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    Driving a retard feeder in reverse prior to sheet feeding
    1.
    发明专利
    Driving a retard feeder in reverse prior to sheet feeding 未知

    公开(公告)号：GB2486341A

    公开(公告)日：2012-06-13

    申请号：GB201121018

    申请日：2011-12-07

    Applicant: XEROX CORP

    Inventor： HAGOS SAMUEL ,  PEARCE CHRISTOPHER ,  WOOD STEPHEN P ,  HUBBARD RICHARD G ,  MCLVER ALLAN ,  CHASE JUSTIN ,  PARKS IAN A ,  FLYNN NEIL

    IPC: B65H3/52

    Abstract: In known fully active retard feeders initial feeding may be poor due to contamination build-up and/or roll "set" when left in position overnight and this may lead to skipped pitches and/or misfeeds during initial feeding. To address this a method for improving the performance in fully active retard feeders includes driving a feed or separation roll 52 and retard roll 53 pair of a sheet feeder backwards prior to feeding sheets S1, S2. The rolls 52, 53 may be driven in a reverse feed direction periodically during idle periods and as part of a warm-up cycle. The reverse driving may increase the temperature of the rolls 52, 53, thereby increasing their coefficient of friction. The reverse driving may also clean surface debris from the rolls 52, 53 and/or allow flat spots on the rolls 52, 53 to relax. The rolls 52, 53 may be driven counterclockwise during reverse feeding. The sheet feeder may form part of reprographic apparatus or a xerographic device.

    Roll nip structure having adaptive pivot position
    4.
    发明专利
    Roll nip structure having adaptive pivot position 有权
    具有自适应位置的ROLL NIP结构

    公开(公告)号：JP2012086985A

    公开(公告)日：2012-05-10

    申请号：JP2011220113

    申请日：2011-10-04

    Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

    Inventor： HAGOS SAMUEL ,  CHAPLIN BEN ,  WATTS CHRISTOPHER FD ,  PARKS IAN A

    IPC: B65H5/06

    CPC classification number: B65H5/062 ,  B65H2402/31 ,  B65H2404/1421 ,  B65H2404/1431 ,  B65H2601/61

    Abstract: PROBLEM TO BE SOLVED: To solve a problem that a roller reference position is shifted when a pair of rollers are worn out.SOLUTION: A printing apparatus includes a marking device, a medium path positioned to supply sheets of mediums to the marking device, and a medium supply tray 120 positioned to supply the sheets of mediums to the medium path. Furthermore, the pair of rollers forms a nip adjacent to the medium supply tray. The rollers rotate in opposite directions to move the sheets of mediums from the medium supply tray to the medium path. Additionally, a first frame member 104 supports a first roller 102. The first frame member can be in a fixed position and holds the first roller in a fixed location. A second frame member 112 supports a second roller 118. The second frame member is adjustable in a first direction via the first roller and has a variable pivot position making the second frame member move in a second direction perpendicular to the first direction.

    Abstract translation: 要解决的问题：为了解决当一对辊磨损时滚子基准位置偏移的问题。 解决方案：打印设备包括标记设备，定位成向打标设备提供介质片材的介质路径以及定位成将介质片材供应到介质路径的介质供应托盘120。 此外，一对辊形成邻近介质供给盘的辊隙。 辊沿相反方向旋转，以将介质供给盘移动到介质路径。 此外，第一框架构件104支撑第一辊102.第一框架构件可处于固定位置并将第一辊保持在固定位置。 第二框架构件112支撑第二辊118.第二框架构件可经由第一辊在第一方向上可调节，并且具有可变的枢转位置，使得第二框架构件沿垂直于第一方向的第二方向移动。 版权所有（C）2012，JPO＆INPIT

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