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1. 发明授权

US6102525A Method and apparatus for controlling the print image density in a direct electrostatic printing apparatus 失效
标题翻译：用于在直接静电印刷装置中控制打印图像浓度的方法和装置
公开(公告)号：US6102525A
公开(公告)日：2000-08-15
申请号：US44479
申请日：1998-03-19
申请人： Tomas Jonsson
发明人： Tomas Jonsson
IPC分类号： B41J2/385 , B41J2/415 , G03G15/05 , G03G15/34 , B41J2/06
CPC分类号： G03G15/346 , B41J2/4155 , G03G2215/0187 , G03G2217/0025
摘要： A direct electrostatic printing device and method for printing an image to an information carrier with increased density harmonization. By continuously keeping track of the amount of pigment particles each aperture has available and thereafter using this information and the desired print density to control the control electrodes of the individual apertures, a harmonization of the printed density from different apertures is attained.
摘要翻译：一种直接静电印刷装置和方法，用于以更高的密度协调将图像打印到信息载体上。通过连续跟踪每个孔可用的颜料颗粒的量，此后使用该信息和期望的打印浓度来控制各个孔的控制电极，可以实现来自不同孔的印刷密度的协调。

2. 发明授权

US6081283A Direct electrostatic printing method and apparatus 失效
标题翻译：直接静电印刷方法和装置
公开(公告)号：US6081283A
公开(公告)日：2000-06-27
申请号：US44480
申请日：1998-03-19
申请人： Tomas Jonsson
发明人： Tomas Jonsson
IPC分类号： B41J2/385 , B41J2/415 , G03G15/05 , B41J2/06
CPC分类号： B41J2/4155
摘要： A direct electrostatic printing device and method for printing an image to an information carrier with increased density harmonization. This is attained by measuring the behavior of the apertures and subsequently adjusting the control parameters of at least the diverging apertures. The measurement of the behaviour of the apertures is suitably performed by scanning a known print sample with a predetermined density. The scanned values are inverted around a predetermined value for which no compensation is done to create a compensation function. At least the apertures which have a behavior which diverges from a predetermined behaviour are compensated according to the compensation function, thereby enabling an increased density harmonization. The compensation function can preferably be signal processed by, for example, a low pass filtering.
摘要翻译：一种直接静电印刷装置和方法，用于以更高的密度协调将图像打印到信息载体上。这通过测量孔的行为并随后调节至少发散孔的控制参数来实现。通过以预定的密度扫描已知的打印样品来适当地执行孔径的行为的测量。扫描的值在预定值周围进行反转，对于该预定值不进行补偿以产生补偿功能。至少根据补偿功能补偿具有从预定行为偏离的行为的孔，从而能够增加密度的协调。补偿功能可以优选地通过例如低通滤波来进行信号处理。

3. 发明授权

US6074045A Printhead structure in an image recording device 失效
标题翻译：图像记录装置中的打印头结构
公开(公告)号：US6074045A
公开(公告)日：2000-06-13
申请号：US34877
申请日：1998-03-04
申请人： Karin V. Bergman , Anders G P Ingelhag
发明人： Karin V. Bergman , Anders G P Ingelhag
IPC分类号： B41J2/385 , B41J2/415
CPC分类号： B41J2/4155
摘要： An image recording apparatus includes a toner particle source for delivering charged toner particles to an image receiving medium. The image recording apparatus further includes a printhead structure arranged between the toner particle source and the image receiving medium to modulate a transport of toner particles from the particle source to the image receiving medium. The printhead structure includes a substrate of electrically insulating material having a first surface facing the toner particle source and a second surface facing the image receiving member. A first cover layer of electrically insulating material is arranged on the first surface of the substrate. A plurality of apertures are arranged through the printhead structure. A first printed circuit including control electrodes is arranged between the substrate and the first cover layer to control the transport of toner through the apertures and a spacer layer of wear-resistant material at least partially coats the first cover layer to space the first cover layer from the toner particles on the particle source.
摘要翻译：图像记录装置包括用于将带电调色剂颗粒输送到图像接收介质的调色剂颗粒源。图像记录装置还包括布置在调色剂颗粒源和图像接收介质之间的打印头结构，以调节调色剂颗粒从颗粒源到图像接收介质的输送。打印头结构包括具有面向调色剂颗粒源的第一表面和面向图像接收构件的第二表面的电绝缘材料的基板。电绝缘材料的第一覆盖层布置在基板的第一表面上。多个孔被布置成穿过打印头结构。包括控制电极的第一印刷电路布置在基板和第一覆盖层之间以控制调色剂通过孔的传送，并且耐磨材料的间隔层至少部分地涂覆第一覆盖层以使第一覆盖层从颗粒源上的调色剂颗粒。

