Developing apparatus for an image forming apparatus

Details Developing apparatus for an image forming apparatus Developing apparatus for an image forming apparatus

1989-10-23

1991-02-19

Grimley, Arthur T.

Photocopying

Contact printing

Light boxes

222DIG1, 355245, 355259, G03G 1509

Patent

active

049938290

ABSTRACT:
A developing apparatus including a developer housing for holding a two-component type developer including toner and a carrier, and a toner housing holding toner to be used to replenish the developer. The developer housing and toner housing are interconnected by a passageway shaped so that toner supplied to the developing housing and the developer contained therein form an interface adjacent to the passageway, in the developer housing. By so shaping the passageway, the amount of toner added to the developer can be adequately controlled, without the use of regulating devices.

REFERENCES:
patent: 3981272 (1976-09-01), Smith et al.
patent: 4601259 (1986-07-01), Yamashita
patent: 4705394 (1987-11-01), Watanabe
patent: 4721982 (1988-01-01), Ueda

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