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1. 发明公开

EP4385737A1 INKJET RECORDING DEVICE AND INKJET RECORDING METHOD 审中-实审
公开(公告)号：EP4385737A1
公开(公告)日：2024-06-19
申请号：EP22855748.4
申请日：2022-06-27
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： MAEDA Akira
IPC分类号： B41J2/025 , B41J2/01 , B41J2/085 , B41J2/09
CPC分类号： B41J2/09 , B41J2/025 , B41J2/01 , B41J2/085
摘要： An inkjet recording device is provided which is capable of automatically determining an excitation voltage of a piezoelectric element optimal for formation of ink droplets. An excitation voltage value is applied to a piezoelectric element of a nozzle (8) over a plurality of sweeping events with a deflection electrode de-energized so as to sweep from a high voltage side to a low voltage side in a predetermined voltage range (S11 to S15). A charge voltage is applied to ink droplets generated by the applied excitation voltage value in a plurality of arbitrary printing phases to give an electric charge thereto. A charge amount given to the ink droplets is detected by a charge amount sensor (25) to obtain a printing phase. When the relationship of a current printing phase to a previous printing phase detected for each sweeping event is reversed from an increasing side to a decreasing side and two decrease determinations of the printing phase are established in succession (S16), an excitation voltage value corresponding to the printing phase of the sweeping event immediately before the first decrease determination is set as a final excitation voltage value (S17).

2. 发明公开

EP2805826A1 Printhead calibration and printing 审中-公开
标题翻译： Druckkopfkalibrierung und Drucken
公开(公告)号：EP2805826A1
公开(公告)日：2014-11-26
申请号：EP13168443.3
申请日：2013-05-20
申请人： Tonejet Limited
发明人： Brown, Peter James , Bacon, Robin Timothy , Clippingdale, Andrew John , Conradie, Ewan Hendrik , Lecheheb, Ammar , Sharp, John Lawton
IPC分类号： B41J2/06 , B41J2/045
CPC分类号： B41J2/04573 , B41J2/04536 , B41J2/04576 , B41J2/04586 , B41J2/06 , B41J2/065 , B41J2/085 , B41J2/095
摘要： The invention relates to a method of printing a two-dimensional bit-mapped image having a number of pixels per row, the printhead having a row of ejection channels and each ejection channel having associated ejection electrodes to which voltages are applied in use. During printing, in order to cause volumes of fluid to be ejected from selected ejection channels of the printhead for printing, voltage pulses having values of predetermined amplitude and duration as determined by respective image pixel bit values generated by a raster image processor are applied, at a given pulse period, to the electrodes of the selected ejection channels. The part of the raster image corresponding to an ejection channel is scanned to determine the number of adjacent non-printing pixel periods prior to a pixel to be printed and, immediately prior to the printing of said pixel, a voltage pulse, having a value predetermined in accordance with the time, measured in units of the given pixel period, between the last pixel to be printed and said pixel to be printed, is applied to the ejection electrode.
摘要翻译：本发明涉及一种打印具有每排像素数量的二维位映象图像的方法，该打印头具有一排排出通道，并且每个排出通道具有在使用中施加电压的相关联的喷射电极。在打印期间，为了使打印头的所选择的喷射通道的流体排出大量，用于由光栅图像处理器生成的由各个图像像素位值确定的具有预定幅度和持续时间值的电压脉冲应用于给定的脉冲周期，到所选择的弹出通道的电极。扫描对应于排出通道的光栅图像的部分，以确定要打印的像素之前的相邻非打印像素周期的数量，并且在打印所述像素之前紧接着具有预定值的电压脉冲根据时间，以给定像素周期为单位，在要打印的最后一个像素和要打印的像素之间测量的时间被施加到喷射电极。

3. 发明授权

EP2465681B1 INKJET RECORDING DEVICE AND PRINTING HEAD 有权
标题翻译： INK STEEL记录设备和头部
公开(公告)号：EP2465681B1
公开(公告)日：2014-11-05
申请号：EP09848260.7
申请日：2009-08-11
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： HARADA, Nobuhiro , MIYAO, Akira , HORIKAWA, Koji , UMETSU, Hisashi , MORIAI, Takuya
IPC分类号： B41J2/075 , B41J2/09 , B41J2/085 , B41J2/095
CPC分类号： B41J2/085 , B41J2/075 , B41J2/09 , B41J2/095

