| 摘要 |
A developing device includes a cabinet, a developer carrier, a transport member rotating around a transport member shaft, and a developer cartridge attachable to and detachable from the cabinet. The developer cartridge includes a cartridge side first opening and a cartridge side second opening. The cabinet includes a cabinet side first opening located in a position opposed to the cartridge side first opening and a cabinet side second opening located in a position opposed to the cartridge side second opening. The cartridge side first opening, the cartridge side second opening, the cabinet side first opening and the cabinet side second opening extend in a vertical direction. The transport member transports a developer from the cabinet side first opening to the cabinet side second opening. A lower end of the cabinet side second opening is located upper than a center of the transport member shaft in the vertical direction.
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