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    Image transfer apparatus, image fixing apparatus, and registration apparatus
    2.
    发明申请
    Image transfer apparatus, image fixing apparatus, and registration apparatus 有权
    图像转印装置，图像定影装置和配准装置

    公开(公告)号：US20090060613A1

    公开(公告)日：2009-03-05

    申请号：US12222348

    申请日：2008-08-07

    申请人： Hiromichi Matsuda ,  Toshiyuki Andoh ,  Takashi Hashimoto ,  Takashi Hodoshima ,  Tatsuhiko Oikawa ,  Hidetaka Noguchi ,  Seiji Hoshino ,  Makoto Komatsu

    发明人： Hiromichi Matsuda ,  Toshiyuki Andoh ,  Takashi Hashimoto ,  Takashi Hodoshima ,  Tatsuhiko Oikawa ,  Hidetaka Noguchi ,  Seiji Hoshino ,  Makoto Komatsu

    IPC分类号： G03G15/00

    CPC分类号： G03G15/1605 ,  G03G15/1665 ,  G03G15/6558 ,  G03G2215/00738

    摘要： A load torque variation upon entry or exit of a sheet into a nipping portion is reduced while a nipping force necessary for image formation is provided. An image transfer apparatus, an image fixing apparatus, or a registration apparatus comprises an opposite roller, a transfer roller, and a compression spring for pressing the opposite roller onto the transfer roller. A sheet of transfer material is transported into a nipping portion between the opposite roller and the transfer roller, where an image on the opposite roller is transferred to the transfer material. The apparatus includes a retaining unit configured to retain a certain distance between the first rotating body and the second rotating body as long as the thickness of the transfer material that passes through the nipping portion remains the same.

    摘要翻译： 在进入或退出片材到夹持部分时的负载扭矩变化减小，同时提供图像形成所需的夹持力。 图像转印装置，图像定影装置或配准装置包括相对的辊，转印辊和用于将相对的辊压在转印辊上的压缩弹簧。 将一片转印材料输送到相对辊和转印辊之间的夹持部分中，其中相对辊上的图像转印到转印材料上。 该设备包括保持单元，其被配置为在第一旋转体和第二旋转体之间保持一定距离，只要穿过夹持部分的转印材料的厚度保持相同即可。

    Driving apparatus and image forming apparatus
    8.
    发明申请
    Driving apparatus and image forming apparatus 有权
    驱动装置和成像装置

    公开(公告)号：US20090162118A1

    公开(公告)日：2009-06-25

    申请号：US12314312

    申请日：2008-12-08

    申请人： Hidetaka Noguchi ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Seiji Hoshino ,  Tatsuhiko Oikawa ,  Takashi Hashimoto

    发明人： Hidetaka Noguchi ,  Toshiyuki Andoh ,  Takashi Hodoshima ,  Seiji Hoshino ,  Tatsuhiko Oikawa ,  Takashi Hashimoto

    IPC分类号： G03G15/00

    CPC分类号： G03G15/2064 ,  G03G15/161 ,  G03G15/5004 ,  G03G2221/1657

    摘要： A driving apparatus includes a driving unit, a driven unit driven by the driving unit, a driving control unit configured to control the driving unit by performing feed-forward control based on feed-forward target data determined in advance to reduce a speed change of the driven unit. The speed change of the driven unit is expressed substantially as a positive half cycle of a sinusoidal waveform having an amplitude and a time duration, and the feed-forward target data is calculated from the amplitude and the time duration to represent a rectangular waveform approximating the positive half cycle of the sinusoidal waveform.

    摘要翻译： 驱动装置包括：驱动单元，由驱动单元驱动的从动单元;驱动控制单元，被配置为通过基于预先确定的前馈目标数据执行前馈控制来控制驱动单元，以减少驱动单元的速度变化 驱动单元。 驱动单元的速度变化基本上表示为具有振幅和持续时间的正弦波形的正半周期，并且从振幅和持续时间计算前馈目标数据，以表示近似于 正弦波形的正半周期。