Thermal transfer printer having an improved thermal head to improve ink transfer eveness
US4840500A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Jul 23, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/345
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The face pressure distribution shape of the graze portion of the thermal head is made to be consistent with the temperature distribution shape of the graze portion of the thermal head. The temperature distribution shape of the graze portion of the thermal head is made to be consistent with the face pressure distribution shape of the graze portion of the thermal head. The graze portion of the thermal head is formed projectingly in two steps, and the heating resistor element of the thermal head is provided on the top portion of the graze portion of the thermal head. A thermal transfer printer having no ink void and no ink transfer unevenness can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.