Patent ID: 8311462
Filing Date: 2012-11-13
Classification: G03G

Abstract:
1. A developer supply device, comprising: a developer holding body having a cylindrical developer holding surface and a rotation axis extending in a main scanning direction so that, by rotating about the rotation axis, the developer holding surface moves in a direction perpendicular to the main scanning direction and a developer held on the developer holding surface is carried to a developer supply position where the developer holding surface faces a supply target; a developer amount limiting member that limits an amount of the developer held on the developer holding surface by contacting the developer holding surface on an upstream side in a moving direction of the developer holding surface with respect to the developer supply position; and a carrying substrate that carries the developer from a developer reservoir to the developer holding body through a traveling electric field, wherein the carrying substrate faces the developer holding surface at a developer holding position where the developer is held on the developer holding surface, the developer amount limiting member being located at a position lower than the developer holding position, and wherein a position to which the developer scraped off the developer holding surface by the developer amount limiting member falls is different from the developer holding position.