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    Compact electrophotographic color developer module
    13.
    发明公开
    Compact electrophotographic color developer module 失效
    紧凑电子照相彩色显影单元

    公开(公告)号：EP0867781A1

    公开(公告)日：1998-09-30

    申请号：EP97117509.6

    申请日：1997-10-09

    申请人： Hewlett-Packard Company

    发明人： Lloyd, Michael B.

    IPC分类号： G03G15/01

    CPC分类号： G03G15/0152 ,  G03G15/0126 ,  G03G15/0173 ,  G03G2215/0174

    摘要： Embodiments of a compact electrophotographic color developer module (71, 91) are shown and described, each embodiment including generally vertically-oriented, self-contained developers (77, 92) stacked or radially fanned-out above the photoconductor drum (78, 126). The developers (77, 92) are preferably either wedge-shaped or rectangular, and preferably have cylindrical sleeves (73) less than about 2 inches apart. The compact developer module (71, 91) and cooperating image transfer system have a small form factor and footprint and may be used in a wide variety of electrophotographic platforms with minimal changes. A cam system (118) may be included to allow either contact, non-contact, or close-jump-gap development, with a simple code or ROM change. The photoconductor drum (78, 126) is sized to carry less than a complete image, because the image is transferred to an intermediate transfer member before transfer to paper. With extension of the developer canisters (72, 72', 94) and/or of the intermediate transfer member, the system may be easily adapted for increased toner capacity, life and media size, respectively, with minimum or no effect on form factor and footprint. With extension of the width of the photoconductor drum(78, 126) and transfer belt (76) components, the system may be easily adapted for portrait or landscape media orientations.

    Color-image forming apparatus for printing a color image
    14.
    发明公开
    Color-image forming apparatus for printing a color image 失效
    Farbbilderzeugungsgerätzum Drucken eines Farbbildes

    公开(公告)号：EP0851312A2

    公开(公告)日：1998-07-01

    申请号：EP97122535.4

    申请日：1997-12-19

    申请人： NEC CORPORATION

    发明人： Yamaguchi, Chiseki

    IPC分类号： G03G15/01 ,  G03G15/00

    CPC分类号： G03G15/5054 ,  G03G15/0131 ,  G03G15/0152 ,  G03G15/0173 ,  G03G15/0178 ,  G03G15/0189 ,  G03G15/5041 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/0119 ,  G03G2215/018 ,  H04N1/295

    摘要： An electrophotographic printer apparatus for printing a color image is provided with a receptive layer for recording an electrostatic latent image and a developer unit for applying the toners of a number of colors to the electrostatic latent image. Also provided are an intermediate transfer medium to which toner images formed in a layered form on the receptive layer are transferred, and a power supply for applying a difference in potential between the intermediate transfer medium and the receptive layer. Further provided are a current detector for detecting a value of an electric current flowing across the intermediate transfer medium and the receptive layer, and a transfer unit for transferring the toner image formed on the intermediate transfer medium to a recording medium. Furthermore, a main controller is provided for effecting control in setting the potential difference between the intermediate transfer medium and the receptive layer to V1, in obtaining a current value I1 from the current detector when a toner layer is not present between the intermediate transfer medium and the receptive layer, in obtaining a current value IX from the current detector when the toner layer is present between the intermediate transfer medium and the receptive layer, and in optimally correcting operating conditions of an image-forming element by determining characteristics of the toner layer on the basis of a difference between the current value I1 and the current value IX.

