公开(公告)号：US09141893B2

公开(公告)日：2015-09-22

申请号：US13782248

申请日：2013-03-01

申请人： Akinori Yamaguchi ,  Masayuki Hayashi ,  Hiroaki Ikeda ,  Kunihiro Komai ,  Tatsuya Miyadera ,  Takeshi Shikama ,  Takuhei Yokoyama ,  Yoshinori Shirasaki ,  Motohiro Kawanabe

发明人： Akinori Yamaguchi ,  Masayuki Hayashi ,  Hiroaki Ikeda ,  Kunihiro Komai ,  Tatsuya Miyadera ,  Takeshi Shikama ,  Takuhei Yokoyama ,  Yoshinori Shirasaki ,  Motohiro Kawanabe

IPC分类号： G06F15/00 ,  G06K1/00 ,  H04N1/60 ,  G06K15/02 ,  G03G15/00

CPC分类号： G06K15/1878 ,  G03G15/5058 ,  G03G2215/0141

摘要： In the invention, an inclination amount of sensors is reflected in positional deviation correction patterns, and for correcting formation positions of images of various colors, the positional deviation correction patterns are formed on a conveying belt. The positional deviation correction patterns are detected by the sensors. A control unit calculates positional deviation correction amounts based on detection results of the positional deviation correction patterns. Based on the calculated positional deviation correction amounts, the control unit performs calculation for correcting the positional deviation correction patterns, and cancels the inclination amount reflected in the calculation results to obtain final positional deviation correction amounts. Skew correction is performed based on the final positional deviation correction amounts, and thus, the positional deviations are corrected.

摘要翻译： 在本发明中，传感器的倾斜量反映在位置偏差校正图案中，并且为了校正各种图像的形成位置，在输送带上形成位置偏差校正图案。 位置偏差校正图案由传感器检测。 控制单元基于位置偏差校正图案的检测结果来计算位置偏差校正量。 基于所计算的位置偏差校正量，控制单元进行用于校正位置偏差校正图案的计算，并且取消反映在计算结果中的倾斜量，以获得最终位置偏差校正量。 基于最终位置偏差校正量执行偏斜校正，因此校正位置偏差。

公开(公告)号：US20140078521A1

公开(公告)日：2014-03-20

申请号：US14024003

申请日：2013-09-11

申请人： Masayuki HAYASHI ,  Yoshinori Shirasaki ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Hiroaki Ikeda ,  Akinori Yamaguchi ,  Tomohiro Ohshima

发明人： Masayuki HAYASHI ,  Yoshinori Shirasaki ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Hiroaki Ikeda ,  Akinori Yamaguchi ,  Tomohiro Ohshima

IPC分类号： H04N1/40

CPC分类号： H04N1/40068

摘要： An image forming apparatus comprising: a resolution conversion unit configured to convert the resolution of a pixel provided by input image data; a gradation conversion unit configured to perform matrix conversion onto the pixel; and a writing unit configured to perform a write operation, wherein, in the normal mode, the gradation conversion unit performs matrix conversion onto the pixel with reference to the gradation conversion table for the normal mode, and the writing unit performs the write operation of the pixel in a normal order that is the order image data being input into the image forming apparatus, and in the reverse mode, the gradation conversion unit performs matrix conversion onto the pixel with reference to the gradation conversion table for the reverse mode, and the writing unit performs the write operation of the pixel in a reverse order opposite to the normal order.

摘要翻译： 一种图像形成装置，包括：分辨率转换单元，被配置为转换由输入图像数据提供的像素的分辨率; 灰度转换单元，被配置为对所述像素执行矩阵转换; 以及写入单元，被配置为执行写入操作，其中在所述正常模式中，所述灰度转换单元参照用于所述正常模式的灰度转换表，对所述像素执行矩阵转换，并且所述写入单元执行所述写入操作 以顺序图像数据输入到图像形成装置中的正常顺序的像素，并且在反向模式中，灰度转换单元参照用于反向模式的灰度转换表，对像素执行矩阵转换，并且写入 单元以与正常顺序相反的相反顺序执行像素的写入操作。

