Controlling toner concentration of dry developing agent in elect

Details Controlling toner concentration of dry developing agent in elect Controlling toner concentration of dry developing agent in elect

1980-05-14

1982-12-21

Rubinson, Gene Z.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3DD, 118689, G03G 1509

Patent

active

043646590

ABSTRACT:
A method and a device for controlling a toner concentration of a dry developing agent used in an electrophotographic apparatus wherein an electrostatic latent image is developed by a dry developing agent including toner and magnetizable carrier used to be circulated, and wherein a toner is appropriately and timely supplied to the developing agent to maintain a toner concentration within a predetermined value. The developing agent is directed to flow on an inclined member disposed on a portion of a path of circulation of the developing agent, and when a depth of the flow of the developing agent on the inclined member is reduced below a predetermined value, the toner is supplied to the developing agent.

REFERENCES:
patent: 3892672 (1975-07-01), Gawron
patent: 3999687 (1976-12-01), Baer et al.
patent: 4168901 (1979-09-01), Ito et al.
patent: 4226525 (1980-10-01), Sakamoto et al.
patent: 4276854 (1981-07-01), Fujita et al.

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