Thermal printer and method of designing hot cathode fluorescent tube for thermal printer
US6414703B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2001 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Aug 8, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This printer performs a heating process via a thermal head 1 on TA paper 11 provided with color forming layers and fixes the heat processed TA paper 11 via a fixing lamp 7. The fixing lamp 7 is formed from: a fluorescent tube that has a fluorescent coating applied to the inside surface of the glass tube and inside which are sealed mercury and noble gases; filament electrodes provided at both ends of the fluorescent tube; a hot cathode fluorescent lamp formed from lead wires that supply power to the filament electrodes; and a magnetic circuit that is provided on a side surface of the fluorescent tube and that generates a magnetic field that acts on the current that flows through the fluorescent tube when power is fed to the filament electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.