Method for controlling toner concentration

Details Method for controlling toner concentration Method for controlling toner concentration

1980-05-28

1982-12-28

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Methods

355140, G03G 1500, G03G 2732

Patent

active

043658946

ABSTRACT:
A method of controlling toner concentration in an electrophotographic recording apparatus includes placement of a reference image in the form of a density pattern on the electrostatic member preceding or following an information image thereon. Photoelectric sensing of this pattern controls selective addition of toner to the developer and variation in the pattern to maintain a predetermined concentration of toner therein in accordance with the sensed density of the developed reference image. The pattern is preferably in the form of pulses to avoid edge effects.

REFERENCES:
patent: 2956487 (1960-10-01), Giaimo
patent: 3045644 (1962-07-01), Schwertz
patent: 3348521 (1967-10-01), Hawk
patent: 3348523 (1967-10-01), Davidson et al.
patent: 3360652 (1967-12-01), Bernous
patent: 3801196 (1974-04-01), Knapp et al.
patent: 4026642 (1977-05-01), Tanaka et al.
patent: 4050806 (1977-09-01), Miyakawa et al.
patent: 4166691 (1979-09-01), Ebi et al.
patent: 4215930 (1980-08-01), Miyakawa et al.
patent: 4239372 (1980-12-01), Iwai

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