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：US07778575B2

公开(公告)日：2010-08-17

申请号：US11687095

申请日：2007-03-16

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

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

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/5008 ,  G03G15/0194 ,  G03G2215/0161

摘要： An imaging apparatus is disclosed that includes plural image carriers on which different-colored toner images are formed, the image carriers being driven and rotated to transfer the different-colored toner images onto one of an endless transfer member that is driven to rotate in contact with the image carriers or a transfer material that is carried by the endless transfer member. The imaging apparatus includes a phase calculating unit that extracts a periodic rotational variation component of each of the image carriers from a combination of periodic rotational variation components generated within said imaging apparatus and calculates a rotational phase of each of the image carriers based on the extracted periodic rotational variation component, and a rotational phase adjusting unit that adjusts a rotation stop phase of each of the image carriers based on the calculated rotational phase.

摘要翻译： 公开了一种成像装置，其包括多个图像载体，其上形成有不同颜色的调色剂图像，所述图像载体被驱动并旋转，以将不同颜色的调色剂图像转印到被驱动以与 图像载体或由循环传递构件承载的转印材料。 成像装置包括相位计算单元，其从在所述成像装置内生成的周期性旋转变化分量的组合中提取每个图像载波的周期性旋转变化分量，并且基于提取的周期性计算每个图像载波的旋转相位 旋转变化分量，以及旋转相位调整单元，其基于计算出的旋转相位来调整每个图像载体的旋转停止相位。

公开(公告)号：US20070217830A1

公开(公告)日：2007-09-20

申请号：US11687095

申请日：2007-03-16

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

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

IPC分类号： G03G15/01

CPC分类号： G03G15/5008 ,  G03G15/0194 ,  G03G2215/0161

摘要： An imaging apparatus is disclosed that includes plural image carriers on which different-colored toner images are formed, the image carriers being driven and rotated to transfer the different-colored toner images onto one of an endless transfer member that is driven to rotate in contact with the image carriers or a transfer material that is carried by the endless transfer member. The imaging apparatus includes a phase calculating unit that extracts a periodic rotational variation component of each of the image carriers from a combination of periodic rotational variation components generated within said imaging apparatus and calculates a rotational phase of each of the image carriers based on the extracted periodic rotational variation component, and a rotational phase adjusting unit that adjusts a rotation stop phase of each of the image carriers based on the calculated rotational phase.

摘要翻译： 公开了一种成像装置，其包括多个图像载体，其上形成有不同颜色的调色剂图像，所述图像载体被驱动并旋转，以将不同颜色的调色剂图像转印到被驱动以与 图像载体或由循环传递构件承载的转印材料。 成像装置包括相位计算单元，其从在所述成像装置内生成的周期性旋转变化分量的组合中提取每个图像载波的周期性旋转变化分量，并且基于提取的周期性计算每个图像载波的旋转相位 旋转变化分量，以及旋转相位调整单元，其基于计算出的旋转相位来调整每个图像载体的旋转停止相位。

公开(公告)号：US07991326B2

公开(公告)日：2011-08-02

申请号：US11635550

申请日：2006-12-08

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Noriaki Funamoto ,  Seichi Handa ,  Yuji Matsuda

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Noriaki Funamoto ,  Seichi Handa ,  Yuji Matsuda

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/0194 ,  G03G15/5008 ,  G03G2215/00059 ,  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.

摘要翻译： 公开了一种图像形成装置。 在至少一个实施例中，该装置包括用于承载图像的多个图像载体; 驱动图像载体的多个驱动器; 多个驱动力传递构件，用于将驱动力从驾驶员传递到图像载体; 显影单元，提供给图像载体，以显影图像; 面向图像载体的转印构件，以顺序地从图像载体接收图像; 图像检测器，用于检测转印部件上的图像，以检查图像的检测定时; 提供给每个图像载体的传感器，以检测图像载体的旋转速度; 以及控制器，用于使用图像检测器和传感器对多个图像载体中的每一个进行图像到图像位移控制，速度偏差检查和相位调整控制。

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：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.

公开(公告)号：US20070140736A1

公开(公告)日：2007-06-21

申请号：US11635550

申请日：2006-12-08

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

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

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/0194 ,  G03G15/5008 ,  G03G2215/00059 ,  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.

摘要翻译： 公开了一种图像形成装置。 在至少一个实施例中，该装置包括用于承载图像的多个图像载体; 驱动图像载体的多个驱动器; 多个驱动力传递构件，用于将驱动力从驾驶员传递到图像载体; 显影单元，提供给图像载体，以显影图像; 面向图像载体的转印构件，以顺序地从图像载体接收图像; 图像检测器，用于检测所述传送构件上的图像，以检查图像的检测定时; 提供给每个图像载体的传感器，以检测图像载体的旋转速度; 以及控制器，用于使用图像检测器和传感器对多个图像载体中的每一个进行图像到图像位移控制，速度偏差检查和相位调整控制。