| 摘要 |
PROBLEM TO BE SOLVED: To form a satisfactory image by preventing a decrease in the amount that toner on double rollers is electrified, and filming. SOLUTION: In a developing device 3a consisting of a first roller 5 for carrying a developer stored in a container, a blade 12 for electrifying the developer 8 on the first roller 5 to a specific polarity and for restricting the amount that the developer 8 is carried and a second roller 6 opposite to the first roller 5 for receiving the developer 8 on the first roller 5 and for carrying the developer 8 while holding the developer 8 on its peripheral face to provide, the developer 8 for development, a developer recovery means (5, V1') is provided for recovering the developer 8 from the second roller 6 when the development is not carried out. |
