| 摘要 |
PROBLEM TO BE SOLVED: To provide a developing device which can obtain a high-quality image suitable for a high-speed print processing, is free from toner leakage and uses a two-component developer. SOLUTION: A first electrode member 43, a first developer carrier 41, a second developer carrier 42, and a second electrode member 44 are disposed in order from an upstream side in proximity to a rotating photoreceptor 1, and the first developer carrier 41 is rotated in a forward direction, and the second developer carrier 42 is rotated in the opposite direction, and a developing bias where a DC voltage and an AC voltage are superposed is applied to the developer carriers 41 and 42, and a control voltage is applied to electrode members 43 and 44. COPYRIGHT: (C)2006,JPO&NCIPI |
