| 主权项 |
1. A developing device comprising:
a developer container including a first chamber and a second chamber arranged along a lateral direction, which crosses a gravitational direction, developer circulating through the first chamber and the second chamber; a transporting member rotatably disposed in the first chamber, the transporting member transporting the developer in a first direction extending along an axis of the transporting member; and a supply member rotatably disposed in the second chamber, the supply member having an outer diameter smaller than an outer diameter of the transporting member, the supply member supplying the developer to a developer holding member while transporting the developer in a direction opposite to the first direction, wherein a lower end position of the supply member and a lower end position of the transporting member in the gravitational direction are at the same level, and wherein, while the supply member and the transporting member are rotating, an upper surface of developer contained in the first chamber and an upper surface of developer contained in the second chamber are at levels not higher than an upper end position of the transporting member but not lower than an upper end position of the supply member in the gravitational direction. |
