Two component developing apparatus in a printer

Details Two component developing apparatus in a printer Two component developing apparatus in a printer

1992-12-11

1994-10-04

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355208, G03G 2100

Patent

active

053531027

ABSTRACT:
A two component developing apparatus includes a container (2a), a developing agent conveying means (20) for conveying a two component developing agent consisting of toner and carrier to an image carrier (1) from the container (2a), a mixing device (21, 22) for mixing the toner and the carrier in a toner storage section (28) of the container (2a), and a toner supplier (25) for supplying the toner in the toner storage (28) into the container (2a). The toner supplier (25) includes a toner supplying rollers (26, 27) which can vary a flow of toner per unit time and a controller (44) for controlling the supplying rollers (26, 27) on the basis of the detected flow of toner. The flow of toner per unit time at the supplying rollers (26, 27) is controlled on the basis of a consumption rate of toner. The toner supplying rollers may have cells or holes on their surface.

REFERENCES:
patent: 4237943 (1980-12-01), Ermel et al.
patent: 4615606 (1986-10-01), Nishikawa
patent: 4751484 (1988-06-01), Matsumoto et al.
patent: 5036363 (1991-07-01), Iida et al.
patent: 5202769 (1993-04-01), Suzuki

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