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    Image forming apparatus and image forming method
    4.
    发明公开
    Image forming apparatus and image forming method 有权
    成像装置和成像方法

    公开(公告)号：EP2078988A2

    公开(公告)日：2009-07-15

    申请号：EP09150242.7

    申请日：2009-01-08

    申请人： Ricoh Company, Ltd.

    发明人： Tamoto, Nozomu ,  Tada, Hiromi ,  Iwamoto, Takafumi ,  Inaba, Yoshinori

    IPC分类号： G03G13/00 ,  G03G15/00 ,  G03G5/00

    CPC分类号： G03G5/0535 ,  G03G5/043 ,  G03G5/047 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/14721 ,  G03G5/14769 ,  G03G15/0266 ,  G03G15/20 ,  G03G15/751 ,  G03G2215/00957 ,  G03G2215/025

    摘要： An image forming apparatus including an image bearing member beating an electrostatic latent image thereon, a charging device charging the image bearing member, a light irradiating device irradiating the charged image bearing member with light to form the electrostatic latent image, and a developing device developing the electrostatic latent image to form a toner image, wherein the charging time determined by dividing the width of a charging area charged by the charging device in units of mm by the linear velocity of the image bearing member in units of mm/msec is not shorter than the transit time of the image bearing member. The transit time is defined as the time at which an inflection point is firstly observed in a curve showing relationship of the interval between light irradiation and measurement of potential of an irradiated portion with the potential of the irradiated portion, when the interval is shortened.

    摘要翻译： 本发明提供一种图像形成装置，该图像形成装置包括：图像承载部件，在其上打印静电潜像;充电装置，对图像承载部件充电;光照射装置，用光照射带电图像承载部件以形成静电潜像;以及显影装置， 其中通过以毫米/毫秒为单位将由所述充电装置充电的充电区域的宽度以mm为单位除以所述图像承载部件的线速度所确定的充电时间不小于所述静电潜像的充电时间 图像承载部件的渡越时间。 通过时间被定义为当曲线显示首次观察拐点的时间，该曲线示出了当间隔缩短时，光照射的间隔与照射部分的电位的测量与被照射部分的电位的测量之间的关系。