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    Method and apparatus for eliminating positional deviations of a photosensitive drum driven by a stepping motor which is by half steps
    1.
    发明授权
    Method and apparatus for eliminating positional deviations of a photosensitive drum driven by a stepping motor which is by half steps 有权
    用于消除由步进电机驱动的感光鼓的位置偏差的方法和装置，其为半步

    公开(公告)号：US6118963A

    公开(公告)日：2000-09-12

    申请号：US186069

    申请日：1998-11-05

    申请人： Teruhiko Fujikura ,  Toshikazu Higashi ,  Tomonobu Tamura ,  Akira Takasu

    发明人： Teruhiko Fujikura ,  Toshikazu Higashi ,  Tomonobu Tamura ,  Akira Takasu

    IPC分类号： B41J2/44 ,  G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  G03G21/00 ,  G03G21/14 ,  H04N1/50

    CPC分类号： G03G15/5008 ,  H04N1/506 ,  G03G2215/0119

    摘要： An apparatus and method for eliminating position deviations of a photosensitive drum which is rotated by a stepping motor driven by full step and half step drive pulses. The apparatus includes a photosensitive drum, a stepping motor which rotates the photosensitive drum; and a controller which controls the stepping motor to be driven with half step drive pulses when the photosensitive drum is being scanned. In the apparatus and method, a scanning starting control is performed by driving the stepping motor by full step drive pulses so that salient poles of the rotor are aligned with salient poles of the stator such that the rotor is in a stable position. The full step drive pulses are switched to half step drive pulses before scanning is started, and the scanning of the photosensitive drum is started on an even numbered half step drive pulse.

    摘要翻译： 一种用于消除由全步和半步驱动脉冲驱动的步进电机旋转的感光鼓的位置偏差的装置和方法。 该装置包括感光鼓，使感光鼓旋转的步进电机; 以及控制器，当感光鼓被扫描时，控制步进马达被驱动的半步驱动脉冲。 在该装置和方法中，通过全步驱动脉冲驱动步进电机，使转子的凸极与定子的凸极对齐，使转子处于稳定位置，进行扫描启动控制。 在扫描开始之前，将全步驱动脉冲切换到半步驱动脉冲，并且在偶数半步驱动脉冲上开始感光鼓的扫描。

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US06166510A

    公开(公告)日：2000-12-26

    申请号：US210983

    申请日：1998-12-14

    申请人： Toshikazu Higashi ,  Tomonobu Tamura ,  Teruhiko Fujikura ,  Akira Takasu

    发明人： Toshikazu Higashi ,  Tomonobu Tamura ,  Teruhiko Fujikura ,  Akira Takasu

    IPC分类号： G03G21/14 ,  G03G15/00 ,  H02P8/14 ,  H02K37/00

    CPC分类号： G03G15/5008 ,  G03G2215/0119

    摘要： In an image forming apparatus which forms images by transferring to a transfer drum a toner image formed on the surface of the photosensitive member directly driven by a stepping motor, the relationship between the stepping angle ".theta." (.degree.) of the stepping motor and the rotational speed "N" (rpm) of the photosensitive drum is expressed by the equation .theta..ltoreq.(360.times.N)/(60.times.a.times.b). Where "a" is a natural number, optimally 10, which is less than the initial predetermined tolerance value when the harmonic content of rotational variation generated by the step period of the stepping motor is "1/a", and "b" is the target frequency (Hz) of 100.

