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    Color image-forming apparatus
    67.
    发明授权
    Color image-forming apparatus 有权
    一种用于形成彩色图像

    公开(公告)号：EP1517539B1

    公开(公告)日：2010-02-24

    申请号：EP04028760.9

    申请日：2000-03-09

    Applicant: CANON KABUSHIKI KAISHA

    Inventor： Kato, Manabu

    IPC: H04N1/50 ,  H04N1/04

    CPC classification number: H04N1/053 ,  G02B26/123 ,  G02B26/127 ,  H04N1/1135 ,  H04N1/1911 ,  H04N1/506 ,  H04N2201/02439 ,  H04N2201/04713 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04758 ,  H04N2201/04781 ,  H04N2201/04794

    Abstract: A multibeam scanning optical apparatus comprises a light source, an incident optical system, an optical deflector, a scanning optical system, a detection optical element, and a photodetector. A plurality of light beams modulated in accordance with information signals are emitted from the light source and lead to the optical deflector, typically a rotary polygon mirror, by way of the incident optical system, typically a collimator lens and a cylindrical lens. The light beams deflected by the optical deflector are then focussed on a surface to be scanned, typically a photosensitive drum, by way of the scanning optical system having an f&thetas; characteristic. Part of the deflected light beams are lead to the photodetector by way of the detection optical system in order to control the timing of the start of scanning so that the centers of the scanning areas of the plurality of light beams agree with each other on the surface to be scanned. In case of a color image forming apparatus comprising a plurality of scanning optical apparatus, the above control scheme can be applied even when the scanning optical apparatus have a single beam light source.

    Apparatus and method for registering an image on a recording medium
    68.
    发明公开
    Apparatus and method for registering an image on a recording medium 失效
    装置和用于使一个图像到寄存器的记录介质上的方法。

    公开(公告)号：EP0471996A2

    公开(公告)日：1992-02-26

    申请号：EP91112395.8

    申请日：1991-07-24

    Applicant: MANAGEMENT GRAPHICS, INC.

    Inventor： Olson, Thor A. ,  Keeney, Richard A.

    IPC: H04N1/04 ,  H04N1/036 ,  H04N5/87

    CPC classification number: H04N1/047 ,  H04N1/036 ,  H04N1/1004 ,  H04N5/87 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/0315 ,  H04N2201/0471 ,  H04N2201/04718 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04758 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

    Abstract: Registration of an image with respect to a recording medium in a film recorder or the like is provided by first roughly positioning the recording medium in a support. A beam is then scanned across an unused portion of the recording medium until it impinges a fixed reference mark such as a sprocket hole edge. The coordinates of the beam are determined at the reference mark, and a registration signal is computed therefrom. The beam is then scanned across the recording medium in response to the registration signal to record information in registered relation to the reference mark. An intensity profile of the beam is calculated as it passes over an edge of the recording medium. The focus of the beam is then adjusted according to the intensity profile. Adjustment of both beam focus and lens focus is provided.

    Abstract translation: 相对于在胶片记录器或记录介质等的图像的配准是通过首先粗略地在支撑记录介质的定位提供。 甲束然后横跨记录媒体的未使用部分的孔缘扫描，直到其撞击检查作为链轮固定参考标记。 光束的坐标被确定的开采在基准标记，和一个登录信号是从计算那里。 该光束然后在该记录介质扫描响应于所述登记信号以记录在注册相对于参考标记的信息。 在其经过，以在记录介质的边缘处的光束的强度分布进行计算。 所述光束的焦点，然后雅丁到的强度分布进行调整。 提供两个光束聚焦和透镜焦点的调整。

    Image position detecting device and image forming apparatus
    70.
    发明专利
    Image position detecting device and image forming apparatus 审中-公开
    图像位置检测装置和图像形成装置

    公开(公告)号：JP2013007738A

    公开(公告)日：2013-01-10

    申请号：JP2012058082

    申请日：2012-03-15

    Applicant: Ricoh Co Ltd ,  株式会社リコー

    Inventor： SATO MASAHIKO ,  YANADA TOSHIO ,  HASHIGUCHI MASAFUMI ,  AKAISHI MASATAKA ,  NAKA SOICHIRO ,  YAMAMOTO SHUJI

    IPC: G01B11/00 ,  G03G15/01 ,  G03G21/14

    CPC classification number: H04N1/1135 ,  H04N1/047 ,  H04N1/506 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04758

    Abstract: PROBLEM TO BE SOLVED: To provide an image position detecting device capable of accurately detecting a position of an image end, and an image forming apparatus equipped with the image position detecting device.SOLUTION: The position detecting device that detects a position of an end of a pattern image of a correction pattern formed on an intermediate transfer belt comprises: a light emitting part 17D configured to emit light toward the correction pattern; a mirror-reflection light receiving part 17Hs configured to receive mirror-reflection light mirror-reflected by the surface of the pattern image; and a diffuse-reflection light receiving part 17Hr that receives diffuse-reflection light diffuse-reflected by the surface. The position of the end of the pattern image is obtained based on a product obtained by multiplying a mirror-reflection light received signal value of the mirror-reflection light receiving part 17Hs, a diffuse-reflection light received light signal value of the diffuse-reflection light receiving part 17Hr, and a certain coefficient.

    Abstract translation: 要解决的问题：提供一种能够精确地检测图像端的位置的图像位置检测装置和配备有图像位置检测装置的图像形成装置。 检测形成在中间转印带上的校正图案的图案图像的端部的位置的位置检测装置包括：发光部17D，被配置为朝向校正图案发光; 镜像反射光接收部17H，被配置为接收由所述图案图像的表面镜面反射的镜面反射光; 以及接收由表面漫反射的漫反射光的漫反射光接收部17Hr。 基于通过将镜面反射光接收部分17Hs的镜像反射光接收信号值乘以漫反射光接收信号值的漫反射光接收信号值获得的乘积来获得图案图像的结束位置 光接收部17Hr，一定系数。 版权所有（C）2013，JPO＆INPIT

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