Image forming apparatus including a two-stage toner supply syste

Details Image forming apparatus including a two-stage toner supply syste Image forming apparatus including a two-stage toner supply syste

1995-02-10

1997-07-29

Royer, William J.

Electrophotography

Control of electrophotography process

Control of developing

399 62, 399258, G03G 2100

Patent

active

056529473

ABSTRACT:
An image forming apparatus includes a developer container comprising toner particles and carrier particles. A developer carrying member is disposed in the developer container, for carrying the developer to a developing zone where an electrostatic latent image is developed. A first toner container contains toner particles, and a first supply mechanism supplies toner particles from the first toner container to the developer container in response to a toner supply signal, to maintain a ratio of toner particles to carrier particles constant. A second toner container contains toner particles, and a second supply mechanism supplies toner particles from the second toner container to the first toner container, to maintain the amount of toner particles in the first container constant.

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