Toner control system

Details Toner control system Toner control system

1981-08-27

1986-04-01

Bartuska, F. J.

Dispensing

Automatic control

Delivery from source controlled by quantity in discharging...

222DIG1, 250225, 250565, 250575, G03G 1500

Patent

active

045792534

ABSTRACT:
An improved toner control system having a pair of matched photosensitive devices connected in series and receiving equal amounts of light, wherein one device responds to light transmitted through the toner-containing developer and the other device responds to light transmitted through an adjustable aperture or attenuator.

REFERENCES:
patent: 2073223 (1937-03-01), Rose
patent: 2423320 (1947-07-01), Hurley
patent: 3233781 (1966-02-01), Grubbs
patent: 3617757 (1971-11-01), Burr et al.
patent: 3635373 (1972-01-01), Kuhl et al.
patent: 3745348 (1973-07-01), Kummeke
patent: 4222497 (1980-09-01), Lloyd et al.

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