公开(公告)号：US08482588B2

公开(公告)日：2013-07-09

申请号：US13230104

申请日：2011-09-12

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

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

IPC分类号： B41J2/385 ,  B41J2/435 ,  B41J2/47

CPC分类号： G03G15/043 ,  H04N1/3878

摘要： An optical writing device that forms an electrostatic latent image on a photoreceptor. The device includes a pixel-information acquiring unit, a line-pixel-information storage unit that stores the acquired pixel information corresponding to a plurality of lines for each main scanning line, a light source device that exposes the photoreceptor with a period corresponding to an N-fold sub-scanning direction resolution of the pixel information, a positional-shift-information storage unit that stores a positional shift information, a sub-line counting unit that counts a sub-line period, a reading-line selecting unit that performs N times of selection that determines which main scanning line is selected as the line from which the pixel information is read out, on the basis of a calculated value from the counted value of the sub-line period and the positional shift information, and a pixel-information reading unit.

摘要翻译： 一种在感光体上形成静电潜像的光学写入装置。 该装置包括：像素信息获取单元，存储与每个主扫描线对应的多行的所获取的像素信息的行像素信息存储单元，以与对应于 像素信息的N倍副扫描方向分辨率，存储位置偏移信息的位置偏移信息存储单元，对子行周期进行计数的子行计数单元，执行的读取行选择单元 基于从子行周期的计数值和位置偏移信息的计算值，确定选择哪个主扫描线作为从其读出像素信息的行的选择的N次，以及像素 信息阅读单位。

公开(公告)号：US20120147114A1

公开(公告)日：2012-06-14

申请号：US13307865

申请日：2011-11-30

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

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

IPC分类号： B41J2/385

CPC分类号： B41J2/45 ,  G03G15/04054 ,  G03G15/043 ,  G03G15/5008 ,  G03G15/5033 ,  G03G15/505 ,  G03G21/145 ,  G03G2215/0132 ,  G03G2215/0409

摘要： A light emission control device images an electrostatic latent image on a photosensitive element by a plurality of light emitting elements corresponding to a line in a second direction perpendicular to a first direction which is a rotational direction the photosensitive element. The light emission control device includes: a detecting unit that detects a rotational position of the photosensitive element, in the first direction, corresponding to a line in the second direction; an acquiring unit that acquires a distance between the light emitting elements and the rotational position of the photosensitive element in the first direction detected by the detecting unit; and a control unit that controls light emission by the light emitting elements according to the distance acquired by the acquiring unit and corrects a fluctuation in a density of a visible image converted from the electrostatic latent image.

摘要翻译： 发光控制装置通过与作为感光元件的旋转方向的第一方向垂直的第二方向上的线对应的多个发光元件将感光元件上的静电潜像成像。 发光控制装置包括：检测单元，其在与第二方向上的线对应的第一方向上检测感光元件的旋转位置; 获取单元，其获取由所述检测单元检测到的所述发光元件与所述感光元件在所述第一方向上的旋转位置之间的距离; 以及控制单元，其根据由所述获取单元获取的距离来控制所述发光元件的发光，并校正从所述静电潜像转换的可见图像的浓度的波动。

公开(公告)号：US20110052232A1

公开(公告)日：2011-03-03

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：US20100119273A1

公开(公告)日：2010-05-13

申请号：US12616267

申请日：2009-11-11

申请人： Kunihiro KOMAI ,  Tatsuya Miyadera ,  Yoshinori Shirasaki

发明人： Kunihiro KOMAI ,  Tatsuya Miyadera ,  Yoshinori Shirasaki

IPC分类号： G03G15/00

CPC分类号： G03G15/168 ,  G03G15/0131 ,  G03G15/6564 ,  G03G15/6567

摘要： An image forming apparatus includes an endless belt, image forming units disposed along the endless belt, an image skew obtaining unit, a recording medium skew obtaining unit, and a skew correction unit. The image forming unit includes an image carrying member to form a toner image. A correction pattern formed of toner image is formed on the endless belt. The image skew obtaining unit obtains skew of toner image based on a detection result of the correction pattern. The recording medium skew obtaining unit obtains skew of the recording medium based on detection of an edge of the recording medium. The skew correction unit corrects an image forming position of the toner image on the image carrying member using correction data prepared from the obtained skew for the correction pattern and the obtained skew for the recording medium.

