Image forming apparatus provided with automatic toner exhausting

Details Image forming apparatus provided with automatic toner exhausting Image forming apparatus provided with automatic toner exhausting

1992-07-22

1993-08-17

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355208, 355245, G03B 2100

Patent

active

052373738

ABSTRACT:
An image forming apparatus provides a mechanism for exhausting waste toner or developing powder and is constructed to have a sensor for sensing an amount of waste toner in a recovery vessel when the developing powder is sensed to be degraded and a determining unit for determining if the carried developing powder is overflown from the recovery vessel based on the sensed result. If it is determined that it is not overflown, the developing powder is recovered in the recovery vessel. Further, the unit for continuing the formation of an image is also provided. If the recovery vessel may provide a spared space for the waste toner after the developing powder is recovered in the recovery vessel, the formation of the image is continued.

REFERENCES:
patent: 4325628 (1982-04-01), Torigai et al.
patent: 4436414 (1984-03-01), Kamiyama et al.
patent: 4625895 (1986-12-01), Tsukano
patent: 4629309 (1986-12-01), Tsukano et al.
patent: 4982231 (1991-01-01), Matsuuchi

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