公开(公告)号：US20110150531A1

公开(公告)日：2011-06-23

申请号：US13039012

申请日：2011-03-02

申请人： Kazuhiko KOBAYASHI ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Kazuhiko KOBAYASHI ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G2215/00075 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus includes a plurality of image bearing members, each of which is configured to bear a portion of a pattern image including a plurality of reference images in a given form, an endless moving member facing the plurality of image bearing members and configured to receive the pattern image, an image detecting unit configured to detect the plurality of reference images, a rotational angle detecting unit configured to separately detect each image bearing member at a given rotational angle, and a controller configured to detect a speed deviation pattern for each revolution of each image bearing member. The controller is configured to detect the speed deviation pattern based on a result obtained from a phase component and a quadrature component of a frequency signal generated from the detection result obtained by the rotational angle detecting unit and a result of detecting the plurality of reference images in the pattern image transferred onto the endless moving member.

摘要翻译： 图像形成装置包括多个图像承载部件，每个图像承载部件被构造为承载包括给定形式的多个参考图像的图案图像的一部分，面向多个图像承载部件的环形移动部件， 接收图案图像，图像检测单元，被配置为检测多个参考图像;旋转角度检测单元，被配置为以给定的旋转角度独立地检测每个图像承载构件;以及控制器，被配置为检测每个旋转的速度偏差模式 的每个图像承载构件。 控制器被配置为基于从由旋转角度检测单元获得的检测结果产生的频率信号的相位分量和正交分量获得的结果以及检测多个参考图像的结果来检测速度偏差模式 图案图像转印到无端移动部件上。

公开(公告)号：US07653332B2

公开(公告)日：2010-01-26

申请号：US11790825

申请日：2007-04-27

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Noriaki Funamoto ,  Seiichi Handa ,  Yuji Matsuda ,  Kouji Amanai ,  Toshiyuki Uchida ,  Keisuke Sugiyama

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Noriaki Funamoto ,  Seiichi Handa ,  Yuji Matsuda ,  Kouji Amanai ,  Toshiyuki Uchida ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/5033 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/00075 ,  G03G2215/0132 ,  G03G2215/0158

摘要： An image forming apparatus includes: image detectors to detect conditions of images, respectively, formed on a transfer member; sensors to detect rotational displacements of latent image carriers, respectively; and a controller to perform at least phase adjustment control and image-to-image displacement control before performing image forming operations on image carriers, respectively. Image-to-image displacement control includes adjusting image forming timing on the image carriers based upon conditions of a detection image (including images transferred from the image carrier) detected by the image detectors, respectively. Speed-variation detection control includes detecting a condition of a speed-variation detection image (including an image transferred from each of image carriers) via the image detectors, and determining speed variation of the image carriers, respectively, per one revolution based upon outputs of the image detectors and the sensors. Phase adjustment control includes determining phase adjustments for the image carriers, respectively, based on the corresponding speed-variations.

摘要翻译： 图像形成装置包括：图像检测器，分别检测形成在转印部件上的图像的状态; 传感器分别检测潜像载体的旋转位移; 以及分别在对图像载体执行图像形成操作之前执行至少相位调整控制和图像到图像位移控制的控制器。 图像到图像位移控制包括分别基于由图像检测器检测到的检测图像（包括从图像载体传送的图像）的条件来调整图像载体上的图像形成定时。 速度变化检测控制包括：经由图像检测器检测速度变化检测图像（包括从每个图像载体传送的图像）的状况，并且基于每一行的输出分别确定图像载体的速度变化 图像检测器和传感器。 相位调整控制包括基于相应的速度变化分别确定图像载体的相位调整。

公开(公告)号：US20070196132A1

公开(公告)日：2007-08-23

申请号：US11677013

申请日：2007-02-20

申请人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G2215/00075 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus includes a plurality of image bearing members, each of which is configured to bear a portion of a pattern image including a plurality of reference images in a given form, an endless moving member facing the plurality of image bearing members and configured to receive the pattern image, an image detecting unit configured to detect the plurality of reference images, a rotational angle detecting unit configured to separately detect each image bearing member at a given rotational angle, and a controller configured to detect a speed deviation pattern for each revolution of each image bearing member. The controller is configured to detect the speed deviation pattern based on a result obtained from a phase component and a quadrature component of a frequency signal generated from the detection result obtained by the rotational angle detecting unit and a result of detecting the plurality of reference images in the pattern image transferred onto the endless moving member.