摘要翻译： 图像形成装置包括环形带，沿着环形带设置的图像形成单元，图像偏斜获取单元，记录介质偏斜获取单元和歪斜校正单元。 图像形成单元包括形成调色剂图像的图像承载构件。 在环形带上形成由调色剂图像形成的校正图案。 图像偏斜获取单元基于校正图案的检测结果获得调色剂图像的倾斜。 记录介质偏斜获得单元基于记录介质的边缘的检测来获得记录介质的偏斜。 歪斜校正单元使用从获得的校正图案的偏斜准备的校正数据和获得的记录介质的歪斜来校正图像承载构件上的调色剂图像的图像形成位置。

公开(公告)号：US08659630B2

公开(公告)日：2014-02-25

申请号：US13230065

申请日：2011-09-12

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

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

IPC分类号： B41J2/415 ,  G03G13/04

CPC分类号： H04N1/40056 ,  G03G15/04018 ,  H04N1/506

摘要： An embodiment of the image processing apparatus for controlling the lighting of a line head that is driven with binary data and performs exposure with subline lighting to thereby form images, includes: a subline generating unit that generates a plurality of sublines from a same image data; an inclination correcting unit that exposes the generated sublines so as to generate correction image data used to correct an inclination of an exposure position; a gradation control unit that controls the lighting of sublines based on the correction image data generated by the inclination correcting unit to express gradation; and a light intensity correction unit that corrects and controls the light intensity based on the correction image data generated by the inclination correcting unit, wherein an output of the gradation control unit and an output of the light intensity correction unit are input into the line head in parallel.

摘要翻译： 用于控制用二进制数据驱动的线头照明的图像处理装置的实施例，并且利用子线照明进行曝光从而形成图像，包括：从线图生成单元，从同一图像数据生成多个子线; 倾斜校正单元，其暴露所生成的子线以产生用于校正曝光位置的倾斜度的校正图像数据; 灰度控制单元，其基于由倾斜校正单元生成的校正图像数据来控制子系列的点亮以表示灰度; 以及光强度校正单元，其基于由倾斜校正单元生成的校正图像数据校正和控制光强度，其中灰度控制单元的输出和光强度校正单元的输出被输入到行头中 平行。

公开(公告)号：US08411124B2

公开(公告)日：2013-04-02

申请号：US13224987

申请日：2011-09-02

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

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

IPC分类号： B41J2/435 ,  B41J2/47 ,  B41J2/45

CPC分类号： G06K15/1247

摘要： A pixel information acquiring unit acquires multilevel pixel information in which one pixel is expressed in multilevel scales. A line pixel information storing unit stores the multilevel pixel information for each main scanning line. A light emission control unit optically exposes a photosensitive element by controlling a binary light source on the basis of the multilevel pixel information. The photosensitive element is exposed to the binary light source with a period corresponding to N-fold in a sub scanning direction resolution of the multilevel pixel information, wherein N is a positive integer, so that the N times exposures corresponds to an exposure for one pixel in an original resolution. The switch on/off statuses of the binary light source are controlled in the N times exposures for each pixel, on the basis of lighting rate information for converting the multilevel scales into a lighting rate in the N times exposures.

摘要翻译： 像素信息获取单元获取其中以多级尺度表示一个像素的多级像素信息。 线像素信息存储单元存储每条主扫描线的多级像素信息。 光发射控制单元通过基于多级像素信息控制二进制光源光学曝光光敏元件。 感光元件以多级像素信息的副扫描方向分辨率对应于N倍的周期曝光到二进制光源，其中N是正整数，使得N次曝光对应于一个像素的曝光 以原始决议。 基于用于将多级尺转换为N次曝光中的照明率的照明率信息，对于每个像素，在二次曝光的N次曝光中控制二进制光源的开/关状态。

公开(公告)号：US20120056961A1

公开(公告)日：2012-03-08

申请号：US13224987

申请日：2011-09-02

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

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

IPC分类号： B41J2/385

CPC分类号： G06K15/1247

摘要： An optical writing device is provided with a pixel information acquiring unit that acquires multilevel pixel information in which one pixel is expressed in multilevel scales, a line pixel information storing unit that stores the multilevel pixel information for each main scanning line, a light emission control unit that optically exposes the photosensitive element by controlling the binary light source on the basis of the multilevel pixel information. The photosensitive element is exposed to the binary light source with a period corresponding to N-fold in a sub scanning direction resolution of the multilevel pixel information, wherein N is a positive integer, so that the N times exposures corresponds to an exposure for one pixel in the original resolution. The switch on/off statuses of the binary light source are controlled in the N times exposures for each pixel, on the basis of lighting rate information for converting the multilevel scales into a lighting rate in the N times exposures.

