Developer replenishing container

摘要

A developer-replenishing container having a cylindrical container body holding a developer, a front bottleneck for output of the developer, a tubular front extension axially connected between the container body and the front bottleneck, smooth developer guide wall portions and oblique developer guide wall portions alternatively arranged in a spiral series inside the container body and the tubular front extension and adapted to guide the developer toward the front bottleneck without causing a laminar flow.