Toner dispensing and supply arrangement

Details Toner dispensing and supply arrangement Toner dispensing and supply arrangement

1977-05-31

1979-03-06

Rolla, Joseph J.

Dispensing

With discharge assistant

With bypass or return to supply

222DIG1, G03G 1508

Patent

active

041426550

ABSTRACT:
A dispensing hopper within the xerographic machine arranged to support a quantity of finely divided particulate material. The hopper is provided with a first reservoir with a dispensing opening through which the material is dispensed to a developer sump. A cylindrical dispensing roll or other control device is rotatably suported in the first reservoir in or adjacent the dispensing opening and the dispensing roll is rotated sequentially through the material in the first reservoir and past the dispensing opening to dispense toner into the developer chamber. The dispenser also includes a second reservoir adjacent the first reservoir into which toner in excess of a preselected amount is directed. A remote toner container is coupled to the dispensing hopper by a closed loop transport arrangement consisting of a first transport which continuously delivers toner from the remote container to the first reservoir at a rate in excess of that dispensed to the developer chamber, the excess toner falling into the second reservoir. A second transport removes toner from the second reservoir back to the remote toner supply container.

REFERENCES:
patent: 3244325 (1966-04-01), Lindquist
patent: 3550792 (1970-12-01), Stowell
patent: 3726392 (1973-04-01), Rastoin
patent: 3954331 (1976-05-01), Smith
Jendrick, "Toner Dispenser"; Xerox Disclosure Journal, vol. 1, No. 1, Jan. 1976.

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