Patent ID: 9122198
Filing Date: 2015-09-01
Classification: G03G

Abstract:
1. A developing unit of an image forming apparatus comprising: a body defining a developing chamber and a developer accommodating chamber, the developing chamber being configured to accommodate a developing roller, and the developer accommodating chamber being configured to accommodate a developer and being connected to the developing chamber via a connection port, the body including a sliding portion, a restoring portion and a colliding portion at the developer accommodating chamber; and a developer delivery member arranged in the developer accommodating chamber and configured to rotate in a rotating direction so that the developer in the developer accommodating chamber is delivered to the developing chamber, the developer delivery member including an elastic member configured to be in sliding contact with the sliding portion while being curved elastically, configured to be restored elastically at the restoring portion, and configured to collide with the colliding portion, wherein the sliding portion, the restoring portion and the colliding portion are arranged along the rotating direction, the connection port is located on an upstream side of the colliding portion in the rotating direction, and the developer delivery member is configured so that the elastic member which has been elastically restored at the restoring portion is collided with the colliding portion to generate an air flow in a direction opposite the rotating direction and to deliver the developer in the developer accommodating chamber toward the connection port by the air flow in the direction opposite the rotating direction.