Method and apparatus for color image formation with gradation control capability
US5697012A · kind A · utility
16Cited by
8References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1995 |
| Grant date | Dec 9, 1997 |
| Priority date | — |
| Expiry date | Apr 24, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00063
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color image forming method and apparatus in which toner patterns, formed by toners of different colors, on an image bearing member, can be detected by a single sensor. Near-infrared light is emitted from an LED at each formation of a single-colored pattern on the photosensitive drum and the amount of near-infrared light reflected from the drum is detected by the sensor, for the purpose of effecting gradation control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.