Color image forming method
US4578331A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Jul 10, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0163
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic color image forming process wherein three light beams each representing image information of one of three primary colors or yellow, magenta and cyan of a color document to be recorded obtained by color separation are projected against an electrophotographic photosensitive member to form electrostatic latent images which are developed by toners of the three different colors, respectively, and printed by transfer-printing, to record a color image. The image information of three colors is simultaneously written to a surface of the photosensitive member as three scanning lines either by successively writing a plurality of sets of three scanning lines each representing image information of one color or by writing image information of different colors of the same set separately in three different zones, so that the scanning lines representing image information of different colors form a repeating series of three stripes of different colors. The electrostatic latent images formed on the scanning lines are excited in positions immediately before developing sections of respective colors and developed by the toners of respective colors to produce toner images of differ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.