4. 发明公开

EP2559557A2 Inkjet recording apparatus 有权
标题翻译：喷墨记录装置
公开(公告)号：EP2559557A2
公开(公告)日：2013-02-20
申请号：EP12005466.3
申请日：2012-07-26
申请人： Hitachi Industrial Equipment Systems Co., Ltd.
发明人： Moriai, Takuya , Harada, Nobuhiro , Kawano, Takashi
IPC分类号： B41J2/07
CPC分类号： B41J2/09 , B41J2/07 , B41J2/085 , B41J2002/022 , B41J2002/033
摘要： An inkjet recording apparatus includes an ink particle generation unit that makes a pressurized ink injected from a nozzle into particles, a charging unit that electrically charges the ink particle of those subjected to particulation, which corresponds to a dot to be printed, a polarizing unit that polarizes the electrically charged ink particle in a polarizing electric field, a collection unit that allows a gutter to collect the ink particle corresponding to the dot that is not printed, and a character forming unit that forms a character as a dot matrix on a printing object. A phase detection charging signal is applied to the ink particle that is not used for printing when forming the dot matrix character so as to detect an optimum charging timing in a process of forming the dot matrix character.
摘要翻译：本发明提供一种喷墨记录装置，其包括：墨滴生成单元，其使从喷嘴喷射的加压墨水成为粒子;充电单元，其对与要打印的点对应的微粒化的墨水粒子进行充电;偏振单元，使带电的墨水粒子在极化电场中极化;收集单元，其使得沟槽收集与未打印的点相对应的墨水粒子;以及字符形成单元，其在打印对象上形成作为点阵的字符。当形成点阵字符时，将相位检测充电信号施加到不用于打印的墨颗粒，以便在形成点阵字符的过程中检测最佳充电时间。

5. 发明授权

EP1832423B1 Verfahren und Vorrichtung zur Erhöhung der Tintentropfenanzahl in einem Tintentropfenstrahl eines kontinuierlich arbeitenden Tintenstrahldruckers 有权
标题翻译：用于增加在连续喷墨打印机的墨滴喷射的墨滴的数量的方法和装置
公开(公告)号：EP1832423B1
公开(公告)日：2010-09-08
申请号：EP06023788.0
申请日：2006-11-16
申请人： KBA-METRONIC AG
发明人： Pechtl, Klaus
IPC分类号： B41J2/02
CPC分类号： B41J2/085 , B41J2/02 , B41J2/07 , B41J2/115

6. 发明公开

EP2209636A1 ELECTROMECHANICAL CONVERTER FOR INK JET PRINTING 有权
标题翻译：机电转换器用于喷墨
公开(公告)号：EP2209636A1
公开(公告)日：2010-07-28
申请号：EP08846283.3
申请日：2008-11-06
申请人： Videojet Technologies, Inc.
发明人： LECHEHEB, Ammar , SMITH, Robert , TOMLIN, Matthew , KASSNER, Peter , STAMP, Michael, Jeffrey
IPC分类号： B41J2/01 , B41J2/025
CPC分类号： B41J2/03 , B41J2/085 , B41J2/12 , B41J2/1721 , B41J2/175 , B41J2/17546 , B41J2/17553 , B41J2002/022
摘要： A method of driving an electromechanical converter of a print head of a continuous inkjet printer, wherein the electromechanical converter is arranged to break up a continuous stream of ink into a plurality of drops. The method includes determining a modulation voltage to drive the electromechanical converter, at least a property of the modulation voltage being controlled to take into account movement of a break up point of the continuous stream of ink, and to ensure that in a characteristic of modulation voltage versus a property at least indicative of a break up point of the continuous stream of ink, the characteristic has a predetermined gradient, or a gradient related to this predetermined gradient; and driving the electromechanical converter at the determined modulation voltage.

