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发明授权
US5534977A Image forming apparatus having a function to charge a photoreceptor drum at an appropriate potential 失效
具有对适当电位对感光鼓进行充电的功能的图像形成装置

Image forming apparatus having a function to charge a photoreceptor drum at an appropriate potential
摘要：
An image forming apparatus with which the surface potential of the photoreceptor drum is made appropriate reliably in a relatively short time is provided with the following: a charger unit for charging the surface of the photoreceptor drum; an exposing unit for forming a latent image; a potential sensor for detecting a charge potential; and a controller for controlling outputs of the charger unit and the exposing unit. The surface potential of the photoreceptor drum is made appropriate by detecting and correcting the potential after the photoreceptor drum surface is charged at a potential close to a desired potential. After both the dark and bright portions are charged at appropriate potentials, image formation is performed.
摘要（中）：

在较短的时间内可靠地使感光鼓的表面电位适当地成像的图像形成装置设置有用于对感光鼓的表面充电的充电器单元; 用于形成潜像的曝光单元; 用于检测电荷电位的电位传感器; 以及用于控制充电器单元和曝光单元的输出的控制器。 通过在感光鼓表面以接近期望电位的电位充电之后检测和校正电位，使感光鼓的表面电位适当。 在两个暗部和明亮部分以适当的电位充电之后，进行成像。

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