Dry developing mechanism

Details Dry developing mechanism Dry developing mechanism

1975-02-13

1977-01-25

Tollberg, Stanley H.

Dispensing

With recorder, register, indicator, signal or exhibitor

Position or extent of motion indicator

222404, B67D 522

Patent

active

040047148

ABSTRACT:
A dry developing apparatus equipped with a developer amount detector, includes a container in which the developer is contained, a rotational member for agitating or carrying the developer, a support for supporting the rotational member in such a way that the rotational member, when rotated, is displaceable axially under the force of the load resistance produced by the presence of the developer, a holder for holding the rotational member so as to cause the member to return in the direction opposite to the direction of the displacement when the lead resistance is lessened with decrease of the developer, and a detector for detecting the difference in the amount of the axial displacement of the rotational member.

REFERENCES:
patent: 1813519 (1931-07-01), Varusky
patent: 3366276 (1968-01-01), Fridley
patent: 3581517 (1971-06-01), Pizzi

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