| 摘要 |
PROBLEM TO BE SOLVED: To provide a developer conveying device having a positive displacement pump that has excellent developer conveyability, and maintains power to convey developer and toner during the drive of the developer conveying device.SOLUTION: A developer conveying device 190 includes a developer storage unit 60 that stores a developer G used in an electrophotographic device 100, and a positive displacement pump 30 that generates a positive pressure and a negative pressure, in which the pump sucks the developer in the developer storage unit every one drive cycle to convey the developer to a downstream of the pump. The developer storage unit 60 includes plate-like rotating members 75a and 75b that stir the developer, and a developer discharge port 64 that is communicated with the pump at a position deviated from positions immediately below the rotation center axes 76 of the rotating members. |
