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1. 发明授权

US10054888B2 Device for detecting travel distance, image forming apparatus, and method for detecting travel distance 有权
公开(公告)号：US10054888B2
公开(公告)日：2018-08-21
申请号：US15414792
申请日：2017-01-25
申请人： KONICA MINOLTA, INC.
发明人： Yuji Kobayashi , Takaki Kato , Masayuki Fukunaga
IPC分类号： G03G15/00
CPC分类号： G03G15/5062 , G03G15/657 , G03G2215/00616 , G03G2215/00645 , G03G2215/0135
摘要： A device for detecting a travel distance of a sheet is provided. The device includes a light source for irradiating the sheet surface; an imaging sensor for capturing an image of a pattern of the sheet surface by light reflected from the sheet; a discrete Fourier transformation portion for performing discrete Fourier transformation on two patterns obtained by image capturing at a time interval by the imaging sensor; a high wave number component removal portion for using a threshold determined based on a cycle of concave-convex of the sheet surface to remove a high wave number component from the two patterns having been subjected to the discrete Fourier transformation; and a travel distance calculation portion for determining a travel distance of the sheet based on a phase relationship between the two patterns from which the high wave number component removal portion has removed the high wave number component.

2. 发明授权

US09625860B2 Image forming apparatus 有权
公开(公告)号：US09625860B2
公开(公告)日：2017-04-18
申请号：US14661893
申请日：2015-03-18
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA TEC KABUSHIKI KAISHA
发明人： Eizo Kurita
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/65 , G03G15/2028 , G03G15/5062 , G03G15/6529 , G03G15/657 , G03G2215/00645 , G03G2215/00945 , G03G2215/0132
摘要： An image forming apparatus comprises a first roller, a second roller and a control section. The first roller is arranged on a conveyance path of a sheet. The second roller is arranged downstream side of the first roller in the conveyance path. The control section calculates a deflection amount of the sheet nipped by the first roller and the second roller based on a conveyance speed of the sheet conveyed along the conveyance path, and controls a rotation speed of at least one of the first roller and the second roller based on the calculated deflection amount.

3. 发明申请

US20160349688A1 IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20160349688A1
公开(公告)日：2016-12-01
申请号：US15232459
申请日：2016-08-09
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA TEC KABUSHIKI KAISHA
发明人： Eizo KURITA
IPC分类号： G03G15/00
CPC分类号： G03G15/65 , G03G15/2028 , G03G15/5062 , G03G15/6529 , G03G15/657 , G03G2215/00645 , G03G2215/00945 , G03G2215/0132
摘要： An image forming apparatus comprises a first roller, a second roller and a control section. The first roller is arranged on a conveyance path of a sheet. The second roller is arranged downstream side of the first roller in the conveyance path. The control section calculates a deflection amount of the sheet nipped by the first roller and the second roller based on a conveyance speed of the sheet conveyed along the conveyance path, and controls a rotation speed of at least one of the first roller and the second roller based on the calculated deflection amount.

4. 发明授权

US08376640B2 Printing media feeding apparatus, printing apparatus provided with the feeding apparatus, printing media feeding speed control method and computer program 失效
标题翻译：印刷介质进给装置，设有进给装置的打印装置，打印介质进给速度控制方法和计算机程序
公开(公告)号：US08376640B2
公开(公告)日：2013-02-19
申请号：US11203395
申请日：2005-08-12
申请人： Kaoru Ogawa
发明人： Kaoru Ogawa
IPC分类号： B41J11/00 , B41J11/42 , B41J2/32
CPC分类号： G03G15/6529 , B41J11/42 , B41J13/103 , G03G2215/00645 , G03G2215/00746
摘要： The present invention prevents density irregularity from appearing in a print result and to thereby improve image quality by controlling a motor so that the rotational speed of a drive shaft that feeds printing media is constant. The present invention provides a printing media feeding apparatus including a feeding section that includes a motor, a drive transmission mechanism which transmits a driving force of the motor, and a drive shaft to which the driving force is transmitted by the drive transmission mechanism. The drive shaft is rotated to feed the printing medium. A detection section is provided having at least a portion secured to the drive shaft and the detection section determines the rotational speed of the drive shaft and a controller controls the motor based on an input from the detection section so that the rotational speed the of the drive shaft is constant.
摘要翻译：本发明防止了在打印结果中出现浓度不均匀性，从而通过控制马达使得馈送打印介质的驱动轴的旋转速度恒定而提高图像质量。本发明提供了一种打印介质进给装置，包括：馈送部分，其包括马达，传递马达的驱动力的驱动传递机构和由驱动传动机构传递驱动力的驱动轴。驱动轴旋转以供给打印介质。检测部具有至少一部分固定在驱动轴上，检测部确定驱动轴的转速，控制器根据来自检测部的输入来控制马达，使得驱动部的转速轴是恒定的。

