Developing device including a developer feeding member having a rotary shaft, a first transport blade for stirring and transporting developer, a blocking portion for blocking the developer, a paddle extending parallel to the rotary shaft, and a second transport blade for transporting the developer in the opposite direction to the first transport blade, and image forming apparatus therewith

Abstract

A developing device includes first and second stirring/transporting members, a developer feeding member, and a developer container that accommodates those components. The first and second stirring/transporting members stir and transport developer. The developer feeding member feeds developer to the first stirring/transporting member. In the developer container, a feeding port through which developer is fed from the developer feeding member to the first stirring/transporting member is formed. The developer feeding member includes a rotary shaft, a first transport blade which stirs and transports developer, a blocking portion which protrudes substantially perpendicularly to the rotary shaft and blocks the developer transported by the first transport blade in a first direction, and a paddle which feeds the developer from a developer supply passage to a first transport chamber.