Heat plate, heating element, belt type fixing device and image forming apparatus
US6826382B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Mar 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/262
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heat plate for fixation comprising: a metallic base plate; and a heating resistor arranged on a reverse face of the metallic base plate, the heating resistor being formed by laminating, at least, an electric insulating layer and heating resistor layer in this order on the metallic base plate, wherein the heat plate is capable of raising the temperature of the metallic base plate to a fixing temperature when the heating resistor layer is energized and heated. A semicircular heating member for fixation comprises the heat plate which is curved so that the metallic base plate has a convex surface, a belt type fixing device is provided with the semicircular heating member, and an electrophotographic image forming apparatus is provided with the belt type fixing device comprising the semicircular heating member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.