| 摘要 |
PURPOSE:To prevent a developer from scattering when supplied by reducing the size of the opening of a developing container inwardly and providing an inner lid which forms a slit opening smaller than said opening nearby an opening for supply. CONSTITUTION:When toner is supplied, part of a supplementary developer container 31 is cut and opened and the container is turned over to supply toner into the developing container. The inner lid 16 is provided to prevent the falling toner from scattering as shown by a dotted-line arrow, and its slit opening is formed in a funnel shape. Consequently, the toner is easily supplied and the scattering toner moves around as shown by an arrow S and never leaks out. Further, the slit part is formed in the funnel shape, so toner falling on a slanting surface is easy to fall in the developing container. |