    摘要翻译： 在通过转印到转印鼓上形成图像的图像形成装置中，形成在由步进电动机直接驱动的感光部件的表面上的调色剂图像，步进电机的步进角θ（θ）与 感光鼓的旋转速度“N”（rpm）由等式θ

    Image forming apparatus
    5.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US08463162B2

    公开(公告)日：2013-06-11

    申请号：US12937690

    申请日：2009-08-19

    申请人： Yuji Kobayashi ,  Hiroyuki Yoshikawa ,  Teruhiko Fujikura ,  Munehiro Natsume ,  Mutsuto Oe ,  Katsuyuki Ikuta ,  Yasushi Hieno

    发明人： Yuji Kobayashi ,  Hiroyuki Yoshikawa ,  Teruhiko Fujikura ,  Munehiro Natsume ,  Mutsuto Oe ,  Katsuyuki Ikuta ,  Yasushi Hieno

    IPC分类号： G03G15/00

    CPC分类号： G03G15/6529 ,  F16H9/20 ,  G03G15/5008 ,  G03G21/14 ,  G03G2215/00738

    摘要： The present invention is capable of changing the system speed quickly and highly accurately while using a CVT device with an advantage in its quietness to transmit a driving force to rotative parts.Specifically, in the case of using a sheet of thick paper as a recording sheet, the controller changes, for each of the pulleys, the distance between the pulley segments (S204) while starting up the DC motor as the driving source (S202). After that, the controller performs the feedback control on the rotation of the DC motor, based on a detection signal received from the encoder of the load shaft of the driven pulley, to achieve the target rotation speed of the load shaft (S206: NO, S207).

    摘要翻译： 本发明能够快速，高精度地改变系统速度，同时使用具有安静性的CVT装置将驱动力传递给旋转部件。 具体地说，在使用一张厚纸作为记录纸的情况下，控制器在启动作为驱动源的直流电动机时，针对每个滑轮改变滑轮段之间的距离（S204）（S202）。 之后，控制器基于从从动皮带轮的负载轴的编码器接收到的检测信号，对直流电动机的旋转进行反馈控制，以实现负载轴的目标转速（S206：否， S207）。

    Image forming apparatus, fixing device, and image forming system using the same
    6.
    发明授权
    Image forming apparatus, fixing device, and image forming system using the same 失效
    图像形成装置，定影装置和使用其的图像形成系统

    公开(公告)号：US08417136B2

    公开(公告)日：2013-04-09

    申请号：US12962171

    申请日：2010-12-07

    申请人： Teruhiko Fujikura ,  Toru Kasamatsu ,  Tadayuki Ueda ,  Yoshihito Sasamoto ,  Satoshi Miyajima

    发明人： Teruhiko Fujikura ,  Toru Kasamatsu ,  Tadayuki Ueda ,  Yoshihito Sasamoto ,  Satoshi Miyajima

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2006

    摘要： Provided are an image forming apparatus, a fixing device, and an image forming system using the same, including: an image forming section for transferring a toner image onto a recording sheet; a first and second fixing rollers for thermally fixing the toner image on the recording sheet; a first and second temperature sensors each provided at a plurality of positions in a longitudinal direction of the fixing roller; and a rocking section for reciprocally shifting at least one of the fixing rollers in the longitudinal direction of the fixing roller, wherein the temperature gradient of each of the fixing rollers is detected, a central position of reciprocal shift of one fixing roller which can be shifted is set such that the temperature gradient of the other fixing roller is cancelled, and then the one fixing roller is reciprocally shifted by the rocking section.

    摘要翻译： 提供了一种图像形成装置，定影装置和使用该成像装置的图像形成系统，包括：图像形成部分，用于将调色剂图像转印到记录片材上; 第一和第二定影辊，用于将调色剂图像热定影在记录纸上; 每个设置在所述定影辊的纵向方向上的多个位置处的第一和第二温度传感器; 以及摆动部分，用于在定影辊的纵向方向上使至少一个定影辊相互移位，其中检测每个定影辊的温度梯度，可以移动的一个定影辊的往复移位的中心位置 被设定为使得其他定影辊的温度梯度被消除，然后一个定影辊由摆动部分往复移动。

    IMAGE FORMING APPARATUS, FIXING DEVICE, AND IMAGE FORMING SYSTEM USING THE SAME
    8.
    发明申请
    IMAGE FORMING APPARATUS, FIXING DEVICE, AND IMAGE FORMING SYSTEM USING THE SAME 失效
    图像形成装置，固定装置和使用其的图像形成系统

