公开(公告)号：US08817320B2

公开(公告)日：2014-08-26

申请号：US13300834

申请日：2011-11-21

申请人： Yoshinori Shirasaki ,  Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera ,  Takeshi Shikama ,  Takuhei Yokoyama ,  Akinori Yamaguchi

发明人： Yoshinori Shirasaki ,  Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera ,  Takeshi Shikama ,  Takuhei Yokoyama ,  Akinori Yamaguchi

IPC分类号： G06F15/00 ,  G06K15/12 ,  G06K15/02

CPC分类号： G06K15/1247 ,  G06K15/1223 ,  G06K15/1868

摘要： A line-head control device that controls a line head includes: a calculation unit that divides image data into a plurality of areas in sub-scanning direction and calculates a printing percentage for each of the areas; an allocation unit that allocates a total correction amount, for correcting magnification of the image data in the sub-scanning direction, to the areas according to the printing percentage for each of the areas calculated by the calculation unit; and a control unit that changes an emission period of the light emitted from the line head so as to satisfy a partial correction amount that is an allocation of the total correction amount to each of the areas, exposes the image carrier to the light emitted from the line head with the changed light emission period, thereby causing a latent image to be formed on the image carrier based on the image data.

摘要翻译： 控制行头的行头控制装置包括：计算单元，其将图像数据分割成副扫描方向的多个区域，并计算每个区域的打印百分比; 分配单元，其分配用于将副扫描方向上的图像数据的倍率校正到根据由计算单元计算出的每个区域的打印百分比的区域的总校正量; 以及控制单元，其改变从线路头发射的光的发射周期以满足作为对每个区域的总校正量的分配的部分校正量，将图像载体暴露于从 具有改变的发光周期的线头，从而基于图像数据在图像载体上形成潜像。

公开(公告)号：US08803935B2

公开(公告)日：2014-08-12

申请号：US13898616

申请日：2013-05-21

申请人： Tatsuya Miyadera ,  Kunihiro Komai

发明人： Tatsuya Miyadera ,  Kunihiro Komai

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： G03G15/0435 ,  G02B26/123 ,  G03G15/011 ,  G03G15/326 ,  G03G2215/0161 ,  G03G2215/0404 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04713 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04786 ,  H04N2201/04793 ,  H04N2201/04794

摘要： An apparatus to form plural images on an image conveyor includes plural photoconductor bodies, a light exposure device, a development device, a transfer device, and a pattern detection device, wherein the light exposure device includes an optical scanning part, a first light detection part having a first light receiving face, a second light detection part having a second light receiving face being non-parallel to the first light receiving face, a third light detection part having a third light receiving face being non-parallel to the first light receiving face, the optical scanning part, the first light detection part, and the second light detection part being provided inside a housing of the light exposure device, the third light detection part being provided outside the housing, and a light exposure timing control device.

摘要翻译： 在图像传送器上形成多个图像的装置包括多个感光体，曝光装置，显影装置，转印装置和图案检测装置，其中曝光装置包括光学扫描部分，第一光检测部分 具有第一受光面的第二光检测部，具有与第一受光面不平行的第二受光面的第二光检测部，具有与第一受光面不平行的第三光接收面的第三光检测部， 光学扫描部分，第一光检测部分和第二光检测部分设置在曝光装置的壳体内，第三光检测部分设置在外壳的外部，以及曝光定时控制装置。

公开(公告)号：US08774700B2

公开(公告)日：2014-07-08

申请号：US13224843

申请日：2011-09-02

申请人： Takeshi Shikama ,  Tatsuya Miyadera ,  Izumi Kinoshita ,  Kunihiro Komai ,  Yoshinori Shirasaki ,  Akinori Yamaguchi ,  Takuhei Yokoyama

发明人： Takeshi Shikama ,  Tatsuya Miyadera ,  Izumi Kinoshita ,  Kunihiro Komai ,  Yoshinori Shirasaki ,  Akinori Yamaguchi ,  Takuhei Yokoyama

