Method and apparatus for thermal printer temperature control
US4797837A · kind A · utility
14Cited by
18References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1986 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Apr 24, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/365
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for control of the temperature of a thermal printing device. Thermoelectric heat pumps are used to cool a thermal print head which does not cool between cycles sufficiently below the threshold temperature for the thermal paper or thermal transfer ribbon being used, due to heat build-up, particularly during high-speed operation. A sensed thermal print head temperature is digitized and compared to a reference temperature for a determination of whether or not operation of the heat pumps should be initiated or halted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.