Electrophotographic process control device using fuzzy logic

Details Electrophotographic process control device using fuzzy logic Electrophotographic process control device using fuzzy logic

1992-03-20

1994-04-26

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355204, 355210, 395900, G03G 2100

Patent

active

053071182

ABSTRACT:
A device for controlling an electrophotographic process such that a stable latent image is formed on a photoconductive drum in matching relation to changes in the characteristics of a photoconductor. Deterioration detecting sections classify, among the characteristics of the drum, a plurality of drum deterioration factors including the amount of wear, electrostatic fatigue, fatigue due to exposure, the degree of continuous use, temperature and humidity by a time range such as long-term/short-term/day or by a number-of-copy range such as great amount/small amount/day-amount. The deterioration detecting section quantizes each of such degrees of deterioration of the drum by fuzzy inference. A latent image manipulation value determining section determines a charge manipulation value and an exposure manipulation value by fuzzy inference.

REFERENCES:
patent: 5138380 (1992-08-01), Umeda et al.
patent: 5200780 (1993-04-01), Koichi
patent: 5204718 (1993-04-01), Morita

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