4. 发明授权

US6027206A Method and apparatus for cleaning the printhead structure during direct electrostatic printing 失效
标题翻译：用于在直接静电印刷期间清洁打印头结构的方法和设备
公开(公告)号：US6027206A
公开(公告)日：2000-02-22
申请号：US994916
申请日：1997-12-19
申请人： Bengt Bern , Bo Rydstrom
发明人： Bengt Bern , Bo Rydstrom
IPC分类号： B41J2/385 , B41J2/415 , G03G15/34 , B41J2/06
CPC分类号： B41J2/4155 , G03G15/346 , G03G2215/0187 , G03G2217/0025
摘要： An image recording device and method for recording an image to an information carrier. An intermediate image receiving member has a first face and a second face. The printhead structure is placed inbetween a pigment particle source and the first face of the intermediate image receiving member. The image recording device comprises a pressure changing means which can create a pressure difference on the side of a second face of the intermediate image receiving member in the vicinity of apertures used for pigment particle control. The intermediate image receiving member comprises a cleaning area for cleaning purposes and a separate image area intended for reception of pigment particles for formation of a pigment image thereon. The cleaning area includes at least one slot between the first face and the second face of the intermediate image receiving member being intended for transferring a pressure difference through the intermediate image receiving member to thereby, in cooperation with the pressure changing means in the vicinity of the apertures, be able to dislodge pigment agglomeration for the purpose of cleaning the apertures.
摘要翻译：一种用于将图像记录到信息载体的图像记录装置和方法。中间图像接收构件具有第一面和第二面。打印头结构被放置在颜料颗粒源和中间图像接收构件的第一面之间。图像记录装置包括压力改变装置，其可以在用于颜料颗粒控制的孔附近在中间图像接收构件的第二面的侧面上产生压力差。中间图像接收构件包括用于清洁目的的清洁区域和用于接收用于在其上形成颜料图像的颜料颗粒的单独图像区域。清洁区域包括在中间图像接收构件的第一面和第二面之间的至少一个槽，用于通过中间图像接收构件传递压力差，从而与压力改变装置配合孔，能够去除颜料附聚以清洁孔。

5. 发明授权

US5812160A Image forming apparatus with improved assemblies for tore carrier, toner passage control device and backing electrode 失效
标题翻译：图像形成装置，具有用于撕开载体，调色剂通道控制装置和背衬电极的改进的组件
公开(公告)号：US5812160A
公开(公告)日：1998-09-22
申请号：US734100
申请日：1996-10-21
申请人： Takasumi Wada , Masayuki Tone , Keiji Itsukushima , Hidemasa Aiba , Ove Larson
发明人： Takasumi Wada , Masayuki Tone , Keiji Itsukushima , Hidemasa Aiba , Ove Larson
IPC分类号： B41J2/415 , G03G15/34 , B41J2/06 , B41J25/308
CPC分类号： G03G15/346 , B41J2/4155 , G03G2217/0025
摘要： An apparatus for printing directly on plain paper, utilizing an arrayed control grid having a plurality of toner slots disposed in a space between a toner carrier and a backing electrode on which a paper travels. The backing electrode formed in a flat plate facing paralleledly to the control grid assures a uniform electrostatic field in an interspace therebetween. A unit body associated with the toner carrier and the control grid makes the interspace open when the unit body is removed from the apparatus body which offers an easy access to the interspace and the members as well. A resiliently suspended backing electrode with a spacer, a restriction member etc., assures the interspace constant. Other unit bodies including the control grid associated with the backing electrode and others are also disclosed.
摘要翻译：一种直接在普通纸上打印的装置，利用排列的控制栅格，其具有多个调色剂槽，该多个调色剂槽设置在调色剂载体和纸上行进的背衬电极之间的空间中。形成在与控制栅格并排的平板中的背衬电极确保了它们之间的间隙中的均匀的静电场。与调色剂载体和控制栅格相关联的单元主体当单元主体从设备主体移除时，使空隙打开，这提供了容易进入间隙和构件的功能。具有间隔件，限制构件等的弹性悬挂背衬电极确保空隙恒定。还公开了包括与背衬电极等相关联的控制栅格的其它单元体。

