公开(公告)号：US20110032575A1

公开(公告)日：2011-02-10

申请号：US12536967

申请日：2009-08-06

申请人： Beilei Xu ,  Robert Paul Loce ,  Chu-heng Liu ,  Ying-wei Lin

发明人： Beilei Xu ,  Robert Paul Loce ,  Chu-heng Liu ,  Ying-wei Lin

IPC分类号： H04N1/409 ,  G06K9/40

CPC分类号： H04N1/387 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/10008 ,  G06T2207/10148 ,  G06T2207/30176

摘要： A method for determining local defocus distance in a scanned image of a non-planar original object is provided comprising scanning at least a portion of the non-planar original object to produce first scanned image data at a first focal plane and scanning same the at least a portion of the non-planar original object to produce at least second scanned image data at a second focal plane. The first scanned image data is different from the second scanned image data wherein a distance between the first focal plane and the second focal plane is a predetermined quantity. The method further comprises estimating an out-of-focus distance of the object from the first and the second scanned image data.

摘要翻译： 提供了一种用于确定非平面原始对象的扫描图像中的局部散焦距离的方法，包括扫描非平面原始对象的至少一部分以在第一焦平面处产生第一扫描图像数据，并至少扫描至少 所述非平面原始对象的一部分在第二焦平面处产生至少第二扫描图像数据。 第一扫描图像数据与第二扫描图像数据不同，其中第一焦平面和第二焦平面之间的距离是预定量。 该方法还包括估计物体与第一和第二扫描图像数据的离焦距离。

公开(公告)号：US07126721B2

公开(公告)日：2006-10-24

申请号：US10184219

申请日：2002-06-27

申请人： Shen-ge Wang ,  Beilei Xu ,  Chu-heng Liu

发明人： Shen-ge Wang ,  Beilei Xu ,  Chu-heng Liu

IPC分类号： H04N1/405 ,  G06K15/00 ,  B41M3/10

CPC分类号： G03G8/00 ,  B41M3/14 ,  H04N2201/3211 ,  H04N2201/3214 ,  H04N2201/3215 ,  H04N2201/3226 ,  H04N2201/3271

摘要： The present invention relates to protecting printed items intended for public exchange having important informational indicia provided therein. The print items are protected from tampering by providing an informational indicia image as a glossmark. By selectively applying halftones with anisotropic structure characteristics which are significantly different in orientation while remaining identical in density to render information indicia, a glossmark image is produced of the information indicia. Such an information indicia glossmark image when provided in print item image helps protect that print item image from tampering.

摘要翻译： 本发明涉及保护用于公共交换的印刷品，其中提供了重要的信息标记。 通过提供信息标记图像作为光标，保护打印物品免受篡改。 通过选择性地应用具有各向异性结构特征的半色调，所述各向异性结构特征在取向上显着不同，同时保持密度相同以呈现信息标记，产生了信息标记的光泽标记图像。 当在打印项目图像中提供时，这样的信息标记光泽标记图像有助于保护该打印项目图像免受篡改。

公开(公告)号：US06775499B2

公开(公告)日：2004-08-10

申请号：US10321982

申请日：2002-12-17

申请人： David H. Pan ,  Chu-heng Liu ,  Henry R. Till

发明人： David H. Pan ,  Chu-heng Liu ,  Henry R. Till

IPC分类号： G03G1510

CPC分类号： G03G15/104

摘要： Method and apparatus for transferring a developed image from an image bearing member to a receiver substrate in a Contact Electrostatic Printing (CEP) system may be provided according to the present invention. The developed image is formed of a development material having a mixture of carrier fluid and pigmented polymeric particles, the composition of such mixture being selected for its characteristic behavior at an elevated temperature for transitioning to a substantially single phase. The method includes the steps of developing an image onto an image bearer using the aforementioned development material; concentrating the developed image; heating the developed image to a temperature at which the polymeric particles and the carrier fluid achieve a substantially single phase condition, so as to form a transferable image; and transferring the transferable image to a receiver substrate such as a paper sheet.

摘要翻译： 可以根据本发明提供用于将显影图像从图像承载部件转移到接触式静电印刷（CEP）系统中的接收器基板的方法和装置。 显影图像由具有载体流体和着色聚合物颗粒的混合物的显影材料形成，这种混合物的组合物在升高的温度下被选择用于转变到基本上单相的特性。 该方法包括以下步骤：使用上述开发材料将图像显影到图像载体上; 集中发达的形象; 将显影的图像加热到聚合物颗粒和载体流体达到基本上单相条件的温度，以形成可转移的图像; 并将可转印图像转印到诸如纸张的接收器基板上。

公开(公告)号：US06621998B2

公开(公告)日：2003-09-16

申请号：US10014572

申请日：2001-12-14

申请人： Chu-heng Liu ,  Weizhong Zhao

发明人： Chu-heng Liu ,  Weizhong Zhao

IPC分类号： G03G1510

CPC分类号： G03G15/101 ,  G03G15/34

摘要： An imaging system for effecting electrostatic printing of an image, wherein the imaging system includes an electrostatic printing engine operable in a novel fashion upon a copy substrate, for imaging and development of an electrostatic latent image representative of the image, and subsequently transfers the developed image to the copy substrate. A quantity of low solids content liquid developing material is subject to compression in a process nip such that the concentration of marking particles therein increases and the concentration of carrier fluid decreases. A toner cake layer is thereby formed in the process nip, and is used for development of the electrostatic latent image in a development zone situated in the process nip.

