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：US09516192B2

公开(公告)日：2016-12-06

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：US09036198B2

公开(公告)日：2015-05-19

申请号：US14086266

申请日：2013-11-21

申请人： Tatsuya Miyadera ,  Masayuki Hayashi ,  Motohiro Kawanabe ,  Yoshinori Shirasaki ,  Masatoshi Murakami

发明人： Tatsuya Miyadera ,  Masayuki Hayashi ,  Motohiro Kawanabe ,  Yoshinori Shirasaki ,  Masatoshi Murakami

IPC分类号： G06K15/00 ,  H04N1/00 ,  H04N1/028 ,  G03G15/01 ,  G03G15/00

CPC分类号： H04N1/00246 ,  G03G15/0189 ,  G03G15/5058 ,  G03G2215/0161 ,  H04N1/02815

摘要： An optical-writing control device calculates correction values for use in correcting a transfer position at which developing-agent images are to be transferred onto a sheet, and overlaying positions at which the developing-agent images are to be overlaid, based on a detection signal output from a sensor upon detection of a correction pattern for use in correcting the transfer position and a correction pattern for use in correcting the overlaying positions. A timing of detecting the pattern for use in correcting the overlaying positions is determined based on a correction value calculated based on the detection signal output upon detection of the pattern for use in correcting the transfer position. The pattern for use in correcting the transfer position is caused to have a width, in the main-scanning direction, that is wider than the width in the main-scanning direction of the pattern for use in correcting the overlaying positions.

摘要翻译： 光写入控制装置基于检测信号计算用于校正显影剂图像要转印到片材上的转印位置和重叠显影剂图像的重叠位置的校正值 在检测到用于校正转印位置的校正图案时从传感器输出的校正图案和用于校正重叠位置的校正图案。 基于在检测用于校正转印位置的图案时基于输出的检测信号计算的校正值来确定检测用于校正重叠位置的图案的定时。 使得用于校正转印位置的图案在主扫描方向上具有比用于校正重叠位置的图案的主扫描方向上的宽度宽的宽度。

公开(公告)号：US08848238B2

公开(公告)日：2014-09-30

申请号：US13919261

申请日：2013-06-17

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

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

IPC分类号： G06F15/00 ,  G03G13/01 ,  G03G15/00 ,  G03G13/04 ,  H04N1/40 ,  G03G15/01

CPC分类号： G03G13/04 ,  G03G13/01 ,  G03G15/011 ,  G03G15/5058 ,  G03G2215/0161

摘要： An optical writing control device includes: a light emission control unit which controls light emission of multiple light sources for respective different colors and exposes multiple image carriers; and a correction amount calculating unit which calculates a correction amount for each of the different colors on the basis of a difference between a central value of a distribution range of positional deviation amounts in a sub-scanning direction for the respective different colors and the positional deviation amount for a corresponding color. The light emission control unit delays light emitting timing of a light source, which is to be delayed, by delaying reading timing of pixel information stored in a storage medium, and delays timing at which the pixel information about colors other than a color, light emitting timing of a light source for which is to be advanced, starts to be obtained from an image forming apparatus main body.

摘要翻译： 光学写入控制装置包括：发光控制单元，其控制用于各种不同颜色的多个光源的发光并且暴露多个图像载体; 以及校正量计算单元，其基于各个不同颜色的副扫描方向上的位置偏差量的分布范围的中心值和位置偏差之间的差异来计算每种不同颜色的校正量 相应颜色的数量。 发光控制单元通过延迟存储在存储介质中的像素信息的读取定时来延迟待延迟的光源的发光定时，并延迟关于颜色以外的像素信息的定时，发光 开始从图像形成装置主体获得要提前的光源的定时。

