Heating mechanism for use in image forming apparatus
US6643491B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 2, 2001 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Nov 2, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a fixing apparatus in which a cylindrical roller having a thin metal layer is heated by an induction heating. In order to shorten the rising time required for elevating the temperature from the stopped state to a predetermined temperature in fixing a toner image transferred onto a paper sheet to the paper sheet, a coil covering member is arranged within the heating roller between an exciting coil and the inner wall of the heating roller, the coil covering member being colored in a color effective for reflecting the infrared ray radiated from the heating roller toward the heating roller. The coil covering member is formed of a material exhibiting electrical insulating properties and heat insulating properties and having a small heat capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.