Waste toner conveying apparatus

Details Waste toner conveying apparatus Waste toner conveying apparatus

1990-06-29

1992-05-12

Grimley, A. T.

Photocopying

Contact printing

Light boxes

198674, 222DIG1, G03G 2100

Patent

active

051132273

ABSTRACT:
A waste toner conveyer of an image forming apparatus has a screw for conveying powdery toner along a toner conveying passage defined in the conveyer. The screw includes a plurality of strip-like spring members which are reciprocally moved along a longitudinal direction of the waste toner conveyer. The screw is secured to a rotary shaft. A pin fixed to the shaft rotates and slides along an irregular surface of a cam so as to reciprocate the screw horizontally during the rotation of the shaft. Accordingly, waste toner is shaken from the screw by an extension and retraction of the screw along the longitudinal axis so that such waste toner can fall through a waste toner outlet.

REFERENCES:
patent: 2541742 (1951-02-01), Booth
patent: 4218126 (1980-08-01), Takeichi
patent: 4826361 (1989-05-01), Merz
patent: 4943830 (1990-07-01), Sulenski
patent: 4958196 (1990-09-01), Fujii et al.

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