Thermal matrix type printing head
US4023184A · kind A · utility
10Cited by
9References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 6, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Oct 6, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/345
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printer for recording images on thermally sensitive paper. It includes a head that comprises a set of longitudinally extending fingers comprising laminated highly conductive and resistive heating layers. Gaps in the electrically conductive layers traverse the fingers to form discrete printing areas in the resistive layers. An electrical current selectively passed through a finger heats the printing area therein and thereby records a dot image at a corresponding portion of the paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.