| 摘要 |
PURPOSE:To simplify the titled developing device by mounting a passage forming plate for forming a developer recovering passage along the bottom plate of a box on the outside of the bottom plate and using the fron end side and back end side as an insulating plate and a conductive plate respectively. CONSTITUTION:A developer recovering passage 8 of which both ends are opened by a passage forming plate 7 is formed on the outside of the bottom plate 1a of a box. The front end side and back end side of the passage forming plate 7 are used as an insulating plate and a conductive plate respectively. Consequently the scattering developer is led into the developer recovering passage 8 by air flow generated in the periphery of an image holding element 6. Moreover, the passage forming palte 7a around the inlet of the passage is insulated, so that the developer is moved smoothly to the opened back end side without staying aroung the inlet. In the invented developing device, the passage forming plate is mounted on the outside of the bottom plate of the box along the bottom plate to form the developer recovering passage, extremely simplifying its constitution. |
