发明授权
US4600294A Image forming apparatus with detector and control 失效
具有检测器和控制的图像形成装置

Image forming apparatus with detector and control
摘要:
There is disclosed an electrophotographic image forming apparatus in which toner loss by deposition to non-image area is prevented by detecting the surface status of photosensitive member and applying thus detected state to the image developing device.
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