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：US20140270828A1

公开(公告)日：2014-09-18

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

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进行切换 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：US20140169814A1

公开(公告)日：2014-06-19

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

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：US20180136593A1

公开(公告)日：2018-05-17

申请号：US15713838

申请日：2017-09-25

申请人： Satoshi KANEKO ,  Shuji HIRAI ,  Yuuichiroh UEMATSU ,  Terumichi OCHI

发明人： Satoshi KANEKO ,  Shuji HIRAI ,  Yuuichiroh UEMATSU ,  Terumichi OCHI

IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G21/16

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.

公开(公告)号：US20130108292A1

公开(公告)日：2013-05-02

申请号：US13645785

申请日：2012-10-05

申请人： Shingo SUZUKI ,  Satoshi KANEKO ,  Koichi KUDO ,  Shuji HIRAI ,  Shinji KATO ,  Jun YAMANE

发明人： Shingo SUZUKI ,  Satoshi KANEKO ,  Koichi KUDO ,  Shuji HIRAI ,  Shinji KATO ,  Jun YAMANE

IPC分类号： G03G15/06

CPC分类号： G03G15/0189 ,  G03G15/5058 ,  G03G2215/0129 ,  G03G2215/0164

摘要： An image forming apparatus includes an image carrier; a developing device; a transfer device; and a fixing device. An electrostatic latent image formed on the image carrier is rendered visible as a toner image by depositing the toner by the developing device, and the toner image is transferred by the transfer device and fixed onto a recording medium by the fixing device and output. The apparatus further includes a density fluctuation meter including a rotary position detector, a density fluctuation detector, and a density fluctuation storage; a density fluctuation extractor unit including a first extractor, a second extractor, and a density fluctuation storage; and a control table generator unit including a control table generator and a control table storage, so that based on the control table stored in the control table storage, the voltage to be applied to the developing device is controlled and the toner image is output.

摘要翻译： 图像形成装置包括图像载体; 显影装置; 转移装置; 和固定装置。 通过由显影装置沉积调色剂，形成在图像载体上的静电潜像作为调色剂图像可见，并且调色剂图像由转印装置转印并通过定影装置固定在记录介质上并输出。 该装置还包括密度波动计，其包括旋转位置检测器，密度波动检测器和密度波动存储器; 密度波动提取单元，包括第一提取器，第二提取器和密度波动存储器; 以及包括控制表发生器和控制表存储器的控制表发生器单元，使得基于存储在控制表存储器中的控制表，控制施加到显影装置的电压并输出调色剂图像。

公开(公告)号：US20130243457A1

公开(公告)日：2013-09-19

申请号：US13782389

申请日：2013-03-01

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 ,  G03G13/22 ,  G03G15/0849 ,  G03G15/22 ,  G03G15/5008 ,  G03G2215/00037 ,  G03G2215/00063 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0161 ,  G03G2215/0164

摘要： An image forming apparatus includes an image carrier; a developer carrier configured to adhere toner onto the image carrier; an image density detector to detect a density of an image on the image carrier formed by the developer carrier adhering the toner on the image carrier; a rotary member to form an image pattern of which density is detected by the image density detector; and a rotational position detector to detect a rotational position of the rotary member. In the image forming apparatus, the image pattern is generated based on the rotational position detected by the rotational position detector and the rotary member that the rotational position detector detects the rotational position thereof is either the image carrier or the developer carrier.

摘要翻译： 图像形成装置包括图像载体; 构造成将调色剂粘附到图像载体上的显影剂载体; 图像浓度检测器，用于检测由图像载体上的调色剂将由显影剂载体形成的图像载体上的图像的浓度; 旋转构件，用于形成由图像浓度检测器检测密度的图像图案; 以及旋转位置检测器，用于检测旋转构件的旋转位置。 在图像形成装置中，基于由旋转位置检测器和旋转构件检测的旋转位置，旋转位置检测器检测到其旋转位置是图像载体或显影剂载体，生成图像图案。

公开(公告)号：US20130108288A1

公开(公告)日：2013-05-02

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 ,  G03G15/08

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。

公开(公告)号：US20130243456A1

公开(公告)日：2013-09-19

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

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：US20190179246A1

公开(公告)日：2019-06-13

申请号：US16181668

申请日：2018-11-06

申请人： Satoshi KANEKO ,  Yuuichiroh UEMATSU ,  Terumichi OCHI

发明人： Satoshi KANEKO ,  Yuuichiroh UEMATSU ,  Terumichi OCHI

IPC分类号： G03G15/00 ,  G03G15/06

摘要： An image forming apparatus includes a latent image bearer, a charger to charge the latent image bearer with a charging bias obtained by superimposing a charge fluctuation voltage to reduce an image density fluctuation on a direct current charging voltage, a writing device to write a latent image on the latent image bearer with writing intensity obtained by superimposing fluctuating writing intensity to reduce an image density fluctuation on constant writing intensity, a developing sleeve to which a developing bias obtained by superimposing a fluctuating developing voltage to reduce an image density fluctuation on a direct current developing voltage is applied to develop the latent image, and circuitry to control the charging bias, the writing intensity, and the developing bias. The circuitry changes the charge fluctuation voltage and the fluctuating developing voltage depending on whether the writing device writes the latent image with the fluctuating writing intensity.

公开(公告)号：US20150362879A1

公开(公告)日：2015-12-17

申请号：US14726847

申请日：2015-06-01

申请人： Satoshi KANEKO ,  Shinji KATO ,  Shuji HIRAI

发明人： Satoshi KANEKO ,  Shinji KATO ,  Shuji HIRAI

IPC分类号： G03G15/00

CPC分类号： G03G15/556 ,  G03G15/5058 ,  G03G21/145 ,  G03G2215/0161

摘要： An image forming apparatus includes an image bearer; a toner image forming device; a transfer rotator; a transfer device; a rotation position detector; an image density detector; a density data acquisition unit to causes the toner image forming device to form an adjustment toner image equal to or greater in length than a circumferential length of the image bearer, cause a linear velocity difference between the image bearer and the transfer rotator in transfer of the adjustment toner image, and acquires, from a detected image density of the toner image transferred from the image bearer, detected by the image density detector, image density unevenness data with reference to detection of a reference rotation position of one of the image bearer and a rotator; and a correction unit to adjust an image forming condition according to the reference rotation position, the image density unevenness data, and the linear velocity difference.

摘要翻译： 图像形成装置包括图像载体; 调色剂图像形成装置; 转移旋转器; 转移装置; 旋转位置检测器; 图像浓度检测器; 密度数据获取单元，用于使调色剂图像形成装置形成等于或大于图像载体的周长的调色剂图像，导致图像载体和转印旋转体之间的线速度差异， 调整调色剂图像，并且从图像载体检测到的图像承载检测到的调色剂图像的检测图像浓度中获取图像浓度不均匀性数据，参照图像载体和图像载体之一的基准旋转位置的检测 旋转器 以及校正单元，用于根据基准旋转位置，图像浓度不均匀性数据和线速度差来调整图像形成条件。