Patent ID: 8385789
Filing Date: 2013-02-26
Classification: G03G

Abstract:
1. A development device for supplying a developer to an image holding body, comprising: a casing; a developer reservoir formed at a bottom part of the casing to store the developer; a developer supply chamber different from the casing and configured to accommodate the developer; a developer holding body that is a roller-like member rotatable about a rotation axis extending in a width direction of the casing and that is located on an upper side of the developer reservoir in the casing such that an outer circumferential surface of the developer holding body is positioned to face the image holding body; a first carry member provided in the developer supply chamber, extended in the width direction of the casing and configured to carry the developer in the width direction in which the rotation axis of the developer holding body extends, the first carry member being configured to supply the developer to the developer reservoir; a second carry member provided on a casing side, extended in the width direction of the casing and configured to carry the developer in the width direction in which the rotation axis of the developer holding body extends; and a carry substrate provided in the casing, the carry substrate including a plurality of carrying electrodes configured to generate an electric field by application of a voltage such that the developer is carried from the developer reservoir to a position facing the developer holding body.