An image forming apparatus includes a charging device that, by allowing a brush roller to be rotated so as to be set in contact with a surface of a photosensitive body, charge the surface of an image carrier, a light exposure device that radiates image information light onto the surface of the image...http://www.google.de/patents/US6915093?utm_source=gb-gplus-sharePatent US6915093 - Image forming apparatus having a guide device for guiding a brush roller
