Image forming apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsShougo Sato, Miho Ishida
Life of this patent
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Abstract
In an image forming apparatus, a drum cartridge includes a photosensitive drum, a developing device, a drum cleaner, a waste toner tube, and a flange. The waste toner tube includes a first end portion communicating with the drum cleaner and a second end portion connected to the flange. The developing device includes a protruding portion facing the flange. The cushion member is located between the flange and the protruding portion. The cushion member allows a cartridge mounting part of the developing device to move with respect to the flange in a case where the developing device moves with respect to the photosensitive drum.
Claims9
An image forming apparatus comprising:
- a main body housing;
- a drum cartridge capable of being mounted to the main body housing, the drum cartridge including:
- a photosensitive drum rotatable about an axis extending in a first direction;
- and
- a developing device including a developing roller and a developing housing supporting the developing roller;
- a toner cartridge capable of accommodating toner that is supplied to the developing housing, the toner cartridge capable of being mounted to the drum cartridge;
- and
- a transfer device located above the photosensitive drum in a state where the drum cartridge is mounted to the main body housing, and configured to transfer the toner on the photosensitive drum to a sheet,
- wherein the developing housing includes:
- a toner acceptance port,
- wherein the toner cartridge includes:
- a cartridge housing capable of accommodating the toner, the cartridge housing having a toner discharge port;
- and
- a rotatable agitator located in the cartridge housing, the agitator including:
- a shaft;
- and a blade rotatable together with the shaft, the blade having a first end fixed to the shaft and a second end located apart from the first end,
- wherein in a state where the toner cartridge is mounted to the drum cartridge, the toner discharge port communicates with the toner acceptance port, and
- wherein in the state where the toner cartridge is mounted to the drum cartridge, in a case where the agitator rotates, the second end of the blade is capable of protruding from the toner discharge port.
Dependencies are inferred from the claim text.