Patent ID: 9037020
Filing Date: 2015-05-19
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a toner carrying member for carrying a toner; an image carrying member on which a toner image is formed with the toner; a plurality of divided electrode portions arranged along a direction which crosses a movement direction of said image carrying member and provided at a position in which said electrode portions oppose said toner carrying member via said image carrying member interposed therebetween, wherein said electrode portions are supplied with a voltage on the basis of image information to move the toner between said toner carrying member and said image carrying member thereby to form the toner image; and a controller for variably controlling at least one of potential differences |Vp−Vt| and |Vt−V0| depending on the image information, where a potential of said toner carrying member is Vt, a potential of one of said electrode portions for forming an image portion is Vp, and a potential of another of said electrode portions for forming a non-image portion adjacent to said one electrode portion for forming the image portion is V0.