Patent ID: 7962071

Claim:
A developing device, comprising: a developer carrier, configured to rotate while carrying a developer on a surface thereof, supplies a toner to a latent image on a surface of a latent image carrier at a section where the developer carrier faces the latent image carrier, and develops the latent image; a developer conveyance path, which has a developer conveying member conveying the developer, and conveys the developer while supplying the developer to the developer carrier in a developer supply region in which the developer is supplied to the developer carrier; a developer replenishing device configured to replenish the developer to the developer conveyance path; a developer discharge port which is provided in the developer conveyance path and which discharges the developer to the outside of the developing device, at a predetermined height level of a position in which the bulk of the developer increases or decreases as the amount of developer within the entire developer conveyance path increases or decreases; and a scattered developer discharge prevention member blocking a path along which the developer, scattered as a result of a conveyance operation of the developer conveying member, moves toward the developer discharge port.