Particle level indicator

Details Particle level indicator Particle level indicator

1981-11-19

1987-07-28

Prescott, A. C.

Photocopying

Including fiber optics

355 14D, 118653, 118688, G03G 1508

Patent

active

046828745

ABSTRACT:
An apparatus which detects when particles being dispensed into a development system have been depleted and provides a display of that condition. The apparatus advances particles from a store thereof to the development system. A detector, associated with the particle advancer, senses the exhaustion of particles being advanced to the development system.

REFERENCES:
patent: 3659556 (1972-05-01), Mutschler
patent: 3896279 (1975-07-01), Sugawara
patent: 3920154 (1975-11-01), Sugawara
patent: 4155638 (1979-05-01), Blitzer
patent: 4176941 (1979-12-01), Breitenkam et al.
patent: 4241696 (1980-12-01), Huzii
patent: 4341461 (1982-07-01), Fantozzi
patent: 4343548 (1982-08-01), Bares et al.

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