摘要翻译： 图像形成装置包括多个图像承载部件，每个图像承载部件被构造为承载包括给定形式的多个参考图像的图案图像的一部分，面向多个图像承载部件的环形移动部件， 接收图案图像，图像检测单元，被配置为检测多个参考图像;旋转角度检测单元，被配置为以给定的旋转角度独立地检测每个图像承载构件;以及控制器，被配置为检测每个旋转的速度偏差模式 的每个图像承载构件。 控制器被配置为基于从由旋转角度检测单元获得的检测结果产生的频率信号的相位分量和正交分量获得的结果以及检测多个参考图像的结果来检测速度偏差模式 图案图像转印到无端移动部件上。

公开(公告)号：US20070097465A1

公开(公告)日：2007-05-03

申请号：US11542123

申请日：2006-10-04

申请人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Noriaki Funamoto ,  Toshiyuki Uchida ,  Seiichi Handa ,  Yuji Matsuda

发明人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Noriaki Funamoto ,  Toshiyuki Uchida ,  Seiichi Handa ,  Yuji Matsuda

IPC分类号： G03F3/08

CPC分类号： H04N1/6033 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0148 ,  G03G2215/0161 ,  H04N1/506

摘要： A color-drift correcting method in an image forming apparatus includes a first and a second color-drift correcting. The first color-drift correcting includes correcting the color-drift amount in a sub scanning direction and a skew relative to the reference color image being based on each color-drift amount of at least three mark-patterns, each of which mark-pattern is formed each color image, so as to decide a corrected-image line as a virtual image line for each color, assumed when the color images are superposed onto a transfer media. A second color-drift correcting includes correcting the color-drift amount in the sub scanning direction so that the virtual image lines corresponding to each of the colors other than the reference color intersect with the virtual image line of the reference color at at least two points.

摘要翻译： 图像形成装置中的颜色漂移校正方法包括第一和第二颜色漂移校正。 第一颜色漂移校正包括基于至少三个标记图案的每个颜色漂移量校正副扫描方向上的色漂量和相对于参考彩色图像的偏斜，每个标记图案是 形成每个彩色图像，以便当彩色图像叠加到转印介质上时，将每个颜色的校正图像线确定为虚拟图像线。 第二颜色漂移校正包括校正副扫描方向上的色彩漂移量，使得与参考色以外的每种颜色相对应的虚拟图像线至少在两点处与参考色的虚拟图像线相交 。

公开(公告)号：US07729024B2

公开(公告)日：2010-06-01

申请号：US11542123

申请日：2006-10-04

申请人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Noriaki Funamoto ,  Toshiyuki Uchida ,  Seiichi Handa ,  Yuji Matsuda

发明人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Noriaki Funamoto ,  Toshiyuki Uchida ,  Seiichi Handa ,  Yuji Matsuda

IPC分类号： H04N1/58 ,  H04N1/60

CPC分类号： H04N1/6033 ,  G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0148 ,  G03G2215/0161 ,  H04N1/506

摘要： A color-drift correcting method in an image forming apparatus includes a first and a second color-drift correcting. The first color-drift correcting includes correcting the color-drift amount in a sub scanning direction and a skew relative to the reference color image being based on each color-drift amount of at least three mark-patterns, each of which mark-pattern is formed each color image, so as to decide a corrected-image line as a virtual image line for each color, assumed when the color images are superposed onto a transfer media. A second color-drift correcting includes correcting the color-drift amount in the sub scanning direction so that the virtual image lines corresponding to each of the colors other than the reference color intersect with the virtual image line of the reference color at at least two points.