公开(公告)号：US20130063536A1

公开(公告)日：2013-03-14

申请号：US13593705

申请日：2012-08-24

申请人： Kunihiro KOMAI ,  Masayuki Hayashi ,  Hiroaki Ikeda ,  Takeshi Shikama ,  Akinori Yamaguchi ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Yoshinori Shirasaki ,  Takuhei Yokoyama

发明人： Kunihiro KOMAI ,  Masayuki Hayashi ,  Hiroaki Ikeda ,  Takeshi Shikama ,  Akinori Yamaguchi ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Yoshinori Shirasaki ,  Takuhei Yokoyama

IPC分类号： B41J2/435

CPC分类号： G03G15/043 ,  B41J2/45 ,  B41J2/47 ,  G03G15/5033

摘要： A light source control apparatus which controls, based on image data input, light emission of a light source which forms an electrostatic latent image on an image bearing body in an electrophotographic image forming apparatus is disclosed, including a pattern generating unit which generates an internal pattern for position aligning and concentration correcting according to the image data; and a mirroring processing unit which performs a process of mirroring the image data and the internal pattern at a later stage of the pattern generating unit.

摘要翻译： 公开了一种基于图像数据输入控制在电子照相图像形成装置中的图像承载体上形成静电潜像的光源的发光的光源控制装置，其包括产生内部图案的图案生成单元 用于根据图像数据进行位置对准和浓度校正; 以及镜像处理单元，其在图案生成单元的稍后阶段执行镜像图像数据和内部图案的处理。

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：US08681390B2

公开(公告)日：2014-03-25

申请号：US13462029

申请日：2012-05-02

申请人： Motoyoshi Takahashi ,  Masayuki Hayashi ,  Hiroaki Ikeda ,  Kunihiro Komai ,  Yoshinori Shirasaki ,  Fuminori Tsuchiya ,  Akinori Yamaguchi ,  Tatsuya Miyadera

发明人： Motoyoshi Takahashi ,  Masayuki Hayashi ,  Hiroaki Ikeda ,  Kunihiro Komai ,  Yoshinori Shirasaki ,  Fuminori Tsuchiya ,  Akinori Yamaguchi ,  Tatsuya Miyadera

IPC分类号： H04N1/40

CPC分类号： H04N1/40 ,  H04N1/32363 ,  H04N1/32448 ,  H04N2201/0082 ,  H04N2201/04796 ,  H04N2201/3297 ,  H04N2201/3298

摘要： In an optical scanner, when an emission control unit varies a period at which image data is output from an output buffer of the emission control unit in order to correct a sub scan magnification of a LED array and a vacant region of an input buffer of the emission control unit ceases to exist, a buffer control unit temporarily stores the image data in a vacant region of a memory of an image correcting unit, and transfers the image data temporarily stored in the memory to the input buffer when the vacant region is generated in the input buffer.

摘要翻译： 在光学扫描器中，当发光控制单元改变从发光控制单元的输出缓冲器输出图像数据的周期，以便校正LED阵列的副扫描放大率和输出缓冲器的空白区域时 排放控制单元不再存在，则缓冲器控制单元将图像数据临时存储在图像校正单元的存储器的空白区域中，并且当空白区域被生成时将临时存储在存储器中的图像数据传送到输入缓冲器 输入缓冲区。

公开(公告)号：US08665299B2

公开(公告)日：2014-03-04

申请号：US13617458

申请日：2012-09-14

申请人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Motoyoshi Takahashi ,  Masayuki Hayashi ,  Kunihiro Komai ,  Fuminori Tsuchiya ,  Akinori Yamaguchi ,  Hiroaki Ikeda

发明人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Motoyoshi Takahashi ,  Masayuki Hayashi ,  Kunihiro Komai ,  Fuminori Tsuchiya ,  Akinori Yamaguchi ,  Hiroaki Ikeda

IPC分类号： B41J2/385 ,  B41J2/45

CPC分类号： H04N1/506 ,  G03G15/043 ,  G06K15/1247 ,  G06K15/1894

摘要： An exposure control apparatus includes: a plurality of line memories; a processing unit that processes image data by successively recording the image data to the plurality of line memories, and successively reading the image data from the plurality of line memories; and an exposing unit that performs, with an exposure cycle, an exposure process according to the processed image data, and that forms a latent image based on the image data onto an image carrier, wherein the image data is transferred with a cycle which is N times as high as the exposure cycle (N is a natural number), and the processing unit reads the image data N times with the exposure cycle.

