Electrophotographic heating apparatus, system, and method
US6542705B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/0095
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating device of the present invention includes a main power source and an auxiliary power source implemented by a chargeable capacitor. A heater is made up of a main heating element that heats when supplied with power from the main power source and an auxiliary heating element that heat when supplied with power from the auxiliary power source. A charger charges the capacitor of the auxiliary power source when supplied with power from the main power source. A switch selectively causes the auxiliary power source to be charged or to feed power to the auxiliary heating element. A controller adjusts the power to be fed from the auxiliary power source to the auxiliary heating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.