Patent ID: 7899368

Claim:
A development device, comprising: a developer carrying member configured to rotate while bearing thereon a two-component developer including a magnetic carrier and a toner, and configured to supply the toner to a latent image on a surface of a latent image carrier in a development region, in which the developer carrying member faces the latent image carrier; a developer supply conveyance path including a developer supply conveyance member supplying the two-component developer to the developer carrying member and not receiving the two-component developer from the developer carrying member, the developer supply conveyance path conveying the two-component developer in a first direction; and a developer collection conveyance path including a developer collection conveyance member configured to collect a developer from the developer carrying member after the developer is passed through the development region, and conveying the collected developer in the first direction; and a developer agitation conveyance path including a developer agitation conveyance member configured to receive an excess developer unused for development and the collected developer and configured to convey the excess developer and the collected developer in a second direction opposite to the first direction while agitating the developers, the developer agitation conveyance path supplying the agitated developers to the developer supply conveyance path.