公开(公告)号：US20130004194A1

公开(公告)日：2013-01-03

申请号：US13583797

申请日：2011-03-10

申请人： Yoshinori Shirasaki ,  Tatsuya Miyadera ,  Tomohiro Ohshima

发明人： Yoshinori Shirasaki ,  Tatsuya Miyadera ,  Tomohiro Ohshima

IPC分类号： G03G15/00

CPC分类号： G03G15/161 ,  G03G2215/0132

摘要： An image forming apparatus includes an image forming unit that forms developer images in different colors on image carriers; a first transfer unit that transfers the developer images onto an endless conveying body; a second transfer unit that transfers the developer images onto a recording medium; pattern detecting units that irradiate a given developer pattern formed on the endless conveying body with a light beam and detect reflected light from the pattern; a cleaning unit that cleans developer images adhered to the second transfer unit; and a control unit that controls each of the units. The pattern detecting units are arranged between the second transfer unit and the image carrier on the most upstream side from the second transfer unit in a rotation direction of the endless conveying body. The control unit changes a cleaning time of the cleaning unit based on a detection result of the pattern detecting units.

摘要翻译： 图像形成装置包括图像形成单元，其在图像载体上形成不同颜色的显影剂图像; 将显影剂图像转印到环形输送体上的第一转印单元; 将显影剂图像转印到记录介质上的第二转印单元; 图案检测单元，用光束照射形成在环形输送体上的给定显影剂图案，并检测来自图案的反射光; 清洁单元，其清洁粘附到第二转印单元的显影剂图像; 以及控制单元，其控制每个单元。 图案检测单元沿着环形输送体的旋转方向从第二转印单元在最上游侧布置在第二转印单元和图像载体之间。 控制单元基于图案检测单元的检测结果来改变清洁单元的清洁时间。

公开(公告)号：US09208119B2

公开(公告)日：2015-12-08

申请号：US14074007

申请日：2013-11-07

申请人： Motohiro Kawanabe ,  Tatsuya Miyadera ,  Masayuki Hayashi ,  Yoshinori Shirasaki ,  Masatoshi Murakami

发明人： Motohiro Kawanabe ,  Tatsuya Miyadera ,  Masayuki Hayashi ,  Yoshinori Shirasaki ,  Masatoshi Murakami

IPC分类号： G06F3/12 ,  G06F13/40 ,  G06F13/42 ,  H04N1/00

CPC分类号： G06F13/4068 ,  G06F13/4204

摘要： A data transmitting device is provided. The data transmitting device includes plural bundles of signal lines, each of which includes flatly arranged plural signal lines and which are overlaid in such a manner that surfaces of the bundles of signal lines are contacted with each other while the signal lines extend in a same direction, wherein signal transmission and reception are performed through the signal lines; a transmission timing adjuster to adjust signal transmission timing for each of the plural bundles of signal lines; and a transmission timing controller to perform time division control such that the transmission timing adjuster adjusts the signal transmission timing under the time division control for each of the plural bundles of signal lines.

摘要翻译： 提供数据发送装置。 数据发送装置包括多条信号线，每条信号线包括平面排列的多个信号线，并且以这样的方式叠加信号线的表面彼此接触，同时信号线沿相同方向延伸 其中通过信号线执行信号发送和接收; 发送定时调整器，用于调整所述多个信号线束中的每一个的信号发送定时; 以及发送定时控制器，用于执行时分控制，使得发送定时调整器针对多条信号线中的每一束在时分控制下调整信号发送定时。

公开(公告)号：US08744293B2

公开(公告)日：2014-06-03

申请号：US13064887

申请日：2011-04-25

申请人： Yoshinori Shirasaki ,  Tatsuya Miyadera ,  Tomohiro Ohshima

发明人： Yoshinori Shirasaki ,  Tatsuya Miyadera ,  Tomohiro Ohshima

IPC分类号： G03G15/043

CPC分类号： G03G15/5029 ,  G03G15/043

摘要： An image forming apparatus includes: a photosensitive element; a writing light source; a conveying unit; a light-emitting unit; a detection unit; a writing control unit; and an adjustment unit. The detection unit detects reflected light from a recording medium. The writing control unit controls the writing light source based on operational timing when a signal output from the detection unit turns to a fixed threshold. The adjustment unit acquires information of a gloss level of the recording medium, and adjusts light emission intensity of the light-emitting unit according to the acquired information of the gloss level in such a manner that a signal output from the detection unit when the light-emitting unit irradiates a plain region of the recording medium approximates a certain reference value.

