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公开(公告)号：US09857745B2
公开(公告)日：2018-01-02
申请号：US15274366
申请日：2016-09-23
申请人： Natsumi Matsue , Akira Yoshida , Akio Kosuge , Yoichi Sakurai , Yuuichiroh Uematsu , Keiko Matsumoto
发明人： Natsumi Matsue , Akira Yoshida , Akio Kosuge , Yoichi Sakurai , Yuuichiroh Uematsu , Keiko Matsumoto
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G15/5058
摘要： An image forming apparatus includes a rotatable image bearer, a toner image forming device, an image reader, and a control unit. The toner image forming device forms a test toner image on the image bearer. The image reader reads the test toner image and a predetermined reference member. The control unit calculates an amount of toner contained in the test toner image based on image data from the test toner image. Based on image data from the reference member, the control unit selects a position of a pixel to be used for calculation of the amount of toner contained in the test toner image from pixels included in the image data from the reference member, to calculate the amount of toner contained in the test toner image from data of a pixel located at the position thus selected among pixels included in the image data from the test toner image.
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公开(公告)号：US09651910B2
公开(公告)日：2017-05-16
申请号：US15190685
申请日：2016-06-23
申请人： Akio Kosuge , Natsumi Matsue , Keiko Matsumoto , Akira Yoshida , Yoichi Sakurai , Yuuichiroh Uematsu , Kohta Fujimori , Kayoko Tanaka
发明人： Akio Kosuge , Natsumi Matsue , Keiko Matsumoto , Akira Yoshida , Yoichi Sakurai , Yuuichiroh Uematsu , Kohta Fujimori , Kayoko Tanaka
CPC分类号： G03G15/556 , G03G15/01 , G03G15/5058
摘要： An image forming apparatus includes an image bearer, an image forming device to form a toner image on the image bearer, a transfer device to transfer the toner image to a recording medium, a line sensor as an image density sensor to detect image density of the toner image, and a controller operatively connected to the image density sensor. The image density sensor is disposed so as to be shorter in a rotational direction of the image bearer than in a width direction of the image bearer perpendicular to the rotational direction of the image bearer. The controller forms a shading pattern image including a plurality of patches on the image bearer, and detects image density of the plurality of patches, so as to control image density. The shading pattern image is shorter in the rotational direction of the image bearer than in the width direction of the image bearer.
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公开(公告)号：US20170248889A1
公开(公告)日：2017-08-31
申请号：US15436598
申请日：2017-02-17
IPC分类号： G03G15/00
CPC分类号： G03G15/5062 , G03G15/5058 , G03G2215/00042 , G03G2215/00063
摘要： An image density detector for detecting image density of an image borne by an image bearer includes a reference board, a light emitter, a light receiver, an image density calculator, and an image density detecting condition corrector. The reference board has a spectral reflectance distribution closer to a spectral reflectance distribution of the image forming material than a spectral reflectance distribution of white. The light emitter emits light to the reference board and the image borne by the image bearer. The light receiver receives the light reflected from the image and the reference board. The image density calculator calculates the image density of the image based on an output of the light receiver receiving the light reflected from the image. The image density detecting condition corrector corrects an image density detecting condition based on an output of the light receiver receiving the light reflected from the reference board.
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公开(公告)号：US20180150010A1
公开(公告)日：2018-05-31
申请号：US15793016
申请日：2017-10-25
申请人： Keita SONE , Akira Yoshida , Natsumi Matsue , Kazuaki Kamihara , Yuuichiroh Uematsu , Kohei Matsumoto , Taku Kumiya
发明人： Keita SONE , Akira Yoshida , Natsumi Matsue , Kazuaki Kamihara , Yuuichiroh Uematsu , Kohei Matsumoto , Taku Kumiya
CPC分类号： G03G15/5041 , G03G9/0827 , G03G15/1655 , G03G15/5058 , G03G15/55 , G03G2215/0164
摘要： An image forming apparatus includes an image forming device, an image density detector, and a processor. The processor controls the image forming device to form a first test toner image, and controls the image density detector to detect an image density at the plurality of positions of the first test toner image. The processor adjusts an image forming condition so that the image density detected at each of the plurality of positions becomes a target image density, controls the image forming device to form a second test toner image based on the adjusted image forming condition, controls the image density detector to detect an image density at the plurality of positions of the second test toner image, determines whether a streak exists in the second test toner image based on the detected image densities, and executes a countermeasure to prevent an occurrence of the streak.
