Developing apparatus

Details Developing apparatus Developing apparatus

1984-10-15

1986-12-30

Grimley, Arthur T.

Photocopying

Including fiber optics

355 14D, G03G 1500

Patent

active

046325344

ABSTRACT:
A developing apparatus is provided with a developing roller disposed in a casing and carrying a toner on the surface thereof, and a detecting mechanism adapted to detect the amount of the toner in the casing and to deliver an empty signal when the casing is emptied of the toner. The detecting mechanism includes a lever rockable within a vertical plane in the casing and has an elongate body, and a detecting section which is wider than the elongate body and disposed at the distal end to the elongate body to engage the surface of the toner stored in the casing. The lever is adapted to hang by gravity in accordance with the amount of the toner.

REFERENCES:
patent: 3982830 (1976-09-01), Daniels et al.
patent: 4074246 (1978-02-01), Conklin et al.
patent: 4155638 (1979-05-01), Blitzer

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