摘要翻译： 一种光写入装置，具备：像素信息取得部，取得多像素信息，其中一个像素以多级尺度表示;行像素信息存储部，存储各主扫描线的多级像素信息;发光控制部 通过基于多级像素信息控制二值光源来光学曝光光敏元件。 感光元件以多级像素信息的副扫描方向分辨率对应于N倍的周期曝光到二进制光源，其中N是正整数，使得N次曝光对应于一个像素的曝光 在原来的决议。 基于用于将多级尺转换为N次曝光中的照明率的照明率信息，对于每个像素，在二次曝光的N次曝光中控制二进制光源的开/关状态。

公开(公告)号：US20100239331A1

公开(公告)日：2010-09-23

申请号：US12723908

申请日：2010-03-15

申请人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Tomohiro Ohshima

发明人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Tomohiro Ohshima

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G2215/0132 ,  G03G2215/0161

摘要： A position error correcting method includes forming an image-forming condition determination pattern on an endless transport unit transported in a first direction, the image-forming condition determination pattern including plural unit patterns having different unit-area attached toner amounts and arranged in the first direction; detecting a detection limit pattern having the minimum detectable unit-area attached toner amount from the unit patterns; calculating an image-forming condition of the detection limit pattern; forming a position error correction pattern on the endless transport unit in the first direction in accordance with the image-forming condition; and correcting a position error of a toner image formed on the endless transport unit by plural image forming units, using the position error correction pattern, wherein the position error is corrected with respect to a second direction perpendicular to the first direction.

摘要翻译： 位置误差校正方法包括在沿第一方向传送的循环传送单元上形成图像形成条件确定模式，所述图像形成条件确定模式包括具有不同单位面积的调色剂量并且沿第一方向布置的多个单位图案 ; 从所述单元图案中检测具有最小可检测单位面积的调色剂量的检测限度图案; 计算检测极限图案的图像形成条件; 根据图像形成条件在第一方向上在环形传送单元上形成位置误差校正图案; 以及使用位置误差校正图案，通过多个图像形成单元来校正形成在环形传送单元上的调色剂图像的位置误差，其中相对于垂直于第一方向的第二方向校正位置误差。

公开(公告)号：US08488201B2

公开(公告)日：2013-07-16

申请号：US12846896

申请日：2010-07-30

申请人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Tomohiro Ohshima

发明人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Tomohiro Ohshima

IPC分类号： H04N1/40 ,  G03G15/50

CPC分类号： H04N1/506 ,  H04N1/6022 ,  H04N1/6033

摘要： An image forming apparatus for which a first mode using toners of plural colors including a black toner and a second mode using only the black toner can be set, includes a first printing cumulatively counting part that cumulatively counts a first number of pages for which image forming has been executed by using the toners of plural colors; a first printing determining part that determines whether the first number of pages counted by the first printing cumulatively counting part has exceeded a threshold; and a correction control part that controls not to execute a correcting process for image forming that uses the toners of plural colors but to execute a correcting process for image forming that uses only the black toner, when the second mode has been set in a case where the first printing determining part has determined that the first number of pages has exceeded the threshold.

摘要翻译： 可以设置使用包括黑色调色剂的多种颜色的调色剂和仅使用黑色调色剂的第二模式的第一模式的图像形成装置，该第一模式包括累积计数第一页数的第一打印累积计数部分， 已经通过使用多种颜色的调色剂来执行; 第一打印确定部，其确定由所述第一打印累积计数部计数的所述第一页数是否超过阈值; 以及校正控制部，其控制不执行使用多种颜色的调色剂的图像形成的校正处理，而是执行仅使用黑色调色剂的图像形成的校正处理，当在第二模式被设定为 第一打印确定部件已经确定第一页数已经超过阈值。

公开(公告)号：US08294744B2

公开(公告)日：2012-10-23

申请号：US12862144

申请日：2010-08-24

申请人： Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Takuhei Yokoyama

发明人： Izumi Kinoshita ,  Kunihiro Komai ,  Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Takuhei Yokoyama

IPC分类号： B41J2/385 ,  B41J2/455 ,  B41J2/47 ,  B41J2/45 ,  B41J2/435

CPC分类号： G06K15/1247

摘要： An optical writing device includes: a light source including arrays arranged in a main scanning direction, each array including light-emitting elements arranged in the main scanning direction; a correction-value holding unit to hold, correspondingly with a light-emitting element, a correction value for changing timing to read out pixel data stored in an image storage unit; and a light-source drive unit to drive the light source by reading out the stored pixel data stored, according to the correction value. The correction-value holding unit includes a first area for holding a first correction value corresponding to a first light-emitting element located at an end of an array and a second area for holding a second correction value corresponding to a second light-emitting element other than the first light-emitting element, the first holding area being larger than the second holding area.

摘要翻译： 光写入装置包括：包括沿主扫描方向布置的阵列的光源，每个阵列包括沿主扫描方向布置的发光元件; 校正值保持单元，与发光元件对应地保持用于改变定时的校正值，以读出存储在图像存储单元中的像素数据; 以及光源驱动单元，通过根据校正值读出存储的所存储的像素数据来驱动光源。 校正值保持单元包括用于保持对应于位于阵列末端的第一发光元件的第一校正值的第一区域和用于保持对应于第二发光元件的第二校正值的第二区域的其他 第一保持区域大于第二保持区域。