Patent ID: 7599649
Filing Date: 2009-10-06
Classification: G03G

Abstract:
1. A development device configured to develop an electrostatic latent image on an image carrying member with a two-component developer including a toner and carrier, the development device comprising: a developer carrying member configured to carry the two-component developer to a development region in which the developer carrying member faces the image carrying member; a developer control member configured to control a volume of the two-component developer carried by the developer carrying member; a plurality of electrodes separately disposed one from another in a direction parallel to a rotation axis of the developer carrying member while separated from a surface of the developer carrying member and located between the developer control member and the development region in a rotation direction of the developer carrying member; and a power source configured to apply a power to the plurality of electrodes to form a periodically changing electric field generating an external force to convey the two-component developer in the rotation axis direction.