公开(公告)号：US20190163108A1

公开(公告)日：2019-05-30

申请号：US16162619

申请日：2018-10-17

申请人： Kohhei SAKURADA ,  Katsuya Akiba ,  Yasuhito Shinchi ,  Shinichi Akatsu ,  Tetsuya Muto ,  Hiroki Yamamura

发明人： Kohhei SAKURADA ,  Katsuya Akiba ,  Yasuhito Shinchi ,  Shinichi Akatsu ,  Tetsuya Muto ,  Hiroki Yamamura

IPC分类号： G03G15/00 ,  G03G15/02

摘要： An image forming apparatus includes an image forming device to form an image on an image bearer and circuitry configured to accept, from a user, an input of a density level selected from a plurality of different density levels and control an image forming condition under which the image forming device forms the image. The circuitry is configured to correct density unevenness of the image formed on the image bearer by the image forming device and correct the density unevenness of the image at the density level accepted. The density unevenness is unevenness appearing in a main scanning direction orthogonal to a direction of conveyance of the image bearer during image formation.

公开(公告)号：US09565319B2

公开(公告)日：2017-02-07

申请号：US14879177

申请日：2015-10-09

申请人： Tetsuya Muto ,  Shinichi Akatsu ,  Akira Yoshida ,  Keita Gotoh ,  Yuuichiroh Uematsu

发明人： Tetsuya Muto ,  Shinichi Akatsu ,  Akira Yoshida ,  Keita Gotoh ,  Yuuichiroh Uematsu

IPC分类号： G03G15/01 ,  H04N1/00 ,  H04N1/60

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。

公开(公告)号：US20090324267A1

公开(公告)日：2009-12-31

申请号：US12482782

申请日：2009-06-11

申请人： Akira YOSHIDA ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Shuji Hirai ,  Kayoko Tanaka ,  Yushi Hirayama ,  Tetsuya Muto

发明人： Akira YOSHIDA ,  Shin Hasegawa ,  Hitoshi Ishibashi ,  Yoshiaki Miyashita ,  Kohta Fujimori ,  Nobutaka Takeuchi ,  Shuji Hirai ,  Kayoko Tanaka ,  Yushi Hirayama ,  Tetsuya Muto

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0131 ,  G03G2215/00059 ,  G03G2215/00063

摘要： An image forming apparatus forms a plurality of tone patterns of different colors, each of which containing a plurality of toner patches having different toner densities. Some of the toner patches in each of the tone patterns are formed with a predetermined fixed developing bias and the rest of the toner patches in each of the tone patterns are formed with developing biases set based on previous developing biases that have been obtained through a previous control process. The largest toner density of the toner patches in each of the tone patterns is determined based on a magnitude relation of previous index values obtained through the previous control process.

摘要翻译： 图像形成装置形成不同颜色的多个色调图案，每个色调图案包含具有不同调色剂浓度的多个调色剂贴片。 每个色调图案中的一些调色剂贴片以预定的固定的显影偏压形成，并且每个色调图案中的其余调色剂贴片形成有基于先前显影偏差设定的显影偏压， 控制过程。 基于通过先前的控制处理获得的先前指标值的大小关系确定每个色调图案中的调色剂贴片中最大的调色剂浓度。

公开(公告)号：US20170199480A1

公开(公告)日：2017-07-13

申请号：US15296542

申请日：2016-10-18

申请人： Mutsuki MORINAGA ,  Tadashi KASAI ,  Jun HITOSUGI ,  Takamasa OZEKI ,  Makoto YASUDA ,  Kunio HASEGAWA ,  Emiko SHIRAISHI ,  Hitoshi YAMAMOTO ,  Masahiko SHAKUTO ,  Tetsuya MUTO ,  Keiko KAJIMURA ,  Tomoya OHSUGI

发明人： Mutsuki MORINAGA ,  Tadashi KASAI ,  Jun HITOSUGI ,  Takamasa OZEKI ,  Makoto YASUDA ,  Kunio HASEGAWA ,  Emiko SHIRAISHI ,  Hitoshi YAMAMOTO ,  Masahiko SHAKUTO ,  Tetsuya MUTO ,  Keiko KAJIMURA ,  Tomoya OHSUGI

IPC分类号： G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/0189 ,  G03G15/0849 ,  G03G15/5058 ,  G03G15/55 ,  G03G15/556 ,  G03G2215/00059 ,  G03G2215/0164

摘要： An image forming apparatus includes a toner pattern bearer to bear a first toner pattern having a first image area rate and a second toner pattern having a second image area rate different from the first image area rate. A toner adhesion amount detector detects a toner adhesion amount of toner of each of the first toner pattern and the second toner pattern. A toner degradation rate calculator calculates a first deviation in the toner adhesion amount of the first toner pattern and a second deviation in the toner adhesion amount of the second toner pattern based on the toner adhesion amount detected by the toner adhesion amount detector. The toner degradation rate calculator compares the first deviation with the second deviation and calculates a toner degradation rate based on a comparison result.

