Toner supply arrangement

Details Toner supply arrangement Toner supply arrangement

1990-03-06

1991-09-03

Grimley, A. T.

Photocopying

Contact printing

Light boxes

118653, 355209, 355260, G03G 1506

Patent

active

050458841

ABSTRACT:
A toner supply arrangement for use in a developing apparatus which includes a plurality of toner accommodating containers provided in the developing apparatus, a toner transport device for transporting toner accommodated in each of the plurality of toner accommodating containers to the developing apparatus, a driving unit for driving the toner transport device; a first toner detecting device for detecting presence or absence of toner accommodated in each of the plurality of toner accommodating containers, a cover member for selectively opening or closing an opening for each of the plurality of toner accommodating containers, an open/close detecting device for detecting opening or closing of the cover member, and a control device for actuating the first toner detecting means upon detection of the opening or closing of the cover member so as to apply a control signal to the driving unit according to result of detection of the toner detecting device.

REFERENCES:
patent: 4142655 (1979-03-01), Fantuzzo
patent: 4235194 (1980-11-01), Wada et al.
patent: 4370053 (1983-01-01), Hirayama et al.
patent: 4579443 (1986-04-01), Abuyama et al.
patent: 4602862 (1986-07-01), Wyble
patent: 4919071 (1990-04-01), Gatti

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