摘要翻译： 图像形成装置中的颜色漂移校正方法包括第一和第二颜色漂移校正。 第一颜色漂移校正包括基于至少三个标记图案的每个颜色漂移量校正副扫描方向上的色漂量和相对于参考彩色图像的偏斜，每个标记图案是 形成每个彩色图像，以便当彩色图像叠加到转印介质上时，将每个颜色的校正图像线确定为虚拟图像线。 第二颜色漂移校正包括校正副扫描方向上的色彩漂移量，使得与参考色以外的每种颜色相对应的虚拟图像线至少在两点处与参考色的虚拟图像线相交 。

公开(公告)号：US20070253736A1

公开(公告)日：2007-11-01

申请号：US11790756

申请日：2007-04-27

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

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

摘要： An image forming apparatus includes a plurality of image carriers, an optical writing unit, a plurality of developing units, a transfer member, a transfer unit, an image sensor, and a control unit. In at least one embodiment, the image sensor is configured to sense a positional displacement detection pattern including visible images on the transfer member to detect a positional displacement between the visible images on each of the plurality of image carriers. The control unit is configured to execute a positional displacement correction control to calculate an amount of the positional displacement and determine respective target drive speeds of the plurality of drive sources. The control unit is also configured to control so that the positional displacement detection pattern is formed when the plurality of drive sources are driven at substantially identical speeds and the positional displacement detection pattern thus formed is sensed by the image sensor.

摘要翻译： 图像形成装置包括多个图像载体，光学写入单元，多个显影单元，转印构件，转印单元，图像传感器和控制单元。 在至少一个实施例中，图像传感器被配置为感测包括传送构件上的可见图像的位置检测图案，以检测多个图像载体中的每一个上的可见图像之间的位置偏移。 控制单元被配置为执行位置校正控制以计算位置偏移量并确定多个驱动源的相应目标驱动速度。 控制单元还被配置为控制，使得当以基本相同的速度驱动多个驱动源时形成位置偏移检测图案，并且由图像传感器感测由此形成的位置检测图案。

公开(公告)号：US08331822B2

公开(公告)日：2012-12-11

申请号：US13039012

申请日：2011-03-02

申请人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G2215/00075 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus includes a plurality of image bearing members, each of which is configured to bear a portion of a pattern image including a plurality of reference images in a given form, an endless moving member facing the plurality of image bearing members and configured to receive the pattern image, an image detecting unit configured to detect the plurality of reference images, a rotational angle detecting unit configured to separately detect each image bearing member at a given rotational angle, and a controller configured to detect a speed deviation pattern for each revolution of each image bearing member. The controller is configured to detect the speed deviation pattern based on a result obtained from a phase component and a quadrature component of a frequency signal generated from the detection result obtained by the rotational angle detecting unit and a result of detecting the plurality of reference images in the pattern image transferred onto the endless moving member.

摘要翻译： 图像形成装置包括多个图像承载部件，每个图像承载部件被构造为承载包括给定形式的多个参考图像的图案图像的一部分，面向多个图像承载部件的环形移动部件， 接收图案图像，图像检测单元，被配置为检测多个参考图像;旋转角度检测单元，被配置为以给定的旋转角度独立地检测每个图像承载构件;以及控制器，被配置为检测每个旋转的速度偏差模式 的每个图像承载构件。 控制器被配置为基于从由旋转角度检测单元获得的检测结果产生的频率信号的相位分量和正交分量获得的结果以及检测多个参考图像的结果来检测速度偏差模式 图案图像转印到无端移动部件上。

公开(公告)号：US07937007B2

公开(公告)日：2011-05-03

申请号：US11677013

申请日：2007-02-20

申请人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Kazuhiko Kobayashi ,  Joh Ebara ,  Yasuhisa Ehara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G2215/00075 ,  G03G2215/0132 ,  G03G2215/0161

摘要： An image forming apparatus includes a plurality of image bearing members, each of which is configured to bear a portion of a pattern image including a plurality of reference images in a given form, an endless moving member facing the plurality of image bearing members and configured to receive the pattern image, an image detecting unit configured to detect the plurality of reference images, a rotational angle detecting unit configured to separately detect each image bearing member at a given rotational angle, and a controller configured to detect a speed deviation pattern for each revolution of each image bearing member. The controller is configured to detect the speed deviation pattern based on a result obtained from a phase component and a quadrature component of a frequency signal generated from the detection result obtained by the rotational angle detecting unit and a result of detecting the plurality of reference images in the pattern image transferred onto the endless moving member.

