公开(公告)号：US07392002B2

公开(公告)日：2008-06-24

申请号：US11234109

申请日：2005-09-26

申请人： Eiji Nishikawa ,  Ryuji Okutomi ,  Satoshi Ogata ,  Tadayuki Ueda

发明人： Eiji Nishikawa ,  Ryuji Okutomi ,  Satoshi Ogata ,  Tadayuki Ueda

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0158

摘要： When conducting a color-shift-correcting mode using a registration mark formed by the image forming section on an image carrier, the image detecting section outputs the image detection signal representing the line width of the registration mark and the control section calculates the line width of the registration mark from the image detection signal. The control section compares a line width of the registration mark with a predetermined reference value of the line width to discriminate between abnormality and normality. If normality, the control section continues the color-shift-correcting mode and if abnormality the control section conducts the image forming system restoration mode after stopping the execution of the color-shift-correcting mode. Therefore, even in the case where a white spot is generated for some reasons on the registration mark, the color-shift-correcting mode can be conducted on the normal registration mark with the help of the image forming system restoration mode.

摘要翻译： 当使用由图像载体上的图像形成部分形成的对准标记进行颜色偏移校正模式时，图像检测部分输出表示对准标记的线宽的图像检测信号，并且控制部分计算线宽 来自图像检测信号的对准标记。 控制部分将对准标记的线宽与线宽的预定参考值进行比较，以区分异常和正常。 如果正常，则控制部分继续色移校正模式，并且如果异常，控制部分在停止执行色移校正模式之后进行图像形成系统恢复模式。 因此，即使在由于某种原因在对准标记上产生白点的情况下，也可借助于图像形成系统恢复模式在正常对准标记上进行色移校正模式。

公开(公告)号：US07079172B2

公开(公告)日：2006-07-18

申请号：US10032185

申请日：2001-12-21

申请人： Kenji Izumiya ,  Hiroyuki Maruyama ,  Tadayuki Ueda ,  Ryuji Okutomi ,  Eiji Nishikawa ,  Satoshi Ogata ,  Shinobu Kishi

发明人： Kenji Izumiya ,  Hiroyuki Maruyama ,  Tadayuki Ueda ,  Ryuji Okutomi ,  Eiji Nishikawa ,  Satoshi Ogata ,  Shinobu Kishi

IPC分类号： B41J2/435

CPC分类号： H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02443 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04774 ,  H04N2201/04784 ,  H04N2201/04798

摘要： The invention concerns an image-forming apparatus employing a clock-generating circuit, which generates dot clock pulses utilized for an image-writing section of the image-forming apparatus. The clock-generating circuit includes a digital-delay dot clock adjusting section to generate first dot clock pulses having a predetermined number of pulses within a predetermined time interval at a constant exposing range of the image-writing section, wherein each period of the first dot clock pulses is slightly increased or reduced by changing a selection for a plurality of delayed clock pulses, which are generated by delaying clock-pulses, outputted from a reference oscillator, in slightly different delay times; and a jitter suppressing section to suppress a jitter component included in the first dot clock pulses, wherein the jitter suppressing section divides the first dot clock pulses to generate second dot clock pulses, and then, multiplies the second dot clock pulses to generate the dot clock pulses.

公开(公告)号：US20050206934A1

公开(公告)日：2005-09-22

申请号：US11126129

申请日：2005-05-10

申请人： Eiji Nishikawa ,  Hiroyuki Maruyama ,  Hiroyuki Arai ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Shinobu Kishi ,  Satoshi Ogata ,  Kenichi Ozawa ,  Tadayuki Ueda ,  Yumiko Higashi

发明人： Eiji Nishikawa ,  Hiroyuki Maruyama ,  Hiroyuki Arai ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Shinobu Kishi ,  Satoshi Ogata ,  Kenichi Ozawa ,  Tadayuki Ueda ,  Yumiko Higashi

IPC分类号： B41J29/393 ,  G03F3/08 ,  G03G15/01 ,  G06F15/00 ,  G06K15/12 ,  H04N1/50

CPC分类号： B41J29/393 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161 ,  G06K15/129 ,  H04N1/506