公开(公告)号：US20160112580A1

公开(公告)日：2016-04-21

申请号：US14879177

申请日：2015-10-09

申请人： Tetsuya MUTO ,  Shinichi AKATSU ,  Akira YOSHIDA ,  Keita GOTOH ,  Yuuichiroh UEMATSU

发明人： Tetsuya MUTO ,  Shinichi AKATSU ,  Akira YOSHIDA ,  Keita GOTOH ,  Yuuichiroh UEMATSU

IPC分类号： H04N1/00 ,  G03G15/01 ,  H04N1/60

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。

公开(公告)号：US09229361B2

公开(公告)日：2016-01-05

申请号：US14329292

申请日：2014-07-11

申请人： Junichi Matsumoto ,  Kiyonori Tsuda ,  Nobuo Takami ,  Yutaka Takahashi ,  Kentaro Mikuniya ,  Keinosuke Kondoh ,  Tetsuya Muto

发明人： Junichi Matsumoto ,  Kiyonori Tsuda ,  Nobuo Takami ,  Yutaka Takahashi ,  Kentaro Mikuniya ,  Keinosuke Kondoh ,  Tetsuya Muto

IPC分类号： G03G15/08 ,  G03G15/00

CPC分类号： G03G15/0849 ,  G03G15/0856 ,  G03G15/0865 ,  G03G15/0879 ,  G03G15/553 ,  G03G2215/0888 ,  G03G2221/183

摘要： An image forming apparatus includes a developing device; a developer conveyance device including a developer container, a developer reservoir to receive developer discharged from the developer container, and a positive-displacement pump to discharge, from the developer reservoir, developer supplied to the developing device by alternately generating positive pressure and negative pressure due to volume changes; and a controller to control driving of the positive-displacement pump. When the controller recognizes a developer end state of the developer container, the controller lowers a developer conveyance capability of the positive-displacement pump from a setting used before the developer end state is recognized.

摘要翻译： 图像形成装置包括显影装置; 显影剂输送装置，包括显影剂容器，用于接收从显影剂容器排出的显影剂的显影剂储存器，以及正位移泵，其通过交替地产生正压和负压而从显影剂储存器向显影装置供给显影剂 量变化; 以及用于控制正排量泵的驱动的控制器。 当控制器识别显影剂容器的显影剂结束状态时，控制器从识别显影剂结束状态之前的设置降低正排量泵的显影剂输送能力。

公开(公告)号：US20140270827A1

公开(公告)日：2014-09-18

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。

公开(公告)号：US20140268242A1

公开(公告)日：2014-09-18

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

IPC分类号： G06K15/02 ,  G06K15/14

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。

公开(公告)号：US08311422B2

公开(公告)日：2012-11-13

申请号：US12566137

申请日：2009-09-24

申请人： Yushi Hirayama ,  Hitoshi Ishibashi ,  Tetsuya Muto

发明人： Yushi Hirayama ,  Hitoshi Ishibashi ,  Tetsuya Muto

IPC分类号： G03G15/08 ,  G03G15/00 ,  G03G15/10

CPC分类号： G03G15/0896 ,  G03G15/0856 ,  G03G15/086 ,  G03G15/0879 ,  G03G15/0893 ,  G03G15/55 ,  G03G15/553 ,  G03G2215/0634

摘要： An image forming apparatus includes a problem-occurrence determining unit, a problem-occurrence area determining unit, and a notifying unit. If the problem-occurrence determining unit determines that a problem has occurred in an image forming process, the problem-occurrence area determining unit determines whether the problem is caused by a toner filling process on the basis of toner-filling control data and toner-supply control data. The notifying unit then notifies the determination as to whether the problem is caused by the toner filling process.

摘要翻译： 图像形成装置包括问题发生确定单元，问题发生区域确定单元和通知单元。 如果问题发生确定单元确定在图像形成处理中已经发生问题，则问题发生区域确定单元基于调色剂填充控制数据和调色剂供应来确定问题是由调色剂填充处理引起的 控制数据。 通知单元然后通知关于该问题是否由调色剂填充过程引起的确定。

公开(公告)号：US20110110689A1

公开(公告)日：2011-05-12

申请号：US12907576

申请日：2010-10-19

申请人： Yushi HIRAYAMA ,  Eichi Koizumi ,  Hitoshi Ishibashi ,  Tetsuya Muto

发明人： Yushi HIRAYAMA ,  Eichi Koizumi ,  Hitoshi Ishibashi ,  Tetsuya Muto

IPC分类号： G03G15/08

CPC分类号： G03G15/0834 ,  G03G15/0868 ,  G03G15/0879 ,  G03G15/0893 ,  G03G15/0896

摘要： A toner supplying device including a secondary toner container, a first feeding member performing a first feeding operation of feeding toner from a toner container to the secondary container on demand, a second feeding member performing a second feeding operation of feeding the toner from the secondary container to a developing device on demand, and a toner supply controller controlling the amount of the toner in the secondary container to be greater than a predetermined amount. The controller performs first control in which when the first feeding operation is performed, the amount of the toner fed in the second feeding operation per unit of time is decreased, or second control in which when the amount of the toner fed in the second feeding operation is greater than a predetermined amount, the amount of the toner fed in the first feeding operation per unit of time is decreased.

摘要翻译： 一种调色剂供给装置，包括二次调色剂容器，执行从调色剂容器将调色剂从调色剂容器供给到第二容器的第一进料操作的第一进料部件;第二进料部件，进行从第二容器供给调色剂的第二进料操作 并且调色剂供应控制器控制次级容器中的调色剂量大于预定量。 控制器执行第一控制，其中当执行第一进给操作时，每单位时间在第二进给操作中供给的调色剂量减少，或者当第二进给操作中供给的调色剂量时 大于预定量时，每单位时间在第一送料操作中供给的调色剂量减少。