公开(公告)号：US08285159B2

公开(公告)日：2012-10-09

申请号：US12482666

申请日：2009-06-11

Applicant: Tadayuki Ueda ,  Akifumi Isobe ,  Yoshihito Sasamoto ,  Takashi Nara

Inventor： Tadayuki Ueda ,  Akifumi Isobe ,  Yoshihito Sasamoto ,  Takashi Nara

IPC: G03G15/043

CPC classification number: G03G15/0194 ,  G03G2215/0135 ,  G03G2215/0158

Abstract: A color image forming apparatus for forming toner images by carrying out charging, exposure, and development on at least one photoreceptor drum, and forming color images by transferring the toner images onto sheets, the color image forming apparatus including: a photoreceptor drum which rotates around an axis; an exposure section which intermittently emits a light beam onto the cylindrical surface of the rotating photoreceptor drum along scanning lines parallel to the axis of the photoreceptor drum; a calculation section which calculates a printing ratio of a color image to be formed on one sheet, wherein the printing ratio is the ratio of the area covered by toner in the color image; and a timing control section which controls a timing when the exposure section emits the light beam in a direction of rotation of the photoreceptor drum based on the printing ratio calculated by the calculation section.

Abstract translation: 一种彩色图像形成装置，用于通过在至少一个感光鼓上进行充电，曝光和显影来形成调色剂图像，并通过将调色剂图像转印到片材上形成彩色图像，该彩色图像形成装置包括：感光鼓，其围绕 轴; 曝光部，其沿着与感光鼓的轴线平行的扫描线间歇地将光束发射到旋转感光鼓的圆筒形表面上; 计算部分，其计算要在一张纸上形成的彩色图像的打印率，其中所述打印率是所述彩色图像中的调色剂覆盖的面积的比率; 以及定时控制部，其控制当所述曝光部根据由所述计算部计算出的所述打印率沿所述感光鼓的旋转方向发射所述光束的时刻。

公开(公告)号：US08059145B2

公开(公告)日：2011-11-15

申请号：US12015166

申请日：2008-01-16

Applicant: Tadayuki Ueda ,  Ryuji Okutomi ,  Hiroyuki Watanabe ,  Akifumi Isobe ,  Yoshihito Sasamoto ,  Takashi Nara

Inventor： Tadayuki Ueda ,  Ryuji Okutomi ,  Hiroyuki Watanabe ,  Akifumi Isobe ,  Yoshihito Sasamoto ,  Takashi Nara

IPC: B41J2/44 ,  G03G15/01 ,  G03G13/01

CPC classification number: G03G15/01 ,  G03G2215/0119 ,  G03G2215/0161

Abstract: A color image forming apparatus including: an image forming section which forms an image based on image information on an image carrier provided in the image forming section; a detection section which detects a print mark for color misalignment correction formed on the image carrier by the image forming section, and outputs print mark detection information; and a control section for executing color misalignment correction control based on the print mark detection information outputted from the detection section, wherein, the control section obtains a trend of a color misalignment amount of the print mark by statistically processing data of the result of the print mark detection, calculates an execution timing of color misalignment correction base on the obtained trend, and executes the color misalignment correction at the calculated execution timing.

Abstract translation: 一种彩色图像形成装置，包括：图像形成部，其基于设置在图像形成部中的图像载体上的图像信息形成图像; 检测部，其检测由所述图像形成部在所述图像载体上形成的用于颜色不对准校正的打印标记，并输出打印标记检测信息; 以及控制部分，用于根据从检测部分输出的打印标记检测信息执行颜色不对准校正控制，其中，控制部分通过统计处理打印结果的数据来获得打印标记的颜色不对准量的趋势 根据获得的趋势，计算出颜色不对准校正的执行定时，并在计算出的执行时刻执行颜色未对准校正。

公开(公告)号：US07978995B2

公开(公告)日：2011-07-12

申请号：US11882922

申请日：2007-08-07

Applicant: Akifumi Isobe ,  Shigeo Ogino ,  Hiroyuki Watanabe ,  Tadayuki Ueda ,  Yoshihito Sasamoto ,  Takashi Nara

Inventor： Akifumi Isobe ,  Shigeo Ogino ,  Hiroyuki Watanabe ,  Tadayuki Ueda ,  Yoshihito Sasamoto ,  Takashi Nara

IPC: G03G15/20

CPC classification number: G03G15/5004 ,  G03G15/0194 ,  G03G2215/0135 ,  G03G2215/0158

Abstract: An image forming apparatus having a process correction mode wherein when a temperature of a fixing device in an image formation system in a power-on state is equal to or less than a predetermined value, the image forming apparatus increases the fixing temperature to the predetermined value. The apparatus sets the process correction mode based on power-on information output from a first detector which detects presence of the power-on state for the fixing device and fixing temperature information output from a second detector which detects a fixing temperature in the fixing device, and sets a priority level for performing a correction processing of the color misregistration to be lower than a correction processing comprising an image density adjustment.

