Image forming apparatus having a function for recycling collecte

Details Image forming apparatus having a function for recycling collecte Image forming apparatus having a function for recycling collecte

1999-08-24

2000-12-26

Pendegrass, Joan

Electrophotography

Control of electrophotography process

Control of developing

399 66, 399359, 399360, G03G 1508, G03G 2110

Patent

active

061672114

ABSTRACT:
In an image forming apparatus and a controlling method thereof, the image forming apparatus comprises conveyer mechanisms for conveying collected toner to a waste part or a recycling part, and a controller for controlling the conveyer mechanism and a developer supplying device according to image forming conditions. When the image forming condition exceeds a predetermined reference level, the controller decreases a recycling rate of the collected toner. If the recycling rate becomes high as a result of the controlling, the controller decreases an amount of supplying the developer so as to lower toner density. Thus, reference toner density in the developer is controlled, thereby, high quality images can be maintained, and the controller can be simplified.

REFERENCES:
patent: 5028959 (1991-07-01), Gooray
patent: 5493382 (1996-02-01), Takagaki et al.
patent: 5521690 (1996-05-01), Taffler et al.
patent: 5604575 (1997-02-01), Takagaki et al.
patent: 5604576 (1997-02-01), Inoue et al.

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