Color correction in a color image formation apparatus
US5963756A · kind A · utility
31Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00067
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.