| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device of a cleanerless system capable of keeping the electrifying capability of an electrifier normal even in long term use. SOLUTION: A pre-electrification mixture agent tm1, in which developer (t) and electrification acceleration particles (m) are mixed, is stored in a developing container 5d, and a replenishment mixture agent tm2 is stored in a hopper container 5g connected to the developing container 5d. The speed at which the electrification acceleration particles (m) are transferred from a pre- development mixture agent tm1 to a photoreceptive drum 1 is kept constant, the electrification acceleration particles (m) are steadily supplied without causing excess of supply or insufficiency of supply, and an electrification characteristics is maintained. |
