Image forming apparatus and toner supply control program for...

Details Image forming apparatus and toner supply control program for... Image forming apparatus and toner supply control program for...

2007-09-06

2010-02-02

Chen, Sophia S (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S062000

Reexamination Certificate

active

07657194

ABSTRACT:
A digital color copier includes: a toner concentration storage which stores a detected toner concentration of each developer block of multiple developer blocks across an image forming width; a toner consumption predictor for predicting a first predicted toner consumption of toner consumed from developer of every developer block during a first circulation; a toner concentration estimator for estimating, for every developer block, a toner supply point estimate as the toner concentration at a point where toner is supplied, by subtracting the first predicted toner consumption from the associated detected toner concentration and setting up a toner supply target value of the toner to be supplied from a toner supply device to a developing device in accordance with the predicted toner consumption during a second circulation of the developer inside the developing device that follows the first circulation.

REFERENCES:
patent: 2006/0285861 (2006-12-01), Kunikawa
patent: 2008/0019712 (2008-01-01), Tanaka et al.
patent: 09-160364 (1997-06-01), None
patent: 09-185239 (1997-07-01), None
patent: 2001-183894 (2001-07-01), None
patent: 2006-171177 (2006-06-01), None

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