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

摘要

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.