公开(公告)号：US08260179B2

公开(公告)日：2012-09-04

申请号：US12791554

申请日：2010-06-01

申请人： Yohei Miura ,  Kouji Amanai ,  Joh Ebara ,  Toshiyuki Uchida ,  Narumi Sugita ,  Keisuke Sugiyama ,  Kenji Tomita ,  Kimiharu Yamazaki

发明人： Yohei Miura ,  Kouji Amanai ,  Joh Ebara ,  Toshiyuki Uchida ,  Narumi Sugita ,  Keisuke Sugiyama ,  Kenji Tomita ,  Kimiharu Yamazaki

IPC分类号： G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/0178 ,  G03G15/167

摘要： An image forming apparatus includes a primary transfer device that primarily transfers a first image from a first image bearer onto a first belt unit at a primary transfer position, a secondary transfer device that secondarily transfers the first image from the first belt unit onto a printing medium at a secondary transfer position, and a direct transfer device that directly transfers a second image from a second image bearer onto the printing medium at a direct transfer position. A second belt unit is rotatably suspended by plural second rollers and carries and conveys the printing medium through the direct transfer position and the secondary transfer position. An interval between the direct transfer position and the secondary transfer position is prescribed natural number times of a circumference of one of the plural second rollers, which fluctuates a velocity of the second belt unit.

摘要翻译： 图像形成装置包括：一次传送装置，其主要将第一图像从第一图像载体传送到第一传送位置处的第一传送带单元;二次传送装置，其将第一图像从第一传送带单元传送到打印介质上 以及直接传送装置，其将第二图像从第二图像载体直接传送到在直接传送位置处的打印介质上。 第二带单元由多个第二辊可旋转地悬挂，并通过直接转印位置和二次转印位置运送并传送打印介质。 直接转印位置和二次转印位置之间的间隔是多个第二辊之一的周长的规定的自然次数，其使第二带单元的速度波动。

公开(公告)号：US20100310281A1

公开(公告)日：2010-12-09

申请号：US12791554

申请日：2010-06-01

申请人： Yohei MIURA ,  Kouji Amanai ,  Joh Ebara ,  Toshiyuki Uchida ,  Narumi Sugita ,  Keisuke Sugiyama ,  Kenji Tomita ,  Kimiharu Yamazaki

发明人： Yohei MIURA ,  Kouji Amanai ,  Joh Ebara ,  Toshiyuki Uchida ,  Narumi Sugita ,  Keisuke Sugiyama ,  Kenji Tomita ,  Kimiharu Yamazaki

IPC分类号： G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/0178 ,  G03G15/167

摘要： An image forming apparatus includes a primary transfer device that primarily transfers a first image from a first image bearer onto a first belt unit at a primary transfer position, a secondary transfer device that secondarily transfers the first image from the first belt unit onto a printing medium at a secondary transfer position, and a direct transfer device that directly transfers a second image from a second image bearer onto the printing medium at a direct transfer position.A second belt unit is rotatably suspended by plural second rollers and carries and conveys the printing medium through the direct transfer position and the secondary transfer position. An interval between the direct transfer position and the secondary transfer position is prescribed natural number times of a circumference of one of the plural second rollers, which fluctuates a velocity of the second belt unit.

摘要翻译： 图像形成装置包括：一次传送装置，其主要将第一图像从第一图像载体传送到第一传送位置处的第一传送带单元;二次传送装置，其将第一图像从第一传送带单元传送到打印介质上 以及直接传送装置，其将第二图像从第二图像载体直接传送到在直接传送位置处的打印介质上。 第二带单元由多个第二辊可旋转地悬挂，并通过直接转印位置和二次转印位置运送并传送打印介质。 直接转印位置和二次转印位置之间的间隔是多个第二辊之一的周长的规定的自然次数，其使第二带单元的速度波动。

公开(公告)号：US08521046B2

公开(公告)日：2013-08-27

申请号：US12962078

申请日：2010-12-07

申请人： Keisuke Sugiyama ,  Kouji Amanai ,  Joh Ebara ,  Toshiyuki Uchida ,  Yohei Miura ,  Narumi Sugita

发明人： Keisuke Sugiyama ,  Kouji Amanai ,  Joh Ebara ,  Toshiyuki Uchida ,  Yohei Miura ,  Narumi Sugita

IPC分类号： G03G15/00

CPC分类号： G03G15/50 ,  G03G15/0131 ,  G03G2215/0161

摘要： An image forming apparatus includes a recording medium transport belt which is suspended by a plurality of roller members. An image is secondarily transferred from a first image carrier through an intermediate transfer body to a recording medium. An image is directly transferred from a second image carrier to the recording medium. The image forming apparatus further includes a pattern image sensing unit which senses a pattern image transferred from the first image carrier and the second image carrier finally to the recording medium transport belt. Each of a distance from a secondary transfer position to a sensing position and a distance from a direct transfer position to the sensing position in a recording medium transport belt rotation direction is a natural number times a circumferential length of a roller member causing a speed change in the recording medium transport belt among the plurality of roller members.

摘要翻译： 图像形成装置包括由多个辊构件悬挂的记录介质传送带。 将图像从第一图像载体通过中间转印体二次转印到记录介质。 图像直接从第二图像载体传送到记录介质。 图像形成装置还包括图案图像感测单元，其将从第一图像载体传输的图案图像和第二图像载体最终感测到记录介质传送带。 从二次转印位置到感测位置的距离以及从记录介质传送带旋转方向上的直接传送位置到感测位置的距离中的每一个是引起速度变化的辊构件的周向长度的自然数 记录介质传送带在多个辊构件之间。

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：US20070274746A1

公开(公告)日：2007-11-29

申请号：US11742379

申请日：2007-04-30

申请人： YASUHISA EHARA ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Seiichi Handa ,  Noriaki Funamoto ,  Toshiyuki Uchida ,  Keisuke Sugiyama ,  Kouji Amanai

发明人： YASUHISA EHARA ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Seiichi Handa ,  Noriaki Funamoto ,  Toshiyuki Uchida ,  Keisuke Sugiyama ,  Kouji Amanai

IPC分类号： G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/0194 ,  G03G21/02 ,  G03G2215/0119 ,  G03G2215/0161

摘要： An image forming apparatus, in which a program for carrying out an image forming method is provided, includes a transfer member to receive respective images formed on a plurality of image bearing members, an image detecting unit to detect the images conveyed on the transfer member, a paper length detecting unit to detect a length of a recording medium in a sheet travel direction, a counting unit to count the number of recording media and to change a count up value according to a detection result by the paper length detecting unit, and a control unit to control an image forming timing with respect to the image bearing members based on a detection timing of the image and to perform a positional deviation adjustment each time a counted value increases by a predetermined amount so as to reduce an amount of a positional deviation of the image.

摘要翻译： 一种图像形成装置，其中提供了用于执行图像形成方法的程序，该图像形成装置包括用于接收形成在多个图像承载部件上的各个图像的转印部件，用于检测在转印部件上传送的图像的图像检测单元， 纸张长度检测单元，用于检测纸张行进方向上的记录介质的长度;计数单元，用于对记录介质的数量进行计数，并根据纸张长度检测单元的检测结果改变计数上升值;以及 控制单元，基于图像的检测定时来控制相对于图像承载部件的图像形成定时，并且每当计数值增加预定量时执行位置偏差调整，以便减少位置偏差量 的图像。

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：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。