METHOD FOR REMOVING ELECTRIC CROSSTALK

    公开(公告)号:EP3144151B1

    公开(公告)日:2018-07-25

    申请号:EP16188616.3

    申请日:2016-09-13

    IPC分类号: B41J2/045

    摘要: A method of removing an electric crosstalk contribution is disclosed. This crosstalk exists in a monitoring signal from a monitored electro-mechanical transducer in a device comprising a plurality of electro-mechanical transducers which are driven by actuation signals so as to produce acoustic waves in an acoustic frequency range. The method comprises the steps of : (a) applying an actuation signal to at least one of the transducers other than the monitored transducer; (b) detecting the monitoring signal in a high frequency range outside of the acoustic frequency range; (c) deriving, from the detected monitoring signal, a number of parameters that characterize the electric crosstalk; and (d) using said parameters to calculate the electric crosstalk contribution in the acoustic frequency range.

    Printhead leak determination
    3.
    发明授权

    公开(公告)号:EP3062080B1

    公开(公告)日:2018-06-27

    申请号:EP15157009.0

    申请日:2015-02-27

    申请人: HP Scitex Ltd

    摘要: In some examples, a system includes a printhead including a printer fluid nozzle, an air valve in fluid communication with a channel of the nozzle to: (1) create back pressure in the channel when the air valve is closed and printer fluid is ejected through the nozzle and (2) release back pressure in the channel when the air valve is open, an ejector to eject printer fluid through the nozzle to form a meniscus of printer fluid in the channel when the air valve is closed, a pressure sensor to measure pressure within the channel, and an indicator in electrical communication with the pressure sensor. The indicator can, for example, indicate whether there is an air leak in the channel by determining whether the pressure in the channel is within a predetermined pressure range after a predetermined idle time following the formation of the meniscus in the nozzle.

    INK JET RECORDING APPARATUS
    5.
    发明公开
    INK JET RECORDING APPARATUS 审中-公开
    喷墨记录装置

    公开(公告)号:EP3281793A1

    公开(公告)日:2018-02-14

    申请号:EP15888547.5

    申请日:2015-12-22

    IPC分类号: B41J2/01 B41J2/07

    摘要: The purpose of the present invention is to provide an ink jet recording apparatus that improves printing quality when printing with a plurality of nozzles. The ink jet recording apparatus performs printing control of a plurality of nozzles using an encoder pulse output from an encoder attached to a conveying line, and is characterized by comprising: an input unit with which a printing character width is separately set for each of the plurality of nozzles; and a control unit that controls printing using a character width corresponding to input information from the input unit.

    摘要翻译: 本发明的目的是提供一种喷墨记录设备,其在用多个喷嘴进行打印时提高打印质量。 该喷墨记录装置使用从安装在输送线上的编码器输出的编码器脉冲来进行多个喷嘴的印刷控制,其特征在于,具备:输入部,其针对多个 喷嘴; 以及控制单元,其使用与来自输入单元的输入信息相对应的字符宽度来控制打印。

    LIQUID DROPLET DISCHARGING CONTROL DEVICE, LIQUID DROPLET DISCHARGING CONTROL METHOD, AND LIQUID DROPLET DISCHARGING APPARATUS
    6.
    发明公开
    LIQUID DROPLET DISCHARGING CONTROL DEVICE, LIQUID DROPLET DISCHARGING CONTROL METHOD, AND LIQUID DROPLET DISCHARGING APPARATUS 审中-公开
    液体滴落排出控制装置,液体滴落排出控制方法及液体滴落排出装置

    公开(公告)号:EP3225407A1

    公开(公告)日:2017-10-04

    申请号:EP17163300.1

    申请日:2017-03-28

    IPC分类号: B41J2/21 H04N1/60

    摘要: There is a provided a liquid droplet discharging control device which causes a liquid droplet discharging apparatus including a head, in which a plurality of nozzles are arranged in a predetermined direction, to perform printing and which is capable of executing a nearby compensation process in which, on the basis of a dot position on which a predetermined nozzle for black ink forms a dot, a nearby nozzle that forms a dot in the vicinity of the dot forms a dot and executing a composite compensation process in which dots of a plurality of different colors are overlap-printed on a predetermined dot position. The liquid droplet discharging control device includes a parameter acquiring unit that acquires parameters corresponding to the degree of liquid spreading toward a periphery after adhesion of a liquid droplet to a medium, and a compensation switching unit that switches between execution of the nearby compensation process and execution of the composite compensation process on the basis of the parameters.

