Electrostatic image toning mechanism

Details Electrostatic image toning mechanism Electrostatic image toning mechanism

1987-10-15

1988-10-04

Grimley, A. T.

Photocopying

Including fiber optics

355 4, 118645, 118657, G03G 1500, G03G 1501, G03G 1509

Patent

active

047758759

ABSTRACT:
A mechanism for toning electrostatic images has two storage means for developer containing toner of different characteristics, for example, different colors. A rotational applicator rotates in one direction to transport developer from one storage, past the other storage, to a development zone and back to the storage. The applicator moves in the opposite direction to similarly transport developer from the other storage. A shield blocks the unused storage means in each mode. By transporting developer past the unused storage means on the way to the development zone, the developer can simply fall into the appropriate storage means on leaving the development zone.

REFERENCES:
patent: 4264185 (1981-04-01), Ohta
patent: 4398817 (1983-08-01), Nishimura et al.
patent: 4452173 (1984-06-01), Tabuchi et al.
patent: 4533229 (1985-08-01), Lu
patent: 4639124 (1987-01-01), Nye, Jr. et al.
patent: 4714046 (1987-08-01), Steele et al.

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