7. 发明授权

EP1676643B1 Method for manufacturing pattern formed body 有权
标题翻译：一种用于生产带图案成形制品的方法
公开(公告)号：EP1676643B1
公开(公告)日：2008-08-20
申请号：EP05257445.6
申请日：2005-12-02
申请人： Dai Nippon Printing Co., Ltd.
发明人： Tsuchiya, Katsunori Dai Nippon Printing Co. Ltd. , Idegami, Masato Dai Nippon Printing Co. Ltd.
IPC分类号： B05D1/30
CPC分类号： B05C5/02 , B05B17/00 , B05C5/0225 , B05D1/007 , B05D1/26 , B41J2/035 , B41J2/06 , B41J2/085 , B41J2/09

8. 发明公开

EP1832423A2 Verfahren und Vorrichtung zur Erhöhung der Tintentropfenanzahl in einem Tintentropfenstrahl eines kontinuierlich arbeitenden Tintenstrahldruckers 有权
标题翻译：用于增加在连续喷墨打印机的墨滴喷射的墨滴的数量的方法和装置
公开(公告)号：EP1832423A2
公开(公告)日：2007-09-12
申请号：EP06023788.0
申请日：2006-11-16
申请人： KBA-METRONIC AG
发明人： Pechtl, Klaus
IPC分类号： B41J2/02
CPC分类号： B41J2/085 , B41J2/02 , B41J2/07 , B41J2/115
摘要： Die Erfindung betrifft ein Verfahren zur Erhöhung der Tintentropfenanzahl in einem Tintentropfenstrahl eines kontinuierlich arbeitenden Tintenstrahldruckers bei dem die Tintentropfen (11,12,13) von wenigstens zwei separat erzeugten Tintentropfenstrahlen (11a,12a,13a) zu einem Tintentropfenstrahl (14a) vereinigt werden, insbesondere derart, dass der vereinigte Tintentropfenstrahl (14a) die Tintentropfen (11,12,13) der jeweiligen separaten Tintentropfenstrahlen (11a,12a,13a) umfasst. Die Erfindung betrifft weiterhin eine Vorrichtung zur Erzeugung eines Tintentropfenstrahls eines kontinuierlich arbeitenden Tintenstrahldruckers, die wenigstens zwei Druckkammern (1,2,5) zur Erzeugung je eines separaten Tintentropfenstrahls (11a,12a,13a) mit elektrisch geladenen Tintentropfen (11,12,13) und eine Elektrodenanordnung (30, 31, 32 /41, 42, 43)) umfasst, mittels der die separaten Tintentropfenstrahlen (11a,12a,13a) zu einem Tintentropfenstrahl (14a) vereinigbar sind.
摘要翻译： u本喷墨打印机具有由具有由两个单独的发电机[1,2]产生两个流增加了液滴数的液滴被引导到在电极系统[30-32]那样将它们组合成一个流以在打印纸上产生影响。

9. 发明授权

EP1013424B1 Apparatus and method for controlling a charging voltage in ink jet printers 有权
标题翻译：装置和方法，用于控制在喷墨笔的充电电压
公开(公告)号：EP1013424B1
公开(公告)日：2007-09-12
申请号：EP99309534.8
申请日：1999-11-29
申请人： Eastman Kodak Company
发明人： Simon, Robert J. , Cleary, Joseph P.
IPC分类号： B41J2/085
CPC分类号： B41J2/085

10. 发明公开

EP1786629A2 METHOD FOR REDUCING PRINT-DENSITY VARIATIONS IN PRINTERS, PARTICULARLY IN INKJET PRINTERS 审中-公开
标题翻译： FOR打印分辨率差异打印机的还原方法，特别是在喷墨打印机
公开(公告)号：EP1786629A2
公开(公告)日：2007-05-23
申请号：EP05758912.9
申请日：2005-07-12
申请人： Jemtex Ink Jet Printing Ltd.
发明人： LIFSHITZ, Lior , NOSKO, Pavel
IPC分类号： B41J29/393 , B41J2/12
CPC分类号： B41J2/125 , B41J2/085 , B41J2/09 , B41J29/393
摘要： A method of reducing print-density variations in printers, particularly multi-deflection continuous-jet printers, including printing elements arrayed along the X-axis for printing on a substrate moving relative to the printing elements along the Y-axis. The method includes controlling the printer to print a test pattern having a plurality of strips extending along the X-axis, wherein the gray-level of each printed strip is the same along the X-axis, but varies from one strip to the next along the Y-axis; analyzing the printed test pattern to detect gray-level variations in the printed strips; preparing a density correction table of gray-level corrections for each X-coordinate; and controlling the printing elements in accordance with the density correction table to reduce the detected gray-level variations.

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