPC分类号： B41J2/045 , B41J2/055 , B41J2/205
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596

7. 发明公开

EP2918417A1 Firing signal forwarding in a fluid ejection device 有权
标题翻译：澳大利亚新西兰白俄罗斯
公开(公告)号：EP2918417A1
公开(公告)日：2015-09-16
申请号：EP15160847.8
申请日：2008-03-12
申请人： Hewlett-Packard Development Company, L.P.
发明人： Martin, Eric , Cumbie, Michael W. , Mackenzie, Mark H. , Smektala, Volker , Shepherd, Matthew A.
IPC分类号： B41J2/45 , B41J29/38 , B41J2/175
CPC分类号： B41J2/1753 , B41J2/04528 , B41J2/04543 , B41J2/0458 , B41J2/04588 , B41J2/04591 , B41J2/04598
摘要： A fluid ejection device has a nozzle group with a plurality of nozzle circuits and a fire controller in electronic communication with the plurality of nozzle circuits. The fire controller includes a fire data input for receiving fire data, a warm data input for receiving warm data, and a firing signal input for receiving a firing signal having a firing pulse preceded by a warming pulse. The fire controller is operable to conditionally modify the firing signal according to a state of warm data received via the warm data input and a state of fire data received via the fire data input. The fire controller is operable to forward the conditionally modified firing signal to one of the plurality of nozzle circuits to pass a current representative of the conditionally modified firing signal through a firing element of the particular nozzle circuit. Conditionally modifying the firing signal comprises either not modifying the firing signal, blocking the firing pulse and not blocking the warming pulse or blocking the firing pulse and the warming pulse.
摘要翻译：流体喷射装置具有喷嘴组，其具有多个喷嘴电路和与多个喷嘴电路电连接的消防控制器。防火控制器包括用于接收火灾数据的火灾数据输入，用于接收暖数据的暖数据输入和用于接收具有在加热脉冲之前的发射脉冲的点火信号的触发信号输入。消防控制器可操作以根据经由暖数据输入接收的暖数据的状态和经由火灾数据输入接收到的火情数据的状态有条件地修改发射信号。消防控制器可操作以将有条件地修改的发射信号转发到多个喷嘴电路中的一个，以通过特定喷嘴电路的击发元件传递代表有条件改变的点火信号的电流。有条件地修改点火信号包括不修改点火信号，阻塞点火脉冲并且不阻塞加温脉冲或阻塞点火脉冲和加温脉冲。

8. 发明授权

EP1537996B1 Inkjet recording apparatus and method for controlling same 有权
标题翻译：喷墨记录装置及其控制方法
公开(公告)号：EP1537996B1
公开(公告)日：2013-09-04
申请号：EP04257421.0
申请日：2004-11-30
申请人： Canon Kabushiki Kaisha
发明人： Wada, Satoshi , Yamaguchi, Hiromitsu , Yoshino, Hitsohi
IPC分类号： B41J2/05 , B41J2/145
CPC分类号： B41J2/145 , B41J2/04528 , B41J2/04563 , B41J2/0458 , B41J2/04588 , B41J2/04591 , B41J2/04598 , B41J2202/20

9. 发明公开

EP1705014A3 Page wide ink jet printing apparatus and method 有权
标题翻译： Seitenbreitiges喷墨打印设备和方法
公开(公告)号：EP1705014A3
公开(公告)日：2012-03-14
申请号：EP06006020.9
申请日：2006-03-23
申请人： CANON KABUSHIKI KAISHA
发明人： Wada, Satoshi
IPC分类号： B41J2/155 , B41J2/515 , B41J2/355
CPC分类号： B41J2/0458 , B41J2/04581 , B41J2/04588 , B41J2/04591 , B41J2/04598 , B41J2/155 , B41J2/515 , B41J2202/20
摘要： The present invention provides an ink jet printing apparatus that carries out printing using a connecting head composed of a plurality of chips connected together and each having a array of nozzles through which ink is ejected, wherein possible white stripes are suppressed, the white stripes being attributed to connecting portions in each chip are reduced. According to the present invention, a plurality of chips CH are arranged in each connecting head; each of the chips has a nozzle array of a plurality of nozzles. Each nozzle array is provided with a connecting portion nozzle and non-connecting portion nozzles. The connecting portion nozzle in one of the nozzle arrays overlaps the corresponding non-connecting portion nozzle in the other nozzle array in a direction in which the nozzle arrays are arranged. Ejection of ink droplets from the non-connecting portion nozzle is controlled by control means in accordance with printing conditions.

10. 发明公开

EP2344340A1 PRECURSOR PULSE GENERATION FOR INKJET PRINTHEAD 有权
标题翻译： PRE-PULSE生产喷墨头
公开(公告)号：EP2344340A1
公开(公告)日：2011-07-20
申请号：EP08877626.5
申请日：2008-10-22
申请人： Hewlett-Packard Development Company, L.P.
发明人： LINN, Scott
IPC分类号： B41J29/38
CPC分类号： B41J2/04596 , B41J2/0458 , B41J2/04591 , B41J2/04598
摘要： The present invention is embodied in a printing system (100) that includes a printhead (102) having a controller (510) configured to initiate at least one precursor pulse, send the at least one precursor pulse to a first nozzle (560), remove the at least one precursor pulse from the first nozzle for a predetermined period of time to create a pause, initiate at least one firing pulse after the pause and send the at least one firing pulse to the first nozzle (560) for ejecting an ink drop.

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