摘要翻译： 一种用于实现图像的静电印刷的成像系统，其中所述成像系统包括以新颖的方式操作在复制基板上的静电印刷引擎，用于对表示图像的静电潜像进行成像和显影，并且随后传送显影图像 到复印底物。 一定量的低固体含量液体显影材料在加工压区中受到压缩，使得其中标记颗粒的浓度增加并且载体流体的浓度降低。 因此，在加工辊隙中形成调色剂饼层，并且用于在位于加工辊隙中的显影区域中的静电潜像的显影。

公开(公告)号：US06553205B1

公开(公告)日：2003-04-22

申请号：US10014571

申请日：2001-12-14

申请人： Chu-heng Liu

发明人： Chu-heng Liu

IPC分类号： G03G2100

CPC分类号： G03G15/101 ,  G03G15/34 ,  G03G21/0088

摘要： A toner cleaning system for cleaning a toner from a supporting surface, including a movable member having a carrier permeable segment that features a porous structure. The movable member is actuated to engage the supporting surface so as to receive therefrom the toner at an exterior surface of the carrier permeable segment. A quantity of carrier fluid is provided at an interior surface of the carrier permeable segment. The carrier permeable segment supports carrier fluid flow from the interior surface to a portion of the received toner so as to disengage the portion of the received toner from the carrier permeable segment. The disengaged toner portion is then susceptible to collection and re-use. Embodiments of the toner cleaning system are operable in an imaging system for effecting electrostatic printing of an image, wherein the imaging system includes at least one contact electrostatic printing engine operable for imaging and development of a latent image representative of the image, and subsequent transfer of the developed image to a copy substrate.

摘要翻译： 一种用于从支撑表面清洁调色剂的调色剂清洁系统，包括具有特征在于多孔结构的载体可渗透部分的可移动部件。 致动可移动部件以接合支撑表面，以便在载体可透过部分的外表面处从其接收调色剂。 在载体可渗透段的内表面上提供一定数量的载体流体。 载体可渗透部分支撑载体流体从内表面流到接收的调色剂的一部分，以便将接收的调色剂的部分与载体可渗透部分分离。 然后分离的调色剂部分易于收集和再次使用。 调色剂清洁系统的实施例可在成像系统中操作以实现图像的静电印刷，其中成像系统包括可操作用于对代表图像的潜像进行成像和显影的至少一个接触式静电印刷引擎， 将显影的图像复制到复印底物。

公开(公告)号：US06341208B1

公开(公告)日：2002-01-22

申请号：US09604514

申请日：2000-06-27

申请人： Chu-heng Liu ,  Weizhong Zhao

发明人： Chu-heng Liu ,  Weizhong Zhao

IPC分类号： G03G1510

CPC分类号： G03G15/1605 ,  G03G9/131 ,  G03G13/16

摘要： The efficient contact transfer of liquid toner images is obtained by using an absorbent coating material over an image bearing member. The absorbent coating material absorbs carrier fluid from a developed image. By absorbing carrier fluid from the developed image the internal cohesiveness of the image increases and the adhesion of the image to the next substrate increases.

摘要翻译： 通过在图像承载部件上使用吸收性涂层材料来获得液体调色剂图像的有效接触转印。 吸收性涂料从显影图像中吸收载液。 通过从显影图像吸收载流体，图像的内部粘附性增加，并且图像对下一个底物的粘附性增加。

公开(公告)号：US06289191B1

公开(公告)日：2001-09-11

申请号：US09449994

申请日：1999-11-26

申请人： Chu-heng Liu ,  Weizhong Zhao

发明人： Chu-heng Liu ,  Weizhong Zhao

IPC分类号： G03G1510

CPC分类号： G03G15/342 ,  G03G2215/0119 ,  G03G2215/0658

摘要： Imaging system for effecting single pass, multicolor printing of a color image, wherein the imaging system includes a plurality of contact electrostatic printing engines operable in serial fashion upon a copy substrate, wherein each contact electrostatic printing engine images and develops a respective electrostatic latent image representative of a component of the color image, and subsequently transfers the developed component image to the copy substrate as the copy substrate proceeds in a single pass through the imaging system.

