利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

66 条记录 (耗时 0.025 秒)

    Image forming apparatus
    21.
    发明申请
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US20040183885A1

    公开(公告)日：2004-09-23

    申请号：US10683279

    申请日：2003-10-14

    申请人： FUJI XEROX CO., LTD.

    发明人： Taketoshi Hoshizaki ,  Hidemi Nukada ,  Takahiro Suzuki

    IPC分类号： B41J002/385 ,  G03G015/00

    CPC分类号： G03G15/751 ,  G03G15/04036 ,  G03G15/0435 ,  G03G2215/0404 ,  G03G2215/0407

    摘要： The invention provides an image forming apparatus comprising: an electrophotographic photoreceptor having a conductive substrate and a photosensitive layer provided on the conductive substrate; a charging unit for charging the electrophotographic photoreceptor; an exposure unit for exposing the charged electrophotographic photoreceptor to light thereby forming an electrostatic latent image; a developing unit for developing the electrostatic latent image with toner thereby forming a toner image; and a transfer unit for transferring the toner image from the electrophotographic photoreceptor to a transferred image-receiving medium, wherein said exposure unit is a multi beam exposure unit which has a surface emitting laser array and which carries out the electrostatic latent image formation by scanning the electrophotographic photoreceptor with eight or more light beams; and wherein said electrophotographic photoreceptor gives a quantum efficiency of 0.3 or higher when the electrophotographic photoreceptor is charged to a charged potential absolute value of 500 V and then irradiated with a monochromatic light of the same wavelength as that of said light beams to decay the charged potential absolute value to 250 V.

    摘要翻译： 本发明提供了一种图像形成装置，包括：电子照相感光体，具有导电基底和设置在导电基底上的感光层; 用于对电子照相感光体充电的充电单元; 曝光单元，用于将充电的电子照相感光体曝光，从而形成静电潜像; 显影单元，用于利用调色剂显影静电潜像，从而形成调色剂图像; 以及转印单元，用于将调色剂图像从电子照相感光体转印到转印的图像接收介质上，其中所述曝光单元是具有表面发射激光器阵列的多光束曝光单元，其通过扫描所述图像接收介质进行静电潜像形成 具有八个或更多个光束的电子照相感光体; 并且其中当将电子照相感光体充电到500V的充电电位绝对值时，所述电子照相感光体的量子效率为0.3或更高，然后用与所述光束相同波长的单色光照射以衰减电荷电位 绝对值为250 V.

    Print head and image forming device
    25.
    发明授权
    Print head and image forming device 有权

    公开(公告)号：US12007705B2

    公开(公告)日：2024-06-11

    申请号：US17681226

    申请日：2022-02-25

    申请人： TOSHIBA TEC KABUSHIKI KAISHA

    发明人： Koji Tanimoto

    IPC分类号： B41J2/45 ,  G03G15/04 ,  G03G15/043 ,  H05B45/46 ,  G03G15/00

    CPC分类号： G03G15/04036 ,  B41J2/45 ,  G03G15/043 ,  H05B45/46 ,  G03G15/04054 ,  G03G15/80 ,  G03G2215/0407

    摘要： The print head and light emitting elements, first and second drive circuits, and a control circuit. The light emitting elements and drive circuits are spaced from each other an arrangement pitch. The first drive circuit includes a first capacitor and sets a light emission level for the first light emitting element. The second drive circuit includes a second capacitor and sets a light emission level of the second light emitting element. The control circuit is connected to the first drive circuit by a first wiring and to the second drive circuit by a second wiring and controls voltages across the first and second capacitors individually. A difference between the length of the first wiring and the length of the second wiring is less than the arrangement pitch.

    Optical scanning device, image forming apparatus
    26.
    发明授权
    Optical scanning device, image forming apparatus 有权
    光学扫描装置，成像装置

    公开(公告)号：US09298004B2

    公开(公告)日：2016-03-29

    申请号：US14724717

    申请日：2015-05-28

    申请人： KYOCERA Document Solutions Inc.

