Image forming apparatus and image density control method
    2.
    发明授权
    Image forming apparatus and image density control method 有权
    图像形成装置和图像浓度控制方法

    公开(公告)号:US07929873B2

    公开(公告)日:2011-04-19

    申请号:US12037717

    申请日:2008-02-26

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0853 G03G2215/0634

    摘要: An image forming apparatus includes an image carrier configured to carry an electrostatic latent image, a developing device configured to develop the electrostatic latent image with a two-component developer including toner and magnetic carrier, a toner supplier configured to supply the toner to the developing device, a toner concentration detector configured to detect toner concentration in the two-component developer inside the developing device, and a controller. The controller is configured to detect first information to determine toner replacement amount in the developing device during a predetermined time period and second information to determine a charge characteristic of the toner in the developing device, change a toner concentration control reference value based on the first information and the second information, and control the toner concentration based on an output from the toner concentration detector and the toner concentration control reference value.

    摘要翻译: 图像形成装置包括构造成承载静电潜像的图像载体,构造成用包括调色剂和磁性载体的双组分显影剂显影静电潜像的显影装置,构造成将调色剂供给到显影装置的调色剂供应器 调色剂浓度检测器,被配置为检测显影装置内的双组分显影剂中的调色剂浓度,以及控制器。 控制器被配置为检测第一信息以确定在预定时间段期间显影装置中的调色剂更换量,以及用于确定显影装置中的调色剂的充电特性的第二信息,基于第一信息改变调色剂浓度控制参考值 和第二信息,并且基于调色剂浓度检测器的输出和调色剂浓度控制参考值来控制调色剂浓度。

    Image forming apparatus and image density control method
    4.
    发明授权
    Image forming apparatus and image density control method 有权
    图像形成装置和图像浓度控制方法

    公开(公告)号:US08175471B2

    公开(公告)日:2012-05-08

    申请号:US11952553

    申请日:2007-12-07

    IPC分类号: G03G15/08

    摘要: An image forming apparatus is disclosed that includes an image density control unit that performs control operations based on an image density control condition that is adjustably set to control an output image to have a predetermined image density, an image density control condition modifying unit that calculates a modified image density control condition based on information on an amount of toner exchanged at a developing apparatus within a predetermined period and a parameter for image density control condition calculation and sets the modified image density control condition as the image density control condition to be used by the image density control unit, and a parameter modifying unit that modifies the parameter for image density control condition calculation used by the image density control condition modifying unit based on a toner pattern detection result obtained by detecting a toner pattern formed on a belt member.

    摘要翻译: 公开了一种图像形成装置,其包括:图像浓度控制单元,其基于可调节地设置为控制输出图像以具有预定图像浓度的图像浓度控制条件执行控制操作;图像浓度控制条件修改单元, 基于在预定时段内在显影装置处交换的调色剂量的信息和图像浓度控制条件计算的参数的修改的图像浓度控制条件,并将修改的图像浓度控制条件设置为由图像浓度控制条件使用的图像浓度控制条件 图像浓度控制单元和参数修改单元,其基于通过检测形成在带构件上的调色剂图案而获得的调色剂图案检测结果来修改由图像浓度控制条件修改单元使用的图像浓度控制条件计算的参数。

    IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD
    6.
    发明申请
    IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD 有权
    图像形成装置和图像密度控制方法

    公开(公告)号:US20080145078A1

    公开(公告)日:2008-06-19

    申请号:US11952553

    申请日:2007-12-07

    IPC分类号: G03G15/10

    摘要: An image forming apparatus is disclosed that includes an image density control unit that performs control operations based on an image density control condition that is adjustably set to control an output image to have a predetermined image density, an image density control condition modifying unit that calculates a modified image density control condition based on information on an amount of toner exchanged at a developing apparatus within a predetermined period and a parameter for image density control condition calculation and sets the modified image density control condition as the image density control condition to be used by the image density control unit, and a parameter modifying unit that modifies the parameter for image density control condition calculation used by the image density control condition modifying unit based on a toner pattern detection result obtained by detecting a toner pattern formed on a belt member.

    摘要翻译: 公开了一种图像形成装置,其包括:图像浓度控制单元,其基于可调节地设置为控制输出图像以具有预定图像浓度的图像浓度控制条件执行控制操作;图像浓度控制条件修改单元, 基于在预定时段内在显影装置处交换的调色剂量的信息和图像浓度控制条件计算的参数的修改的图像浓度控制条件,并将修改的图像浓度控制条件设置为由图像浓度控制条件使用的图像浓度控制条件 图像浓度控制单元,以及参数修改单元,其基于通过检测形成在带构件上的调色剂图案而获得的调色剂图案检测结果来修改由图像浓度控制条件修改单元使用的图像浓度控制条件计算的参数。