IPC分类号： G03G15/00

CPC分类号： B65H7/08 ,  B65H2511/242 ,  B65H2511/514 ,  B65H2701/1311 ,  B65H2701/1313 ,  B65H2801/06 ,  G03G15/6567 ,  G03G2215/0161 ,  B65H2220/03 ,  B65H2220/01

摘要： An image processing apparatus includes a reading part configured to optically read skew amount measurement patterns and opposite ends of a paper sheet; an image skew amount detecting part configured to detect skew amounts on a color basis based on the skew amount measurement patterns; a paper sheet skew amount detecting part configured to detect a skew amount of the paper sheet based on a displacement between the opposite ends of the paper sheet; a skew correction amount calculating part configured to calculate skew correction amounts of the respective colors based on the skew amounts; and a skew correcting part configured to shift the images to correct the skews by recording input image data in plural lines of a line memory, dividing the input image data into plural areas in a main scanning direction, and setting line delay amounts on an area basis based on the skew correction amounts.

摘要翻译： 一种图像处理装置，包括读取部件，被配置为光学读取纸张的偏斜量测量图案和相对的两端; 图像偏移量检测部，被配置为基于所述偏斜量测量图案来检测基于颜色的倾斜量; 纸张歪斜量检测部件，被配置为基于纸张的相对端之间的位移来检测纸张的歪斜量; 歪斜校正量计算部，被配置为基于所述歪斜量来计算各颜色的倾斜校正量; 以及偏斜校正部，被配置为通过在行存储器的多行中记录输入图像数据来移位图像以校正偏差，将输入图像数据分割成主扫描方向的多个区域，并且基于区域设置线延迟量 基于偏斜校正量。

公开(公告)号：US08487973B2

公开(公告)日：2013-07-16

申请号：US13315417

申请日：2011-12-09

申请人： Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera

发明人： Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera

IPC分类号： B41J2/435 ,  B41J2/385

CPC分类号： B41J2/447 ,  B41J2/473 ,  G02B26/127 ,  G06K15/1219

摘要： An optical writing device forms an electrostatic latent image on a photosensitive element by a connected light source controlled by a light source control circuit that includes: a pixel data output unit; a pixel data correcting unit that corrects a skew between main scanning line of electrostatic latent image and photosensitive element and a local deviation of the electrostatic latent image on the main scanning line, and outputs pixel data; a pattern generating unit that outputs pixel data for forming a predetermined pattern in an electrostatic latent image; a first light source control unit for causing a first light source, that needs correction of the local deviation, to emit light; a second light source control unit for causing a second light source, that does not need correction of the local deviation, to emit light; and a switch that switches between a first transmission status and a second transmission status.

摘要翻译： 光学写入装置通过由光源控制电路控制的连接的光源在感光元件上形成静电潜像，该光源控制电路包括：像素数据输出单元; 像素数据校正单元，其校正静电潜像的主扫描线与感光元件之间的偏斜和主扫描线上的静电潜像的局部偏差，并输出像素数据; 图案生成单元，其输出用于在静电潜像中形成预定图案的像素数据; 第一光源控制单元，用于使需要校正局部偏差的第一光源发光; 第二光源控制单元，用于使不需要校正局部偏差的第二光源发光; 以及在第一传输状态和第二传输状态之间切换的开关。

公开(公告)号：US08395648B2

公开(公告)日：2013-03-12

申请号：US13046893

申请日：2011-03-14

申请人： Tatsuya Miyadera ,  Masayuki Hayashi ,  Yoshinori Shirasaki

发明人： Tatsuya Miyadera ,  Masayuki Hayashi ,  Yoshinori Shirasaki

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： B41J2/473 ,  G02B26/123 ,  G02B26/127 ,  G03G15/043 ,  G06K15/1219 ,  H04N1/113 ,  H04N2201/0477

摘要： An optical writer includes a scanning part causing a light beam from a light source to perform scanning on a photosensitive body; an image information obtaining part obtaining image information of an image; a dithering information obtaining part obtaining dithering information of the image; a pixel clock generating part generating a pixel clock signal; and a light emission control part to control the light source based on the image information in accordance with the pixel clock signal. The pixel clock generating part modulates the clock frequency of the pixel clock signal in accordance with phase shift information for correcting a change in the speed of the scanning on main scanning lines on the photosensitive body, and determines the timing of modulating the clock frequency based on the dithering information on a main scanning line basis so that the timing of modulating the clock frequency differs between the main scanning lines.

