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1.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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2.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：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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公开(公告)号：US09152896B2
公开(公告)日：2015-10-06
申请号：US14202563
申请日：2014-03-10
申请人： Satoshi Kaneko , Shuji Hirai , Shinichi Akatsu , Shingo Suzuki , Tetsuya Muto , Keita Gotoh , Yuuichiroh Uematsu , Hitoshi Ishibashi
发明人： Satoshi Kaneko , Shuji Hirai , Shinichi Akatsu , Shingo Suzuki , Tetsuya Muto , Keita Gotoh , Yuuichiroh Uematsu , Hitoshi Ishibashi
CPC分类号： G06K15/1881 , B41J29/393 , G03G15/0189 , G03G15/5058 , G06K15/027 , G06K15/14 , H04N1/6033
摘要： An image forming apparatus includes an image density detector, an image forming device, a rotator, an image density controller, and a timing correction data obtainer. The image density detector detects a toner density of an image formed on an image bearing member. An image forming device forms the image using a density adjustable element that adjusts the density of the image. The rotator forms an image pattern while the density adjustable element is changed, and a density thereof is detected by the image density detector. The image density controller controls the image forming device using a density correction data for the density adjustable element corresponding to a rotational period of the rotator. The timing correction data obtainer obtains timing correction data for correction of driving timing of the image forming device based on a change in the density of the image pattern detected by the image density detector.
摘要翻译： 图像形成装置包括图像浓度检测器，图像形成装置，旋转器，图像浓度控制器和定时校正数据获取器。 图像浓度检测器检测形成在图像承载部件上的图像的调色剂浓度。 图像形成装置使用调节图像的浓度的浓度可调元件形成图像。 旋转体在密度可调元件改变时形成图像图案，并且其浓度由图像浓度检测器检测。 图像浓度控制器使用与旋转体的旋转周期对应的密度可调元件的浓度校正数据来控制图像形成装置。 定时校正数据获取器基于由图像浓度检测器检测到的图像图案的浓度的变化获得用于校正图像形成装置的驱动定时的定时校正数据。
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公开(公告)号：US08983320B2
公开(公告)日：2015-03-17
申请号：US14203798
申请日：2014-03-11
申请人： Shingo Suzuki , Satoshi Kaneko , Tetsuya Muto , Shuji Hirai , Shinichi Akatsu , Keita Gotoh , Yuuichiroh Uematsu
发明人： Shingo Suzuki , Satoshi Kaneko , Tetsuya Muto , Shuji Hirai , Shinichi Akatsu , Keita Gotoh , Yuuichiroh Uematsu
CPC分类号： G03G15/065 , G03G15/5058 , G03G2215/0129 , G03G2215/0164
摘要： An image forming apparatus includes a latent-image bearing body, a charging unit, a latent-image writing unit, a development unit, a development power, and a bias control unit. After a start of an image forming operation, the bias control unit performs a process of constantly maintaining an output of a development bias at an adjustment bias value. The adjustment bias value is a central value in a periodic fluctuation range of the output of the development bias. At a timing at which a difference of the development bias from the adjustment bias value in the periodic fluctuation range is less than or equal to a predetermined threshold value, the bias control unit performs switching from the process of constantly maintaining the output of the development bias at the adjustment bias value to a process of periodically changing the output of the development bias based on development bias control data.
摘要翻译： 图像形成装置包括潜像承载体，充电单元，潜像写入单元，显影单元，显影电力和偏置控制单元。 在图像形成操作开始之后，偏置控制单元执行持续将显影偏压的输出保持在调整偏置值的处理。 调整偏差值是显影偏压输出的周期性波动范围内的中心值。 在显影偏差与周期性波动范围内的调整偏置值的差小于或等于预定阈值的定时，偏置控制单元从持续保持显影偏压的输出的处理开始切换 将调整偏差值设定为基于显影偏压控制数据周期性地改变显影偏压的输出的过程。
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公开(公告)号：US10061226B2
公开(公告)日：2018-08-28
申请号：US15477576
申请日：2017-04-03
申请人： Kazuaki Kamihara , Yuuichiroh Uematsu , Tetsuya Muto , Tomohide Takenaka , Keita Sone , Keita Gotoh , Masahiko Shakuto , Takamasa Ozeki , Mutsuki Morinaga , Hitoshi Yamamoto , Keiko Kajimura
发明人： Kazuaki Kamihara , Yuuichiroh Uematsu , Tetsuya Muto , Tomohide Takenaka , Keita Sone , Keita Gotoh , Masahiko Shakuto , Takamasa Ozeki , Mutsuki Morinaga , Hitoshi Yamamoto , Keiko Kajimura
CPC分类号： G03G15/0855 , G03G15/0131 , G03G15/0189 , G03G15/0806 , G03G15/0856 , G03G15/0865 , G03G15/5058 , G03G15/556
摘要： An image forming apparatus includes an image bearer, a toner image forming device, a plurality of image density detectors, and a controller. The plurality of image density detectors are disposed at predetermined intervals opposite the image bearer in a width direction of the image bearer. The controller causes the toner image forming device to form toner image patterns having an identical density at the plurality of positions on the image bearer and the plurality of image density detectors detects a density of the toner image patterns. Based on the detected density of the toner image patterns, the controller identifies multiple cyclic fluctuations of the density of the toner image patterns and adjusts an image forming condition based on the multiple cyclic fluctuations of the density of the toner image patterns to decrease an amplitude caused by the multiple cyclic fluctuations of the density of the toner image patterns.
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10.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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