| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device and an image forming device, capable of obtaining stably a proper charge amount even by toner after duration, by regulating not only a pressure contact force to a developing roller of a regulation member but also a pressure contact force to a static elimination member, by simple constitution. SOLUTION: This developing device 23 has the developing roller 32, a supply roller 33, the regulation member 34 for regulating a layer thickness of the toner on the developing roller 32, and the static elimination member 35 for static eliminating the toner. The developing device 23 has further an interaxial distance maintaining member for keeping a constant distance between an axis of the developing roller 32 and a photoreceptor 20, and a developing roller moving member for moving a position of the axis of the developing roller 32 within a range regulated by the interaxial distance maintaining member. The developing roller moving member makes the position of the axis of the developing roller 32 to be distant from the regulation member 34 and to be near to the static elimination member 35, in a toner easily chargeable situation, and makes the position to be near to the regulation member 34 and to be distant from the static elimination member 35, in a toner hardly chargeable situation. COPYRIGHT: (C)2009,JPO&INPIT |
