公开(公告)号：US06911993B2

公开(公告)日：2005-06-28

申请号：US10435743

申请日：2003-05-08

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 represented 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有的范围，每个数据由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：US06839078B2

公开(公告)日：2005-01-04

申请号：US10378801

申请日：2003-03-04

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

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

IPC分类号： B41J2/44 ,  G02B26/12 ,  G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G21/00 ,  H04N1/04 ,  H04N1/113 ,  H04N1/23 ,  B41J2/435 ,  B41J2/47

CPC分类号： G02B26/122

摘要： There is described a duplex image-forming apparatus having a function of forming images onto both sides of a transfer material. The apparatus includes an image-forming section to respectively form an obverse-side image and a reverse-side image on a photoreceptor element by scanning a light beam, modulated with image signals based on pixel-clock signals and reflected from a polygon mirror rotating at an operating velocity based on polygon-clock signals; a transferring section to transfer said obverse-side image and said reverse-side image onto both surfaces of said recording sheet; a fixing section to fix the images onto both surfaces of said recording sheet; and a clock-frequency changing section to change a pixel-clock frequency, and a polygon-clock frequency, corresponding to a degree of shrinkage of said recording sheet caused by a fixing operation performed in said fixing section, at a transition time of an image-forming operation from one side to another side.

公开(公告)号：US07876342B2

公开(公告)日：2011-01-25

申请号：US12211632

申请日：2008-09-16

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： G03G15/01

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 represented 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有的范围，每个数据由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：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：US20090269089A1

公开(公告)日：2009-10-29

申请号：US12211632

申请日：2008-09-16

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： G03G15/01

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 represented 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来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有的范围，每个数据由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：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：US07542058B2

公开(公告)日：2009-06-02

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： G03G15/01

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：US20050206980A1

公开(公告)日：2005-09-22

申请号：US11126128

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 represented 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.