Non-impact copier/printer system communicating rosterized, printer independant data
US5699102A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00278
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A copier/printer system includes an image scanner for scanning a document and providing, after a compression step, digital image scanning signals, P.sub.1, that may be communicated to a computer system for display and editing or alternatively communicated to a grey level printer having a magnetic tape memory. The computer system may be used to display the scanned image for editing by an operator and is coupled to the printer so that the edited image signals, P.sub.2, which may be the scanned signals and a common page description language to modify its usage, may be printed by the printer. The edited image signals, P.sub.2, may be sent to the printer over a suitable network. The printer includes image processing electronics for transforming the edited data, P.sub.2, into device independent data signals, P.sub.3. Such signals may be received by printers of the same type; i.e., those employing similar process and halftone algorithms. The signals, P.sub.3, are then converted by a look-up table in the printer to device dependent signals, P.sub.4, for printing by the printer. The signals, P.sub.3, are stored in memory which may be recirculated for making multiple copies. The memory mediu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.