Facsimile transceiving apparatus
US3990694A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1973 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Jun 28, 1993 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/29
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A facsimile transceiver apparatus is described which includes means for advancing a document to a station at which location the document is line scanned by a laser light beam. A video signal thus formed is transmitted to a remote facsimile apparatus for reproduction of the document. The transceiver further includes an electrostatographic printing station at which station a latent electrostatic image is formed by line scanning a laser light beam over a uniformly charged photoreceptor surface. A means for line scanning at the document scanning station and at the photoreceptor surface includes a laser light source and means for alternatively sweeping the laser light beam across the document at the scanning station or across a charged image retention surface at the printing station. Means are also described for enhancing document feed, resolution, and speed of reproduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.