摘要翻译： 一种图像形成装置包括：感光元件; 书写光源; 输送单元; 发光单元; 检测单元; 一个写入控制单元; 和调整单元。 检测单元检测来自记录介质的反射光。 当从检测单元输出的信号变为固定阈值时，写入控制单元基于操作定时来控制写入光源。 调整单元获取记录介质的光泽度的信息，并且根据所获取的光泽度的信息调节发光单元的发光强度，使得当发光单元输出的信号从检测单元输出时， 发射单元照射记录介质的平坦区域近似一定的参考值。

公开(公告)号：US20140146371A1

公开(公告)日：2014-05-29

申请号：US14043258

申请日：2013-10-01

申请人： Masayuki HAYASHI ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Yoshinori Shirasaki ,  Masatoshi Murakami

发明人： Masayuki HAYASHI ,  Tatsuya Miyadera ,  Motohiro Kawanabe ,  Yoshinori Shirasaki ,  Masatoshi Murakami

IPC分类号： H04N1/40

CPC分类号： H04N1/506

摘要： Disclosed is an image forming apparatus including, at least, an image data storage unit that stores image data; an inclination amount detection unit that detects a first inclination amount of a portion of the image data spanning from one end to the other end relative to a main scanning direction; an inclination amount storage unit that stores, when a gradient of the image data changes at a point in the main scanning direction, a second inclination amount of a portion of the image data spanning from the one end to the point or from the other end to the point; a correction amount calculation unit that calculates correction amounts associated with the main scanning direction by switching, at the point, whether the first inclination amount is increased or decreased by the second inclination amount; and an image correction unit that corrects an image based on the correction amounts.

摘要翻译： 公开了一种图像形成装置，至少包括存储图像数据的图像数据存储单元; 倾斜量检测单元，其相对于主扫描方向检测从一端到另一端跨越的图像数据的一部分的第一倾斜量; 倾斜量存储单元，当图像数据的梯度在主扫描方向上的点变化时，存储从一端到点或从另一端到另一端的图像数据的一部分的第二倾斜量， 点; 校正量计算单元，通过在第一倾斜量是否将第一倾斜量增加或减少第二倾斜量的情况下，来计算与主扫描方向相关联的校正量; 以及图像校正单元，其基于校正量来校正图像。

公开(公告)号：US08638481B2

公开(公告)日：2014-01-28

申请号：US13044863

申请日：2011-03-10

申请人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Tomohiro Ohshima

发明人： Tatsuya Miyadera ,  Yoshinori Shirasaki ,  Tomohiro Ohshima

IPC分类号： G03F3/08

CPC分类号： G03G15/0131 ,  G03G15/5058 ,  G03G2215/0161

摘要： An optical writing control apparatus controls a light source to draw a correction pattern for correcting a parameter value of an image forming mechanism, detects the correction pattern transferred onto a conveyance member from a photosensitive member based on an output signal of a sensor, and corrects the parameter value based on the detected correction pattern; stores chromatic color progress information indicating a progress for a chromatic color mechanism corresponding to a chromatic color image occurring from when the correction operation was carried out and achromatic color progress information indicating a progress for an achromatic color mechanism corresponding to an achromatic color image occurring from when the correction operation was carried out; and stores a necessary threshold to determine that the correction operation is necessary and an unnecessary threshold to determine that the correction operation is unnecessary for the chromatic color progress information and the achromatic color progress information.

摘要翻译： 光学写入控制装置控制光源绘制用于校正图像形成机构的参数值的校正图案，基于传感器的输出信号，从感光构件检测转印到传送构件上的校正图案，并校正 基于检测到的校正图案的参数值; 存储指示与执行校正操作时发生的彩色图像相对应的彩色机构的进度的彩色进展信息和表示与从当前发生的无彩色图像相对应的无彩色机构的进展的无彩色进度信息 进行了修正操作; 并且存储必要的阈值以确定校正操作是必需的，并且存储不需要的阈值以确定彩色进行信息和无彩色进行信息不需要校正操作。