公开(公告)号：US10684583B2

公开(公告)日：2020-06-16

申请号：US16278227

申请日：2019-02-18

申请人： Shogo Nakamoto ,  Kazuhiro Kobayashi ,  Keiichi Yoshida ,  Takuya Murata

发明人： Shogo Nakamoto ,  Kazuhiro Kobayashi ,  Keiichi Yoshida ,  Takuya Murata

IPC分类号： G03G15/00

摘要： An abnormality detection device is configured to detect abnormality in a subject to be driven by a motor via a drive transmission member. The abnormality detection device includes an output signal acquisition unit, a rotational frequency acquisition unit, and a determining unit. The output signal acquisition unit is configured to acquire a rotational frequency output signal output from the motor. The rotational frequency acquisition unit is configured to acquire a motor rotational frequency calculated from the rotational frequency output signal acquired by the output signal acquisition unit. The determining unit is configured to distinctively determine abnormality in the subject to be driven and abnormality in the motor based on the rotational frequency output signal acquired by the output signal acquisition unit and the motor rotational frequency acquired by the rotational frequency acquisition unit.

公开(公告)号：US09263978B2

公开(公告)日：2016-02-16

申请号：US14321237

申请日：2014-07-01

申请人： Takuya Murata ,  Shogo Sakamoto ,  Kenji Tomita

发明人： Takuya Murata ,  Shogo Sakamoto ,  Kenji Tomita

IPC分类号： H02K29/10 ,  H02P6/16 ,  H02K11/00 ,  H02K5/22 ,  H02K7/116

CPC分类号： H02P6/16 ,  H02K5/225 ,  H02K7/116 ,  H02K11/0094 ,  H02K11/22

摘要： A drive unit, which can be included in an image forming apparatus with peripherals disposed thereto and use a control method therefore, includes an inner rotor brushless DC motor, a driver, a rotation detector, and a controller. The driver supplies power to drive the brushless DC motor. The rotation detector detects an amount and direction of rotations of an output shaft. The controller controls the rotations of the brushless DC motor and obtains a target drive signal of the brushless DC motor externally and a detection signal from the rotation detector and outputs a signal to the driver. The controller controls a speed of rotation of the brushless DC motor by varying the signal output to the driver based on the target drive signal and the detection signal.

摘要翻译： 可以包括在具有设置在其上的外围设备的图像形成装置中并且因此使用控制方法的驱动单元包括内转子无刷直流电动机，驱动器，旋转检测器和控制器。 驱动器驱动无刷直流电机供电。 旋转检测器检测输出轴的旋转量和方向。 控制器控制无刷直流电动机的旋转，并从外部获得无刷直流电动机的目标驱动信号和来自旋转检测器的检测信号，并向驾驶员输出信号。 控制器通过基于目标驱动信号和检测信号改变输出到驾驶员的信号来控制无刷直流电动机的旋转速度。

公开(公告)号：US20090263158A1

公开(公告)日：2009-10-22

申请号：US12385429

申请日：2009-04-08

申请人： Takuya Murata ,  Kazuhiko Kobayashi ,  Yuji Matsuda ,  Yuichiro Ueda ,  Hiromichi Matsuda ,  Toshiyuki Andoh ,  Joh Ebara ,  Yohei Miura ,  Takuya Uehara

发明人： Takuya Murata ,  Kazuhiko Kobayashi ,  Yuji Matsuda ,  Yuichiro Ueda ,  Hiromichi Matsuda ,  Toshiyuki Andoh ,  Joh Ebara ,  Yohei Miura ,  Takuya Uehara

IPC分类号： G03G15/00

CPC分类号： G03G15/161 ,  G03G15/1615 ,  G03G2215/0132 ,  G03G2215/0193 ,  G03G2215/1623 ,  G03G2215/1661

摘要： In an image forming apparatus, during a rotation of an intermediate transfer belt performed after a contact-state-changing rotation in which the number of photoconductors contacting the intermediate transfer belt has changed, a control unit of a belt driving device controls the driving speed of a belt driving motor based on a period of the intermediate transfer belt determined in the rotation immediately before the contact-state-changing rotation instead of a period determined in the contact-state-changing rotation.

摘要翻译： 在图像形成装置中，在接触状态转换旋转中进行的中间转印带的旋转期间，其中接触中间转印带的感光体的数量已经改变，带驱动装置的控制单元控制驱动速度 皮带驱动马达基于在接触状态改变旋转之前的旋转中确定的中间转印带的周期，而不是在接触状态改变旋转中确定的周期。

公开(公告)号：US20090238613A1

公开(公告)日：2009-09-24

申请号：US12406435

申请日：2009-03-18

申请人： Yuichiro UEDA ,  Kazuhiko Kobayashi ,  Takuya Uehara ,  Takuya Murata ,  Yuji Matsuda ,  Takahiro Kamekura ,  Toshiyuki Andoh ,  Hiromichi Matsuda ,  Hiroki Ohkubo