5. 发明申请

US20060182477A1 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US20060182477A1
公开(公告)日：2006-08-17
申请号：US11354858
申请日：2006-02-16
申请人： Toshiki Takiguchi , Tatsuya Inoue , Kouji Wakamoto , Tsutomu Yoshimoto , Syoichiro Yoshiura
发明人： Toshiki Takiguchi , Tatsuya Inoue , Kouji Wakamoto , Tsutomu Yoshimoto , Syoichiro Yoshiura
IPC分类号： G03G15/00
CPC分类号： G03G15/6564 , G03G2215/00409 , G03G2215/00599 , G03G2215/00645 , G03G2215/1614
摘要： An image forming apparatus of the present invention carries out an image processing with respect to a sheet size based on a print request and image information based on the print request, so as to obtain a write image on a photoreceptor. On the basis of a printing ratio of the write image obtained by the image processing, the image forming apparatus predicts the occurrence of an image elongation. If the image forming apparatus predicts that the image elongation occurs, the image forming apparatus calculates a bending amount of a bended portion on the basis of the difference between the peripheral velocity of a photoreceptor and the peripheral velocity of the idle roller, and the image forming apparatus variably controls the peripheral velocity of an idle roller so that the bending amount calculated is adjusted so as not to cause a slip phenomenon. With this, it is possible to avoid the occurrence of a phenomenon of slipping of a sheet with respect to the photoreceptor without lowering the image quality, and also possible to surely secure a blank space formed at a rear edge portion of the sheet.
摘要翻译：本发明的图像形成装置基于打印请求和基于打印请求的图像信息执行关于纸张尺寸的图像处理，以便在感光体上获得写入图像。基于通过图像处理获得的写入图像的打印率，图像形成装置预测图像延伸的发生。如果图像形成装置预测图像伸长发生，则图像形成装置基于感光体的圆周速度与空转辊的圆周速度之间的差来计算弯曲部分的弯曲量，并且图像形成设备可变地控制空转辊的圆周速度，以便调节所计算的弯曲量，以便不产生滑动现象。由此，可以避免在不降低图像质量的情况下发生片材相对于感光体的滑动现象，并且还可以确保形成在片材的后边缘部分处的坯料空间。

6. 发明授权

US08376499B2 Adjusting measurements 有权
标题翻译：调整测量
公开(公告)号：US08376499B2
公开(公告)日：2013-02-19
申请号：US12322183
申请日：2009-01-30
申请人： Carles Flotats , Marcos Casaldaliga , Jordi Ferran Cases , Raimon Castells De Monet , David Toussaint , Jonas Ingemar Åström
发明人： Carles Flotats , Marcos Casaldaliga , Jordi Ferran Cases , Raimon Castells De Monet , David Toussaint , Jonas Ingemar Åström
IPC分类号： B41J29/393 , G06F3/12
CPC分类号： G03G15/6529 , G03G2215/00371 , G03G2215/00599 , G03G2215/00616 , G03G2215/00645 , G03G2215/00721 , G03G2215/00746
摘要： A system for adjusting measurements is disclosed. In one embodiment, the system includes an optical sensor having a window marked with two fiducials and at least one processor coupled to the optical sensor.
摘要翻译：公开了一种用于调节测量的系统。在一个实施例中，该系统包括具有标记有两个基准的窗口和耦合到该光学传感器的至少一个处理器的光学传感器。

7. 发明授权

US08126387B2 Sheet conveying device and image forming apparatus 有权
标题翻译：片材输送装置和成像装置
公开(公告)号：US08126387B2
公开(公告)日：2012-02-28
申请号：US12128337
申请日：2008-05-28
申请人： Hidetaka Noguchi , Toshiyuki Andoh , Takashi Hodoshima , Tatsuhiko Oikawa , Seiji Hoshino , Hiromichi Matsuda , Makoto Komatsu , Takashi Hashimoto
发明人： Hidetaka Noguchi , Toshiyuki Andoh , Takashi Hodoshima , Tatsuhiko Oikawa , Seiji Hoshino , Hiromichi Matsuda , Makoto Komatsu , Takashi Hashimoto
IPC分类号： G03G15/00 , G03G15/01
CPC分类号： G03G15/657 , G03G15/6564 , G03G2215/00409 , G03G2215/00413 , G03G2215/00645 , G03G2215/0154
摘要： A fluctuation detecting unit detects a fluctuation of an endless belt generated when a sheet is brought into contact with a predetermined position of the endless belt at an upstream side in a conveying direction from a nip portion based on fluctuation information acquired by a fluctuation information acquiring unit. An entry timing estimating unit estimates entry timing of the sheet into the nip portion based on a detection of the fluctuation. A correction control unit corrects a speed fluctuation of the endless belt generated when the sheet enters the nip portion by performing a feedforward control of a first driving unit based on the entry timing.
摘要翻译：波动检测单元根据由波动信息获取单元获取的波动信息，检测当纸张从压区部分沿输送方向的上游侧与环形带的预定位置接触时产生的环形带的波动。入口定时估计单元基于波动的检测来估计片材进入夹持部分的进入时机。校正控制单元通过基于入口定时执行第一驱动单元的前馈控制来校正当片材进入夹持部分时产生的环形带的速度波动。