6. 发明授权

US5515084A Method for non-impact printing utilizing a multiplexed matrix of controlled electrode units and device to perform method 失效
标题翻译：利用受控电极单元的复用矩阵和装置执行方法的非冲击打印方法
公开(公告)号：US5515084A
公开(公告)日：1996-05-07
申请号：US63902
申请日：1993-05-18
申请人： Ove Larson
发明人： Ove Larson
IPC分类号： B41J2/415 , B41J2/06 , G01D15/06
CPC分类号： B41J2/4155
摘要： Method and device for high quality printing with substantially reduced cross-coupling while reducing the manufacturing cost of printers that use a matrix of individual control electrode units by connecting individual control electrode segments in series to reduce the number of electronic drive circuits. An information carrier such as paper is placed between a back electrode and an electrode matrix both of which are connected to voltage sources. Voltage sources connected to the control electrode unit matrix at least partially open and close passages through the electrode matrix; charged pigment particles attracted from a particle carrier through the open passages are deposited on the information carrier to form visible images.
摘要翻译：用于高质量印刷的方法和装置，其具有显着降低的交叉耦合，同时通过串联连接各个控制电极段来减少使用单个控制电极单元的矩阵的打印机的制造成本，以减少电子驱动电路的数量。诸如纸之类的信息载体被放置在背电极和电极矩阵之间，两者都连接到电压源。连接到控制电极单元矩阵的电压源至少部分地打开和关闭通过电极矩阵的通道; 通过开放通道从颗粒载体吸引的带电颜料颗粒沉积在信息载体上以形成可见图像。

7. 发明授权

US5446478A Method and device for cleaning an electrode matrix of an electrographic printer 失效
标题翻译：清洗电印机电极基体的方法和装置
公开(公告)号：US5446478A
公开(公告)日：1995-08-29
申请号：US781208
申请日：1991-12-06
申请人： Ove Larson
发明人： Ove Larson
IPC分类号： B41J2/385 , B41J2/415 , B41J29/17 , G03G15/05 , G03G15/34 , G03G17/00 , G06K15/14 , G01D15/06
CPC分类号： G03G15/346 , B41J2/4155 , G03G2217/0025
摘要： A method and device for improving the printing performance of electrographic printers, in which a latent electrical charge pattern of electric signals is produced by an electrode matrix or the like, which temporarily produces electrical fields for attraction of pigment particles toward an information carrier. The electrodes of the electrode matrix are exposed, during at least a portion of the time between the printing of subsequent paper sheets, to a cleaning force which removes the pigment particles from the electrode matrix.
摘要翻译： PCT No.PCT / SE90 / 00394 Sec。 371 1991年12月6日第 102（e）日期1991年12月6日PCT提交1990年6月7日PCT公布。公开号WO90 / 14959 日期1990年12月13日。一种用于改善电印机的打印性能的方法和装置，其中通过电极矩阵等产生电信号的潜电荷图案，其暂时产生吸引颜料颗粒的电场朝向信息载体。在后续纸张的印刷之间的至少一部分时间内，电极基体的电极暴露于从电极基体除去颜料颗粒的清洁力。

8. 发明授权

US5374949A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5374949A
公开(公告)日：1994-12-20
申请号：US97323
申请日：1993-07-26
申请人： Takasumi Wada , Masayuki Tone , Hidemasa Aiba , Keiji Itsukushima , Ove Larson
发明人： Takasumi Wada , Masayuki Tone , Hidemasa Aiba , Keiji Itsukushima , Ove Larson
IPC分类号： B41J2/415 , G03G15/34 , G01D15/06
CPC分类号： B41J2/4155 , G03G15/346
摘要： An apparatus and method for printing directly on plain paper, utilizing an arrayed control grid having a plurality of toner slots. An alternating electrostatic field in a space between a toner carrier and a backing electrode gives toner a vibrational motion to prevent a toner clog at the slot. The field is also formed to repel the clogged toner back to the toner carrier, or to fall it down on a paper on the backing electrode during no print is performed to clean the control grid. A constitution of conductive and dielectric materials for the members assures to form the field.
摘要翻译：一种利用具有多个调色剂槽的排列控制栅格直接在普通纸上打印的设备和方法。在调色剂载体和背衬电极之间的空间中的交替静电场给调色剂提供振动，以防止调色剂堵塞槽。该场也被形成为在没有执行打印以清洁控制网格的同时将阻塞的调色剂排斥回到调色剂载体上，或者将其落在背衬电极上的纸上。用于构件的导电和介电材料的构造确保形成场。

