| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device in which a toner scattering that is often generated in a part opened to the atmospheric pressure by air current rotated with the rotating movement of a developing sleeve or a photoreceptor by viscosity of air can be suppressed. SOLUTION: In the device, an opening is provided on the wall surface of a bottom developing case 3 and a filter member 24 is provided between an exterior part of the case since developer that is recovered inside a developing unit after developing is separated from the developing sleeve 1 due to repulsing magnetic field generated by the developing sleeve 1 and merged with the developer at an agitating and carrying part where a screw 4 is rotated along the wall surface of the bottom developing case 3. |
