Thermal printer
US4638332A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1986 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Feb 14, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/355
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is equipped with a plurality of print buffers for inputting print data into a thermal head, wherein such print data are selectively fed to simply change the current on-time for energizing the heating elements of the thermal head relative to specific information out of the entire information to be printed, thereby partially altering the color-forming degree on the recording paper to definitely distinguish the emphatic label portion from any other portion, and the current on-time for energizing the heating elements is shortened for any print line having none of the particular-color print data, hence reducing the required print time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.