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    Surface position and velocity measurement for photoreceptor belt
    1.
    发明授权
    Surface position and velocity measurement for photoreceptor belt 有权
    感光带的表面位置和速度测量

    公开(公告)号：US6336019B2

    公开(公告)日：2002-01-01

    申请号：US45037599

    申请日：1999-11-29

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  WOLF BARRY ,  LOFTHUS ROBERT ,  ANDERSON HAROLD

    IPC: G01B11/00 ,  G03G15/01 ,  G03G21/14 ,  H04N1/047 ,  H04N1/12 ,  G03G15/00

    CPC classification number: H04N1/0473 ,  G03G15/0152 ,  G03G15/0168 ,  G03G2215/0161 ,  G03G2215/017 ,  H04N1/12 ,  H04N2201/04712 ,  H04N2201/04722 ,  H04N2201/04734

    Abstract: Systems and methods are provided that improve the registration between the color separation images. The systems and methods control the output of the image data for one or more of the color separation images and the velocity of an image-carrying member to remove or reduce registration offsets based on determined position and velocity of the image-carrying member. A position-determining sensor on an image-carrying member device module is used to determine the process-direction position of the image-carrying member to provide real time motion information by simultaneously sensing a plurality of position-determining marks. A position-determining controller determines the process-direction position of the image-carrying member by detecting the plurality of position-determining marks using the position-determining sensor and averaging or correlating the detected data.

    Abstract translation: 提供了改善颜色分离图像之间的配准的系统和方法。 系统和方法基于图像承载构件的确定的位置和速度来控制一个或多个颜色分离图像的图像数据的输出和图像承载构件的速度，以移除或减少对准偏移。 使用图像承载构件装置模块上的位置确定传感器来确定图像承载构件的处理方向位置，以通过同时感测多个位置确定标记来提供实时运动信息。 位置确定控制器通过使用位置确定传感器检测多个位置确定标记来确定图像载体的处理方向位置，并对检测到的数据进行平均或相关。

    6.
    发明专利
    未知

    公开(公告)号：DE60220195D1

    公开(公告)日：2007-07-05

    申请号：DE60220195

    申请日：2002-01-16

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  DEJONG JOANNES N M ,  WILLIAMS LLLOYD A ,  ANDERSON HAROLD M

    IPC: B41J11/46 ,  B41J19/18

    Abstract: An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.

    9.
    发明专利
    未知

    公开(公告)号：DE69321999D1

    公开(公告)日：1998-12-17

    申请号：DE69321999

    申请日：1993-06-15

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  ANDERSON HAROLD M

    IPC: B41J2/525 ,  F16H7/02 ,  G03G15/00 ,  G03G15/01 ,  H04N1/46

    Abstract: In an image forming device, the inherent eccentricities of the photosensitive belts or drums and the timing belt speed reduction drive trains cause misregistration of the developed latent images. To prevent such misregistration, the timing belt (48) of the speed reduction drive train (42) has a peripheral length which is selected from a range of values dependent on a preselected speed reduction ratio n between the driven pulley (46) and the driving pulley (44). Further, each one of the range of values is an integral improper fraction or integral multiple of the circumference of the driven pulley. Moreover, the driving pulley (50) of the last pulley belt set coupled to the photosensitive member (40) and a driven pulley (46) prior to the last pulley belt set rotate n full rotations as the photosensitive member rotates from the image forming location to the image transfer location. In conjunction, every speed reduction ratio of all pulley belt sets prior to the last pulley belt set is an integer value. Thus, the eccentricities will be self-compensated.

    10.
    发明专利
    未知

    公开(公告)号：DE69314696T2

    公开(公告)日：1998-05-20

    申请号：DE69314696

    申请日：1993-05-10

    Applicant: XEROX CORP

    Inventor： CASTELLI VITTORIO ,  CASELLA JAMES M ,  WILLIAMS LLOYD ,  DE JONG JOANNES

    IPC: B41J2/525 ,  F16C23/10 ,  F16D3/04 ,  G01D5/245 ,  G03G15/01 ,  G03G21/00 ,  F16D3/00

    Abstract: An encoder interface for interfacing an encoder having a first part (104) defining a first axis to a structure having a second part (106) defining a second axis substantially parallel to the first axis includes a portion for translating the first part (104) with respect to the second part (106) in a direction transverse to the first axis and a portion for rigidly rotationally stabilizing the first part (104) with respect to the second part (106) against a rotation of the first part (104) about the first axis induced by a translation of the first part (104) with respect to the second part (106) in the direction transverse to the first axis. A method for interfacing an encoder having a first part (104) defining a first axis with a structure having a second part (106) defining a second axis substantially parallel to the first axis includes the steps of translating the first part (104) with respect to the second part (106) in a direction transverse to the first axis and rigidly rotationally stabilizing the first part (104) with respect to the second part (106) against a rotation of the first part (104) about the first axis induced by a translation of the first part (104) with respect to the second part (106) in the direction transverse to the first axis.

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