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5.发明授权Image forming apparatus having an optical sensor for converting a toner adhesion amount and image forming method 有权具有用于转印调色剂附着量的光学传感器和图像形成方法的图像形成装置公开(公告)号：US09565319B2
公开(公告)日：2017-02-07
申请号：US14879177
申请日：2015-10-09
CPC分类号： H04N1/00023 , G03G15/0121 , G03G15/5058 , H04N1/00037 , H04N1/60 , H04N1/6044 , H04N2201/0094
摘要： An image forming apparatus includes an image bearer to bear a black toner pattern formed with a black toner image under an increased exposure amount and an increased developing bias. A first optical sensor detects an amount of reflection light reflected by the black toner pattern on the image bearer. The first optical sensor includes a light-emitting element to emit light toward the black toner pattern on the image bearer and a light-receiving element to receive the reflection light reflected by the black toner pattern on the image bearer. A toner adhesion amount converter converts the amount of the reflection light detected by the first optical sensor into a toner adhesion amount of toner adhered to the image bearer and adjusts an image density according to the toner adhesion amount.
摘要翻译： 图像形成装置包括承载黑色调色剂图案的图像承载件，所述黑色调色剂图案在增加的曝光量和增加的显影偏压下由黑色调色剂图像形成。 第一光学传感器检测由图像载体上的黑色调色剂图案反射的反射光量。 第一光学传感器包括朝向图像承载体上的黑色调色剂图案发光的发光元件和用于接收由图像载体上的黑色调色剂图案反射的反射光的光接收元件。 调色剂粘附量转换器将由第一光学传感器检测到的反射光的量转换成粘附到图像承载体的调色剂附着量，并根据调色剂附着量来调整图像浓度。
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6.发明授权Image forming apparatus that switches transfer bias based on detected environment condition 有权基于检测到的环境条件切换传输偏压的图像形成装置公开(公告)号：US09535376B2
公开(公告)日：2017-01-03
申请号：US15044596
申请日：2016-02-16
申请人： Keita Sone , Shinichi Akatsu , Tomohide Takenaka , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu
发明人： Keita Sone , Shinichi Akatsu , Tomohide Takenaka , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675 , G03G21/20
摘要： An image forming apparatus includes an image bearing belt of a multi-layer structure, a toner image forming device, a nip forming device, a transfer power source, an environment-condition detector, and a controller. The toner image forming device forms a toner image on a surface of the image bearing belt. The transfer power source outputs a transfer bias including a superimposed voltage, in which a direct current voltage is superimposed on an alternating current voltage to transfer the toner image from the image bearing belt onto a recording medium at a transfer nip. The environment-condition detector detects an environment condition. The controller controls the transfer bias output from the transfer power source to perform a bias switching process to switch the transfer bias between a transfer bias including the superimposed voltage and a transfer bias including a direct current voltage based on a detected result of the environment-condition detector.
摘要翻译： 图像形成装置包括多层结构的图像承载带，调色剂图像形成装置，压区形成装置，转印电源，环境条件检测器和控制器。 调色剂图像形成装置在图像承载带的表面上形成调色剂图像。 传输电源输出包括重叠电压的转印偏压，其中直流电压叠加在交流电压上，以将调色剂图像从图像承载带转印到转印压区上的记录介质上。 环境条件检测器检测环境条件。 控制器控制来自传送电源的传输偏压输出，以执行偏置切换处理，以根据环境条件的检测结果，在包括叠加电压的转印偏压和包括直流电压的转印偏压之间切换转印偏压 探测器。
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公开(公告)号：US20160246220A1
公开(公告)日：2016-08-25
申请号：US15044596
申请日：2016-02-16
申请人： Keita SONE , Shinichi Akatsu , Tomohide Takenaka , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu
发明人： Keita SONE , Shinichi Akatsu , Tomohide Takenaka , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu
IPC分类号： G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675 , G03G21/20
摘要： An image forming apparatus includes an image bearing belt of a multi-layer structure, a toner image forming device, a nip forming device a transfer power source, an environment-condition detector, and a controller. The toner image forming device forms a toner image on a surface of the image bearing belt. The transfer power source outputs a transfer bias including a superimposed voltage, in which a direct current voltage is superimposed on an alternating current voltage to transfer the toner image from the image bearing belt onto a recording medium at a transfer nip. The environment-condition detector detects an environment condition. The controller controls the transfer bias output from the transfer power source to perform a bias switching process to switch the transfer bias between a transfer bias including the superimposed voltage and a transfer bias including a direct current voltage based on a detected result of the environment-condition detector.
