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    Direct electrostatic printing device (Dep) and printhead structure with low current flow between shield and control electrodes
    3.
    发明授权
    Direct electrostatic printing device (Dep) and printhead structure with low current flow between shield and control electrodes 失效
    直接静电印刷设备（Dep）和打印头结构，在屏蔽和控制电极之间具有低电流流动

    公开(公告)号：US5889540A

    公开(公告)日：1999-03-30

    申请号：US574775

    申请日：1995-12-19

    申请人： Jacques Leonard ,  Guido Desie

    发明人： Jacques Leonard ,  Guido Desie

    IPC分类号： B41J2/385 ,  B41J2/415 ,  G03G15/05 ,  B41J2/06 ,  B41J2/39 ,  B41J2/395

    CPC分类号： B41J2/4155

    摘要： An apparatus for direct electrostatic printing includes a back electrode and a printhead structure having a plastic insulating layer and printing apertures arranged therein. Individual control electrodes are combined with the printing apertures on a first side of the insulating layer, and a shield electrode is combined with the printing apertures on a second side of the insulating layer. A toner delivery apparatus is also included for delivering a cloud of dry toner particles in the vicinity of the printing apertures. The printing apertures are constructed and arranged such that, when applying a potential difference of 200V between the shield electrode and each individual control electrode, a current of no more that 50 .mu.A flows from each individual control electrode to the corresponding shield electrode through the corresponding printing aperture. Methods for forming the printing apertures in such a printhead are also disclosed.

    摘要翻译： 用于直接静电印刷的设备包括背面电极和具有塑料绝缘层和布置在其中的印刷孔的打印头结构。 单独的控制电极与绝缘层的第一侧上的打印孔组合，并且屏蔽电极与绝缘层的第二侧上的打印孔结合。 还包括调色剂输送装置，用于在打印孔附近传送干燥的调色剂颗粒云。 打印孔被构造和布置成使得当在屏蔽电极和每个单独的控制电极之间施加200V的电位差时，不超过50μA的电流通过相应的从各个控制电极流到对应的屏蔽电极 打印孔径。 还公开了在这种打印头中形成打印孔的方法。

    Dry toner for direct electrostatic printing (DEP)
    4.
    发明授权
    Dry toner for direct electrostatic printing (DEP) 失效
    直接静电印刷干粉（DEP）

    公开(公告)号：US5633110A

    公开(公告)日：1997-05-27

    申请号：US554857

    申请日：1995-11-07

    申请人： Guido Desie ,  Serge Tavernier

    发明人： Guido Desie ,  Serge Tavernier

    IPC分类号： G03G9/08 ,  G03G15/05 ,  G03G15/34 ,  G03G15/06 ,  G01D15/06

    CPC分类号： G03G15/346 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827

    摘要： A method for direct electrostatic printing (DEP) on an intermediate substrate or on a final substrate is provided, using a device that comprises a back electrode (105), a printhead structure (106) comprising a control electrode in combination with apertures (107), and a toner delivery means (101) presenting a cloud (104) of dry toner particles in the vicinity of said apertures (107), characterised in that(i) the toner particles have as topological criterium that the ratio of the length of the long axis of the projected microscopic image of said particles to the length of the short axis, is between 1.00 and 1.40 and(ii) the toner particles after addition of 0.5% by weight of fumed hydrophobic silica having a specific surface area of 260 m.sup.2 /g show a ratio of apparent density (.rho..sub.app) over real density (.rho..sub.real) ##EQU1##

    摘要翻译： 使用包括背电极（105）的装置，包括与孔（107）组合的控制电极的打印头结构（106）的设备，提供在中间基板或最终基板上的直接静电印刷（DEP）的方法， ，以及在所述孔（107）附近呈现干燥调色剂颗粒云（104）的调色剂输送装置（101），其特征在于（i）调色剂颗粒具有如下拓扑标准： 所述颗粒的投影显微图像长轴的长轴在1.00和1.40之间，和（ii）调色剂颗粒在加入0.5重量％比表面积为260平方米/平方米的热解疏水二氧化硅后， g显示表观密度（rho app）与实际密度（rho real）的比值

