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    IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PREVENTING IMAGE DENSITY FLUCTUATION
    1.
    发明申请
    IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PREVENTING IMAGE DENSITY FLUCTUATION 有权
    能有效预防图像密度波动的图像形成装置

    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。

    IMAGE FORMING APPARATUS
    2.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    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。

    IMAGE FORMING APPARATUS
    3.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    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。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    4.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
    图像形成装置和图像形成方法

    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。

    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    5.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
    图像形成装置和图像形成方法

    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。

    IMAGE FORMING APPARATUS
    9.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号：US20120155899A1

    公开(公告)日：2012-06-21

    申请号：US13327208

    申请日：2011-12-15

    申请人： Naoto WATANABE ,  Tetsuya MUTO

    发明人： Naoto WATANABE ,  Tetsuya MUTO

    IPC分类号： G03G15/00

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

    摘要： An image forming apparatus includes: a charging unit that uniformly charges a surface of a latent image carrier; a latent-image forming unit; a developing unit that performs development by causing toner to electrostatically adhere on the surface of the carrier; a transfer unit that transfers a toner image onto a recording medium; and an image-density adjusting unit that causes to form a multi-gradation patch pattern on the surface of the carrier, that causes to detect potentials of latent image patches in the multi-gradation patch pattern, that causes to detect a toner adhesion amount on each toner patch, and that performs control of an image density. One of part and all of the low-density latent image patches is a dot-dispersed latent image patch in which the arrangement of unit dot latent images in the basic dot matrix is determined so that a minimum center-to-center distance having a smallest value is maximized.

    摘要翻译： 一种图像形成装置包括：对潜像载体的表面均匀充电的充电单元; 潜像形成单元; 显影单元，其通过使调色剂静电粘附在载体的表面上来进行显影; 转印单元，其将调色剂图像转印到记录介质上; 以及图像浓度调整单元，其导致在载体的表面上形成多灰度贴片图案，其导致检测多层次贴片图案中的潜像斑块的电位，导致检测调色剂附着量 每个调色剂贴片，并且执行图像浓度的控制。 低密度潜像贴片的一部分和全部是点分散潜像贴片，其中确定基本点阵中的单位点潜像的布置，使得具有最小的中心至中心的最小距离 价值最大化。

    TRANSFER UNIT AND IMAGE FORMING APPARATUS USING THE UNIT
    10.
    发明申请
    TRANSFER UNIT AND IMAGE FORMING APPARATUS USING THE UNIT 有权
    传输单元和使用单元的图像形成设备

    公开(公告)号：US20080279589A1

    公开(公告)日：2008-11-13

    申请号：US12119050

    申请日：2008-05-12

    申请人： Tetsuya MUTO ,  Ken YOSHIDA

    发明人： Tetsuya MUTO ,  Ken YOSHIDA

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0291 ,  G03G15/0194 ,  G03G2215/0129 ,  G03G2215/026

    摘要： An image forming apparatus includes a plurality of image forming units and a plurality of transfer units. The image forming units have corresponding image carriers and charging units. The image forming units form toner images of different colors on the corresponding image carriers. The transfer units face the corresponding image carriers to form transfer areas between the transfer units and the image carriers, and press a transfer member to the corresponding image carriers to transfer the toner images onto the transfer member at the transfer areas. The charging units include at least one corona-type charger and at least one contact-type charger. The image forming apparatus sets a first transfer condition for the transfer unit(s) corresponding to the image carrier(s) charged by the at least one corona-type charger and a second, separate transfer condition for the transfer unit(s) corresponding to the image carrier(s) charged by the at least one contact-type charger.

    摘要翻译： 图像形成装置包括多个图像形成单元和多个转印单元。 图像形成单元具有对应的图像载体和充电单元。 图像形成单元在相应的图像载体上形成不同颜色的调色剂图像。 转印单元面对相应的图像载体，以在转印单元和图像载体之间形成转印区域，并将转印元件按压到相应的图像载体上，以将转印区域上的调色剂图像转印到转印元件上。 充电单元包括至少一个电晕型充电器和至少一个接触式充电器。 图像形成装置设置与由至少一个电晕型充电器充电的图像载体相对应的转印单元的第一转印条件和用于与至少一个电晕型充电器对应的转印单元的第二单独转印条件 所述图像载体由所述至少一个接触式充电器充电。