摘要翻译： 图像形成装置包括多层结构的图像承载带，调色剂图像形成装置，转印电源的压区形成装置，环境状态检测器和控制器。 调色剂图像形成装置在图像承载带的表面上形成调色剂图像。 传输电源输出包括重叠电压的转印偏压，其中直流电压叠加在交流电压上，以将调色剂图像从图像承载带转印到转印压区上的记录介质上。 环境条件检测器检测环境条件。 控制器控制来自传送电源的传输偏压输出，以执行偏置切换处理，以基于环境条件的检测结果，在包括叠加电压的转印偏压和包括直流电压的转印偏压之间切换转印偏压 探测器。
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公开(公告)号：US20150362868A1
公开(公告)日：2015-12-17
申请号：US14740175
申请日：2015-06-15
申请人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
发明人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G15/5054 , G03G15/5062
摘要： An image forming apparatus includes an endless belt-shaped image bearer that is rotatably supported and entrained around rollers; a transfer member positioned to contact an outer surface of the image bearer; a transfer device to transfer a toner image conveyed while being carried on the outer surface of the image bearer onto a transfer medium conveyed between the image bearer and the transfer member; a toner image sensor to detect the toner image transferred onto the transfer medium; and a conveyance speed controller to fine-tune a conveyance speed of the transfer medium. Based on fine-tuning data of the conveyance speed controller, a detection result of the toner image sensor is corrected and image forming conditions are corrected based on the corrected detection result.
摘要翻译： 图像形成装置包括可旋转地支撑并夹带在辊周围的环形带状图像承载件; 定位成接触所述图像承载体的外表面的转印构件; 传送装置，用于将在承载在图像载体的外表面上的传送的调色剂图像转印到在图像载体和转印部件之间传送的转印介质上; 调色剂图像传感器，用于检测转印到转印介质上的调色剂图像; 以及微调转印介质的输送速度的输送速度控制器。 基于输送速度控制器的微调数据，校正调色剂图像传感器的检测结果，并且基于校正的检测结果校正图像形成条件。
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公开(公告)号：US09436135B2
公开(公告)日：2016-09-06
申请号：US14740175
申请日：2015-06-15
申请人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
发明人： Keita Sone , Nobutaka Takeuchi , Shinichi Akatsu , Tomohide Takenaka , Kohta Fujimori , Tetsuya Muto , Akira Yoshida , Keita Gotoh , Yuuichiroh Uematsu , Kazufumi Kimura
IPC分类号： G03G15/16
CPC分类号： G03G15/1615 , G03G15/5054 , G03G15/5062
摘要： An image forming apparatus includes an endless belt-shaped image bearer that is rotatably supported and entrained around rollers; a transfer member positioned to contact an outer surface of the image bearer; a transfer device to transfer a toner image conveyed while being carried on the outer surface of the image bearer onto a transfer medium conveyed between the image bearer and the transfer member; a toner image sensor to detect the toner image transferred onto the transfer medium; and a conveyance speed controller to fine-tune a conveyance speed of the transfer medium. Based on fine-tuning data of the conveyance speed controller, a detection result of the toner image sensor is corrected and image forming conditions are corrected based on the corrected detection result.
摘要翻译： 图像形成装置包括可旋转地支撑并夹带在辊周围的环形带状图像承载件; 定位成接触所述图像承载体的外表面的转印构件; 传送装置，用于将在承载在图像载体的外表面上的传送的调色剂图像转印到在图像载体和转印部件之间传送的转印介质上; 调色剂图像传感器，用于检测转印到转印介质上的调色剂图像; 以及微调转印介质的输送速度的输送速度控制器。 基于输送速度控制器的微调数据，校正调色剂图像传感器的检测结果，并且基于校正的检测结果校正图像形成条件。
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公开(公告)号：US11260667B2
公开(公告)日：2022-03-01
申请号：US16869914
申请日：2020-05-08
申请人： Yuuichiroh Uematsu , Ryohki Wakasa , Atsushi Mori
发明人： Yuuichiroh Uematsu , Ryohki Wakasa , Atsushi Mori
摘要： A liquid circulation device includes a circulation passage, a liquid feeding device, a pressure sensor, and control circuitry. Through the circulation passage, liquid circulates to be supplied to and collected from a circulatory liquid discharge head. The liquid feeding device is configured to circulate the liquid through the circulation passage. The pressure sensor is configured to detect a pressure of the circulation passage. The control circuitry configured to acquire a characteristic indicating a relationship among a drive amount of the liquid feeding device, discharge information of the liquid discharged from the liquid discharge head, and a pressure detection value of the circulation passage; and change, based on the characteristic acquired, at least one of a control parameter and a calculation expression used to control the liquid feeding device.
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