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1. 发明授权

EP2875953B1 Printhead control 失效
标题翻译：打印头控制器
公开(公告)号：EP2875953B1
公开(公告)日：2016-08-24
申请号：EP13193724.5
申请日：2013-11-20
申请人： Tonejet Limited
发明人： Clippingdale, Andrew John , Bacon, Robin Timothy
IPC分类号： B41J2/06 , B41J2/21 , B41J2/205
CPC分类号： B41J2/2103 , B41J2/06 , B41J2/2052 , B41J2/2132 , B41J2002/063

2. 发明授权

EP2666636B1 Printhead control 失效
公开(公告)号：EP2666636B1
公开(公告)日：2018-08-08
申请号：EP12169098.6
申请日：2012-05-23
申请人： Tonejet Limited
发明人： Clippingdale, Andrew John , Bacon, Robin Timothy
IPC分类号： B41J2/15 , B41J2/155 , B41J2/06
CPC分类号： B41J2/04541 , B41J2/04593 , B41J2/06 , B41J2/15 , B41J2/155 , B41J2202/20
摘要： A method of printing a two-dimensional bit-mapped image having a number of pixels per row for printing is disclosed. The method and apparatus use either a plurality of overlapping printheads (300) or a printhead or plurality of printheads indexed through overlapping positions. The or each printhead has a row of ejection channels (301), each of which has associated ejection electrodes to which a voltage is applied to cause particulate concentrations to be formed from within a body of printing fluid. In order to cause volumes of charged particulate concentrations of one of a number of predetermined volume sizes to be ejected as printed droplets from selected ejection channels of the overlapping printheads, voltage pulses (V E ) of respective predetermined amplitude and duration, as determined by respective image pixel bit values, are applied to the electrodes of the selected ejection channels. For each row of the image, the values of the voltage pulses to be applied to the overlapping printheads to form pixels printed by overlapped ejection channels are adjusted in dependence on the position of the pixel within an overlapped region of the printheads and in dependence on the predetermined volume size of the pixel.

3. 发明公开

EP2875953A1 Printhead control 失效
标题翻译： Druckkopfsteuerung
公开(公告)号：EP2875953A1
公开(公告)日：2015-05-27
申请号：EP13193724.5
申请日：2013-11-20
申请人： Tonejet Limited
发明人： Clippingdale, Andrew John , Bacon, Robin Timothy
IPC分类号： B41J2/06 , B41J2/21 , B41J2/205
CPC分类号： B41J2/2103 , B41J2/06 , B41J2/2052 , B41J2/2132 , B41J2002/063
摘要： A method of printing a two-dimensional bit-mapped image having a number of pixels per row for printing using a plurality of overlapping printheads or a printhead or printheads indexed through overlapping positions, the or each printhead having a row of ejection channels, each ejection channel having associated ejection electrodes, the method comprising: applying a voltage to the ejection channels sufficient to cause concentration of particles in the printing fluid at the ejection channels, applying voltage pulses of respective predetermined amplitude and/or duration, as determined by respective image pixel bit values, to the electrodes of the selected ejection channels in order to cause volumes of printing fluid to be ejected from selected ejection channels of the overlapping printheads, thereby forming a pixel of a predetermined optical density, adjusting, for each row of the image, the values of the voltage pulses to be applied to the overlapping printheads to form pixels printed by overlapped ejection channels in dependence on the position of the pixel within an overlapped region of the printheads and in dependence on the predetermined optical density of the pixel, wherein, for at least one pixel in the overlapped region, the total volume of ink ejected by the overlapped channels is greater than that required if that pixel were formed by a single ejection channel.
摘要翻译：使用多个重叠的打印头或通过重叠位置索引的打印头或打印头打印具有每行数量的像素的二维位图图像的方法，该打印头或每个打印头具有一排排出通道，每个喷射通道具有相关联的喷射电极，所述方法包括：向喷射通道施加足以使喷射通道处的打印流体中的颗粒浓缩的电压，施加由各个图像像素确定的各个预定幅度和/或持续时间的电压脉冲以使得打印流体的体积从重叠的打印头的选定的喷射通道中排出，从而形成预定的光密度的像素，调整图像的每一行，施加到重叠打印头的电压脉冲的值以形成由其打印的像素取决于打印头的重叠区域内的像素的位置并且依赖于像素的预定光密度，重叠的喷射通道，其中，对于重叠区域中的至少一个像素，喷射的墨水的总体积如果该像素由单个喷射通道形成，则重叠通道大于所需的通道。

