Electrophotographic process control device using fuzzy logic
US5307118A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Mar 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.