Patent ID: 8275276
Filing Date: 2012-09-25
Classification: G03G

Abstract:
1. An image forming device comprising: a photosensitive member; a charger that charges the photosensitive member at a charging position; an exposing unit that exposes the photosensitive member to light and forms an electrostatic latent image on the photosensitive member; a developing unit that develops the electrostatic latent image formed on the photosensitive member at a developing position, the developing unit having a developing member that carries developer thereon, the developing member having a surface potential, the developer being charged to a polarity; and a control unit that controls the charger so that a first voltage having a first absolute value and a second voltage having a second absolute value are selectively applied to the charger, the first absolute value being greater than the second absolute value, the surface potential of the developing member having a third absolute value smaller than the second absolute value, the control unit applying the first voltage to the charger at least during development while applying the second voltage to the charger during operations other than development, the first voltage, the second voltage and the surface potential having a polarity same as the polarity of the developer.