Developing apparatus having improved agitation effect
AssigneeRicoh Company, Ltd.
InventorsNobuo Iwata, Satoshi Muramatsu, Nobutaka Takeuchi, Junichi Matsumoto, Takayuki Koike
Life of this patent
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Abstract
A developing apparatus for use in an image forming apparatus includes a developing roller, a developing agent, a refilling port, a transport member, and an agitation enhancer. The developing agent includes toner particles and carrier particles and is refilled to the developing apparatus from the refilling port. The transport member transports the developing agent to the developing roller while agitating the developing agent. The agitation enhancer is provided on a peripheral portion of the transport member to increase agitation movement of the developing agent.
Claims20
A developing apparatus for use in an image forming apparatus, comprising;
- a developing roller;
- a developing agent including toner particles and carrier particles;
- a refilling port, through which the toner particles are refilled in the developing apparatus;
- at least one transport member configured to transport the developing agent to the developing roller while agitating the developing agent;
- and
- an agitation enhancer, provided on a periphery of the transport member, configured to increase an agitation movement of the developing agent.
A process cartridge for use in an image forming apparatus, comprising:
- a photosensitive member configured to form an electrostatic latent image;
- and
- a developing apparatus configured to develop the electrostatic latent image, comprising:
- a developing roller;
- a developing agent including toner particles and carrier particles;
- a refilling port, through which the toner particles are refilled in the developing apparatus;
- at least one transport member configured to transport the developing agent to the developing roller while agitating the developing agent;
- and
- an agitation enhancer, provided on a peripheral portion of the transport member, configured to increase agitation movement of the developing agent.
An image forming apparatus, comprising:
- a process cartridge, comprising:
- a photosensitive member configured to form an electrostatic latent image;
- and
- a developing apparatus configured to develop the electrostatic latent image, comprising:
- a developing roller;
- a developing agent including toner particles and carrier particles;
- a refilling port, through which the toner particles are refilled in the developing apparatus;
- at least one transport member configured to transport the developing agent to the developing roller while agitating the developing agent;
- and
- an agitation enhancer, provided on a peripheral portion of the transport member, configured to increase agitation movement of the developing agent.
Dependencies are inferred from the claim text.