    摘要翻译： 用于打印彩色图像的电子照相打印机设备设置有用于记录静电潜像的接收层和用于将多种颜色的调色剂施加到静电潜像的显影单元。 还提供了中间转印介质，转印有在接收层上以分层形式形成的调色剂图像的中间转印介质，以及用于在中间转印介质和接收层之间施加电位差的电源。 还提供了一种用于检测流过中间转印介质和接收层的电流值的电流检测器，以及用于将形成在中间转印介质上的调色剂图像转印到记录介质上的转印单元。 此外，提供了一种主控制器，用于在将中间转印介质和接收层之间的电位差设定为V1时进行控制，以在中间转印介质和中间转印介质之间不存在调色剂层时从电流检测器获得电流值I1 接收层，当调色剂层存在于中间转印介质和接收层之间时，从当前检测器获得当前值IX，并且通过确定调色剂层的特性来最佳地校正图像形成元件的操作条件 电流值I1与当前值IX之差的基础。

    Image forming apparatus
    15.
    发明公开
    Image forming apparatus 失效
    成像设备

    公开(公告)号：EP0824229A1

    公开(公告)日：1998-02-18

    申请号：EP97113921.7

    申请日：1997-08-12

    申请人： FUJI XEROX CO., LTD.

    发明人： Sakamaki, Katsumi, c/o Fuji Xerox Co., Ltd. ,  Kobayashi, Kenichi ,  Ida, Akihiro, c/o Fuji Xerox Co., Ltd.

    IPC分类号： G03G15/01

    CPC分类号： G03G15/0194 ,  G03G15/0173 ,  G03G15/0189 ,  G03G2215/0119 ,  G03G2215/0141

    摘要： An image forming member 1 includes an image forming portion 12 for forming an image; a supported portion 10 which is rotatably supported by a bearing 14; and a driven portion 11 which receives a drive force by way of drive means. The image forming section 12, the supported portion 10, the driven portion 11 are all made of the same base member having the same diameter. Further, the surface 10' of the supported portion 10 is supported by the bearing 14, and the surface 11' of the driven portion 11 receives the drive force.

    摘要翻译： 图像形成部件1包括用于形成图像的图像形成部分12; 由轴承14可旋转地支撑的被支撑部分10; 以及通过驱动装置接受驱动力的从动部11。 图像形成部分12，被支撑部分10，被驱动部分11全部由具有相同直径的相同基部构件制成。 此外，被支撑部分10的表面10'由轴承14支撑，并且从动部分11的表面11'接收驱动力。

    IMAGING SYSTEM WITH INTERMEDIATE TRANSFER MEMBER
    17.
    发明公开
    IMAGING SYSTEM WITH INTERMEDIATE TRANSFER MEMBER 失效
    与BETWEEN元传递成像系统。

    公开(公告)号：EP0515378A1

    公开(公告)日：1992-12-02

    申请号：EP91901324.0

    申请日：1990-12-13

    申请人： SPECTRUM SCIENCES B.V.

    发明人： LIOR, Ishaiau ,  LANDA, Benzion ,  LAVON, Amiran ,  PINHAS, Hanna

    IPC分类号： G03G15 ,  G03G5 ,  G03G7

    CPC分类号： G03G7/00 ,  G03G5/04 ,  G03G15/0131 ,  G03G15/0173 ,  G03G15/161 ,  G03G15/232 ,  G03G15/238 ,  G03G2215/0174 ,  G03G2215/0626 ,  G03G2215/1671 ,  G03G2215/1695

    摘要： Système de formation d'images servant à imprimer une image sur un substrat (42) à partir d'une image latente formée sur une surface porteuse d'image latente (16) comprenant: un appareil de développement (22) servant à développer l'image latente à l'aide d'un révélateur liquide de manière à former une image au toner liquide développée; un premier élément intermédiaire de transfert (4); un premier appareil de transfert servant à transférer l'image développée de la surface porteuse d'image latente (16) au premier élément intermédiaire de transfert (40) au niveau d'une première zone de transfert; un second élément intermédiaire de transfert (47); un deuxième appareil de transfert servant à transférer l'image développée du premier élément intermédiaire de transfert (40) au second élément intermédiaire de transfert (47) au niveau d'une seconde zone de transfert; et un troisième appareil de transfert servant à transférer ladite image développée du second élément intermédiaire de transfert (47) au substrat (42).