    发明人： Shingo Yoshida ,  Hideji Mizutani ,  Takayuki Kurihara

    IPC分类号： G03G15/04 ,  G02B26/10 ,  G02B27/00 ,  G02B26/12 ,  G03G15/01 ,  G03G15/043

    CPC分类号： G03G15/0435 ,  G02B26/105 ,  G02B26/12 ,  G02B26/123 ,  G02B26/124 ,  G02B27/0018 ,  G03G15/011 ,  G03G15/04036 ,  G03G15/04045 ,  G03G15/04072 ,  G03G2215/0402 ,  G03G2215/0404 ,  G03G2215/0407

    摘要： An optical scanning device includes a light source, a scanning member, a converging lens, a first aperture, a second aperture, and a support member. The first aperture is provided between the converging lens and the scanning member and includes a first opening portion configured to restrict a beam path width in a main scanning direction of the laser beams emitted from the light source. The second aperture is provided between the light source and the converging lens and includes a second opening portion and a cylindrical portion. The second opening portion is configured to restrict a beam path width in a sub scanning direction of the laser beams emitted from the light source, and is formed in the cylindrical portion. The support member includes a cylinder supporting portion that pivotably supports the cylindrical portion of the second aperture.

    摘要翻译： 光学扫描装置包括光源，扫描构件，会聚透镜，第一孔，第二孔和支撑构件。 第一开口设置在会聚透镜和扫描构件之间，并且包括被配置为限制从光源发射的激光束的主扫描方向上的光束路径宽度的第一开口部。 第二孔设在光源和会聚透镜之间，并包括第二开口部分和圆柱形部分。 第二开口部被配置为限制从光源发射的激光的副扫描方向的光束路径宽度，并形成在圆筒部。 支撑构件包括可枢转地支撑第二孔的圆柱形部分的气缸支撑部分。

    Light source apparatus, optical-beam scanning apparatus, and image forming apparatus
    27.
    发明授权
    Light source apparatus, optical-beam scanning apparatus, and image forming apparatus 有权
    光源装置，光束扫描装置和图像形成装置

    公开(公告)号：US08169457B2

    公开(公告)日：2012-05-01

    申请号：US12648426

    申请日：2009-12-29

    申请人： Nobuaki Kubo ,  Yasuhiro Naoe ,  Tomohiro Nakajima ,  Naoto Watanabe

    发明人： Nobuaki Kubo ,  Yasuhiro Naoe ,  Tomohiro Nakajima ,  Naoto Watanabe

    IPC分类号： B41J15/14 ,  B41J27/00

    CPC分类号： G03G15/04036 ,  B41J2/45 ,  B41J2/473 ,  G02B26/123 ,  G03G15/0435 ,  G03G2215/0404 ,  G03G2215/0407

    摘要： A light source apparatus includes a circuit board on which a light source unit including a vertical-cavity surface-emitting light source and a package that houses the vertical-cavity surface-emitting light source is mounted, an optical element holder that holds a plurality of optical elements including at least a coupling lens, and an intermediate holder that is arranged between the circuit board and the optical element holder. The intermediate holder is joined to the circuit board to cover an area of the circuit board on which the light source unit is mounted to thereby make contact with the package such that the vertical-cavity surface-emitting light source is positioned and fixed and joined to the optical element holder to thereby position the optical elements to the vertical-cavity surface-emitting light source.

    摘要翻译： 光源装置包括：电路板，其上安装有包括垂直腔表面发射光源的光源单元和容纳垂直腔表面发射光源的封装;光学元件保持器，其保持多个 包括至少耦合透镜的光学元件和布置在电路板和光学元件保持器之间的中间保持器。 中间保持器连接到电路板以覆盖其上安装有光源单元的电路板的区域，从而与封装接触，使得垂直腔表面发射光源被定位和固定并连接到 光学元件保持器，从而将光学元件定位到垂直腔表面发射光源。

    Image forming apparatus, image forming method and image processing apparatus
    28.
    发明授权
    Image forming apparatus, image forming method and image processing apparatus 有权
    图像形成装置，图像形成方法和图像处理装置