摘要翻译： 用于实现彩色图像的单色，多色打印的成像系统，其中所述成像系统包括以复制基板的方式可串行操作的多个接触式静电印刷引擎，其中每个接触式静电印刷机成像和显影相应的静电潜像代表 的彩色图像的分量，并且随着复制基板在单次通过成像系统中进行，随后将显影的分量图像转印到复制基板。

公开(公告)号：US06233420B1

公开(公告)日：2001-05-15

申请号：US09450869

申请日：1999-11-29

申请人： Chu-heng Liu ,  Henry R. Till

发明人： Chu-heng Liu ,  Henry R. Till

IPC分类号： G03G1510

CPC分类号： G03G15/34 ,  G03G2217/0066

摘要： An imaging system and corresponding method for manipulating, regulating or adjusting the fluid concentration of a toner cake to enhance the resultant image quality, while concomitantly enhancing the development and separation of image portions of the toner cake from non-image or background portions of the toner cake. The imaging system includes a toner cake applicator for applying toner cake onto a toner cake receiving member, a charging device disposed so as to form an electrostatic latent image in the toner cake, a separation subsystem positioned relative to the receiving member so as to selectively separate at least a portion of the imaged toner cake from the receiving member, and a fluid regulating device for regulating the amount of fluid in the toner cake.

摘要翻译： 一种用于操纵，调节或调节调色剂滤饼的液体浓度以增强所得图像质量的成像系统和相应方法，同时增强调色剂块的图像部分与调色剂的图像部分或背景部分的显影和分离 蛋糕。 成像系统包括用于将调色剂饼施加到调色剂块接收构件的调色剂饼施加器，设置成在调色剂饼中形成静电潜像的充电装置，相对于接收构件定位的分离子系统，以便选择性地分离 来自接收构件的成像调色剂饼的至少一部分，以及用于调节调色剂饼中的流体量的流体调节装置。

公开(公告)号：US06181901B2

公开(公告)日：2001-01-30

申请号：US09449590

申请日：1999-11-29

申请人： Weizhong Zhao ,  Chu-heng Liu

发明人： Weizhong Zhao ,  Chu-heng Liu

IPC分类号： G03G1501

CPC分类号： G03G15/344 ,  G03G15/0194 ,  G03G2217/0066

摘要： A multicolor image reproduction machine includes a main assembly having an image bearing member, a controller, and a bias source for biasing the image bearing member. It also includes a plurality of color separation toner image forming units each having a photoreceptor including a photoconductive surface forming a toner image separation development nip with the image bearing member. Each imaging unit also includes a toner supply apparatus for applying a layer of toner of a particular color onto the photoconductive surface; a first charging device for uniformly charging the photoconductive surface; an exposure device connected to the controller for image-wise exposing the photoconductive surface and the layer of toner to form therein image areas and background areas of a desired image; and a second charging device connected to the controller for selectively reversing charge in the background areas of the desired image, so as to enable subsequent separation of the background areas from the image areas. The multicolor image reproduction machine further includes a separation development assembly for separating and developing the image areas of the desired image from the layer of toner and onto the image bearing member of the main assembly to form a multicolor toner image.

摘要翻译： 多色图像再现机包括具有图像承载部件的主组件，用于偏压图像承载部件的控制器和偏压源。 它还包括多个分色调色剂图像形成单元，每个具有感光体，该感光体包括与图像承载部件形成调色剂图像分离显影辊隙的光电导表面。 每个成像单元还包括用于将特定颜色的调色剂层施加到光电导表面上的调色剂供应装置; 用于使感光体表面均匀充电的第一充电装置; 连接到所述控制器的曝光装置，用于使所述感光表面和所述调色剂层成像，以在其中形成所需图像的图像区域和背景区域; 以及连接到控制器的第二充电装置，用于选择性地反转所需图像的背景区域中的电荷，以便能够随后从图像区域分离背景区域。 该多色图像再现机还包括分离显影组件，用于从所述调色剂层分离和显影所需图像的图像区域并将其显影到主组件的图像承载部件上以形成多色调色剂图像。

公开(公告)号：US08950322B2

公开(公告)日：2015-02-10

申请号：US13426209

申请日：2012-03-21

申请人： Chu-heng Liu ,  Peter Knausdorf

发明人： Chu-heng Liu ,  Peter Knausdorf

IPC分类号： B41F7/24 ,  B41N3/08

CPC分类号： B41C1/1033 ,  B41F7/00 ,  B41F7/30 ,  B41F33/0054 ,  B41N3/08

摘要： A system and corresponding methods are disclosed for controlling the thickness of a layer of dampening fluid applied to a reimageable surface of an imaging member in a variable data lithography system. Following deposition of the dampening fluid layer, a gas is passed over a region of the fluid layer prior to pattern forming. The gas causes a controlled amount of the dampening fluid layer to evaporate such that the remaining layer is of a desired and controlled thickness. Among other advantages, improved print quality is obtained.

摘要翻译： 公开了一种用于控制在可变数据光刻系统中施加到成像构件的可再成像表面的阻尼流体层的厚度的系统和相应方法。 在沉积润湿流体层之后，在图案形成之前气体通过流体层的区域。 气体导致受控量的阻尼流体层蒸发，使得剩余的层具有期望和受控的厚度。 除了其他优点之外，还获得了改进的打印质量。