4.
    发明专利
    未知

    公开(公告)号:DE60017064T2

    公开(公告)日:2005-05-25

    申请号:DE60017064

    申请日:2000-12-11

    Applicant: XEROX CORP

    Abstract: A single pass multi-colour electrophotographic printing machine, comprises a photoconductive member (10) defining a timing aperture, the member moving along a path in a printing machine and a plurality of imaging devices (C,D), each one of the plurality of imaging devices writing a latent image on the photoconductive member (10). The system further includes a sensor (100), located adjacent the photoconductive member (10), to sense the aperture in the photoconductive member (10) as it passes the sensor (100) and generate a signal indicative thereof and a control device (90), which generates a timing signal for each of the plurality of imaging devices (C, D) as a function of the signal generated by the sensor (100) and a plurality of predetermined parameters.

    5.
    发明专利
    未知

    公开(公告)号:BR0105748A

    公开(公告)日:2002-07-02

    申请号:BR0105748

    申请日:2001-11-29

    Applicant: XEROX CORP

    Abstract: A belt drive module and a corresponding method includes or employs a belt (10) that moves along a path, at least one support roller (12) or other structure that supports the belt as it moves along the path, a drive roller (11) that effects movement of the belt along the path, a tension roller (74) that applies a tension force to the belt in order to maintain engagement of the belt with the drive and/or support rollers, at least one processing station (e.g., an image processing station) disposed along the path that performs a process relative to a predetermined position of the belt, and a torque assist drive that applies a torque assist force (Td) at a location between the drive roller and the tension roller. Torque assist may be provided by a current limited DC motor or by a constant torque friction clutch applied to a roller (66), e.g., a stripper roller of an electrophotographic imaging system. Advantageously, the torque assist force (Td) facilitates accurate positioning of the belt (e.g., latent image registrations in a color imaging process employing multiple imaging processing stations) by reducing slippage between the drive roller and the belt that may be encountered due to belt wear, toner contamination and/or other debris.

    CONTROL SYSTEM UTILIZING VIRTUAL BELT HOLES

    公开(公告)号:CA2327036C

    公开(公告)日:2002-10-01

    申请号:CA2327036

    申请日:2000-11-29

    Applicant: XEROX CORP

    Abstract: A system and method for controlling the imaging device in a single pass multi color electrophotographic printing machine, comprising a photoconducti ve member defining a timing aperture, the member moving along a path in a printing machine and a plurality of imaging devices, each one of the plurality of imaging devices writing a latent image on the photoconductive member. The system further includes a sensor, located adjacent the photoconductive member, to sense the aperture in the photoconductive member as it passes the sensor and generate a signal indicative thereof and a control device, which generates a timing signal for each of the plurality of imaging devices as a function of the signal generat ed by the sensor and a plurality of predetermined parameters.

    10.
    发明专利
    未知

    公开(公告)号:BR0105748B1

    公开(公告)日:2014-08-12

    申请号:BR0105748

    申请日:2001-11-29

    Applicant: XEROX CORP

    Abstract: A belt drive module and a corresponding method includes or employs a belt (10) that moves along a path, at least one support roller (12) or other structure that supports the belt as it moves along the path, a drive roller (11) that effects movement of the belt along the path, a tension roller (74) that applies a tension force to the belt in order to maintain engagement of the belt with the drive and/or support rollers, at least one processing station (e.g., an image processing station) disposed along the path that performs a process relative to a predetermined position of the belt, and a torque assist drive that applies a torque assist force (Td) at a location between the drive roller and the tension roller. Torque assist may be provided by a current limited DC motor or by a constant torque friction clutch applied to a roller (66), e.g., a stripper roller of an electrophotographic imaging system. Advantageously, the torque assist force (Td) facilitates accurate positioning of the belt (e.g., latent image registrations in a color imaging process employing multiple imaging processing stations) by reducing slippage between the drive roller and the belt that may be encountered due to belt wear, toner contamination and/or other debris.

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