8. 发明申请

US20100195121A1 Adjusting measurements 有权
标题翻译：调整测量
公开(公告)号：US20100195121A1
公开(公告)日：2010-08-05
申请号：US12322183
申请日：2009-01-30
申请人： Carles Flotats , Marcos Casaldaliga , Jordi Ferran Cases , Raimon Castells De Monet , David Toussaint , Jonas Ingemar Astrom
发明人： Carles Flotats , Marcos Casaldaliga , Jordi Ferran Cases , Raimon Castells De Monet , David Toussaint , Jonas Ingemar Astrom
IPC分类号： G06K15/02 , G06K9/00
CPC分类号： G03G15/6529 , G03G2215/00371 , G03G2215/00599 , G03G2215/00616 , G03G2215/00645 , G03G2215/00721 , G03G2215/00746
摘要： A system for adjusting measurements is disclosed. In one embodiment, the system includes an optical sensor having a window marked with two fiducials and at least one processor coupled to the optical sensor.
摘要翻译：公开了一种用于调节测量的系统。在一个实施例中，该系统包括具有标记有两个基准的窗口和耦合到该光学传感器的至少一个处理器的光学传感器。

9. 发明授权

US07460820B2 Drive control device and image forming apparatus 失效
标题翻译：驱动控制装置和图像形成装置
公开(公告)号：US07460820B2
公开(公告)日：2008-12-02
申请号：US11476837
申请日：2006-06-29
申请人： Shouji Okabe
发明人： Shouji Okabe
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/0131 , G03G2215/00645 , G03G2215/0158
摘要： A drive control device controls a rotation speed of a rotatable member. A rotation drive member drives the rotatable member. A plurality of objects to be detected are provided in the rotatable member. A detector detects the objects to be detected, which are rotating with rotation of the rotatable member, and outputs a detection signal. A control part detects an angular speed of the rotatable member in accordance with the detection signal, and controls a rotation speed of the rotation drive member. The control part calculates an amount of error in intervals of the objects to be detected, and controls the rotation speed of the rotation drive member in accordance with the amount of error.
摘要翻译：驱动控制装置控制可旋转部件的旋转速度。旋转驱动构件驱动可旋转构件。在可旋转构件中设置有待检测的多个物体。检测器检测到正被旋转的构件旋转的被检测物体，并输出检测信号。控制部根据检测信号检测可旋转部件的角速度，并控制旋转驱动部件的转速。控制部分计算待检测物体的间隔的误差量，并且根据误差量来控制旋转驱动部件的旋转速度。

10. 发明授权

US07454150B2 Image forming apparatus having a resist rotary member 失效
标题翻译：具有抗蚀剂旋转部件的图像形成装置
公开(公告)号：US07454150B2
公开(公告)日：2008-11-18
申请号：US11327520
申请日：2006-01-09
申请人： Hiromichi Matsuda , Toshiyuki Andoh , Masato Yokoyama , Kazuhiko Kobayashi , Yuji Matsuda , Yohei Miura , Hiroshi Okamura , Nobuto Yokokawa , Ryoji Imai
发明人： Hiromichi Matsuda , Toshiyuki Andoh , Masato Yokoyama , Kazuhiko Kobayashi , Yuji Matsuda , Yohei Miura , Hiroshi Okamura , Nobuto Yokokawa , Ryoji Imai
IPC分类号： G03G15/00 , G03G15/16 , G03G15/20
CPC分类号： G03G15/0131 , G03G15/167 , G03G15/6564 , G03G2215/00409 , G03G2215/00599 , G03G2215/00645 , G03G2215/00746 , G03G2215/0119 , G03G2215/0158
摘要： An image forming apparatus includes a belt stretched across rollers and a resist rotary member that feeds out a recording medium on the belt. A correlation between a velocity of the belt and the resist rotary member is obtained. A target velocity of the belt or the resist rotary member, at which a difference between the velocity when the recording medium is in contact with both the belt and the resist rotary member and the velocity when the recording medium is not in contact with at least either the belt or the resist rotary member is minimum, is determined based on the correlation.
摘要翻译：图像形成装置包括横跨辊子的拉伸带和在带上馈送记录介质的抗蚀剂旋转构件。获得带和抗蚀剂旋转构件的速度之间的相关性。带或抗蚀剂旋转构件的目标速度，其中当记录介质与带和抗蚀剂旋转构件接触时的速度之间的差异以及记录介质不与至少任一个接触的速度带或抗蚀剂旋转构件是最小的，基于相关性来确定。

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