Image density control method for image recorder

Details Image density control method for image recorder Image density control method for image recorder

1991-11-12

1993-08-17

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355246, 430 31, G03G 2100

Patent

active

052373703

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: 4693592 (1987-09-01), Kurpan
patent: 4801980 (1989-01-01), Arai et al.
patent: 4833506 (1989-05-01), Kuru et al.
patent: 4975747 (1990-12-01), Higuchi
patent: 5012430 (1991-04-01), Sakurai
patent: 5084754 (1992-01-01), Tomitaka
patent: 5142332 (1992-08-01), Osawa et al.

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