    Method and system for compensating for paper shrinkage and misalignment in electrophotographic color printing
    18.
    发明公开
    Method and system for compensating for paper shrinkage and misalignment in electrophotographic color printing 失效
    Methode und System in einem elektrophotographischen Farbdrucker，um Papierschrumpfung und -fehlpositionierung auszugleichen。

    公开(公告)号：EP0469282A2

    公开(公告)日：1992-02-05

    申请号：EP91110279.6

    申请日：1991-06-21

    申请人： Hewlett-Packard Company

    发明人： Storlie, Chris A.

    IPC分类号： G03G15/01 ,  H04N1/46

    CPC分类号： G03G15/0163 ,  G03G15/0121 ,  G03G15/0173

    摘要： A method and system for controlling the alignment and registration of color images such as those of cyan, yellow, magenta, and black (C, Y, M, K) which are successively printed on a photoconductive drum (30, 76) and then transferred from the drum to paper (44) during electrophotographic color printing. Each successive color image printed on paper is fused (36, 38) therein, and then vertical, horizontal and angular error signals are generated (56) after each fusion (36, 38). These error signals represent the difference between an original image reference position and the image position after each color image fusion into the paper. These error signals are then processed (60, 62) in a closed loop feedback control system in such a manner as to control (104, 102, 98) the position and scan rate of a laser beam (96) being projected onto the photoconductive drum (30, 76) to thereby cause the next-printed color image to be aligned with the previously printed color image. In this manner, the electro-optical control of each successively printed latent image formed on the photoconductive drum (30, 76) is responsible for the above alignment and paper correction without requiring complex mechanical schemes to accomplish same.

    摘要翻译： 用于控制诸如青色，黄色，品红色和黑色（C，Y，M，K）的彩色图像的对准和配准的方法和系统，其连续地印刷在感光鼓（30,76）上，然后转印 在电子照相彩色印刷期间从鼓到纸（44）。 印刷在纸上的每个连续的彩色图像在其中熔融（36,38），然后在每次融合（36,38）之后产生垂直，水平和角度误差信号（56）。 这些误差信号表示在每个彩色图像融合到纸中之后原始图像参考位置和图像位置之间的差异。 然后在闭环反馈控制系统中处理（60,62）这些误差信号，以便控制（104,102,98）激光束（96）投影到感光鼓上的位置和扫描速率 （30,76），从而使下一次打印的彩色图像与先前打印的彩色图像对准。 以这种方式，形成在感光鼓（30,76）上的每个连续印刷的潜像的电光控制负责上述对准和纸张校正，而不需要复杂的机械方案来实现。

    Method for repeated electrical charging of a photoconductor layer and corresponding apparatus
    19.
    发明公开
    Method for repeated electrical charging of a photoconductor layer and corresponding apparatus 失效
    系统，用于反复充电图像生成后恢复光电导体的性能。

    公开(公告)号：EP0467609A2

    公开(公告)日：1992-01-22

    申请号：EP91306367.3

    申请日：1991-07-15

    申请人： MINNESOTA MINING AND MANUFACTURING COMPANY

    发明人： Brown, David E., c/o Minnesota Mining and ,  Zwadlo, Gregory L., c/o Minnesota Mining and

    IPC分类号： G03G15/01 ,  G03G21/00

    CPC分类号： G03G21/08 ,  G03G15/0157 ,  G03G15/0173

    摘要： An electrical charging system (17) for repeatedly electrically charging a photoconductor layer (16) on an electrical conductor through charging that photoconductor layer (16), selectively discharging it, providing toner thereon, and removing the charge image in the photoconductor (16) for each of as many toners as desired for forming a final printed image, followed by using a removal radiation of a shorter wavelength on the photoconductor (16) to avoid long term changes therein. A further charging cycle may be used before the next printed image operation begins.

    摘要翻译： 用于重复地电通过根据需要用于形成最终印刷在感光体充电做光电导体层，选择性地排出它，在其上提供调色剂，并除去荷图像为每个尽可能多的调色剂的上充电的感光层以导电体的电充电系统 图像，通过使用在感光体上的较短波长的辐射去除，以避免长期变化。其中其次。 下一打印图像手术开始前可以使用的再充电循环。