摘要翻译： 光学写入器包括使来自光源的光束在感光体上进行扫描的扫描部分; 获取图像的图像信息的图像信息获取部分; 抖动信息获取部分获得图像的抖动信息; 产生像素时钟信号的像素时钟产生部分; 以及发光控制部，其根据像素时钟信号基于图像信息来控制光源。 像素时钟生成部根据用于校正感光体上的主扫描线上的扫描速度的变化的相移信息来调制像素时钟信号的时钟频率，并且基于 在主扫描线基础上的抖动信息，使得调制时钟频率的定时在主扫描线之间不同。

公开(公告)号：US08369725B2

公开(公告)日：2013-02-05

申请号：US12870207

申请日：2010-08-27

申请人： Tomohiro Ohshima ,  Tatsuya Miyadera ,  Yoshinori Shirasaki

发明人： Tomohiro Ohshima ,  Tatsuya Miyadera ,  Yoshinori Shirasaki

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0132 ,  G03G2215/0164

摘要： An image forming apparatus includes an image forming unit, a first detector including a first light emitting device, a first mixed-light receiving device and a first diffuse reflection light receiving device, a second detector including a second light emitting device and a second mixed-light receiving device, and a concentration correction unit. The first mixed-light receiving device detects a mixed light including regular and diffuse reflection light reflected from a transport member. The first diffuse reflection light receiving device detects the diffuse reflection light. The second mixed-light receiving device detects the mixed light. The concentration correction unit conducts concentration correction using detection results of the first and second detectors. A first correction pattern reflecting the regular and diffuse reflection light and detectable by the first detector and a second correction pattern reflecting only the regular reflection light and detectable by the second detector are formed different positions on the transport member.

摘要翻译： 图像形成装置包括图像形成单元，包括第一发光器件，第一混合光接收器件和第一漫反射光接收器件的第一检测器，包括第二发光器件和第二发光器件的第二检测器， 光接收装置和浓度校正单元。 第一混合光接收装置检测包括从传送构件反射的常规和漫反射光的混合光。 第一漫反射光接收装置检测漫反射光。 第二混合光接收装置检测混合光。 浓度校正单元使用第一和第二检测器的检测结果进行浓度校正。 反映正常和漫反射光并且可被第一检测器检测的第一校正图案和仅反射正常反射光并且可被第二检测器检测的第二校正图案在传送构件上形成不同的位置。

公开(公告)号：US20120154827A1

公开(公告)日：2012-06-21

申请号：US13300834

申请日：2011-11-21

申请人： Yoshinori SHIRASAKI ,  Izumi KINOSHITA ,  Kunihiro KOMAI ,  Tatsuya MIYADERA ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Akinori YAMAGUCHI

发明人： Yoshinori SHIRASAKI ,  Izumi KINOSHITA ,  Kunihiro KOMAI ,  Tatsuya MIYADERA ,  Takeshi SHIKAMA ,  Takuhei YOKOYAMA ,  Akinori YAMAGUCHI

IPC分类号： G06K15/02 ,  G06F15/00

CPC分类号： G06K15/1247 ,  G06K15/1223 ,  G06K15/1868

摘要： A line-head control device that controls a line head includes: a calculation unit that divides image data into a plurality of areas in sub-scanning direction and calculates a printing percentage for each of the areas; an allocation unit that allocates a total correction amount, for correcting magnification of the image data in the sub-scanning direction, to the areas according to the printing percentage for each of the areas calculated by the calculation unit; and a control unit that changes an emission period of the light emitted from the line head so as to satisfy a partial correction amount that is an allocation of the total correction amount to each of the areas, exposes the image carrier to the light emitted from the line head with the changed light emission period, thereby causing a latent image to be formed on the image carrier based on the image data.

