公开(公告)号：US06185399B2

公开(公告)日：2001-02-06

申请号：US09449597

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 ,  G03G2215/0119 ,  G03G2217/0066

摘要： A multicolor image-on-image reproduction machine includes a main assembly, a controller, a movable image bearing member having a path of movement, and a plurality of air breakdown charge and development (ABCD) imaging units mounted along the path of movement for forming color separation toner images. Each (ABCD) imaging unit includes a photoreceptor having a photoconductive surface forming a toner image separation development nip with the movable image bearing member; a toner supply apparatus for applying a layer of toner onto the photoconductive surface; a charging device for uniformly charging the photoconductive surface through the layer of toner; and an exposure device connected to the controller for image-wise exposing of the photoconductive surface and the layer of toner to form therein image areas and background areas of a desired color separation image. The multicolor image-on-image reproduction machine then includes a bias source for biasing the image bearing member at the toner image separation development nip to a potential sufficient to cause air breakdown selective recharging of the background areas of the layer of toner, thereby enabling the image areas of the layer of toner to be separated and developed as a color separation toner image onto the movable image bearing member, and the background areas thereof to remain on the photoreceptor.

摘要翻译： 一种多色图像图像再现机包括主组件，控制器，具有运动路径的可动图像承载部件，以及沿着运动路径安装的多个击穿电荷和显影（ABCD）成像单元，用于形成 色彩分色调色剂图像。 每个（ABCD）成像单元包括具有形成与可动图像承载部件的调色剂图像分离显影辊隙的光电导表面的感光体; 调色剂供应装置，用于将一层调色剂施加到光电导表面上; 充电装置，用于通过调色剂层均匀地对光电导表面充电; 以及连接到控制器的曝光装置，用于使感光表面和调色剂层成像，以在其中形成期望的分色图像的图像区域和背景区域。 多色图像再现机器然后包括偏压源，用于将调色剂图像分离显影辊隙处的图像承载部件偏置到足以使调色剂层背景区域的空气击穿选择性再充电的电位，从而使得 作为分色调色剂图像分离和显影的调色剂层的图像区域到可动图像承载部件上，并且其背景区域保留在感光体上。

公开(公告)号：US4544935A

公开(公告)日：1985-10-01

申请号：US386912

申请日：1982-06-10

申请人： Katsuo Sakai

发明人： Katsuo Sakai

IPC分类号： G03G15/05 ,  B41J2/40 ,  G01D15/06 ,  G03G15/34

CPC分类号： G01D15/06 ,  G03G15/348 ,  G03G2217/0066

摘要： A recording apparatus has a donor roller which is driven to rotate at a first peripheral speed and has a layer of uniformly charged fine toner particles, a multistylus recording head for forming a charge pattern on the toner layer, and a transfer roller which is rotated opposite in direction to the donor roller and at a second peripheral speed which is slower than the first peripheral speed. A recording medium is advanced between the donor and transfer rollers at a speed equal to the second peripheral speed, whereby a transferred toner image of increased density is obtained.

摘要翻译： 记录装置具有被驱动以第一圆周速度旋转的供体辊，并且具有均匀带电的微调色剂颗粒层，用于在调色剂层上形成电荷图案的多段记录头和相对旋转的转印辊 在施加辊的方向上以比第一圆周速度慢的第二圆周速度。 记录介质以等于第二圆周速度的速度在供体辊和转印辊之间前进，由此获得增加密度的转印调色剂图像。

公开(公告)号：US06349190B1

公开(公告)日：2002-02-19

申请号：US09666040

申请日：2000-09-20

申请人： Chu-heng Liu ,  Weizhong Zhao

发明人： Chu-heng Liu ,  Weizhong Zhao

IPC分类号： G03G1501

CPC分类号： G03G15/0173 ,  G03G15/0121 ,  G03G2215/0177 ,  G03G2217/0058 ,  G03G2217/0066

摘要： A low cost process multicolor image reproduction machine includes a rotatable endless toner image receiving and transfer member for cyclically building up a multicolor image from a plural number of received color separation toner images; a sheet handling system including a back up roller defining a toner image transfer nip against the rotatable endless toner image receiving and transfer member; a rotatable photoreceptor member forming a contact electrostatic printing (CEP) nip with the rotatable endless toner image receiving and transfer member for separating toner image areas from toner background areas of a color separation toner image formed on the photoreceptor member; imaging devices for cyclically forming a plural number of color separation toner images on the photoreceptor member, and a controller for controlling formation of, and build up into a multicolor toner image, of the plural number of color separation images, as well as, transfer of the multicolor toner image onto a copy sheet.

