Image forming apparatus featuring a cleaning brush for removing residual developer

摘要

An electrophotographic apparatus comprises a photosensitive member, exposing means, and cleaning means for cleaning a residual developer from the photosensitive member, which comprises a cleaning brush brought into contact with the photosensitive member. In this case, a brush density of the cleaning brush is D (number/mm²), and an area of a pixel of an electrostatic image is S (mm²/dot), and DxS>=0.06 and D<=200 are satisfied. Thus, an image forming apparatus is provided, in which cleaning stability is improved by uniformly scraping off and dispersing the transfer residual developer from the photosensitive member.