| 摘要 |
PURPOSE:To such surely the scattered developer by providing a suction port which opens to the upper stream side and down stream side in the moving direction of a supply member which supplies the developer to a part to be developed and sucks the scattered developer. CONSTITUTION:A bottom cover 11 which forms the 1st duct 10 for sucking the developer 4 scattered from the inside of a case 1 to the outside is disposed to the bottom of the case 1 and a suction port 12 is positioned to face a photosensitive drum 2 in the lower part of a developing region. An upper cover 12 for preventing the scattering of the developer 4 from a magnet roller 6 is attachably and detachably attached to the side plate of the case 1 in the upper part of the case 1. The 2nd duct 16 for sucking the scattered developer 4 is formed between the upper part of the cover 13 and a cover 17 and a suction port is positioned to face between the magnet roller 6 and the cover 17. |
