Image forming apparatus and method of correcting color registration error
    2.
    发明授权
    Image forming apparatus and method of correcting color registration error 有权
    图像形成装置和校正颜色配准误差的方法

    公开(公告)号:US09020406B2

    公开(公告)日:2015-04-28

    申请号:US14101504

    申请日:2013-12-10

    IPC分类号: G03G15/01 G03G15/00

    摘要: An image forming apparatus includes a color registration error amount calculation unit that calculates a color registration error amount from a first test pattern; a correction information obtaining unit that obtains a correction information for correcting an image on a back surface based on previously obtained contraction information of a printing paper after printing an image on a front surface when printing on both surfaces; and an image data correction unit that corrects the image on the back surface based on the color registration error amount calculated by the color registration error amount and the correction information obtained by the correction information obtaining unit.

    摘要翻译: 一种图像形成装置,包括从第一测试图案计算颜色配准误差量的颜色配准误差量计算单元; 校正信息获取单元,当在两个表面上打印时,在基于先前获得的打印纸的收缩信息在前表面上打印图像之后,获得用于校正背面上的图像的校正信息; 以及图像数据校正单元,其基于由颜色配准误差量计算的颜色配准误差量和由校正信息获取单元获得的校正信息来校正背面上的图像。

    Image forming apparatus and method
    3.
    发明授权
    Image forming apparatus and method 有权
    图像形成装置及方法

    公开(公告)号:US08862002B2

    公开(公告)日:2014-10-14

    申请号:US13609737

    申请日:2012-09-11

    IPC分类号: G03G15/00 G03G15/01

    摘要: An image forming apparatus reduces superimposing misalignment due to skew difference and registration difference and superimposing misalignment of visible image due to periodic position error generated on a plurality of latent image carriers respectively by correcting image information. A controller of the image forming apparatus has a deviation amount storing unit store data of magnification error in the sub-scanning direction e, executes rotation posture determining process that sets writing rotation posture as rotation angle posture at the time of starting writing latent image on photoconductors for Y, M, C, and K respectively, and has an image data correcting unit correct the image information based on the determined writing rotation posture and various error data (including magnification error in the sub-scanning direction e).

    摘要翻译: 图像形成装置通过校正图像信息,分别减少由于偏差和配准差引起的叠加不对准,并且由于分别在多个潜像载体上产生的周期性位置误差而叠加可见图像的未对准。 图像形成装置的控制器具有偏离量存储单元存储副扫描方向e的放大误差数据,执行旋转姿势确定处理,其将写入旋转姿势设定为开始将潜像写入到感光体上的旋转角度姿势 对于Y,M,C和K分别具有图像数据校正单元,该图像数据校正单元基于确定的写入旋转姿势和各种错误数据(包括副扫描方向e的倍率误差)来校正图像信息。