Image forming apparatus that has a full-color mode and a monocolor mode, and image forming apparatus that can adjust the length of a non-image forming region during mode switching state
    6.
    发明授权
    Image forming apparatus that has a full-color mode and a monocolor mode, and image forming apparatus that can adjust the length of a non-image forming region during mode switching state 有权
    具有全色模式和单色模式的图像形成装置,以及可以在模式切换状态期间调整非图像形成区域的长度的图像形成装置

    公开(公告)号:US07349658B2

    公开(公告)日:2008-03-25

    申请号:US11295077

    申请日:2005-12-06

    IPC分类号: G03G15/01 G03G15/16 G03G15/00

    摘要: An image forming apparatus includes a plurality of photosensitive drums, a plurality of developing devices, an intermediate transfer medium, primary transfer members, and a secondary transfer member for transferring toner images onto a transfer material. A full-color mode and a monocolor mode are selectively carried out. The image forming apparatus also includes a CPU for adjusting the length of a non-image forming region, and an intermediate-transfer-medium movement controller. The CPU brings about a switching state in which an image forming region lies between a primary transfer position on the most downstream one of the photosensitive drums and a secondary transfer position and in which non-image forming regions simultaneously lie at the primary transfer position and at the secondary transfer position. The intermediate-transfer-medium movement controller switches between the full-color mode and the monocolor mode during the switching state.

    摘要翻译: 图像形成装置包括多个感光鼓,多个显影装置,中间转印介质,一次转印部件和用于将调色剂图像转印到转印材料上的二次转印部件。 选择性地执行全色模式和单色模式。 图像形成装置还包括用于调整非图像形成区域的长度的CPU和中间转印介质移动控制器。 CPU产生切换状态,其中图像形成区域位于感光鼓的最下游一个的一次转印位置和二次转印位置之间,并且非图像形成区域同时位于一次转印位置, 二次转移位置。 中间转印介质运动控制器在切换状态期间在全色模式和单色模式之间切换。

    Image forming apparatus calculating an amount of deviation of an image forming position from a reference
    7.
    发明授权
    Image forming apparatus calculating an amount of deviation of an image forming position from a reference 有权
    图像形成装置计算图像形成位置与基准的偏差量

    公开(公告)号:US08571451B2

    公开(公告)日:2013-10-29

    申请号:US13020092

    申请日:2011-02-03

    IPC分类号: G03G15/01

    CPC分类号: G03G15/0126 G03G2215/0161

    摘要: An image forming apparatus is capable of more accurately detecting the relationship between an actual amount of color deviation and an estimated amount of color deviation. The image forming apparatus forms a color deviation detection mark at timing when the estimated amount of deviation reaches a threshold value. The timing is different from the timing when it is determined that it is necessary to perform normal calibration. The image forming apparatus determines the relationship between the actual amount of deviation of an image forming position from a reference and the estimated amount of deviation to set an estimating unit for estimating the amount of deviation.

    摘要翻译: 图像形成装置能够更精确地检测实际的颜色偏差量与估计的颜色偏差量之间的关系。 图像形成装置在估计的偏差量达到阈值的定时形成色偏检测标记。 定时与确定需要进行正常校准的时间不同。 图像形成装置确定图像形成位置与基准的实际偏离量与估计的偏差量之间的关系,以设置用于估计偏差量的估计单元。