Apparatus for re-inking a ribbon in a thermal transfer printing system
US4253775A · kind A · utility
18Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | Jun 29, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J31/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A doctor blade is used to apply a powdered toner to the depleted regions of a resistive thermal transfer ribbon. The ribbon is then moved adjacent a heating electrode that passes current through a resistive substrate of the ribbon so that a transverse line on the ribbon is heated and the added toner is fused in the depleted regions of the ribbon. The heated area of the ribbon is thereafter compressed by a cold roller to provide a uniform re-inked surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.