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：US07630657B2

公开(公告)日：2009-12-08

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： G03G15/00 ,  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：US20080240754A1

公开(公告)日：2008-10-02

申请号：US11867426

申请日：2007-10-04

申请人： Kazuhiko Kobayashi ,  Yasuhisa Ehara ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Kazuhiko Kobayashi ,  Yasuhisa Ehara ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/0194 ,  G03G15/0189 ,  G03G2215/0141 ,  G03G2215/0161

摘要： An image forming system, in which a method of detecting a misregistration of a color image is performed, includes multiple image carriers, an optical writing unit, a transfer member extended by a drive roller and at least one driven roller, a rotation detector, a roller driving unit, a belt controller, an image detector configured to detect the images formed on the surface of the transfer member and obtain detection data, and a controller configured to calculate an amount of misregistration and correct relative misregistration of a scanning line between the image carriers based on a result of the calculation. In the image forming system, a distance from a transfer position to a detection position is an integer multiple of a travel distance of the transfer member during one revolution of the at least one driven roller.

摘要翻译： 一种图像形成系统，其中执行检测彩色图像的不对准的方法，包括多个图像载体，光学写入单元，由驱动辊延伸的传送部件和至少一个从动辊，旋转检测器， 滚筒驱动单元，皮带控制器，图像检测器，被配置为检测形成在转印部件表面上的图像并获得检测数据;以及控制器，被配置为计算图像之间的扫描线的重合失准和纠正的相对重合失调 基于计算结果的运营商。 在图像形成系统中，从转印位置到检测位置的距离是至少一个从动辊的一转期间转印部件的移动距离的整数倍。

公开(公告)号：US20080131168A1

公开(公告)日：2008-06-05

申请号：US11987608

申请日：2007-12-03

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/5008 ,  G03G2215/0119 ,  G03G2215/0161

摘要： An image forming apparatus includes at least first, second and third image carriers, a first drive source, a second drive source, at least one visible image forming mechanism for forming a visible image on the image carriers, a transfer unit for overlappingly transferring the visible images, an image detector, and a controller. The first drive source transmits a driving force to at least the first image carrier. The second drive source transmits a driving force to at least two image carriers other than the first image carrier. The controller calculates an amount of misalignment of the overlapped visible images that remain at the start timing of image formation based on the start timing of image formation after the timing correction, and separately determines driving speeds of the first and the second drive sources based on the amount of misalignment of the overlapped visible images.

摘要翻译： 图像形成装置至少包括第一，第二和第三图像载体，第一驱动源，第二驱动源，用于在图像载体上形成可见图像的至少一个可视图像形成机构，用于重叠地转移可见光 图像，图像检测器和控制器。 第一驱动源将驱动力传递给至少第一图像载体。 第二驱动源将驱动力传递给除了第一图像载体之外的至少两个图像载体。 控制器基于在定时校正之后的图像形成的开始时刻，计算保持在图像形成的开始定时处的重叠的可见图像的未对准量，并且基于该第一和第二驱动源分别确定第一和第二驱动源的驱动速度 重叠的可见图像的未对准量。

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：US08010026B2

公开(公告)日：2011-08-30

申请号：US11867426

申请日：2007-10-04

申请人： Kazuhiko Kobayashi ,  Yasuhisa Ehara ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Kazuhiko Kobayashi ,  Yasuhisa Ehara ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G15/0189 ,  G03G2215/0141 ,  G03G2215/0161

摘要： An image forming system, in which a method of detecting a misregistration of a color image is performed, includes multiple image carriers, an optical writing unit, a transfer member extended by a drive roller and at least one driven roller, a rotation detector, a roller driving unit, a belt controller, an image detector configured to detect the images formed on the surface of the transfer member and obtain detection data, and a controller configured to calculate an amount of misregistration and correct relative misregistration of a scanning line between the image carriers based on a result of the calculation. In the image forming system, a distance from a transfer position to a detection position is an integer multiple of a travel distance of the transfer member during one revolution of the at least one driven roller.

摘要翻译： 一种图像形成系统，其中执行检测彩色图像的不对准的方法，包括多个图像载体，光学写入单元，由驱动辊延伸的传送部件和至少一个从动辊，旋转检测器， 滚筒驱动单元，皮带控制器，图像检测器，被配置为检测形成在转印部件表面上的图像并获得检测数据;以及控制器，被配置为计算图像之间的扫描线的重合失准和纠正的相对重合失调 基于计算结果的运营商。 在图像形成系统中，从转印位置到检测位置的距离是至少一个从动辊的一转期间转印部件的移动距离的整数倍。

公开(公告)号：US20080166153A1

公开(公告)日：2008-07-10

申请号：US11987994

申请日：2007-12-06

申请人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

发明人： Yasuhisa Ehara ,  Kazuhiko Kobayashi ,  Joh Ebara ,  Toshiyuki Uchida ,  Noriaki Funamoto ,  Keisuke Sugiyama

IPC分类号： G03G15/00

CPC分类号： G03G15/5008 ,  G03G15/0194 ,  G03G2215/00075 ,  H04N1/506

摘要： After detecting a speed fluctuation pattern per rotation of a photosensitive drum, a process that forms an image based on image data while causing the photosensitive drum to rotate at a nonstandard linear speed is executed as an image forming process by driving a process driving motor that drives the photosensitive drum to curb a speed fluctuation of the photosensitive drum by using a driving speed fine tuning pattern. Before executing the image forming process, a fine-tuning-pattern correcting process is executed for correcting the driving speed fine tuning pattern of the process driving motor, based on the nonstandard linear speed.

摘要翻译： 在检测到感光鼓旋转的速度波动图案之后，在使感光鼓以非标准线速度旋转的同时基于图像数据形成图像的处理被执行作为图像形成处理，通过驱动驱动的处理驱动电机 感光鼓通过使用驱动速度微调图案来抑制感光鼓的速度波动。 在执行图像形成处理之前，执行微调图案校正处理，以基于非标准线速度来校正处理驱动电机的驱动速度微调图案。

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。