摘要： In an image forming apparatus for forming a color image by superposing component color images, a control device obtains position data representing a forming position of each of plural registration mark images for the component color images with respect to a positional reference value arbitrarily determined, divides the position data into each of a unit reference range representing a range in which one mark image is formed, converts the position data divided for each unit reference range into those based on respective reference values representing the front edge of the unit reference ranges, extracts the position data representing ranges common to the mutually overlapping ranges each of which is representing by a couple of position data corresponding to the rising and falling edges of a passage timing pulse as read position data of the mark image of the component color, and calculates the amounts of positional deviations of the component color images from one another on the basis of the position data extracted.

摘要翻译： 在通过叠加分量彩色图像形成彩色图像的图像形成装置中，控制装置获取表示相对于任意确定的位置基准值的分量彩色图像的多个对准标记图像中的每一个的形成位置的位置数据， 将位置数据分配到表示形成一个标记图像的范围的单位基准范围的每一个中，根据表示单位基准范围的前沿的各个基准值，将每个单位基准范围划分的位置数据转换为基准值， 数据表示相互重叠的范围共同的范围，每个范围通过对应于通过定时脉冲的上升沿和下降沿的一对位置数据表示为分量颜色的标记图像的读取位置数据，并且计算 基于此，分量彩色图像彼此的位置偏差 提取位置数据。

公开(公告)号：US06724161B2

公开(公告)日：2004-04-20

申请号：US10060518

申请日：2002-01-30

申请人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Kenji Izumiya ,  Ryuji Okutomi ,  Eiji Nishikawa ,  Satoshi Ogata ,  Shinobu Kishi

发明人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Kenji Izumiya ,  Ryuji Okutomi ,  Eiji Nishikawa ,  Satoshi Ogata ,  Shinobu Kishi

IPC分类号： H02P546

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： The invention concerns an improvement of a drive system of a color image forming apparatus. The color image-forming apparatus includes a plurality of image-forming elements; a plurality of first driving motors, each of which corresponds to each of the image-forming elements, to drive the plurality of image-forming elements; an intermediate transfer element that is disposed opposite the plurality of image-forming elements; a second driving motor to drive the intermediate transfer element; and a controlling section to control the plurality of first driving motors and the second driving motor. In the color image-forming apparatus, the controlling section controls the plurality of first driving motors and the second driving motor independently of each other, so that a first peripheral speed of each of the image-forming elements coincides with a second peripheral speed of the intermediate transfer element.

摘要翻译： 本发明涉及彩色图像形成装置的驱动系统的改进。 彩色图像形成装置包括多个图像形成元件; 多个第一驱动马达，每个第一驱动马达对应于每个图像形成元件，以驱动多个图像形成元件; 与所述多个图像形成元件相对设置的中间转印元件; 驱动中间转印元件的第二驱动电机; 以及控制部分，用于控制多个第一驱动马达和第二驱动马达。 在彩色图像形成装置中，控制部分彼此独立地控制多个第一驱动马达和第二驱动马达，使得每个图像形成元件的第一圆周速度与第二圆周速度一致 中间转印元件。

公开(公告)号：US20080213001A1

公开(公告)日：2008-09-04

申请号：US12010154

申请日：2008-01-22

申请人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

发明人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

IPC分类号： G03G15/00

CPC分类号： G03G15/5008

摘要： An image printing apparatus includes a control unit which controls a rotational speed of an image carrier; a detecting unit which detects data of the rotational speed; a storage unit which stores the rotational speeds up to n past rotation cycle of said image carrier; and a determining unit which determines whether a rotational speed difference between a latest rotational speed in a current rotation cycle and a rotational speed in n past rotation cycle before the current rotation cycle at a predetermined interval, which includes the same rotational position in respective rotation cycles and its near position, is more than a predetermined reference value, wherein said control unit controls the rotational speed of said image carrier by using the data of rotational speeds at a predetermined interval including the same rotational position in one or n past rotation cycle before the current rotation cycle, and further said control unit controls a rotational speed in a subsequent rotation cycle next to the current rotation cycle in accordance with a determination result obtained by said determining unit.

