| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a developing device capable of forming an image of high quality over a long period while preventing the deterioration of developer by reducing mechanical stress loaded on the developer and surely electrifying the developer. <P>SOLUTION: Regarding the image forming apparatus equipped with the developing device 6 including a developer carrier 6c that holds and carries non-magnetic one-component developer, and a supply member 6d for supplying the developer to the developer carrier 6c, a recovery member 6f for recovering the developer from the developer carrier 6c is provided, and a conductive electrode member 6e coming in soft contact with the supply member 6d is provided, and also, a control means is provided, The control means formed a DC electrical field directed to move the developer on the outer peripheral surface of the supply member 6d toward the developer carrier 6c between the developer carrier 6c and the supply member 6d, and also, varies the level of the DC electrical field, and also, the control means forms a DC electrical field directed to press the developer against the outer peripheral surface of the supply member 6d between the supply member 6d and the electrode member 6e, and also, varies the level of the DC electrical field. <P>COPYRIGHT: (C)2007,JPO&INPIT |