    摘要翻译: 提供了一种液滴排出控制装置,其使得包括其中多个喷嘴沿预定方向排列的头的液滴排出装置执行打印并且能够执行附近的补偿处理,其中, 基于黑色墨用规定的喷嘴形成点的点位置,在该点附近形成点的附近喷嘴形成点,进行合成补偿处理,在该合成补偿处理中,将多种不同颜色的点 重叠印刷在预定的点位置上。 液滴排出控制装置具有参数取得部和补偿切换部,所述参数取得部取得与向介质滴下液体后向周边扩散的液体的液体的程度相对应的参数,所述补偿切换部切换所述附近的补偿处理的执行和执行 在参数的基础上进行复合补偿过程。

    FLUID EJECTION DEVICE
    7.
    发明公开
    FLUID EJECTION DEVICE 审中-公开
    流体喷射装置

    公开(公告)号:EP3212421A1

    公开(公告)日:2017-09-06

    申请号:EP14905196.3

    申请日:2014-10-31

    IPC分类号: B41J2/175 B41J2/135

    摘要: A fluid ejection device includes a fluid slot, a plurality of fluid ejection chambers communicated with the fluid slot, a plurality of drop ejecting elements one of each within one of the fluid ejection chambers, a plurality of fluid circulation channels each communicated with the fluid slot and one or more of the fluid ejection chambers, and a plurality of fluid circulating elements each communicated with one or more of the fluid circulation channels. The fluid circulating elements are to provide intermittent circulation of fluid from the fluid slot through the one or more of the fluid circulation channels and the one or more of the fluid ejection chambers.

    摘要翻译: 流体喷射装置包括流体槽,与流体槽连通的多个流体喷射室,多个液滴喷射元件中的每一个内的液滴喷射元件,多个流体循环通道,每个流体循环通道均与流体槽 以及一个或多个流体喷射室,以及多个流体循环元件,每个流体循环元件都与一个或多个流体循环通道连通。 流体循环元件将提供来自流体槽的流体的间歇循环,流体通过一个或多个流体循环通道和一个或多个流体喷射室。

    PRINTING APPARATUS AND PRINTING METHOD
    9.
    发明公开
    PRINTING APPARATUS AND PRINTING METHOD 审中-公开
    印刷设备和印刷方法

    公开(公告)号:EP3075549A1

    公开(公告)日:2016-10-05

    申请号:EP16161527.3

    申请日:2016-03-22

    IPC分类号: B41J2/21

    摘要: A printing apparatus is provided with a transport mechanism section that transports work, a printing mechanism section that has multiple nozzle groups, which perform printing by discharging an ink onto the work as liquid droplets, and control section that controls the actions of the transport mechanism section and the printing mechanism section. In addition, the printing mechanism section includes a first nozzle row that forms a first printing region, a second nozzle row that forms a second printing region, and an overlapping section in which the first nozzle row and the second nozzle row overlap. Further, the control section prohibits overlapping of the first printing region with the second printing region on the work when forming the third printing region.

    摘要翻译: 印刷装置具备输送作业的输送机构部,具有多个喷嘴组的印刷机构部,该多个喷嘴组通过将油墨作为液滴喷出到工件上而进行印刷,控制部控制输送机构部的动作 和打印机构部分。 另外,打印机构部分包括形成第一打印区域的第一喷嘴行,形成第二打印区域的第二喷嘴行以及第一喷嘴行和第二喷嘴行重叠的重叠部分。 此外,当形成第三印刷区域时,控制部分禁止第一印刷区域与第二印刷区域在工件上重叠。