摘要翻译： 曝光控制装置包括：多个行存储器; 处理单元，通过将图像数据连续地记录到多个行存储器中，并且从多个行存储器连续地读取图像数据来处理图像数据; 以及曝光单元，其以曝光周期执行根据所处理的图像数据的曝光处理，并且基于图像数据形成潜像到图像载体上，其中以N为单位的周期传送图像数据 次数（N为自然数），处理单元以曝光周期读取N次图像数据。

公开(公告)号：US20130070040A1

公开(公告)日：2013-03-21

申请号：US13617458

申请日：2012-09-14

申请人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Motoyoshi Takahashi ,  Masayuki Hayashi ,  Kunihiro Komai ,  Fuminori Tsuchiya ,  Akinori Yamaguchi ,  Hiroaki Ikeda

发明人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Motoyoshi Takahashi ,  Masayuki Hayashi ,  Kunihiro Komai ,  Fuminori Tsuchiya ,  Akinori Yamaguchi ,  Hiroaki Ikeda

IPC分类号： B41J2/435

CPC分类号： H04N1/506 ,  G03G15/043 ,  G06K15/1247 ,  G06K15/1894

摘要： An exposure control apparatus includes: a plurality of line memories; a processing unit that processes image data by successively recording the image data to the plurality of line memories, and successively reading the image data from the plurality of line memories; and an exposing unit that performs, with an exposure cycle, an exposure process according to the processed image data, and that forms a latent image based on the image data onto an image carrier, wherein the image data is transferred with a cycle which is N times as high as the exposure cycle (N is a natural number), and the processing unit reads the image data N times with the exposure cycle.

摘要翻译： 曝光控制装置包括：多个行存储器; 处理单元，通过将图像数据连续地记录到多个行存储器中，并且从多个行存储器连续地读取图像数据来处理图像数据; 以及曝光单元，其以曝光周期执行根据所处理的图像数据的曝光处理，并且基于图像数据形成潜像到图像载体上，其中以N为单位的周期传送图像数据 次数（N为自然数），处理单元以曝光周期读取N次图像数据。

公开(公告)号：US08983330B2

公开(公告)日：2015-03-17

申请号：US13773780

申请日：2013-02-22

申请人： Akinobu Nakamura ,  Yutaka Aso ,  Fuminori Tsuchiya ,  Susumu Miyazaki ,  Keita Yoshikawa ,  Tatsuya Miyadera ,  Motohiro Kawanabe

发明人： Akinobu Nakamura ,  Yutaka Aso ,  Fuminori Tsuchiya ,  Susumu Miyazaki ,  Keita Yoshikawa ,  Tatsuya Miyadera ,  Motohiro Kawanabe

IPC分类号： G03G15/00 ,  H02M7/12 ,  H02M3/335 ,  H02M7/217 ,  H02M1/00

CPC分类号： H02M7/12 ,  H02M3/33561 ,  H02M7/217 ,  H02M2001/0032 ,  Y02B70/16

摘要： Disclosed is a power supply including a first voltage generating unit that generates a first voltage from an external power supply; a second voltage generating unit that generates a first predetermined voltage and supplies the generated first predetermined voltage to the load; a third voltage generating unit that generates the first predetermined voltage and supplies the generated first predetermined voltage to the load; and a controller that causes the first voltage to be greater than or equal to a second voltage during a first mode, and causes the first voltage to be less than the second voltage during a second mode. During the first mode, the power is supplied from the second voltage generating unit and the third voltage generating unit to the load, and during the second mode, the power is supplied from the third voltage generating unit to the load.

