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公开(公告)号：US11667131B2
公开(公告)日：2023-06-06
申请号：US17570497
申请日：2022-01-07
申请人： Yuuichiroh Uematsu , Ryohki Wakasa , Atsushi Mori
发明人： Yuuichiroh Uematsu , Ryohki Wakasa , Atsushi Mori
CPC分类号： B41J2/18 , B41J2/14274 , B41J2/14153 , B41J2/17503 , B41J2002/14354 , B41J2202/12 , B41J2202/20
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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公开(公告)号：US20180136593A1
公开(公告)日：2018-05-17
申请号：US15713838
申请日：2017-09-25
CPC分类号： G03G15/1615 , G03G13/14 , G03G15/011 , G03G15/065 , G03G15/5008 , G03G15/5025 , G03G15/5041 , G03G15/5058 , G03G21/1647 , G03G21/1676 , G03G21/203 , G03G2215/00042 , G03G2221/1657
摘要： An image forming apparatus includes an image forming unit and a controller. The image forming unit includes a latent image bearer, a charger to charge the latent image bearer, an exposure device to expose a latent image on the surface of the latent image bearer, and a developing device to develop the latent image with a developer. The controller executes an image forming process, a first fluctuation control that cyclically changes a developing bias supplied to the developing device based on predetermined first pattern data, and a second fluctuation control that cyclically changes a charging bias supplied to the charger based on predetermined second pattern data, in parallel. The controller executes a determination process to determine whether the controller executes the first fluctuation control. When the controller determines not to execute the first fluctuation control, the controller determines not to execute the second fluctuation control, too.
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3.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：US09141059B2
公开(公告)日：2015-09-22
申请号：US14203847
申请日：2014-03-11
申请人： Tetsuya Muto , Shuji Hirai , Shinichi Akatsu , Shingo Suzuki , Satoshi Kaneko , Keita Gotoh , Yuuichiroh Uematsu
发明人： Tetsuya Muto , Shuji Hirai , Shinichi Akatsu , Shingo Suzuki , Satoshi Kaneko , Keita Gotoh , Yuuichiroh Uematsu
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G2215/0116 , G03G2215/0129 , G03G2215/0141 , G03G2215/0161 , G03G2215/0164
摘要： An image forming apparatus includes an image carrier, a rotation-position detector, a development device, a transfer unit, a density sensor, and an image-forming-condition determination unit. The density sensor senses a density of a toner image on a transfer body. The image-forming-condition determination unit forms an image pattern, acquires periodical density variation information sensed by the density sensor and detection information of the rotation-position detector, and determines an image forming condition based on the periodical density variation information and the detection information acquired. The image carrier and the transfer body are different in linear velocity in an image formation in which the toner image is transferred to a recording medium. The image carrier and the transfer body are controlled to be equal in linear velocity in an information acquisition in which the image-forming-condition determination unit acquires the periodical density variation information and the detection information.
摘要翻译： 图像形成装置包括图像载体，旋转位置检测器，显影装置，转印单元，密度传感器和图像形成条件确定单元。 密度传感器感测转印体上的调色剂图像的浓度。 图像形成条件确定单元形成图像图案，获取由密度传感器感测的周期密度变化信息和旋转位置检测器的检测信息，并且基于周期密度变化信息和检测信息确定图像形成条件 获得了 在将调色剂图像转印到记录介质的图像形成中，图像载体和转印体的线速度不同。 在图像形成条件确定单元获取周期密度变化信息和检测信息的信息获取中，图像载体和转印体被控制为线性速度相等。
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7.发明授权Image forming apparatus capable of effectively preventing image density fluctuation 有权能够有效地防止图像浓度波动的图像形成装置公开(公告)号：US09128402B2
公开(公告)日：2015-09-08
申请号：US14105477
申请日：2013-12-13
申请人： Yuuichiroh Uematsu , Shinichi Akatsu , Shuji Hirai , Shingo Suzuki , Tetsuya Muto , Satoshi Kaneko , Keita Goto
发明人： Yuuichiroh Uematsu , Shinichi Akatsu , Shuji Hirai , Shingo Suzuki , Tetsuya Muto , Satoshi Kaneko , Keita Goto
CPC分类号： G03G15/0189 , G03G15/5058 , G03G2215/0158
摘要： An image forming apparatus includes an image forming unit including rotary members to form a toner image corresponding to image data, in which the image forming unit forms a toner pattern for detecting image density fluctuation; and an image forming condition determination controller to perform image forming processing to ultimately transfer the toner image onto a recording medium. In the image forming apparatus, the controller measures a periodic image density fluctuation occurring in a rotation cycle of the rotary members based on a detection result of a toner pattern; performs image forming condition determination processing to determine an image forming condition to reduce the image density fluctuation based on measured image density fluctuation data; and determines whether or not the image density fluctuation data measured multiple times satisfies a predetermined control termination condition.
摘要翻译： 图像形成装置包括图像形成单元，该图像形成单元包括旋转构件，以形成与图像数据相对应的调色剂图像，其中图像形成单元形成用于检测图像浓度波动的调色剂图案; 以及图像形成条件确定控制器，以执行图像形成处理，以最终将调色剂图像转印到记录介质上。 在图像形成装置中，控制器基于调色剂图案的检测结果来测量在旋转构件的旋转周期中发生的周期性图像浓度波动; 执行图像形成条件确定处理，以基于测量的图像浓度波动数据确定图像形成条件以减小图像浓度波动; 并且确定多次测量的图像浓度波动数据是否满足预定的控制终止条件。
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公开(公告)号：US20220126594A1
公开(公告)日：2022-04-28
申请号：US17570497
申请日：2022-01-07
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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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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公开(公告)号：US20190196355A1
公开(公告)日：2019-06-27
申请号：US16227980
申请日：2018-12-20
IPC分类号： G03G15/043 , G03G15/04
CPC分类号： G03G15/043 , G03G15/04072 , G03G15/5058 , G03G2215/00033 , G03G2215/00037
摘要： An image forming apparatus includes a latent image bearer; a writing device configured to write a latent image onto the latent image bearer; a detection device configured to detect, at a plurality of positions, a density of a toner image obtained through development of the latent image; and a controller configured to correct a writing intensity of the writing device to correct an uneven density based on detection values of the detection device. The controller determines whether each of the detection values is pass or fail. In response to a determination that a detection value is fail, the controller corrects the wiring intensity based on another detection value determined to be pass at a position different from a position at which the detection value is determined to be fail, instead of correcting the writing intensity based on the detection value determined to be fail.
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