    公开(公告)号：US07995086B2

    公开(公告)日：2011-08-09

    申请号：US12579708

    申请日：2009-10-15

    申请人： Nobuhiko Nakahara

    发明人： Nobuhiko Nakahara

    IPC分类号： B41J2/47

    CPC分类号： G03G15/0415 ,  G03G15/0435 ,  G03G15/326 ,  G03G2215/0407

    摘要： An image forming apparatus includes a laser array in which n light emitting sources are arrayed, an image-input converting unit configured to create, for each of channels of the laser array, a recording pattern for executing PWC from input image data and extract recording patterns of an nth channel and a first channel of the next scanning of the laser array, an overlapping control unit configured to calculate the width of laser pulses in the same position in a main scanning direction as overlapping width, a data correcting unit configured to reduce laser pulse width by a reduction amount corresponding to the calculated overlapping width and correct the laser pulse width, and a laser driver configured to control the intensity of laser beams in the respective channels of the laser array according to the recording patterns after the correction.

    摘要翻译： 图像形成装置包括其中排列有n个发光源的激光器阵列，图像输入转换单元，被配置为针对激光器阵列的每个通道创建用于从输入图像数据执行PWC的记录图案，并且提取记录图案 的第n沟道和下一次扫描激光器阵列的第一通道，重叠控制单元，被配置为计算在主扫描方向上的重叠宽度处于相同位置的激光脉冲的宽度;数据校正单元，被配置为减少激光 脉冲宽度减去与计算出的重叠宽度对应的减少量并校正激光脉冲宽度;以及激光驱动器，被配置为根据校正后的记录图案来控制激光器阵列的各个通道中的激光束的强度。

    PHOTORECEPTOR WITH A TFT BACKPLANE FOR XEROGRAPHY WITHOUT A ROS SYSTEM
    30.
    发明申请
    PHOTORECEPTOR WITH A TFT BACKPLANE FOR XEROGRAPHY WITHOUT A ROS SYSTEM 有权
    具有不带ROS系统的XEROGRAPHY的TFT背板的摄像机

    公开(公告)号：US20100201612A1

    公开(公告)日：2010-08-12

    申请号：US12366665

    申请日：2009-02-06

    申请人： Gregory McGuire ,  Vladislav Skorokhod ,  Robert A. Street

    发明人： Gregory McGuire ,  Vladislav Skorokhod ,  Robert A. Street

    IPC分类号： G09G3/36

    CPC分类号： G03G15/32 ,  G03G15/04054 ,  G03G2215/0407

    摘要： Systems and methods are described that facilitate eliminating a need for a raster output scanner (ROS) or laser when generating a latent image on a photoreceptor. An addressable backplane is employed, comprising an array of field effect transistors (e.g., silicon or organic thin film transistors, or TFTs), wherein each TFT corresponds to a single pixel on a charge transport layer on the photoreceptor surface. Latent image formation is performed by forming a surface potential using corona charging, and then directing free charge carriers toward the photoreceptor surface to reduce electrostatic potential in areas that need to be toned. TFTs in the array are individually addressed, or selected, to connect to a common ground, which allows photodischarge to occur only in selected areas (e.g., pixels associated with the selected TFTs). Once the array of TFTs is addressed, an LED light source emits light over the surface of the photoreceptor, and only the selected (grounded) TFTs permit their associated pixels to discharge. In this manner, a latent image is formed without a need for a bulky and expensive ROS.

    摘要翻译： 描述了系统和方法，其在光感受器上产生潜像时有助于消除对光栅输出扫描器（ROS）或激光器的需要。 采用可寻址的背板，其包括场效应晶体管阵列（例如，硅或有机薄膜晶体管或TFT），其中每个TFT对应于感光体表面上的电荷传输层上的单个像素。 通过使用电晕充电形成表面电位，然后将自由电荷载体引导到感光体表面来降低需要调色的区域中的静电潜力来进行潜在的图像形成。 阵列中的TFT被单独寻址或选择以连接到公共地，这允许仅在选定区域（例如，与所选择的TFT相关联的像素）中发生光电荷放电。 一旦解决了TFT阵列，LED光源就会在感光体的表面上发光，只有选定的（接地的）TFT允许其相关像素放电。 以这种方式，形成潜像，而不需要庞大且昂贵的ROS。