Image forming apparatus
    1.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US09052663B2

    公开(公告)日:2015-06-09

    申请号:US14227169

    申请日:2014-03-27

    IPC分类号: G03G15/00 G03G15/06

    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。

    Image forming apparatus and image forming method
    2.
    发明授权
    Image forming apparatus and image forming method 有权
    图像形成装置及图像形成方法

    公开(公告)号:US08977148B2

    公开(公告)日:2015-03-10

    申请号:US13753859

    申请日:2013-01-30

    IPC分类号: G03G15/00 G03G13/22

    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。

    Image forming apparatus capable of reducing image density irregularity
    3.
    发明授权
    Image forming apparatus capable of reducing image density irregularity 有权
    能够降低图像浓度不均匀的图像形成装置

    公开(公告)号:US09046850B2

    公开(公告)日:2015-06-02

    申请号:US13361431

    申请日:2012-01-30

    IPC分类号: G03G15/00

    摘要: In an image forming apparatus, a first controller forms a first image pattern on an image bearer and determines a first image formation condition based on a detection result of density of a toner image. The first controller then controls a toner image forming device based on the first image formation condition. A second controller forms a second image pattern different from the first image pattern on an image bearer and determines a second image formation condition based on a detection result of density of a toner image. The second controller then controls a toner image forming device based on the second image formation condition.

    摘要翻译: 在图像形成装置中,第一控制器在图像载体上形成第一图像图案,并且基于调色剂图像的浓度的检测结果确定第一图像形成条件。 然后,第一控制器基于第一图像形成条件来控制调色剂图像形成装置。 第二控制器在图像载体上形成与第一图像图案不同的第二图像图案,并且基于调色剂图像的浓度的检测结果确定第二图像形成条件。 然后,第二控制器基于第二图像形成条件控制调色剂图像形成装置。

    Image forming apparatus capable of reducing image density irregularity
    4.
    发明授权
    Image forming apparatus capable of reducing image density irregularity 有权
    能够降低图像浓度不均匀的图像形成装置

    公开(公告)号:US09182720B2

    公开(公告)日:2015-11-10

    申请号:US13591787

    申请日:2012-08-22

    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。

    Image forming apparatus capable of optimally performing density fluctuation correction
    5.
    发明授权
    Image forming apparatus capable of optimally performing density fluctuation correction 有权
    能够最佳地进行浓度波动校正的图像形成装置

    公开(公告)号:US08831449B2

    公开(公告)日:2014-09-09

    申请号:US13645785

    申请日:2012-10-05

    IPC分类号: G03G15/22 G03G15/00

    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。

    IMAGE FORMING APPARATUS CAPABLE OF REDUCING IMAGE DENSITY IRREGULARITY
    6.
    发明申请
    IMAGE FORMING APPARATUS CAPABLE OF REDUCING IMAGE DENSITY IRREGULARITY 有权
    图像形成装置可以减少图像密度不正确

    公开(公告)号:US20120201552A1

    公开(公告)日:2012-08-09

    申请号:US13361431

    申请日:2012-01-30

    IPC分类号: G03G15/00

    摘要: In an image forming apparatus, a first controller forms a first image pattern on an image bearer and determines a first image formation condition based on a detection result of density of a toner image. The first controller then controls a toner image forming device based on the first image formation condition. A second controller forms a second image pattern different from the first image pattern on an image bearer and determines a second image formation condition based on a detection result of density of a toner image. The second controller then controls a toner image forming device based on the second image formation condition.

    摘要翻译: 在图像形成装置中,第一控制器在图像载体上形成第一图像图案,并且基于调色剂图像的浓度的检测结果确定第一图像形成条件。 然后,第一控制器基于第一图像形成条件来控制调色剂图像形成装置。 第二控制器在图像载体上形成与第一图像图案不同的第二图像图案,并且基于调色剂图像的浓度的检测结果确定第二图像形成条件。 然后,第二控制器基于第二图像形成条件控制调色剂图像形成装置。

    IMAGE FORMING APPARATUS
    8.
    发明申请
    IMAGE FORMING APPARATUS 有权
    图像形成装置

    公开(公告)号:US20140301748A1

    公开(公告)日:2014-10-09

    申请号:US14227169

    申请日:2014-03-27

    IPC分类号: G03G15/00

    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。

    Image forming apparatus and image forming method
    9.
    发明授权
    Image forming apparatus and image forming method 有权
    图像形成装置及图像形成方法

    公开(公告)号:US09152896B2

    公开(公告)日:2015-10-06

    申请号:US14202563

    申请日:2014-03-10

    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
    10.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08983320B2

    公开(公告)日:2015-03-17

    申请号:US14203798

    申请日:2014-03-11

    IPC分类号: G03G15/06 G03G15/00

    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。