    Dotsize control fluid for radiation curable ink-jet printing process
    5.
    发明授权
    Dotsize control fluid for radiation curable ink-jet printing process 有权
    用于辐射固化喷墨印刷工艺的多孔控制流体

    公开(公告)号：US07575314B2

    公开(公告)日：2009-08-18

    申请号：US11280929

    申请日：2005-11-16

    申请人： Guido Desie ,  Dirk Quintens

    发明人： Guido Desie ,  Dirk Quintens

    IPC分类号： G01D11/00

    CPC分类号： C09D11/101

    摘要： A radiation curable ink-jet printing process is disclosed, exhibiting consistent image quality on a wide variety of different ink-receivers. The ink-jet printing process includes the steps of: a) providing an ink-receiver; b) providing a surface layer on at least a portion of the ink-receiver with a dotsize control fluid; c) jetting at least one radiation curable ink-jet ink droplet to the surface layer on the ink-receiver; characterized in that the dotsize control fluid contains a surfactant, a film forming polymeric resin and an inorganic filler, wherein the ratio P/F is greater than 3.0, with P being the weight % of film forming polymeric resin and F being the weight % of inorganic filler, both based on the total weight of the dotsize control fluid, and the surfactant is present in the surface layer in the range of 0.1 to 20% by weight based on the total dry weight of the surface layer.

    摘要翻译： 公开了一种可辐射固化喷墨印刷方法，其在各种不同的墨水接收器上表现出一致的图像质量。 喷墨印刷方法包括以下步骤：a）提供墨水接收器; b）在吸墨器的至少一部分上提供带有点状控制流体的表面层; c）将至少一个辐射固化喷墨墨滴喷射到墨水接收器上的表面层上; 其特征在于，所述点化控制流体含有表面活性剂，成膜聚合树脂和无机填料，其中P / F大于3.0，P为成膜聚合物树脂的重量％，F为重量％ 无机填料，均基于点化控制流体的总重量，表面活性剂以表面层的总干重为0.1〜20重量％的范围存在。

    Device for direct electrostatic printing with a conventional printhead structure and AC-coupling to the control electrodes
    7.
    发明授权
    Device for direct electrostatic printing with a conventional printhead structure and AC-coupling to the control electrodes 失效
    用于使用常规打印头结构进行直接静电印刷和与控制电极交流耦合的装置

    公开(公告)号：US6109731A

    公开(公告)日：2000-08-29

    申请号：US175259

    申请日：1998-10-20

    申请人： Danny Van Gemert ,  Raf Peymen ,  Jacques Leonard ,  Hilbrand Van Den Wijngaert ,  Guido Desie

    发明人： Danny Van Gemert ,  Raf Peymen ,  Jacques Leonard ,  Hilbrand Van Den Wijngaert ,  Guido Desie

    IPC分类号： B41J2/415 ,  B41J2/06

    CPC分类号： B41J2/4155 ,  G03G2217/0025

    摘要： A direct electrostatic printing device includes a printhead structure with apertures and control electrodes associated with the apertures for delivering toner from a toner source to a substrate in accordance with image data. A first voltage source is provided to establish a flow of toner particles from the toner source to the substrate. A second voltage source is provided to establish a control voltage between the toner source and the control electrodes to control toner flow in accordance with the image data. The second voltage source provides a first AC field between a toner source and the control electrodes to permit toner flow and a second, diminished, AC field between the toner source and the control electrodes in order to stop the toner flow.