    公开(公告)号：US20110142468A1

    公开(公告)日：2011-06-16

    申请号：US12962171

    申请日：2010-12-07

    申请人： Teruhiko Fujikura ,  Toru Kasamatsu ,  Tadayuki Eueda ,  Yoshihito Sasamoto ,  Satoshi Miyajima

    发明人： Teruhiko Fujikura ,  Toru Kasamatsu ,  Tadayuki Eueda ,  Yoshihito Sasamoto ,  Satoshi Miyajima

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G15/2042 ,  G03G2215/2006

    摘要： Provided are an image forming apparatus, a fixing device, and an image forming system using the same, including: an image forming section for transferring a toner image onto a recording sheet; a first and second fixing rollers for thermally fixing the toner image on the recording sheet; a first and second temperature sensors each provided at a plurality of positions in a longitudinal direction of the fixing roller; and a rocking section for reciprocally shifting at least one of the fixing rollers in the longitudinal direction of the fixing roller, wherein the temperature gradient of each of the fixing rollers is detected, a central position of reciprocal shift of one fixing roller which can be shifted is set such that the temperature gradient of the other fixing roller is cancelled, and then the one fixing roller is reciprocally shifted by the rocking section.

    摘要翻译： 提供了一种图像形成装置，定影装置和使用该成像装置的图像形成系统，包括：图像形成部分，用于将调色剂图像转印到记录片材上; 第一和第二定影辊，用于将调色剂图像热定影在记录纸上; 每个设置在所述定影辊的纵向方向上的多个位置处的第一和第二温度传感器; 以及摆动部分，用于在定影辊的纵向方向上使至少一个定影辊相互移位，其中检测每个定影辊的温度梯度，一个定影辊的可移动的往复移位的中心位置 被设定为使得其他定影辊的温度梯度被消除，然后一个定影辊由摆动部分往复移动。

    Imaging apparatus and imaging method therefore
    10.
    发明申请
    Imaging apparatus and imaging method therefore 有权
    因此，成像设备和成像方法

    公开(公告)号：US20050271429A1

    公开(公告)日：2005-12-08

    申请号：US10974939

    申请日：2004-10-28

    申请人： Yuta Tachibana ,  Teruhiko Fujikura ,  Kou Yamada

    发明人： Yuta Tachibana ,  Teruhiko Fujikura ,  Kou Yamada

    IPC分类号： G03G21/14 ,  G03G15/01 ,  G03G15/16

    CPC分类号： G03G15/0131 ,  G03G15/1615 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0119 ,  G03G2215/0161

    摘要： A controller of a color copier according to the invention includes a drive controller section, a pattern generation section, and a velocity information acquisition section. The drive controller section changes the phase relationship in rotation angle between a drive roller driving the transfer belt and individual photosensitive drums of a plurality of imaging sections. The pattern generation section forms registered marks on the transfer belt by using the plurality of imaging sections before and after the drive controller section changes the phase relationship. The velocity information acquisition section acquires at least one of a velocity fluctuation component of individual photosensitive drums and a velocity fluctuation component of the transfer belt in accordance with the result of sensing by a mark sensor for two registered marks formed by the pattern generation section.

    摘要翻译： 根据本发明的彩色复印机的控制器包括驱动控制器部分，图案生成部分和速度信息获取部分。 驱动控制器部分改变驱动转印带的驱动辊和多个成像部分的各个感光鼓之间的旋转角度的相位关系。 图案生成部在驱动控制部改变相位关系之前和之后，通过使用多个成像部，在转印带上形成登记标记。 速度信息获取部根据由图案生成部形成的两个登记标记的标记传感器的感测结果，获取各个感光鼓的速度波动分量和转印带的速度变动分量中的至少一个。