摘要翻译： 图像打印设备包括：控制单元，其控制图像载体的旋转速度; 检测单元，其检测转速的数据; 存储单元，其存储直到所述图像载体的旋转周期为n过去的旋转速度; 以及确定单元，其确定在当前旋转周期中的最新旋转速度与在当前旋转周期之前的n个过去旋转周期中的旋转速度之间的旋转速度差异是以预定间隔包括在各旋转周期中的相同旋转位置 并且其接近位置大于预定的参考值，其中所述控制单元通过使用包括在前一个或过去旋转周期中的相同旋转位置的预定间隔的旋转速度的数据来控制所述图像载体的旋转速度 当前旋转周期，并且所述控制单元根据由所述确定单元获得的确定结果控制在当前旋转周期之后的随后旋转周期中的转速。

公开(公告)号：US07606516B2

公开(公告)日：2009-10-20

申请号：US12010154

申请日：2008-01-22

申请人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

发明人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

IPC分类号： G03G15/20

CPC分类号： G03G15/5008

摘要： An image printing apparatus includes a control unit which controls a rotational speed of an image carrier; a detecting unit which detects data of the rotational speed; a storage unit which stores the rotational speeds up to n past rotation cycle of said image carrier; and a determining unit which determines whether a rotational speed difference between a latest rotational speed in a current rotation cycle and a rotational speed in n past rotation cycle before the current rotation cycle at a predetermined interval, which includes the same rotational position in respective rotation cycles and its near position, is more than a predetermined reference value, wherein said control unit controls the rotational speed of said image carrier by using the data of rotational speeds at a predetermined interval including the same rotational position in one or n past rotation cycle before the current rotation cycle, and further said control unit controls a rotational speed in a subsequent rotation cycle next to the current rotation cycle in accordance with a determination result obtained by said determining unit.

摘要翻译： 图像打印设备包括：控制单元，其控制图像载体的旋转速度; 检测单元，其检测转速的数据; 存储单元，其存储直到所述图像载体的旋转周期为n过去的旋转速度; 以及确定单元，其确定在当前旋转周期中的最新旋转速度与在当前旋转周期之前的n个过去旋转周期中的旋转速度之间的旋转速度差异是以预定间隔包括在各旋转周期中的相同旋转位置 并且其接近位置大于预定的参考值，其中所述控制单元通过使用包括在前一个或过去旋转周期中的相同旋转位置的预定间隔的旋转速度的数据来控制所述图像载体的旋转速度 当前旋转周期，并且所述控制单元根据由所述确定单元获得的确定结果控制在当前旋转周期之后的随后旋转周期中的转速。

公开(公告)号：US07263314B2

公开(公告)日：2007-08-28

申请号：US11235149

申请日：2005-09-27

申请人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

发明人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

IPC分类号： G03G15/20

CPC分类号： G03G15/5008

摘要： An image printing apparatus includes a control unit which controls a rotational speed of an image carrier; a detecting unit which detects data of the rotational speed; a storage unit which stores the rotational speeds up to n past rotation cycle of said image carrier; and a determining unit which determines whether a rotational speed difference between a latest rotational speed in a current rotation cycle and a rotational speed in n past rotation cycle before the current rotation cycle at a predetermined interval, which includes the same rotational position in respective rotation cycles and its near position, is more than a predetermined reference value, wherein said control unit controls the rotational speed of said image carrier by using the data of rotational speeds at a predetermined interval including the same rotational position in one or n past rotation cycle before the current rotation cycle, and further said control unit controls a rotational speed in a subsequent rotation cycle next to the current rotation cycle in accordance with a determination result obtained by said determining unit.