    摘要翻译： 直接静电印刷装置包括具有孔的打印头结构和与孔相关联的控制电极，用于根据图像数据将调色剂从调色剂源输送到基板。 提供第一电压源以建立调色剂颗粒从调色剂源到基底的流动。 提供第二电压源以建立调色剂源和控制电极之间的控制电压，以根据图像数据控制调色剂流。 第二电压源在调色剂源和控制电极之间提供第一AC场，以允许调色剂流动，以及调色剂源和控制电极之间的第二，减小的AC场，以便阻止调色剂流动。

    Printhead structure having electrodes not extending to the edge of printing apertures
    8.
    发明授权
    Printhead structure having electrodes not extending to the edge of printing apertures 失效
    具有不延伸到打印孔边缘的电极的打印头结构

    公开(公告)号：US6059398A

    公开(公告)日：2000-05-09

    申请号：US868387

    申请日：1997-06-03

    申请人： Guido Desie ,  Jacques Leonard

    发明人： Guido Desie ,  Jacques Leonard

    IPC分类号： B41J2/415 ,  B41J2/04

    CPC分类号： B41J2/4155

    摘要： A printhead structure is provided comprising individual control electrodes (106a) in combination with printing apertures (107) and a shield electrode (106b), both electrodes separated by an insulating material wherein both the shield electrode and the control electrodes have openings and either the shield electrode or each of the control electrodes does not reach as far as the edges of the printing apertures. The linear dimension of the openings in the shield electrode or in each of the control electrodes is at least 1.1 times larger than the longest linear dimension of each of the printing apertures present in the openings. A DEP device using such a printhead structure is also disclosed.

    摘要翻译： 提供了一种打印头结构，其包括与打印孔（107）和屏蔽电极（106b）组合的独立控制电极（106a），两个电极由绝缘材料隔开，其中屏蔽电极和控制电极均具有开口，屏蔽 电极或每个控制电极不能达到打印孔的边缘的距离。 屏蔽电极或每个控制电极中的开口的线性尺寸比存在于开口中的每个印刷孔的最长直线尺寸大至少1.1倍。 还公开了使用这种打印头结构的DEP设备。

    Method and device for printing information on substrates having security features
    9.
    发明授权
    Method and device for printing information on substrates having security features 失效
    用于在具有安全特征的基板上打印信息的方法和装置

    公开(公告)号：US5880760A

    公开(公告)日：1999-03-09

    申请号：US868418

    申请日：1997-06-03

    申请人： Guido Desie ,  Leon Vermeulen ,  Michel Boulonne

    发明人： Guido Desie ,  Leon Vermeulen ,  Michel Boulonne

    IPC分类号： G03G15/34 ,  B41J2/06

    CPC分类号： G03G15/346 ,  G03G2217/0025 ,  Y10S101/37

    摘要： A method for printing information on a substrate having security features includes the steps of: applying a DC potential difference (DC.sub.TB) between a back electrode and a toner delivery means to create a flow of toner particles from the toner delivery means to the back electrode; interposing a printhead structure, the printhead structure having printing apertures and control electrodes around the printing apertures, between the toner delivery means and the back electrode so as to create a spacing having a width L between the printhead structure and the back electrode and to imagewise control the flow of toner particles; passing the substrate having a thickness T in .mu.m through the spacing; adjusting the spacing between the printhead structure and the back electrode such that the width of the spacing L is greater than or equal to 1.5 T; adjusting the DC potential difference (DC.sub.TB) such that the relationship .vertline.DC.sub.TB .vertline./L, expressed in volts per micrometer (V/.mu.m), is greater than or equal to 1.0; imagewise depositing the toner particles on the substrate through the printing apertures; and fixing the toner particles to the substrate.

    摘要翻译： 一种用于在具有安全特征的基板上打印信息的方法包括以下步骤：在背电极和调色剂传送装置之间施加DC电位差（DCTB），以产生调色剂颗粒从调色剂传送装置流向背电极; 打印头结构，打印头结构具有打印孔和围绕打印孔的控制电极，位于调色剂传送装置和背面电极之间，以便产生在打印头结构和背面电极之间具有宽度L的间隔和成像控制 调色剂颗粒的流动; 将具有以μm为单位的厚度T的衬底通过所述间隔; 调节打印头结构和背电极之间的间距，使得间距L的宽度大于或等于1.5T; 调整DC电位差（DCTB），使得用伏特每微米（V /μm）表示的关系| DCTB | / L大于或等于1.0; 通过印刷孔将调色剂颗粒成像沉积在基底上; 并将调色剂颗粒固定到基底上。