9. 发明授权

US5235354A Method for improving the printing quality and repetition accuracy of electrographic printers and a device for accomplishing the method 失效
标题翻译：提高打印质量和重复印刷机精度的方法及其方法
公开(公告)号：US5235354A
公开(公告)日：1993-08-10
申请号：US781265
申请日：1991-12-06
申请人： Ove Larson
发明人： Ove Larson
IPC分类号： B41J2/385 , B41J2/415 , B41J29/17 , G03G15/05 , G03G15/34 , G03G17/00 , G06K15/14
CPC分类号： G03G15/346 , B41J2/4155 , G03G2217/0025
摘要： Method and device to improve printing quality and the repetition accuracy of electrographical printers, in which are produced a latent electric charge pattern of electrical signals by means of an electrode matrix or the like, which respectively opens and closes passages between electrodes for exposing electric fields for attraction of pigment particles (11) against an information carrier (7). The electrodes (1,2) of the electrode matrix in the area about one or several open passages (3) are screened electrostatically against closed passages, by means of at least two electrically isolated electrodes (1,2).
摘要翻译： PCT No.PCT / SE90 / 00398 Sec。 371 1991年12月6日第 102（e）日期1991年12月6日PCT提交1990年6月7日PCT公布。 WO90 / 14960 PCT出版物日期1990年12月13日。提高印刷质量的方法和装置，以及通过电极矩阵等产生电信号的潜电荷图案的打印机的重复精度，其分别打开和关闭通道用于暴露用于吸引颜料颗粒（11）的电场的电极抵靠信息载体（7）。通过至少两个电隔离电极（1,2），在大约一个或几个开放通道（3）的区域中的电极基体的电极（1,2）被静电屏蔽到闭合通道。

10. 发明授权

US5984456A Direct printing method utilizing dot deflection and a printhead structure for accomplishing the method 失效
标题翻译：使用点偏转的直接打印方法和用于实现该方法的打印头结构
公开(公告)号：US5984456A
公开(公告)日：1999-11-16
申请号：US759481
申请日：1996-12-05
申请人： Bengt Bern
发明人： Bengt Bern
IPC分类号： B41J2/385 , B41J2/415 , G03G15/34 , B41J2/06
CPC分类号： B41J2/4155 , G03G15/346 , G03G2217/0025
摘要： A printhead structure and a method are used in direct electrostatic printing wherein streams of charged toner particles from a source of toner particles are directed onto an image carrier, such as a sheet of paper. A first set of print electrodes surround apertures through which the streams of toner particles flow. Voltages are selectively applied to the print electrodes to control the flow of toner particles through the respective apertures. A set of deflection electrodes are also associated with the apertures. Deflection voltages from at least one deflection voltage source are applied to the deflection electrodes to increase the convergence of the toner particles onto the information carrier and also to control the trajectories of the toner particles onto predetermined dot locations on the information carrier so that each aperture may provide toner particles to multiple lateral locations on the information carrier.
摘要翻译：打印头结构和方法用于直接静电印刷，其中来自调色剂颗粒源的带电调色剂颗粒的流被引导到诸如一张纸的图像载体上。第一组打印电极围绕着调色剂颗粒流流过的孔。选择性地将电压施加到打印电极以控制调色剂颗粒通过相应的孔的流动。一组偏转电极也与孔相关联。来自至少一个偏转电压源的偏转电压被施加到偏转电极以增加调色剂颗粒在信息载体上的会聚，并且还将调色剂颗粒的轨迹控制在信息载体上的预定点位置上，使得每个孔可以向信息载体上的多个横向位置提供调色剂颗粒。

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