发明人： Yuichiro UEDA ,  Kazuhiko Kobayashi ,  Takuya Uehara ,  Takuya Murata ,  Yuji Matsuda ,  Takahiro Kamekura ,  Toshiyuki Andoh ,  Hiromichi Matsuda ,  Hiroki Ohkubo

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/0131 ,  G03G15/1615 ,  G03G2215/0129 ,  G03G2215/0158

摘要： A belt drive control device includes: first and second detection devices which detect the angular displacement or velocity of a driven rotary member and the angular displacement or velocity of a drive rotary member, respectively; an extraction device which extracts, from the difference between the detection results of the first and second detection devices, the amplitude and phase of a variation component due to belt thickness variation; a control device which controls the rotation of the drive rotary member in accordance with the extracted amplitude and phase; first and second holding devices which hold the extracted amplitude and phase and normal ranges of the amplitude and phase, respectively; and first and second feedback devices which feed back the amplitude and phase to the rotation control, and performs feedback by using a substitution value for the amplitude or phase if the amplitude or phase is out of the normal range, respectively.

摘要翻译： 带驱动控制装置包括：分别检测从动旋转构件的角位移或速度的第一和第二检测装置以及驱动旋转构件的角位移或速度; 提取装置，从第一和第二检测装置的检测结果的差异中提取由于带厚度变化引起的变化成分的振幅和相位; 控制装置，其根据提取的振幅和相位来控制驱动旋转构件的旋转; 第一和第二保持装置，其分别保持提取的振幅和相位以及幅度和相位的正常范围; 以及将振幅和相位反馈到旋转控制的第一和第二反馈装置，并且如果幅度或相位分别在正常范围之外，则通过使用振幅或相位的替换值来执行反馈。

公开(公告)号：US20090190972A1

公开(公告)日：2009-07-30

申请号：US12361969

申请日：2009-01-29

申请人： Hiroki Ohkubo ,  Hiromichi Matsuda ,  Toshiyuki Andoh ,  Yuji Matsuda ,  Yuichiro Ueda ,  Kazuhiko Kobayashi ,  Takuya Uehara ,  Takuya Murata

发明人： Hiroki Ohkubo ,  Hiromichi Matsuda ,  Toshiyuki Andoh ,  Yuji Matsuda ,  Yuichiro Ueda ,  Kazuhiko Kobayashi ,  Takuya Uehara ,  Takuya Murata

IPC分类号： G03G15/01

CPC分类号： G03G15/0131 ,  G03G2215/00139 ,  G03G2215/0158

摘要： A belt drive control unit controls a rotation of belt supported by first and second rollers. Each of rotations of the first and second rollers are detected as first and second results. A rotation of the first roller is controlled in connection with thickness fluctuation in the belt using the first and second results. The belt drive control unit includes a sampling data acquisition unit, a correction value generator, a correction value storage, and a correction value reading controller. The sampling data acquisition unit obtains sampling data by sampling a difference value between the first and second results. The correction value generator generates correction value data for the belt based on the sampling data. The correction value storage stores the correction value data. The correction value reading controller reads the correction value data based on a rotation number of the belt to control a rotation of the first roller.

摘要翻译： 带驱动控制单元控制由第一和第二辊支撑的带的旋转。 作为第一和第二结果检测第一和第二辊的每个转动。 使用第一和第二结果来控制第一辊的旋转与带中的厚度波动有关。 带驱动控制单元包括采样数据获取单元，校正值发生器，校正值存储器和校正值读取控制器。 采样数据采集单元通过采样第一和第二结果之间的差值来获取采样数据。 校正值发生器基于采样数据生成带的校正值数据。 校正值存储器存储校正值数据。 校正值读取控制器基于皮带的旋转数读出校正值数据，以控制第一辊的旋转。

公开(公告)号：US20090017953A1

公开(公告)日：2009-01-15

申请号：US12216946

申请日：2008-07-14

申请人： Takuya Uehara ,  Joh Ebara ,  Yohei Miura ,  Takuya Murata

发明人： Takuya Uehara ,  Joh Ebara ,  Yohei Miura ,  Takuya Murata

IPC分类号： F16H48/06 ,  G03G15/00

CPC分类号： G03G15/757 ,  F16H1/46 ,  G03G15/1615 ,  G03G2215/0193

摘要： A rotary drive device includes a motor including a rotary shaft, a planetary gear mechanism, and a rotation position detector. The planetary gear mechanism decelerates a rotation output of the motor at a reference reduction ratio and includes an outer gear, multistage gears, and an output shaft. The outer gear is fixed to a housing of the motor. The multistage gears are provided inside the outer gear. The output shaft transmits the decelerated rotation output of the motor to an outside of the rotary drive device. The rotation position detector detects a rotation position of the output shaft to control rotation of the motor. The motor, the planetary gear mechanism, and the rotation position detector are combined into a single integrated unit and aligned in an axial direction of the rotary shaft of the motor.