Abstract translation: 一种具有处理校正模式的图像形成装置，其中当处于通电状态的图像形成系统中的定影装置的温度等于或小于预定值时，图像形成装置将定影温度升高到预定值 。 该装置基于检测固定装置的通电状态的存在和从检测定影装置中的定影温度的第二检测器输出的固定温度信息的第一检测器输出的通电信息，设定处理校正模式， 并且将用于执行颜色重合失调的校正处理的优先级设置为低于包括图像浓度调整的校正处理。

公开(公告)号：US07777896B2

公开(公告)日：2010-08-17

申请号：US11586685

申请日：2006-10-26

Applicant: Tadayuki Ueda ,  Hiroyuki Watanabe ,  Akifumi Isobe ,  Yoshihito Sasamoto ,  Takashi Nara

Inventor： Tadayuki Ueda ,  Hiroyuki Watanabe ,  Akifumi Isobe ,  Yoshihito Sasamoto ,  Takashi Nara

IPC: G01B11/24

CPC classification number: G03G15/0131 ,  G03G2215/0161

Abstract: A signal processing apparatus comprising: an optical sensor for outputting a detection signal by detecting a surface of a recording medium on which a correction image is to be formed; and a control section configured to obtain a detection signal of the surface of the recording medium with the correction image from which a dominant frequency component has been deleted by making reverse frequency analysis of an analysis signal that has been obtained by making a frequency analysis of a detection signal outputted by the optical sensor detecting the surface of the recording medium on which the correction image it formed.

Abstract translation: 一种信号处理装置，包括：光学传感器，用于通过检测要在其上形成校正图像的记录介质的表面来输出检测信号; 以及控制部，被配置为通过对通过进行频率分析获得的分析信号进行反向频率分析，获得具有主频分量已经被删除的校正图像的记录介质的表面的检测信号 由光学传感器输出的检测信号，检测其上形成有校正图像的记录介质的表面。

公开(公告)号：US20090269089A1

公开(公告)日：2009-10-29

申请号：US12211632

申请日：2008-09-16

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

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

IPC: G03G15/01

CPC classification number: B41J29/393 ,  G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0161 ,  G06K15/129 ,  H04N1/506

Abstract: 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.

Abstract translation: 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

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

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

IPC: G03G15/20

CPC classification number: G03G15/5008

Abstract: 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.

Abstract translation: 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：US20090123182A1

公开(公告)日：2009-05-14

申请号：US12262356

申请日：2008-10-31

Applicant: Yoshihito SASAMOTO ,  Hiroyuki WATANABE ,  Tadayuki UEDA ,  Ryuji OKUTOMI ,  Akifumi ISOBE ,  Takashi NARA ,  Jun ONISHI

Inventor： Yoshihito SASAMOTO ,  Hiroyuki WATANABE ,  Tadayuki UEDA ,  Ryuji OKUTOMI ,  Akifumi ISOBE ,  Takashi NARA ,  Jun ONISHI

IPC: G03G15/00

CPC classification number: G03G15/0194 ,  G03G2215/0158

Abstract: An image forming apparatus including photoconductor drums corresponding to colors, motors, gears to transmit each rotation of the motors to each of the photoconductor drums, each of two gears comprising a portion to be detected intermittently continuing in a circumferential direction at a position having same radius centering around a rotary shaft of the gears, a pair of phase sensors to output detection signals of signal logics according to an existence or a non-existence of the portion to be detected at a point symmetric position centering around the rotary shaft of each of two gears and a control unit to calculate a rotation phase difference between each of the gears based on a logical combination of the detection signals which are output from the pair of phase sensors and to control the motors so as to synchronize rotation of each of the gears based on the calculated rotation phase difference.

Abstract translation: 一种图像形成装置，包括对应于颜色的感光鼓，电动机，齿轮，用于将电动机的每个旋转传递到每个感光鼓，两个齿轮中的每一个包括在具有相同半径的位置处间歇地沿圆周方向连续的待检测部分 以齿轮的旋转轴为中心，一对相位传感器根据在两个旋转轴中心的对称位置处根据被检测部分的存在或不存在来输出信号逻辑的检测信号 齿轮和控制单元，用于基于从该对相位传感器输出的检测信号的逻辑组合来计算每个齿轮之间的旋转相位差，并且控制马达以使每个齿轮的旋转同步 计算旋转相位差。

公开(公告)号：US20080118273A1

公开(公告)日：2008-05-22

申请号：US11872173

申请日：2007-10-15

Applicant: Satoshi Ogata ,  Jun Onishi ,  Tadayuki Ueda

Inventor： Satoshi Ogata ,  Jun Onishi ,  Tadayuki Ueda

IPC: G03G15/00

CPC classification number: G03G15/16 ,  G03G15/50

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07263314B2

公开(公告)日：2007-08-28

申请号：US11235149

申请日：2005-09-27

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

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

IPC: G03G15/20

CPC classification number: G03G15/5008

Abstract: 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.

Abstract translation: 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

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

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

IPC: G03G15/00

CPC classification number: G03G15/5008

Abstract: 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.