摘要翻译： 低成本处理多色图像再现机包括可旋转的无端调色剂图像接收和转印部件，用于从多个接收的分色调色剂图像循环地构建多色图像; 片材处理系统，包括限定与可旋转的无端调色剂图像接收和传送构件相关的调色剂图像转印间隙的支撑辊; 与可旋转的无端调色剂图像接收和转印部件形成接触静电印刷（CEP）压区的可旋转感光体部件，用于将调色剂图像区域与形成在感光体部件上的分色调色剂图像的调色剂背景区域分离; 用于在感光体构件上循环形成多个分色调色剂图像的成像装置，以及用于控制多色分色图像的形成和累积成多色调色剂图像的控制器，以及转印 将多色调色剂图像复印到复印纸上。

公开(公告)号：US5987283A

公开(公告)日：1999-11-16

申请号：US232651

申请日：1999-01-19

申请人： Weizhong Zhao ,  Chu-heng Liu

发明人： Weizhong Zhao ,  Chu-heng Liu

IPC分类号： G03G15/10 ,  G03G15/16

CPC分类号： G03G15/101 ,  G03G15/169 ,  G03G2217/0066

摘要： An apparatus and method develops an electrostatic latent image directly from an imaging member to a final substrate, such as paper or the like. An image development apparatus and method creates a first electrostatic latent image on an imaging member and deposits a toner layer on the imaging member. The image developer then generates a second electrostatic latent image in the toner layer in response to the first electrostatic latent image on the imaging member. The second electrostatic latent image can be generated by either a broad source ion charging device or an air breakdown charging device. Next, the latent image bearing toner layer is selectively separated and developed such that the image areas are developed directly from the imaging member onto a final substrate and the non-image areas remain on the imaging member.

摘要翻译： 一种设备和方法将静电潜像从成像构件直接显影到诸如纸张等的最终基底。 图像显影装置和方法在成像构件上产生第一静电潜像，并将调色剂层沉积在成像构件上。 然后，图像显影剂响应于成像构件上的第一静电潜像而在调色剂层中产生第二静电潜像。 第二静电潜像可以由宽源离子充电装置或空气击穿充电装置产生。 接下来，潜像承载调色剂层被选择性地分离和显影，使得图像区域从成像构件直接显影到最终的基底上，并且非图像区域保留在成像构件上。

公开(公告)号：US5937243A

公开(公告)日：1999-08-10

申请号：US884236

申请日：1997-06-27

申请人： Chu-heng Liu ,  Weizhong Zhao

发明人： Chu-heng Liu ,  Weizhong Zhao

IPC分类号： G03G15/05 ,  G03G15/34 ,  G03G15/00 ,  G03G13/00

CPC分类号： G03G15/34 ,  G03G15/344 ,  G03G2217/0066

摘要： A novel image development method and apparatus are disclosed, whereby image-wise charging of a toner layer is accomplished by induce air breakdown electrical discharge such that free mobile ions are introduced in the vicinity of an electrostatic latent image coated with a layer of developing material. The latent image causes the free mobile ions to flow in an image-wise ion stream corresponding to the latent image, which, in turn, leads to image-wise charging of the toner layer, such that the toner layer itself becomes the latent image carrier. The latent image carrying toner layer is subsequently developed and transferred to a copy substrate to produce an output document.

摘要翻译： 公开了一种新颖的图像显影方法和装置，其中通过诱导空气击穿放电来实现调色剂层的图像充电，使得在涂覆有显影材料层的静电潜像附近引入自由的移动离子。 潜像导致游离的移动离子在对应于潜像的成像方式的离子流中流动，这进而导致调色剂层的图像充电，使得调色剂层本身成为潜像载体 。 随后显影载带调色剂层的潜像，并将其转印到复印基板上以产生输出文件。

公开(公告)号：US5991578A

公开(公告)日：1999-11-23

申请号：US197793

申请日：1998-11-23

申请人： Chu-Heng Liu ,  Weizhong Zhao

发明人： Chu-Heng Liu ,  Weizhong Zhao

IPC分类号： G03G13/22 ,  G03G15/02 ,  G03G15/34

CPC分类号： G03G15/34 ,  G03G13/22 ,  G03G15/0275 ,  G03G2217/0066

摘要： An efficient and high quality image forming method and apparatus wherein only selective scattered portions of an imaging surface are charged with a first charging device, and then coated with a layer of charged toner solids by a toner supply apparatus, thereby forming an "image area patch of toner"; wherein each selected scattered portion is centered relative to, and has an area slightly exceeding an area to be imaged; each such charged and coated portion is then image-wise exposed to form a first latent image; each such coated portion is subsequently recharged by a reverse charge printing (RCP) second charging device in an image-wise manner to create a secondary latent image having toner solids in image areas charged to a first polarity, and toner solids in background areas charged to a second and opposite polarity; and finally the toner solids in the image areas thereof are then transferred onto a copy substrate for fixing as an output document, thus leaving a significantly diminished quantity of non-development toner for subsequent removal from the photoreceptor.

