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    1.
    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

    Inventor： CASELLA JAMES M ,  COSTANZA DANIEL W ,  LOFTHUS ROBERT M ,  OMELCHENKO MARK A ,  MARTIN MICHAEL J ,  HOU JAMES S ,  WING JOSEPH M ,  FURST MICHAEL R ,  LACAYO ORLANDO J ,  ADILETTA MARK A ,  LEO MICHAEL F ,  AHL DAVID K ,  BRESSLER LOUIS J ,  SIRIANNI JOHN F

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

    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.

    2.
    发明专利
    未知

    公开(公告)号：DE69318643T2

    公开(公告)日：1998-11-26

    申请号：DE69318643

    申请日：1993-08-09

    Applicant: XEROX CORP

    Inventor： MARTIN MICHAEL J ,  MOORE STEVEN R ,  SOKAC RUSSELL J ,  LAFFEY KATHLEEN ,  SIEGEL ROBERT P ,  GARAVUSO GERALD M ,  DURFEY LLOYD W

    IPC: B65H43/00 ,  B65H7/02 ,  G03G15/00

    Abstract: A sheet path velocity profile signature analysis apparatus which utilizes output from various idler rolls (82) throughout the machine paper path to detect abnormalities. The idler rolls (82) are in frictional contact with device rolls (84) defining therewith a nip through which individual sheets pass. The idler rolls (82) are coupled to an encoder (86) for generating a signal as a function of the rotational speed of the idler rolls (82). The constantly monitored and instantaneous velocity readings are compared with a base line velocity signature established at the factory. If the constantly monitored velocity profile is not within the pre-established operating parameters as set at the factory, automatic machine adjustment procedures are initiated and/or automatic service alerts are issued. The ability to constantly monitor the velocity profile throughout the machine enables preventative maintenance to occur and worn drive rolls, idler rolls and other transport devices can be replaced before catastrophic failure.

    3.
    发明专利
    未知

    公开(公告)号：BR9605224A

    公开(公告)日：1998-07-21

    申请号：BR9605224

    申请日：1996-10-23

    Applicant: XEROX CORP

    Inventor： MARTIN MICHAEL J ,  DOMOTO GERALD A ,  HOLLAR THOMAS C ,  AYASH KARL B ,  PANIDES ELIAS

    IPC: G03G15/00 ,  G03G15/20 ,  G03G21/20

    Abstract: An apparatus for maintaining a uniform temperature along its axis by increasing the heat transfer efficiency. The apparatus uses a sealed chamber containing a substantially pure working fluid in a two phase (liquid and vapor) condition. The vaporization and condensation of the fluid increases the heat transfer efficiency and tends to equalize temperature gradients in a body in contact with the apparatus. The apparatus is utilized in various locations in an electrophotographic printing machine and can be used as a pressure roll for a heat and pressure fuser, a support or drive roll for a photoreceptive member, a support member for a photoreceptor and a heat sink for a developer housing.

    4.
    发明专利
    未知

    公开(公告)号：BR9404061A

    公开(公告)日：1995-06-13

    申请号：BR9404061

    申请日：1994-10-11

    Applicant: XEROX CORP

    Inventor： FULLERTON JACK K ,  PREVOST CHARLES F ,  TABER MICHELE D ,  MITCHEL JAMES O ,  MARTIN MICHAEL J ,  BECKER RICHARD A

    IPC: G03G15/00 ,  B65H85/00 ,  H04N1/00 ,  H04N1/04 ,  G03G21/00

    Abstract: A document handling system particularly suitable for electronic imaging by sequentially feeding uppermost document sheets (18) stacked in an input tray (20) to be imaged in forward serial order at an imaging station (16) and restacked collated in an output tray (22), with a short and compact "U" shaped common document feeding path also providing the majority of a duplex document feeding path (24) for returning duplex document sheets imaged on their first sides back to the imaging station for imaging their second sides. The input and output trays are in a space saving closely superposed relationship defining a protective confining inverter chute space therebetween within which the duplex document sheets may be fed out over the output tray by a dual mode reversible output sheet feeder at the "U" shaped path output and then reversed to feed back through a short linear duplex document feeding path into the entrance of the same "U" shaped document sheet feeding path for simplex document sheets to provide a duplex loop path.

    5.
    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

    Inventor： CASELLA JAMES M ,  COSTANZA DANIEL W ,  OMELCHENKO MARK A ,  MARTIN MICHAEL J ,  HOU JAMES S ,  WING JOSEPH M ,  FURST MICHAEL R ,  LACAYO ORLANDO J ,  ADILETTA MARK A ,  LEO MICHAEL F ,  AHL DAVID K ,  BRESSLER LOUIS J ,  SIRIANNI JOHN F ,  LOFTHUS ROBERT M

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

    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.

    8.
    发明专利
    未知

    公开(公告)号：DE69318643D1

    公开(公告)日：1998-06-25

    申请号：DE69318643

    申请日：1993-08-09

    Applicant: XEROX CORP

    Inventor： MARTIN MICHAEL J ,  MOORE STEVEN R ,  SOKAC RUSSELL J ,  LAFFEY KATHLEEN ,  SIEGEL ROBERT P ,  GARAVUSO GERALD M ,  DURFEY LLOYD W

    IPC: B65H43/00 ,  B65H7/02 ,  G03G15/00

    Abstract: A sheet path velocity profile signature analysis apparatus which utilizes output from various idler rolls (82) throughout the machine paper path to detect abnormalities. The idler rolls (82) are in frictional contact with device rolls (84) defining therewith a nip through which individual sheets pass. The idler rolls (82) are coupled to an encoder (86) for generating a signal as a function of the rotational speed of the idler rolls (82). The constantly monitored and instantaneous velocity readings are compared with a base line velocity signature established at the factory. If the constantly monitored velocity profile is not within the pre-established operating parameters as set at the factory, automatic machine adjustment procedures are initiated and/or automatic service alerts are issued. The ability to constantly monitor the velocity profile throughout the machine enables preventative maintenance to occur and worn drive rolls, idler rolls and other transport devices can be replaced before catastrophic failure.

    9.
    发明专利
    未知

    公开(公告)号：DE69222662T2

    公开(公告)日：1998-05-07

    申请号：DE69222662

    申请日：1992-01-02

    Applicant: XEROX CORP

    Inventor： MOORE STEVEN R ,  MARTIN MICHAEL J ,  SOKAC RUSSELL J

    IPC: B41J2/44 ,  G03G21/00 ,  G03G15/00 ,  G03G15/04 ,  G03G15/043

    Abstract: A copy machine includes a photoreceptor (10) for storing a document image, a transfer station (D) for transferring a stored document image to a sheet of copy paper at a transfer location, a supply tray (33) for storing a quantity of copy sheets (31), transport rollers (17, 19) for conveying copy sheets along a path from the supply tray to the transfer location, a detector (40) for detecting a misfeed in the path and for outputting a misfeed signal, and a controller (82) for preventing an image on the photoreceptor from entering the transfer location upon receipt of the misfeed signal. Transfer of the document image from the photoreceptor to a copy sheet takes place after the misfeed has cleared.

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