Patent ID: 8594540
Filing Date: 2013-11-26
Classification: G03G

Abstract:
1. A development device to develop an electrostatic latent image formed on a latent image carrier, the development device comprising: a developer container for containing toner; a toner carrier disposed facing the latent image carrier, the toner carrier including a first group of electrodes and a second group of electrodes that together form a capacitor; a toner supplier disposed in the developer container, to supply the toner to a surface of the toner carrier; an electrical field generator to generate an electrical field for causing the toner to hop along the surface of the toner carrier, the electrical field generator including: the first group of electrodes connected between the first and second switching elements of the positive-phase pulse voltage generation circuit, and the second group of electrodes connected between the third and fourth switching elements of the negative-phase pulse voltage generation circuit, thus forming a bridge configuration, wherein, when the positive-phase pulse voltage is applied to the first group of electrodes, the first and fourth switching elements are turned on, and, when the negative-phase pulse voltage is applied to the second group of electrodes, the second and third switching elements are turned on.