摘要翻译： 图像形成装置包括多个图像承载部件，每个图像承载部件被构造为承载包括给定形式的多个参考图像的图案图像的一部分，面向多个图像承载部件的环形移动部件， 接收图案图像，图像检测单元，被配置为检测多个参考图像;旋转角度检测单元，被配置为以给定的旋转角度独立地检测每个图像承载构件;以及控制器，被配置为检测每个旋转的速度偏差模式 的每个图像承载构件。 控制器被配置为基于从由旋转角度检测单元获得的检测结果产生的频率信号的相位分量和正交分量获得的结果以及检测多个参考图像的结果来检测速度偏差模式 图案图像转印到无端移动部件上。

公开(公告)号：US07693468B2

公开(公告)日：2010-04-06

申请号：US11790756

申请日：2007-04-27

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Kouji Amanai ,  Seiichi Handa ,  Yuji Matsuda ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/01

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

摘要： An image forming apparatus includes a plurality of image carriers, an optical writing unit, a plurality of developing units, a transfer member, a transfer unit, an image sensor, and a control unit. In at least one embodiment, the image sensor is configured to sense a positional displacement detection pattern including visible images on the transfer member to detect a positional displacement between the visible images on each of the plurality of image carriers. The control unit is configured to execute a positional displacement correction control to calculate an amount of the positional displacement and determine respective target drive speeds of the plurality of drive sources. The control unit is also configured to control so that the positional displacement detection pattern is formed when the plurality of drive sources are driven at substantially identical speeds and the positional displacement detection pattern thus formed is sensed by the image sensor.

摘要翻译： 图像形成装置包括多个图像载体，光学写入单元，多个显影单元，转印构件，转印单元，图像传感器和控制单元。 在至少一个实施例中，图像传感器被配置为感测包括传送构件上的可见图像的位置检测图案，以检测多个图像载体中的每一个上的可见图像之间的位置偏移。 控制单元被配置为执行位置校正控制以计算位置偏移量并确定多个驱动源的相应目标驱动速度。 控制单元还被配置为控制，使得当以基本相同的速度驱动多个驱动源时形成位置偏移检测图案，并且由图像传感器感测由此形成的位置检测图案。

公开(公告)号：US20070258729A1

公开(公告)日：2007-11-08

申请号：US11790825

申请日：2007-04-27

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Noriaki Funamoto ,  Seiichi Handa ,  Yuji Matsuda ,  Kouji Amanai ,  Toshiyuki Uchida ,  Keisuke Sugiyama

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Noriaki Funamoto ,  Seiichi Handa ,  Yuji Matsuda ,  Kouji Amanai ,  Toshiyuki Uchida ,  Keisuke Sugiyama

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/5033 ,  G03G15/0131 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/00075 ,  G03G2215/0132 ,  G03G2215/0158

摘要： An image forming apparatus is disclosed. In at least one embodiment, the apparatus includes a plurality of image carriers to carry an image; a plurality of drivers to drive the image carriers; a plurality of drive-force transmitting members to transmit a driving-force from the drivers to image carriers; a developing unit, provided to the image carriers, to develop the image; a transfer member, facing the image carriers, to receive the image from the image carriers sequentially; an image detector to detect the image on the transfer member to check a detection timing of the image; a sensor, provided to each of the image carriers, to detect a rotational speed of image carriers; and a controller to conduct an image-to-image displacement control, a speed-deviation checking, and a phase adjustment control for each of the plurality of image carriers with the image detector and sensor.