公开(公告)号：US4935777A

公开(公告)日：1990-06-19

申请号：US221666

申请日：1988-07-20

申请人： Teruhiko Noguchi ,  Yuji Okamoto ,  Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Itaru Kawabata ,  Tooru Nakata ,  Jitsuo Masuda

发明人： Teruhiko Noguchi ,  Yuji Okamoto ,  Yoshiharu Tsujimoto ,  Hiroshi Kinashi ,  Yuhi Yui ,  Itaru Kawabata ,  Tooru Nakata ,  Jitsuo Masuda

IPC分类号： G03G21/00 ,  G03G21/08

CPC分类号： G03G21/08 ,  G03G21/0094

摘要： Before a photoreceptor for an electrophotographic image forming apparatus is uniformly charged at the beginning of a process for forming a latent electrostatic image thereon, the photoreceptor is exposed to charge-removing light for stabilizing the surface potential such that a high-quality image can be obtained. The level of exposure is modified in view of the fatigue and recovery characteristics of the photoreceptor. During a continuous operation of the photoreceptor, the level is logarithmically reduced. When the photoreceptor is started again after a rest period, the initial level of exposure is adjusted by logarithmically increasing it according to the length of the rest period as well as in view of the level of exposure prior to the rest period.

摘要翻译： 在电子照相成像装置的感光体在其上形成静电潜像的处理开始时被均匀充电时，感光体暴露于电荷去除光中，以稳定表面电位，使得可以获得高质量的图像 。 考虑到感光体的疲劳和恢复特性，曝光水平被改变。 在感光体的连续操作期间，水平对数减小。 当在休息期后再次开始感光器时，根据休息期的长度以及考虑到休息期之前的暴露水平，通过对数地增加暴露的初始水平进行调整。