Developer collection device for a copying machine

Details Developer collection device for a copying machine Developer collection device for a copying machine

1979-04-02

1980-08-19

Braun, Fred L.

Photocopying

Including fiber optics

222DIG1, 222413, 340615, 340617, G03G 1500, G03G 2100, G08B 2100

Patent

active

042181267

ABSTRACT:
A shaft with a spiral blade is supported in a receptacle for receiving a developer removed from the surface of a photosensitive drum. The developer is conveyed toward a collection box during the rotation and movement of the shaft. When an excess load is applied to a screw shaft due to an overflow or blockage of the developer, the shaft is moved in a direction opposite to that in which the developer is conveyed, causing it to abut against a sensor to permit the sensor to be rendered ON.

REFERENCES:
patent: 3572923 (1971-03-01), Fisher et al.
patent: 4030824 (1977-06-01), Smith
patent: 4172303 (1979-10-01), Wooding et al.

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