| 摘要 |
PROBLEM TO BE SOLVED: To provide a developer replenishing device capable of preventing a defect such as the scattering of developer to the outside of the device, maldistribution, clogging and the sticking of the developer in a circulation carrying path or the unstable detection of a developer residual amount sensor. SOLUTION: The developer is made to circulate in a plurality of temporary storage spaces for stably supplying the developer by a spiral screw using a partially perforated blade, and a plane part is provided at one end of the spiral screw and a replenishing port for a developing device is provided on the outside of the circulation path, then a flexible member is provided at a part of the screw for the purpose of the stable detection of a material detection sensor. |
