Thermal head drive circuit
US4607262A · kind A · utility
22Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1984 |
| Grant date | Aug 19, 1986 |
| Priority date | — |
| Expiry date | Jan 10, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/355
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal head drive circuit for use with a thermal head comprising multiple heat generating elements for data recording comprising a heat accumulation calculating unit (36) for calculating the heat residual from prior recording steps and a pulse width calculating unit (38) for calculating the pulse widths of voltage to be applied to an element dependent on the calculated residual heat and the pulse width of the prior recording step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.