| 摘要 |
PURPOSE:To improve the recovering ratio preventing a toner from its falling and going around the belt to its back by bending the belt to a U shape through forming U-shaped guiding members that guide to the both sides of the peripheral surface of a rotating body located coaxially with a photosensitive drum and to the developing device. CONSTITUTION:For both sides of the peripheral surface of a rotating body 17, opposing flanges in a shorter distance than the width of an endless belt 20 are provided. Therefore, when the endless belt 20 is wound around the peripheral surface of the rotating body 17, the endless belt is belt in the U shape, and, therefore, it can be prevented that the toner goes round between the periphery of the rotating body 17 and the endless belt 20 and the driving power of the endless belt 20 becomes unworkable. The conveying section 20a of the endless belt 20 is guided by a guide member 31 to be fixed to the inside of the case 30. This guide member 31 is also arranged in the shape of a trough, and the toner can reach the developing device 4 without being shaken off. |
