Single-pass color plotter
US4804979A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Oct 6, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printer/plotter incorporates four individual microprocessor-based print stations, each for printing on a print media a separate color image for superimposition with one another, forming a final full-color image. The four print stations are located along a transport path for single-pass operation, and each print station includes a transport system that allows the media to traverse a print station with controlled forces exerted on the media by that station. The invention further includes a precise registration system wherein each print station monitors registration marks to detect variations of the media (i.e., stretching or shrinkage) during the printing process and to correct for such variations on obtaining accurate registration of the individual images for a full-color result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.