Patent ID: 8095037
Filing Date: 2012-01-10
Classification: G03G,H01T

Abstract:
1. A corona wire cartridge comprising: a reel around which a corona wire is wound and to which an end of the corona wire is held; a reel holder that rotatably supports the reel; a casing including a receiving portion which receives the reel and the reel holder and a wire drawing opening through which the corona wire is drawn; and an elastic member that movably connects the casing to the reel holder, wherein the reel holder is slidably movable in an extending direction of the corona wire, wherein the elastic member biases the reel holder in an opposite direction to a sliding direction of the reel holder so as to give a tension to the corona wire in a state where the corona wire is drawn from the casing, and wherein the receiving portion includes a curved surface formed to support the reel biased by the elastic member in a state where the corona wire is not drawn from the casing.