Image density control method for image recorder
US5237370A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1991 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Nov 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/90
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.