4. 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。

5. 发明公开

EP2708363A1 Printhead calibration and printing 审中-公开
标题翻译：打印头校准和打印
公开(公告)号：EP2708363A1
公开(公告)日：2014-03-19
申请号：EP12184681.0
申请日：2012-09-17
申请人： Tonejet Limited
发明人： Clippingdale, Andrew John , Bacon, Robin Timothy , Conrade, Ewan Hendrik , Lecheheb, Ammar , Sharp, John Lawton , Woolaston, Jesse David
IPC分类号： B41J2/21 , B41J29/393
CPC分类号： B41J2/12 , B41J2/035 , B41J2/205 , B41J2/2103 , B41J2/2128 , B41J2/2132 , B41J2/2139 , B41J2/2142 , B41J29/393 , B41J2002/022
摘要： A method of calibrating a printhead, for printing two-dimensional bit-mapped images having a number of pixels per row, is disclosed for printheads (1) having a row of printing channels (5). During printing, in order to cause volumes of charged particulate concentrations of one of a number of predetermined volume sizes to be ejected as printed droplets from selected printing channels of the printhead, control pulse values of respective predetermined amplitude and duration, as determined by respective image pixel bit values, are applied to the selected printing channels. The calibration method comprises providing an image (50) that causes each channel of the printhead to be driven with the same pulse value, and printing one or more test prints of the image. The pulse value for all channels is then varied (101) in a set of defined steps within the test print or between the test prints and the optical density of the test print or test prints measured (102) at positions arranged on a grid (51) to obtain data of print density and pulse value at positions across the printhead. A desired tone reproduction curve (52) is pre-selected for the print process represented by optical density versus image grey level. Then pulse values are calculated (104) from the measured test print or test prints that are estimated to produce the desired values of print density corresponding to selected values of image grey level and which may include non-printing pulse values, and the pulse value for each of said positions across the printhead for each of said image grey levels is recorded in memory (105,106).
摘要翻译：公开了一种校准打印头的方法，用于打印具有一行打印通道（5）的打印头（1），该打印头用于打印每行具有多个像素的二维位映像图像。在打印期间，为了使多个预定体积尺寸中的一个的带电颗粒浓度的体积从打印头的选定打印通道作为打印的墨滴喷射，各个预定幅度和持续时间的控制脉冲值由相应图像确定像素比特值被应用于选择的打印通道。校准方法包括提供使得打印头的每个通道以相同脉冲值被驱动并且打印图像的一个或多个测试打印的图像（50）。然后在测试印刷品内或测试印刷品与测试印刷品或测试印刷品的光密度之间的所有通道的脉冲值在一组限定的步骤中变化（101），测试印刷品或测试印刷品在布置在格栅51上的位置处测量（102））以获得打印头上的打印密度和脉冲值的数据。针对由光学浓度对图像灰度级表示的印刷过程预先选择期望的色调再现曲线（52）。然后，根据测量的测试印刷或测试印刷来计算（104）脉冲值，所述测量印刷或测试印刷被估计为产生与图像灰度级的所选值相对应的并且可以包括非印刷脉冲值的期望的印刷密度值，以及记录在存储器（105,106）中的用于每个所述图像灰度级的穿过打印头的每个所述位置。

6. 发明公开

EP2666636A1 Printhead control 失效
标题翻译： Druckkopfsteuerung
公开(公告)号：EP2666636A1
公开(公告)日：2013-11-27
申请号：EP12169098.6
申请日：2012-05-23
申请人： Tonejet Limited
发明人： Clippingdale, Andrew John , Bacon, Robin Timothy
IPC分类号： B41J2/15 , B41J2/155 , B41J2/06
CPC分类号： B41J2/04541 , B41J2/04593 , B41J2/06 , B41J2/15 , B41J2/155 , B41J2202/20
摘要： A method of printing a two-dimensional bit-mapped image having a number of pixels per row for printing is disclosed. The method and apparatus use either a plurality of overlapping printheads (300) or a printhead or plurality of printheads indexed through overlapping positions. The or each printhead has a row of ejection channels (301), each of which has associated ejection electrodes to which a voltage is applied to cause particulate concentrations to be formed from within a body of printing fluid. In order to cause volumes of charged particulate concentrations of one of a number of predetermined volume sizes to be ejected as printed droplets from selected ejection channels of the overlapping printheads, voltage pulses (V E ) of respective predetermined amplitude and duration, as determined by respective image pixel bit values, are applied to the electrodes of the selected ejection channels. For each row of the image, the values of the voltage pulses to be applied to the overlapping printheads to form pixels printed by overlapped ejection channels are adjusted in dependence on the position of the pixel within an overlapped region of the printheads and in dependence on the predetermined volume size of the pixel.
摘要翻译：公开了一种打印具有每行数目的像素数目的二维位映象图像进行打印的方法。该方法和装置使用通过重叠位置索引的多个重叠的打印头（300）或打印头或多个打印头。该打印头或每个打印头具有一排喷射通道（301），每排喷射通道具有相关联的喷射电极，施加电压以使得从印刷液体内形成颗粒浓度。为了使多个预定体积尺寸之一的带电微粒浓度的体积作为印刷液滴从重叠的打印头的选定的喷射通道中排出，由相应的图像确定的各个预定的振幅和持续时间的电压脉冲（VE）像素位值被施加到所选择的喷射通道的电极。对于图像的每一行，将根据重叠区域内的像素的位置，根据打印头的重叠区域来调整要施加到重叠的打印头以形成由重叠的喷射通道打印的像素的电压脉冲的值像素的预定体积大小。

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