Developing device of image forming apparatus

摘要

A developing device includes a feed tool to feed a developer to a developing tool, a developer receiving chamber in which the developer to be fed to the feed tool is received, and a first delivery unit and a second delivery unit arranged one one higher than another in a state in which the developing device is mounted in the image forming apparatus. The developer received in the developer receiving chamber is delivered to the second delivery unit by the first delivery unit and thereafter, is delivered to the feed tool by the second delivery unit.