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    Sheet feeding apparatus
    1.
    发明授权
    Sheet feeding apparatus 失效
    送纸装置

    公开(公告)号：US5555462A

    公开(公告)日：1996-09-10

    申请号：US111155

    申请日：1993-08-24

    申请人： Hiroshi Fukumoto ,  Naoya Tanaka ,  Keisuke Oda ,  Kazuaki Arimoto ,  Takashi Yoshida ,  Kazuhiko Higashi ,  Yasunori Kasahara ,  Terumi Kuwada

    发明人： Hiroshi Fukumoto ,  Naoya Tanaka ,  Keisuke Oda ,  Kazuaki Arimoto ,  Takashi Yoshida ,  Kazuhiko Higashi ,  Yasunori Kasahara ,  Terumi Kuwada

    IPC分类号： B41J11/00 ,  B41J11/42 ,  B41J13/00 ,  B41J15/04 ,  B41J15/16 ,  B65H5/06 ,  B65H7/02 ,  B41J11/44

    CPC分类号： B41J13/0027 ,  B41J11/0095 ,  B41J11/42

    摘要： A sheet feeding apparatus detects the position of a sheet (30) during feeding thereof and calculates a deviation of the detected sheet position relative to a reference position to thereby enable accurate color printing. A follower roller (41) for detecting a feeding amount of the sheet is in contact with the sheet which is fed by a sheet feeding roller 1, so that is rotated in accordance with the movement of the sheet. A sensor (43) generates an output signal each time the follower roller (41) rotates a predetermined angle of rotation. In one form of the invention, a timing deviation detector (51) is provided for detecting a deviation in the output timing of an output signal of the sensor relative to a reference value. In another form, a rotation angle deviation detector is provided for detecting a deviation in the rotation angle of the sheet feeding roller relative to a reference value each time the sensor generates an output signal. A feeding amount deviation calculator (52) periodically calculates a deviation in the amount of feeding of the sheet relative to a reference feeding amount based on the deviation in the output timing of the sensor output signal of based on the deviation in the rotation angle of the sheet feeding roller each time the follower roller rotates a predetermined rotation angle.

    摘要翻译： 片材进给装置在进给期间检测片材（30）的位置，并计算检测到的片材位置相对于基准位置的偏差，从而能够进行精确的彩色印刷。 用于检测片材的供给量的从动辊（41）与由片材进给辊1供给的片材接触，从而根据片材的移动而旋转。 每当从动辊（41）旋转预定旋转角度时，传感器（43）产生输出信号。 在本发明的一种形式中，提供了一种定时偏差检测器（51），用于检测传感器的输出信号相对于参考值的输出定时的偏差。 在另一种形式中，设置有旋转角偏差检测器，用于每当传感器产生输出信号时，检测供纸辊相对于参考值的旋转角度的偏差。 进给量偏差计算器（52）基于传感器输出信号的输出定时的偏差，基于旋转角度的偏差，周期性地计算纸张相对于基准供给量的进给量的偏差 每当从动辊旋转预定的旋转角度时，送纸辊。