摘要翻译： 控制行头的行头控制装置包括：计算单元，其将图像数据分割成副扫描方向的多个区域，并计算每个区域的打印百分比; 分配单元，其分配用于将副扫描方向上的图像数据的倍率校正到根据由计算单元计算出的每个区域的打印百分比的区域的总校正量; 以及控制单元，其改变从线路头发射的光的发射周期以满足作为对每个区域的总校正量的分配的部分校正量，将图像载体暴露于从 具有改变的发光周期的线头，从而基于图像数据在图像载体上形成潜像。

公开(公告)号：US08194266B2

公开(公告)日：2012-06-05

申请号：US12333621

申请日：2008-12-12

申请人： Tatsuya Miyadera ,  Kenji Asuwa ,  Izumi Kinoshita ,  Hiroaki Ikeda ,  Tatsuya Ozaki ,  Yasuo Matsuyama ,  Hirokazu Iwata

发明人： Tatsuya Miyadera ,  Kenji Asuwa ,  Izumi Kinoshita ,  Hiroaki Ikeda ,  Tatsuya Ozaki ,  Yasuo Matsuyama ,  Hirokazu Iwata

IPC分类号： G06F3/12 ,  G06K15/00

CPC分类号： G06K15/129 ,  G03G15/0131 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0141 ,  G03G2215/0161 ,  G06K15/1219

摘要： A positional error detection method forms, on a belt which is transported in a transport direction, positional error detection marks for detecting a positional error between image positions of first and second colors, detects the positional error detection marks on the belt, and computes the positional error based on the detected positional error detection marks. The positional error detection marks include first and second marks which are inclined in mutually opposite directions with respect to the transport direction, and third marks which are perpendicular to the transport direction.

摘要翻译： 位置误差检测方法在传送方向上传送的带上形成用于检测第一和第二颜色的图像位置之间的位置误差的位置误差检测标记，检测带上的位置错误检测标记，并计算位置 基于检测到的位置错误检测标记的错误。 位置误差检测标记包括相对于输送方向相互相反的方向倾斜的第一和第二标记以及与输送方向垂直的第三标记。

公开(公告)号：US08004546B2

公开(公告)日：2011-08-23

申请号：US12359372

申请日：2009-01-26

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： B41J2/385 ,  G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0125 ,  G03G2215/0161

摘要： A deviation amount detecting device for use in an electrophotographic color image forming device is configured to detect whether a deviation for each of toner images of different colors on a transporting member takes place, based on position information which is stored as a result of reading of a first set of deviation detecting patterns by a pattern reading unit.

摘要翻译： 用于电子照相彩色图像形成装置的偏差量检测装置被配置为基于作为读取的结果存储的位置信息来检测是否发生对传送构件上的不同颜色的调色剂图像的偏差 通过图案读取单元的第一组偏差检测图案。

公开(公告)号：US07791628B2

公开(公告)日：2010-09-07

申请号：US12353278

申请日：2009-01-14

申请人： Tatsuya Miyadera

发明人： Tatsuya Miyadera

IPC分类号： B41J2/435 ,  B41J2/47

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0141 ,  G03G2215/0161

摘要： A deviation amount detecting device for use in an electrophotographic color image forming device is configured to correct, during an inter-cycle period in which computation of a first deviation amount using a result of reading of deviation detection patterns is held in a waiting state, a second deviation amount computed using a result of measurement of a scanning time of a light beam, based on a first deviation amount computed at a latest cycle, so that a corrected amount of deviation of a main scanning direction and a corrected amount of deviation of a sub-scanning direction are computed.

摘要翻译： 在电子照相彩色图像形成装置中使用的偏差量检测装置被配置为在使用偏差检测图案的读取结果的第一偏差量的计算保持在等待状态的周期间期间， 基于在最后一个周期计算的第一偏差量，使用光束的扫描时间的测量结果计算出的第二偏差量，使得校正的主扫描方向的偏差量和校正偏差量 计算副扫描方向。