摘要翻译： 一种高效且高质量的图像形成方法和装置，其中只有成像表面的选择性散射部分被第一充电装置充电，然后通过调色剂供应装置涂覆带电的调色剂固体层，从而形成“图像区域贴片 的墨粉“; 其中每个选择的散射部分相对于中心，并且具有稍微超过要成像的区域的面积; 然后将每个这样的带电和涂覆部分成像地暴露以形成第一潜像; 每个这样的涂覆部分随后通过反向电荷印刷（RCP）第二充电装置以成像方式再次充电，以产生在充电到第一极性的图像区域中具有调色剂固体的二次潜像，并将背景区域中的调色剂固体装入 第二个和相反的极性; 最后将其图像区域中的调色剂固体转移到用于固定的复印基板上作为输出文件，从而留下显着减少的未显影调色剂，以便随后从感光体中除去。

公开(公告)号：US5991577A

公开(公告)日：1999-11-23

申请号：US197753

申请日：1998-11-23

申请人： Chu-Heng Liu ,  Weizhong Zhao

发明人： Chu-Heng Liu ,  Weizhong Zhao

IPC分类号： G03G15/10 ,  G03G15/34 ,  G03G15/02

CPC分类号： G03G15/34 ,  G03G15/101 ,  G03G2217/0066

摘要： A method and apparatus for producing high quality liquid toner images in an electrostatic printing machine. The method using the apparatus includes selectively coat a photoreceptor only in selected image area centered portion of the photoreceptor surface thereby forming an image area centered patch of toner with developing material; image-wise exposing each such portion; patch of toner. The method using the apparatus next includes forming a final toner image from each image area centered patch of toner using an air breakdown charge development (ABCD) assembly. The ABCD assembly includes a relatively large magnitude voltage biasing source, and a nip forming roll coupled thereto and forming a toner solids recharging nip with the photoreceptor, for image-wise recharging of the single polarity toner solids coating each image area centered patch of toner, by inducing an air breakdown electrical discharge in which free mobile ions are introduced into the vicinity of each image area centered patch of toner. The latent image underlying each image area centered patch of toner cooperates with the large magnitude voltage biasing source to cause free mobile ions to flow to the toner solids of each image area centered patch of toner in an image-wise manner corresponding to the underlying latent image. This, in turn, leads to image-wise recharging of the toner solids of each image area centered patch of toner in which toner solids in image areas of each patch then have a first polarity, and toner solids in background areas thereof then have a second and relatively opposite polarity. The method of the present invention then includes separating the image area toner solids of each patch of toner from the background area toner solids thereof, thereby resulting in an efficiently produced, quality toner image with significantly reduced non-development marking material generated and requiring removal.

公开(公告)号：US5826147A

公开(公告)日：1998-10-20

申请号：US883292

申请日：1997-06-27

申请人： Chu-heng Liu ,  Weizhong Zhao

发明人： Chu-heng Liu ,  Weizhong Zhao

IPC分类号： G03G15/05 ,  G03G15/10 ,  G03G15/34 ,  G03G15/16

CPC分类号： G03G15/342 ,  G03G15/344 ,  G03G2217/0058 ,  G03G2217/0066

摘要： A novel image development method and apparatus, wherein an imaging member having an imaging surface is provided with a layer of marking material thereon, and an electrostatic latent image is created in the layer of marking material. Image-wise charging of the layer of marking material is accomplished by a wide beam ion source such that free mobile ions are introduced in the vicinity of an electrostatic latent image associated with the imaging member having the layer of marking material coated thereon. The latent image associated with the imaging member causes the free mobile ions to flow in an image-wise ion stream corresponding to the latent image, which, in turn, leads to image-wise charging of the toner layer, such that the toner layer itself becomes the latent image carrier. The latent image carrying toner layer is subsequently developed and transferred to a copy substrate to produce an output document.

摘要翻译： 一种新颖的图像显影方法和装置，其中具有成像表面的成像构件在其上设置有标记材料层，并且在标记材料层中产生静电潜像。 标记材料层的成像充电通过宽束离子源实现，使得游离的移动离子被引入到与其上涂覆有标记材料层的成像构件相关联的静电潜像附近。 与成像构件相关联的潜像使得游离的移动离子在与潜像相对应的成像方式的离子流中流动，这进而导致色调剂层的图像充电，使得调色剂层本身 成为潜像载体。 随后显影载带调色剂层的潜像，并将其转印到复印基板上以产生输出文件。

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。