Vibrating thermal printing
US4675701A · kind A · utility
6Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1986 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Apr 18, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/325
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A vibrating thermal printer transfers thermoplastic ink from a ribbon to a record medium by selectively heating resistive elements on a substrate of electrically conductive material. While the record medium and ribbon are passing the print head, the print head, by means of piezoelectric phenomenon, induces vibration in the head to facilitate the deposition of thermoplastic ink onto the paper. There is also shown the preheating of the ribbon to improve throughput.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.