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：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。

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

IPC分类号： G06K15/02 ,  G06K15/14 ,  B41J29/393 ,  H04N1/60 ,  G03G15/00 ,  G03G15/01

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：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

IPC分类号： G03G15/06 ,  G03G15/00

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。

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

IPC分类号： G03G15/00 ,  G03G15/01

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。

公开(公告)号：US10474056B2

公开(公告)日：2019-11-12

申请号：US16227980

申请日：2018-12-20

申请人： Yuuichiroh Uematsu ,  Satoshi Kaneko ,  Terumichi Ochi ,  Shuji Hirai

发明人： Yuuichiroh Uematsu ,  Satoshi Kaneko ,  Terumichi Ochi ,  Shuji Hirai

IPC分类号： G03G15/04 ,  G03G15/043 ,  G03G15/00

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.

公开(公告)号：US20190196355A1

公开(公告)日：2019-06-27

申请号：US16227980

申请日：2018-12-20

申请人： Yuuichiroh UEMATSU ,  Satoshi Kaneko ,  Terumichi Ochi ,  Shuji Hirai

发明人： Yuuichiroh UEMATSU ,  Satoshi Kaneko ,  Terumichi Ochi ,  Shuji Hirai

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.

公开(公告)号：US09052663B2

公开(公告)日：2015-06-09

申请号：US14227169

申请日：2014-03-27

申请人： Shingo Suzuki ,  Satoshi Kaneko ,  Shuji Hirai ,  Koichi Kudo ,  Jun Yamane ,  Shinji Kato

发明人： Shingo Suzuki ,  Satoshi Kaneko ,  Shuji Hirai ,  Koichi Kudo ,  Jun Yamane ,  Shinji Kato

IPC分类号： G03G15/00 ,  G03G15/06

CPC分类号： G03G15/5025 ,  G03G15/065 ,  G03G15/5058

摘要： An image forming apparatus includes an image carrier; an image forming unit; a processor for controlling the image forming unit according to a predetermined image forming condition setting data; an image density sensor to detect an image density of the toner pattern formed on the image carrier; a reference rotary position detector; an image density fluctuation data acquisition unit to obtain an image density fluctuation data of more than one circumferential length of the photoreceptor drum with reference to the reference rotary position detected by the reference rotary position detector based on a result related to the toner pattern formed on the image carrier detected by the image density sensor; and a correction data generator to generate a correction data to correct a reference image forming condition setting data with a correction amount corresponding to each rotary position of the rotary member to thus reduce the image density fluctuation.

摘要翻译： 图像形成装置包括图像载体; 图像形成单元; 根据预定图像形成条件设置数据控制图像形成单元的处理器; 图像浓度传感器，用于检测形成在图像载体上的调色剂图案的图像浓度; 参考旋转位置检测器; 图像浓度波动数据获取单元，基于与在基准旋转位置检测器上形成的调色剂图案相关的结果，参考由基准旋转位置检测器检测到的参考旋转位置，获得感光鼓的多于一个圆周长度的图像浓度波动数据 由图像密度传感器检测的图像载体; 以及校正数据生成器，用于生成校正数据，以校正与旋转构件的每个旋转位置相对应的校正量的参考图像形成条件设置数据，从而减小图像浓度波动。

公开(公告)号：US08977148B2

公开(公告)日：2015-03-10

申请号：US13753859

申请日：2013-01-30

申请人： Satoshi Kaneko ,  Jun Yamane ,  Koichi Kudo ,  Shinji Kato ,  Hitoshi Ishibashi ,  Shuji Hirai ,  Shingo Suzuki

发明人： Satoshi Kaneko ,  Jun Yamane ,  Koichi Kudo ,  Shinji Kato ,  Hitoshi Ishibashi ,  Shuji Hirai ,  Shingo Suzuki

IPC分类号： G03G15/00 ,  G03G13/22

CPC分类号： G03G13/22 ,  G03G15/5037 ,  G03G15/5041

摘要： An image forming apparatus includes a rotatable image carrier that carries a toner image having a length corresponding to at least a circumferential length of the carrier; an image density detector that detects a density of the image; a potential detector that detects, over at least the circumferential length, a surface potential of the carrier before toner adheres thereto; a first image forming device that adjusts the density with a first factor, and forms an image based on a first condition of the first factor; a second image forming device that adjusts the density with a second factor, and forms an image based on a second condition of the second factor; a first determining device that determines the first condition based on uneven density; and a second determining device that determines the second condition based on uneven density and a potential distribution of the surface potential.

摘要翻译： 图像形成装置包括可转动的图像载体，其承载具有对应于载体的至少周长的长度的调色剂图像; 图像浓度检测器，其检测图像的浓度; 在调色剂附着于其之前，至少在圆周长度上检测载体的表面电位的电位检测器; 第一图像形成装置，其以第一因子调整所述浓度，并且基于所述第一因子的第一条件形成图像; 第二图像形成装置，其利用第二因子调整所述浓度，并且基于所述第二因子的第二条件形成图像; 第一确定装置，其基于不均匀密度来确定第一条件; 以及第二确定装置，其基于不均匀密度和表面电位的电位分布来确定第二条件。

公开(公告)号：US09182720B2

公开(公告)日：2015-11-10

申请号：US13591787

申请日：2012-08-22

申请人： Satoshi Kaneko ,  Shinji Kato ,  Hitoshi Ishibashi ,  Shuji Hirai ,  Jun Yamane ,  Koichi Kudo ,  Shingo Suzuki

发明人： Satoshi Kaneko ,  Shinji Kato ,  Hitoshi Ishibashi ,  Shuji Hirai ,  Jun Yamane ,  Koichi Kudo ,  Shingo Suzuki

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/5033

摘要： In an image forming apparatus, a processor generates a first density variation data based on the surface potential of the pattern in relation to the rotational position of the image bearer and a second density variation data based on the first density variation data and the density of the toner pattern, stores the first density variation data and the second density variation data in a memory, makes a pattern in a predetermined timing, decides whether the first density variation data is changed or not, change the first density variation data based on the decision, controls the toner image forming condition of the toner image forming device based on the first density variation data and the second density variation data.

摘要翻译： 在图像形成装置中，处理器基于图像载体的旋转位置相对于图案的表面电位产生第一浓度变化数据，并且基于第一浓度变化数据和密度变化数据生成第二浓度变化数据 调色剂图案将第一密度变化数据和第二浓度变化数据存储在存储器中，在预定定时中形成图案，判定第一浓度变化数据是否改变，基于该决定改变第一浓度变化数据， 基于第一浓度变化数据和第二浓度变化数据控制调色剂图像形成装置的调色剂图像形成条件。