Toner recovery device

Details Toner recovery device Toner recovery device

1986-10-16

1987-12-08

Moses, R. L.

Photocopying

Including fiber optics

355 15, 355 3DD, 118652, G03G 1500, G03G 2100

Patent

active

047115610

ABSTRACT:
A toner fill sensor for a toner recovery device with a recovery box into which residual toner is scraped from the latent image carrying member with a cleaning means, has a window comprising a transparent or translucent housing projecting upwardly through said recovery box; an optical sensor having a light emitting and receiving elements arranged across said projected housing; a flat float member vertically movable on top of the toner recovered in the recovery box; and a light shielding flag erected on said float member at the position corresponding to the projected housing so that as the level of toner recovered rises, the light shield of the float member blocks the light path of the optical sensor, providing a toner fill signal.

REFERENCES:
patent: 3838472 (1974-10-01), Oriel
patent: 4251155 (1981-02-01), Schnall et al.
patent: 4436414 (1984-03-01), Kamiyama et al.

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