公开(公告)号：US08957933B2

公开(公告)日：2015-02-17

申请号：US13960165

申请日：2013-08-06

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

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

IPC分类号： B41J2/435 ,  B41J2/47 ,  B41J2/385 ,  G03G15/00

CPC分类号： G03G15/80 ,  G03G15/5004

摘要： An optical writing device forming an electrical latent image on a photoreceptor includes an optical writing unit configured to apply light to the photoreceptor, a power supply unit configured to supply power to the optical writing unit, a power supply status detector configured to detect a power supply status of the power supplied from the power supply unit to the optical writing unit, and output power supply information or power cutoff information, a power cutoff information retaining unit configured to retain the power cutoff information when the power cutoff information is output from the power supply status detector, and a power sensor configured to sense a power supply status of the power supplied by the power supply unit based on the power cutoff information retained by the power cutoff information retaining unit.

摘要翻译： 在感光体上形成电潜象的光写入装置包括配置成向感光体施加光的光写入单元，配置为向光写入单元供电的电源单元，电源状态检测器，被配置为检测电源 从电源单元向光学写入单元提供的电力的状态以及输出电源信息或电力切断信息;电力切断信息保持单元，被配置为当从电源输出电力切断信息时保持电力切断信息 状态检测器和被配置为基于由电力切断信息保持单元保持的电力切断信息来感测由电源单元提供的电力的电源状态的功率传感器。

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：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：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。

公开(公告)号：US08543020B2

公开(公告)日：2013-09-24

申请号：US12723813

申请日：2010-03-15

申请人： Tatsuya Miyadera ,  Tomohiro Ohshima

发明人： Tatsuya Miyadera ,  Tomohiro Ohshima

IPC分类号： G03G15/00

CPC分类号： G03G15/161 ,  G03G15/0194 ,  G03G15/1605 ,  G03G2215/0161

摘要： An image forming apparatus includes a transport member, image forming units (used as pattern forming unit), a pattern detector, and an image misalignment detector. The image forming units form correction-use patterns for each color on the transport member. The pattern detector directs a light beam onto the transport member having the correction-use patterns and detect reflected light reflecting from the transport member. The image misalignment detector detects image misalignment of the correction-use patterns. The pattern forming unit forms a reference color pattern and a first color pattern. The pattern detector uses an irradiation light having a first wavelength matched to a spectral sensitivity peak of the first color pattern to detect an intensity of reflected light reflected from the transport member. The image misalignment detector computes an image misalignment value between the reference and first color patterns based on the intensity of reflected light reflected from the transport member.

摘要翻译： 图像形成装置包括传送构件，图像形成单元（用作图案形成单元），图案检测器和图像未对准检测器。 图像形成单元对运输构件上的每种颜色形成校正用图案。 图案检测器将光束引导到具有校正用图案的传送构件上，并检测从传送构件反射的反射光。 图像未对准检测器检测校正用图案的图像未对准。 图案形成单元形成参考颜色图案和第一颜色图案。 图案检测器使用具有与第一颜色图案的光谱灵敏度峰值匹配的第一波长的照射光来检测从传送构件反射的反射光的强度。 图像未对准检测器基于从传送构件反射的反射光的强度来计算参考和第一颜色图案之间的图像未对准值。

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：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：US20100232817A1

公开(公告)日：2010-09-16

申请号：US12723813

申请日：2010-03-15

申请人： Tatsuya MIYADERA ,  Tomohiro Ohshima

发明人： Tatsuya MIYADERA ,  Tomohiro Ohshima

IPC分类号： G03G15/01

CPC分类号： G03G15/161 ,  G03G15/0194 ,  G03G15/1605 ,  G03G2215/0161

摘要： An image forming apparatus includes a transport member, image forming units (used as pattern forming unit), a pattern detector, and an image misalignment detector. The image forming units form correction-use patterns for each color on the transport member. The pattern detector directs a light beam onto the transport member having the correction-use patterns and detect reflected light reflecting from the transport member. The image misalignment detector detects image misalignment of the correction-use patterns. The pattern forming unit forms a reference color pattern and a first color pattern. The pattern detector uses an irradiation light having a first wavelength matched to a spectral sensitivity peak of the first color pattern to detect an intensity of reflected light reflected from the transport member. The image misalignment detector computes an image misalignment value between the reference and first color patterns based on the intensity of reflected light reflected from the transport member.

摘要翻译： 图像形成装置包括传送构件，图像形成单元（用作图案形成单元），图案检测器和图像未对准检测器。 图像形成单元对运输构件上的每种颜色形成校正用图案。 图案检测器将光束引导到具有校正用图案的传送构件上，并检测从传送构件反射的反射光。 图像未对准检测器检测校正用图案的图像未对准。 图案形成单元形成参考颜色图案和第一颜色图案。 图案检测器使用具有与第一颜色图案的光谱灵敏度峰值匹配的第一波长的照射光来检测从传送构件反射的反射光的强度。 图像未对准检测器基于从传送构件反射的反射光的强度来计算参考和第一颜色图案之间的图像未对准值。

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：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。