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    SHEET DETECTING DEVICE AND IMAGE FORMING DEVICE
    1.
    发明公开
    SHEET DETECTING DEVICE AND IMAGE FORMING DEVICE 审中-公开
    BLATTERKENNUNGSVORRICHTUNG UNDBILDERZEGUNGSGERÄT

    公开(公告)号：EP2492225A1

    公开(公告)日：2012-08-29

    申请号：EP09850567.0

    申请日：2009-10-20

    申请人： Canon Kabushiki Kaisha

    发明人： FURUSAWA Motohiro ,  WATANABE Kenji ,  KAWANISHI Minoru

    IPC分类号： B65H7/02

    CPC分类号： B65H5/26 ,  B65H7/14 ,  B65H43/08 ,  B65H2403/512 ,  B65H2404/1114 ,  B65H2404/1521 ,  B65H2511/51 ,  B65H2513/514 ,  B65H2553/412 ,  B65H2553/61 ,  B65H2553/612 ,  B65H2801/06 ,  G03G15/235 ,  G03G15/6564 ,  G03G2215/00586 ,  G03G2215/00599 ,  G03G2215/00616 ,  G03G2215/00628 ,  G03G2215/00721 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/11

    摘要： In a related-art sheet detecting device including a flag rotating while being in contact with the leading edge of a sheet, it is difficult to improve productivity related to sheet conveyance by increasing a sheet conveying speed or reducing the interval between sheets successively conveyed.
    A sheet detecting device includes a sensor flag member 23 that is pressed and rotated by the leading edge of a conveyed sheet. The sensor flag member 23 is on standby in a standby position where the leading edge of the conveyed sheet abuts an abutment surface of the sensor flag member 23. An optical sensor 24 detects the conveyed sheet on the basis of a posture of the sensor flag member 23 pressed by the leading edge of the conveyed sheet. The sensor flag member 23 is rotatable to a sheet passage posture where the sheet is allowed to pass. After the trailing edge of the conveyed sheet passes the sensor flag member 23, the sensor flag member 23 is rotated from the sheet passage posture in the same direction as a sheet conveying direction and is positioned in the standby position.

    摘要翻译： 在具有与片材的前缘接触的标志旋转的现有技术的片材检测装置中，通过增加片材输送速度或减小相继输送的片材之间的间隔，难以提高与片材输送相关的生产率。 片材检测装置包括被传送的片材的前缘按压并旋转的传感器标志部件23。 传感器标志构件23处于备用位置，其中传送片的前缘邻接传感器标志构件23的邻接表面。光学传感器24基于传感器标志构件的姿势来检测传送的片材 23被传送的片材的前缘按压。 传感器标志构件23能够转动到允许纸张通过的纸张通过姿态。 在所传送的纸张的后缘通过传感器标志部件23之后，传感器标志部件23从纸张通过状态沿与片材输送方向相同的方向旋转并且位于待机位置。

    Sheet thickness detector and image forming apparatus including same
    4.
    发明公开
    Sheet thickness detector and image forming apparatus including same 审中-公开
    片材厚度检测器和包括其的图像形成装置

    公开(公告)号：EP2685317A3

    公开(公告)日：2017-11-29

    申请号：EP13174818.8

    申请日：2013-07-03

    申请人： Ricoh Company, Ltd.

    发明人： Wakabayashi, Yuu ,  Takenaka, Ryo ,  Satoh, Masashi ,  Nishizaki, Shingo ,  Ozaki, Yusuke ,  Ikeda, Yuji ,  Okamura, Hiroshi ,  Funada, Naohiro ,  Kondoh, Tomohide

    IPC分类号： G03G15/00

    CPC分类号： B65H5/068 ,  B65H7/12 ,  B65H7/14 ,  B65H7/20 ,  B65H2404/144 ,  G03G15/5029 ,  G03G2215/00628 ,  G03G2215/00738

    摘要： A sheet thickness detector (40) incorporated in an image forming apparatus (1000) includes a sheet conveying member (41) rotating and conveying a sheet (P) in a sheet conveyance direction, a driven sheet conveying member (50, 52) contacting the sheet conveying member (41) and form at least one first transfer nip therebetween in a lateral direction and displacing by an amount equivalent to a thickness of the sheet (P) passing through the first transfer nip and rotated with the sheet conveying member (41) in the sheet conveyance direction, a first displacement member (60) contacting the sheet conveying member (41) and form a second transfer nip in the lateral direction and displacing by an amount equivalent to the thickness of the sheet (P) passing through the second transfer nip, and a displacement amount detector (44) detecting an amount of displacement of the first displacement member (60).

