Electrophotography – Diagnostics – Consumable
Patent
1995-05-02
1997-10-28
Brase, Sandra L.
Electrophotography
Diagnostics
Consumable
G03G 1508
Patent
active
056825722
ABSTRACT:
An image density control method applicable to an electrophotographic copier or similar image recorder for controlling the toner concentration of a two-component developer, i.e., a mixture of toner and carrier to maintain the density of a toner image produced by the developer constant. Predetermined calculations are performed on the basis of the output of a photosensor which is responsive to the toner images representative of reference patterns formed on a photoconductive element.
REFERENCES:
patent: 4932356 (1990-06-01), Watanabe et al.
patent: 5006896 (1991-04-01), Koichi et al.
patent: 5057870 (1991-10-01), Aoki
patent: 5142332 (1992-08-01), Osawa et al.
patent: 5150135 (1992-09-01), Casey et al.
Kato Shinji
Murai Kazuo
Murayama Hisao
Brase Sandra L.
Ricoh & Company, Ltd.
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