DEVELOPING APPARATUS TO MAKE STRUCTURE SIMPLE AND OUTPUT AN IMAGE WITH HIGH QUALITY

摘要

PURPOSE: A developing apparatus is provided to make structure simple and output an image with high quality by maintaining a uniform developing gap constantly without using a separate pressuring member. CONSTITUTION: A rotatable photosensitive drum(130) is provided. A developing roller(220) fixes developer on the photosensitive drum while it is rotated by interworking with the photosensitive drum. A developer supply roller(240) supplies the developer to the developing roller. The first supporting structure(110) rotatably supports the photosensitive drum. An idle gear(160) is installed at the first supporting structure so that the centers of the idle gear, the photosensitive drum and the developing roller can form a triangle. The idle gear delivers rotation drive power of the developing roller to the developer supply roller.