Apparatus for electrothermal printing
US4704616A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1986 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Aug 19, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40031
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for electrothermal printing using an ink film which has a layer of fusible ink on a resistive layer. The resistive layer is contact by a plurality of stylus electrodes which are formed on an insulating substrate. A potential difference applied to pairs of adjacent electrodes heats the resistive layer, allowing fusible ink to be transferred to a transfer sheet to form picture elements. A plurality of picture elements can be produced simultaneously by dividing the styluses into N groups, represented as N.times.J+1, N.times.J+2, etc., where J is 0, 2, 3, . . . , and N is an odd number greater than 3. The groups are printed, one after the other, by energizing styluses which correspond to the picture elements to form a picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.