摘要翻译： 公开了一种电源，包括从外部电源产生第一电压的第一电压产生单元; 第二电压产生单元，其产生第一预定电压并将产生的第一预定电压提供给负载; 第三电压产生单元，其产生所述第一预定电压并将所产生的第一预定电压提供给所述负载; 以及在第一模式期间使第一电压大于或等于第二电压的控制器，并且在第二模式期间使第一电压小于第二电压。 在第一模式期间，从第二电压产生单元和第三电压产生单元向负载提供电力，并且在第二模式期间，电力从第三电压产生单元提供给负载。

公开(公告)号：US20120262750A1

公开(公告)日：2012-10-18

申请号：US13444018

申请日：2012-04-11

申请人： Izumi KINOSHITA ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Takeshi Shikama ,  Susumu Miyazaki ,  Takuhei Yokoyama

发明人： Izumi KINOSHITA ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Takeshi Shikama ,  Susumu Miyazaki ,  Takuhei Yokoyama

IPC分类号： G06K15/00

CPC分类号： G03G15/5058 ,  B41J2/45 ,  G03G2215/0141 ,  G03G2215/0161 ,  G06K15/1247 ,  G06K15/1868

摘要： An image forming apparatus includes plural image forming units of plural colors, each including a print head including plural LED chips aligned in a main scanning direction; a screen angle selecting unit that selects screen angles for the plural colors respectively based on the amounts of skew of the plural image forming units; an image processing unit that performs image processing on input data to be expressed by pixels of the plural colors such that the pixels of the colors have the corresponding screen angles selected by the screen angle selecting unit; a correction amount determining unit that determines a total amount of skew correction based on the amount of skew detected by the skew detection unit, and determines the amounts of skew correction in the sub-scanning direction for predetermined groups of the pixels, based on the total amount of skew correction, for each of the colors.

摘要翻译： 图像形成装置包括多个颜色的图像形成单元，每个图像形成单元包括在主扫描方向上排列的多个LED芯片的打印头; 屏幕角度选择单元，分别基于多个图像形成单元的偏斜量来选择多种颜色的屏幕角度; 图像处理单元，对由多个颜色的像素表示的输入数据执行图像处理，使得颜色的像素具有由屏幕角度选择单元选择的相应屏幕角度; 校正量确定单元，其基于由所述歪斜检测单元检测到的歪斜量来确定歪斜校正的总量，并且基于总计来确定预定组像素的副扫描方向上的歪斜校正量 每种颜色的偏斜校正量。

公开(公告)号：US08654419B2

公开(公告)日：2014-02-18

申请号：US13415082

申请日：2012-03-08

申请人： Susumu Miyazaki ,  Izumi Kinoshita ,  Motohiro Kawanabe ,  Takeshi Shikama ,  Takuhei Yokoyama ,  Tatsuya Miyadera

发明人： Susumu Miyazaki ,  Izumi Kinoshita ,  Motohiro Kawanabe ,  Takeshi Shikama ,  Takuhei Yokoyama ,  Tatsuya Miyadera

IPC分类号： H04N1/46

CPC分类号： H04N1/3878 ,  H04N1/407 ,  H04N1/409

摘要： An image forming apparatus performs pseudo gradation processing using dithering, and includes an image carrier; a plurality of light-emitting element arrays arranged in a main-scanning direction and including a plurality of light-emitting elements; an image forming unit performing lighting control of the arrays and forming a pattern image on the image carrier; a detecting unit detecting a density of the pattern image; a position detecting unit detecting a position in the main-scanning direction of the detecting unit with respect to the light-emitting element arrays; a determining unit that, based on the detected position, determines whether the detecting unit is positioned at a proper detection position with respect to the pattern image on which noise has no effect; and an operation control unit that, when the detecting unit is positioned at the proper detection position, performs an image density detection operation on the pattern image using the detecting unit.

摘要翻译： 图像形成装置使用抖动进行伪灰度处理，并且包括图像载体; 沿主扫描方向排列并包括多个发光元件的多个发光元件阵列; 图像形成单元，对所述阵列执行点亮控制，并在所述图像载体上形成图案图像; 检测单元，检测图案图像的浓度; 位置检测单元，相对于所述发光元件阵列检测所述检测单元的主扫描方向的位置; 确定单元，其基于所检测的位置，确定所述检测单元是否位于相对于其上没有影响的图案图像的适当检测位置; 以及操作控制单元，当所述检测单元位于适当的检测位置时，使用所述检测单元对所述图案图像执行图像浓度检测操作。