摘要翻译： 旋转驱动装置包括电动机，其包括旋转轴，行星齿轮机构和旋转位置检测器。 行星齿轮机构以参考减速比减速马达的旋转输出，并且包括外齿轮，多级齿轮和输出轴。 外齿轮固定在马达的壳体上。 多档齿轮设置在外齿轮内。 输出轴将马达的减速旋转输出传递到旋转驱动装置的外部。 旋转位置检测器检测输出轴的旋转位置，以控制电机的旋转。 电动机，行星齿轮机构和旋转位置检测器组合成单个集成单元并沿电动机的旋转轴的轴向对准。

公开(公告)号：US20060118629A1

公开(公告)日：2006-06-08

申请号：US11296517

申请日：2005-12-06

申请人： Gaku Shiramizu ,  Takuya Murata ,  Katsuki Nakajima

发明人： Gaku Shiramizu ,  Takuya Murata ,  Katsuki Nakajima

IPC分类号： G06K7/10

CPC分类号： G06K7/10732 ,  G06K7/10722 ,  G06K7/1478

摘要： An optical data code reader includes an illuminator device for illuminating an optical data code to be read out, an image-taking device for taking an image of this optical data code, a readout device for decoding the optical data code by processing image data generated by the image-taking device and an adjustment device for carrying out an adjustment process. The adjustment device adjusts an illumination condition of the illuminator device and/or an image-taking condition for the image-taking device such that the image data become suitable for being read out. The adjustment device serves to set areas on image data outputted by the image-taking device, to extract a variation amplitude of brightness in each of the areas and to carry out the adjustment process by using the image data of at least one of the areas in which the extracted variation amplitude is greater than a specified threshold value.

公开(公告)号：US11102373B2

公开(公告)日：2021-08-24

申请号：US16547701

申请日：2019-08-22

申请人： Yuji Tanaka ,  Takuya Murata ,  Ko Tokumaru

发明人： Yuji Tanaka ,  Takuya Murata ,  Ko Tokumaru

IPC分类号： B41J3/36 ,  H04N1/00 ,  H04N1/327

摘要： An image forming apparatus includes an image forming device and circuitry. The image forming device is configured to form an image on a medium. The circuitry is configured to detect a position of the image forming device relative to the medium. The circuitry is further configured to control the image forming device based on the position of the image forming device detected and image data. The circuitry is further configured to control a system state of the image forming device based on the position of the image forming device associated with movement of the image forming device relative to the medium.

公开(公告)号：US11006016B2

公开(公告)日：2021-05-11

申请号：US16810860

申请日：2020-03-06

申请人： Ko Tokumaru ,  Jun Shiori ,  Takuya Murata ,  Yuji Tanaka ,  Takahisa Koike

发明人： Ko Tokumaru ,  Jun Shiori ,  Takuya Murata ,  Yuji Tanaka ,  Takahisa Koike

IPC分类号： H04N1/04 ,  B41J3/36 ,  H04N1/191

摘要： An image forming apparatus is configured to form an image on a recording medium by scanning of the image forming apparatus by a user. The image forming apparatus includes an image forming device and processing circuitry. The image forming device includes a plurality of image forming arrays. Each of the image forming arrays includes an image forming portion configured to form the image. The processing circuitry is configured to set an image forming array to be used to form the image, according to a use mode of the image forming apparatus.

公开(公告)号：US10053317B2

公开(公告)日：2018-08-21

申请号：US15662538

申请日：2017-07-28

申请人： Shogo Nakamoto ,  Takeo Seki ,  Takuya Murata ,  Shogo Sakamoto

发明人： Shogo Nakamoto ,  Takeo Seki ,  Takuya Murata ,  Shogo Sakamoto

IPC分类号： B65H5/02 ,  B65H5/04 ,  G03G15/00 ,  G05B11/18 ,  G05B11/42 ,  H02P6/16 ,  H02K7/116

CPC分类号： B65H5/025 ,  B65H2403/25 ,  B65H2403/512 ,  B65H2403/514 ,  B65H2404/1452 ,  B65H2404/255 ,  B65H2404/262 ,  B65H2513/222 ,  G03G15/1615 ,  G03G15/754 ,  G03G15/757 ,  G05B11/18 ,  G05B11/42 ,  G05B2219/41021 ,  G05B2219/41321 ,  H02K7/116 ,  H02K7/14 ,  H02K11/22 ,  H02P3/025 ,  H02P6/16 ,  H02P6/17 ,  H02P8/30

摘要： A contact-and-separation system includes a first roller, a second roller, and a contact-and-separation device. The first roller contacts a belt. The second roller is opposed to the first roller. The contact-and-separation device contacts or separates the belt to or from the second roller via a sheet conveyed. The contact-and-separation device includes an eccentric cam, a motor, and a circuitry. The eccentric cam is mounted on an end of a rotation shaft of the first roller. The motor rotates the eccentric cam. The circuitry controls the motor to rotate the eccentric cam to contact or separate the belt to or from the second roller via the sheet conveyed. The circuitry controls the motor to decelerate a rotation speed of the motor on contact or separation of the belt to or from the second roller between the first roller and the second roller.