Image Forming Apparatus and Toner Cartridge

摘要

An image forming apparatus includes a photosensitive drum, a developing device including a developing roller and a developing frame including a toner receiving port, and a toner cartridge including a toner accommodation part and a conveyance device configured to convey toner from the toner accommodation part toward the developing device. The conveyance device includes a coupling tube and a shutter. The coupling tube includes a toner supply port faceable the toner receiving port, is coupleable to the developing device and is movable with respect to the toner accommodation part at a state where the coupling tube is coupled to the developing device and the toner supply port faces the toner receiving port. The shutter is movable between an opening position at which the toner supply port is opened with the coupling tube being coupled to the developing device and a closed position.

主权项

1. An image forming apparatus comprising:
a photosensitive drum; a developing device comprising a developing roller and a developing frame, the developing frame comprising a toner receiving port; and a toner cartridge comprising:
a toner accommodation part; anda conveyance device configured to convey toner from the toner accommodation part toward the developing device, the conveyance device comprising:
a coupling tube comprising a toner supply port and configured to be coupled to the developing device, the toner supply port being configured to face the toner receiving port with the coupling tube being coupled to the developing device, the coupling tube being movable with respect to the tonner accommodation part at a state where the coupling tube is coupled to the developing device and the toner supply port faces the toner receiving port; anda shutter configured to move between an opening position and a closed position, the opening position being a position at which the toner supply port is opened with the coupling tube being coupled to the developing device, the closed position being a position at which the toner supply port is closed with the coupling of the coupling tube to the developing device being released.