Multiple information array registration apparatus and method
US4731622A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1985 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/50
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multicolor electrostatic plotter is disclosed and includes an image head for imparting a charge pattern to a web medium to be imprinted and a plurality of toner means associated with different colors in which different colors are successively applied to portions of the medium by repeatedly driving and rewinding a portion of the medium past the image head and the plurality of toner means for charge and toner application to imprint multiple color rasterized images on the medium by the use of electronic circuitry which imprints a reference track on the medium during the first color pass and then optoelectronically detects deviations, generally perpendicular to the directional movement of the medium, of the medium during successive color passes substantially instantaneously with the deviations and which electronically adjusts the input data from a remote rasterizer by an amount equal to the substantially instantaneous offset so that lines of raster data are shifted by an amount substantially equal to the instantaneous displacement of the medium prior to charging the particular electrodes on the image head corresponding to the charge patterns for the next successive particular lines o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.