Electrophotographic process control device using a neural network to control an amount of exposure
US5216463A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1992 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Apr 17, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4072
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrophotographic process control device capable of controlling the supply of a toner in such a manner as to stabilize an image against changes in the characteristics of a photoconductive element and in toner density. At the learning stage of a neural network, data from sensors are applied to the input layer of the network while a latent image gamma characteristic indicative of a relation between the amount of exposure and the potential of an image area is used as learning data to be given via the output layer of the network. At a control stage, the data from the sensors are applied to the input layer of the network, as at the learning stage, and the amount of exposure is so controlled as to set up a desired potential in an image area on the basis of a latent image gamma characteristic obtainable from the output layer of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.