Image forming apparatus and toner discharge control method

Details Image forming apparatus and toner discharge control method Image forming apparatus and toner discharge control method

2005-07-19

2005-07-19

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

06920302

ABSTRACT:
In an image forming apparatus having a plurality of developing devices, the timing for discharging toner in a developing device, in which toner of a previously formed toner image has mixed, is determined by comparing an integrated area of a toner image developed by an upstream-side developing device and an integrated area of a toner image developed by this developing device.

REFERENCES:
patent: 6029033 (2000-02-01), Kawasaki
patent: 2004/0008999 (2004-01-01), Iino
patent: 60142365 (1985-07-01), None
patent: 61-22362 (1986-01-01), None
patent: 11-249452 (1999-09-01), None
patent: 2001-188394 (2001-07-01), None
patent: 2001-356570 (2001-12-01), None
U.S. Appl. No. 10/385,716, filed Mar. 12, 2003, Aoki et al.

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