Color correction in a color image formation apparatus

Details Color correction in a color image formation apparatus Color correction in a color image formation apparatus

1997-12-22

1999-10-05

Braun, Fred L.

Electrophotography

Control of electrophotography process

Color balance

G03G 1500, G03G 1501

Patent

active

059637560

ABSTRACT:
When a color image is formed using exposure units, photoconductive drums, developing machines, transfer printing machines and the like, a color patch using each monochrome toner prepared for the above developing machines and a color patch formed by overlapping plural colors of toner are formed on a transfer medium as sample images. After the two types of color patches are fixed by a fixing roll, they are detected by a fixed image density sensor installed after the fixing roll. A control section corrects an image formation condition based upon difference in density between the two types of sample images.

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patent: 5493321 (1996-02-01), Zwadlo
patent: 5722003 (1998-02-01), Suzuki et al.
Alman, David H. et al. "Performance Testing of Color-Difference Metrics Using a Color Tolerance Dataset." Color Research and Application, vol. 14, No. 3, Jun. 1989, pp. 139-151.

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