Patent ID: 7957681

Claim:
A developing device comprising: a developing container in which a developer including toner is contained; a developer carrying member for carrying the developer and feeding the developer by rotation thereof to a developing zone in which said developer carrying member opposes an image bearing member on which a latent image is formed and develops the latent image with the developer; and an electrode, disposed opposed to said developer carrying member, to which a bias for forming an electric field for moving the developer including regular-charge toner in said developer container toward said developer carrying member is to be applied, wherein said electrode is disposed downstream of the developing zone with respect to a rotational direction of said developer carrying member and is disposed vertically above said developer carrying member, and wherein at least a part of said electrode is disposed downstream of a rectilinear line connecting a rotation center and top point of said developer carrying member with respect to the rotational direction of said developer carrying member.