Temperature compensated continuous tone thermal printer
US4710783A · kind A · utility
22Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Jul 24, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/508
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A continuous tone temperature compensated thermal printing apparatus is described which uses a thermistor that produces a signal representative of the average temperature of a print head. This signal is used to control the pulse width of constant current pulses which are used to energize heating elements of a print head in printing an image pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.