    摘要翻译： 包含在图像形成设备（1000）中的纸张厚度检测器（40）包括：纸张传送部件（41），用于在纸张传送方向上旋转并传送纸张（P）;传送纸张传送部件（50,52） 并且在横向方向上形成至少一个第一转印辊隙并且移动的量等于通过第一转印辊隙并且与纸张传送部件（41）一起旋转的纸张（P）的厚度， 在片材输送方向上，第一移位构件（60）与片材输送构件（41）接触并在横向方向上形成第二转印夹持部，并且移动的量等于穿过第二片材（P）的片材 转印夹，以及检测第一移位构件（60）的移位量的移位量检测器（44）。

    Sheet registration calibration
    6.
    发明公开
    Sheet registration calibration 失效
    Kalibrierungfüreine Blattausrichtevorrichtung。

    公开(公告)号：EP0420558A2

    公开(公告)日：1991-04-03

    申请号：EP90310443.8

    申请日：1990-09-25

    申请人： XEROX CORPORATION

    发明人： Dastin, Richard M.

    IPC分类号： B65H9/14 ,  B65H85/00 ,  G03G15/00

    CPC分类号： G03G15/0131 ,  G03G15/6564 ,  G03G2215/00409 ,  G03G2215/00599 ,  G03G2215/00628 ,  G03G2215/00721

    摘要： A method of calibrating registration of a sheet with a sheet gripper (84) on a moving transport (48). The sheet gripper (84) is adapted to move the sheet in a recirculating path in a printing machine. Movement of the sheet gripper (84) and sheet is timed from a reference time until each reaches a loading zone, as detected by a sensor (96). The times are compared to a preselected time and the movement of the sheet gripper (84) and sheet adjusted to correspond to the preselected time. In this way, the sheet and sheet gripper (84) arrive at the loading zone simultaneously.

    摘要翻译： 一种用于在移动的运送装置（48）上校准纸张夹持器（84）的配准的方法。 片材夹持器（84）适于在打印机中的再循环路径中移动片材。 如由传感器（96）检测到的，片材夹持器（84）和片材的移动从参考时间定时直到每个到达加载区域。 将时间与预选时间进行比较，并且片材夹持器（84）和片材的移动被调整为对应于预选的时间。 以这种方式，片材和片材夹持器（84）同时到达装载区域。

    Paper path velocity signature analysis apparatus and method
    10.
    发明公开
    Paper path velocity signature analysis apparatus and method 失效
    Geschwindigkeitsprofilanalysegerätund -methodefürden Papierweg。

    公开(公告)号：EP0583928A2

    公开(公告)日：1994-02-23

    申请号：EP93306282.0

    申请日：1993-08-09

    申请人： XEROX CORPORATION

    发明人： Martin, Michael J. ,  Moore, Steven R. ,  Sokac, Russell J. ,  Laffey, Kathleen ,  Siegel, Robert P. ,  Garavuso, Gerald M. ,  Durfey, Lloyd W.

    IPC分类号： G03G15/00

    CPC分类号： G03G15/65 ,  B65H7/02 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/03 ,  B65H2511/52 ,  B65H2513/10 ,  B65H2515/842 ,  B65H2551/20 ,  B65H2553/41 ,  B65H2557/242 ,  G03G15/553 ,  G03G2215/00371 ,  G03G2215/00628 ,  G03G2215/00679 ,  G03G2215/00746 ,  B65H2220/11

    摘要： 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.

    摘要翻译： 一种纸张路径速度分布特征分析装置，利用来自机器纸路径的各种惰轮（82）的输出来检测异常。 惰轮（82）与限定有单独片材通过的辊隙的装置辊（84）摩擦接触。 空转辊（82）联接到编码器（86），用于产生作为惰轮（82）的转速的函数的信号。 将持续监测和瞬时速度读数与在工厂建立的基线速度签名进行比较。 如果持续监控的速度曲线不在工厂设置的预先确定的运行参数内，则启动自动机器调整程序和/或发出自动服务警报。 在整个机器上不断监测速度曲线的能力使得能够进行预防性维护，并且在灾难性故障之前可以更换驱动辊，惰轮和其他运输设备。