摘要翻译： 图像打印设备包括：控制单元，其控制图像载体的旋转速度; 检测单元，其检测转速的数据; 存储单元，其存储直到所述图像载体的旋转周期为n过去的旋转速度; 以及确定单元，其确定在当前旋转周期中的最新旋转速度与在当前旋转周期之前的n个过去旋转周期中的旋转速度之间的旋转速度差异是以预定间隔包括在各旋转周期中的相同旋转位置 并且其接近位置大于预定的参考值，其中所述控制单元通过使用包括在前一个或过去旋转周期中的相同旋转位置的预定间隔的旋转速度的数据来控制所述图像载体的旋转速度 当前旋转周期，并且所述控制单元根据由所述确定单元获得的确定结果控制在当前旋转周期之后的随后旋转周期中的转速。

公开(公告)号：US20060171741A1

公开(公告)日：2006-08-03

申请号：US11235149

申请日：2005-09-27

申请人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

发明人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

IPC分类号： G03G15/00

CPC分类号： G03G15/5008

摘要： An image printing apparatus includes a control unit which controls a rotational speed of an image carrier; a detecting unit which detects data of the rotational speed; a storage unit which stores the rotational speeds up to n past rotation cycle of said image carrier; and a determining unit which determines whether a rotational speed difference between a latest rotational speed in a current rotation cycle and a rotational speed in n past rotation cycle before the current rotation cycle at a predetermined interval, which includes the same rotational position in respective rotation cycles and its near position, is more than a predetermined reference value, wherein said control unit controls the rotational speed of said image carrier by using the data of rotational speeds at a predetermined interval including the same rotational position in one or n past rotation cycle before the current rotation cycle, and further said control unit controls a rotational speed in a subsequent rotation cycle next to the current rotation cycle in accordance with a determination result obtained by said determining unit.

公开(公告)号：US20070248383A1

公开(公告)日：2007-10-25

申请号：US11785868

申请日：2007-04-20

申请人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

发明人： Tadayuki Ueda ,  Hiroyuki Maruyama ,  Toshihiro Motoi ,  Kenji Izumiya ,  Ryuji Okutomi ,  Satoshi Ogata

IPC分类号： G03G15/00

CPC分类号： G03G15/5008

摘要： An image printing apparatus includes a control unit which controls a rotational speed of an image carrier; a detecting unit which detects data of the rotational speed; a storage unit which stores the rotational speeds up to n past rotation cycle of said image carrier; and a determining unit which determines whether a rotational speed difference between a latest rotational speed in a current rotation cycle and a rotational speed in n past rotation cycle before the current rotation cycle at a predetermined interval, which includes the same rotational position in respective rotation cycles and its near position, is more than a predetermined reference value, wherein said control unit controls the rotational speed of said image carrier by using the data of rotational speeds at a predetermined interval including the same rotational position in one or n past rotation cycle before the current rotation cycle, and further said control unit controls a rotational speed in a subsequent rotation cycle next to the current rotation cycle in accordance with a determination result obtained by said determining unit.

公开(公告)号：US20080118273A1

公开(公告)日：2008-05-22

申请号：US11872173

申请日：2007-10-15

申请人： Satoshi Ogata ,  Jun Onishi ,  Tadayuki Ueda

发明人： Satoshi Ogata ,  Jun Onishi ,  Tadayuki Ueda

IPC分类号： G03G15/00

CPC分类号： G03G15/16 ,  G03G15/50

摘要： An image forming apparatus having a rotation body which is used for transferring an image, a drive section which rotates the rotation body, and a control section which sends a control signal to the drive section to control a speed of the rotation body, the image forming apparatus including: a test signal generating section which generates a test signal and adds it to the control signal; an angular velocity detecting section which detects an angular velocity of the rotation body; and a transfer function calculating section which obtains a latest transfer function of a rotation system including the rotation body and drive section, based on the angular velocity detected by the angular velocity detecting section and the test signal generated by the test signal generating section, wherein the control section controls the drive section, based on the latest transfer function obtained by the transfer function calculating section.

摘要翻译： 一种图像形成装置，具有用于传送图像的旋转体，旋转体的驱动部，以及向驱动部发送控制信号以控制旋转体的速度的控制部，成像部 该装置包括：测试信号产生部分，其生成测试信号并将其加到控制信号上; 角速度检测部，其检测旋转体的角速度; 以及传递函数计算部，其基于由角速度检测部检测出的角速度和由测试信号生成部生成的测试信号，求出包括旋转体和驱动部的旋转系统的最新传递函数，其中， 控制部基于由传递函数计算部获得的最新传递函数来控制驱动部。