Induction heating fusing device
US6246036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2000 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Aug 2, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2064
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The object of the present invention is to provide an induction heating fusing device in which the rotary heating member, such as a fusing roller or fusing belt, may be easily replaced. In order to attain this objective, the induction heating fusing device has a core, which forms a closed magnetic circuit, that comprises a first core component that runs though the empty space of the fusing roller, and a second core component that exists outside the empty space of the fusing roller, said core components being separable. The fusing roller, first core component and induction coil are housed in a casing, and comprise a fusing unit that may be replaceably mounted to the main unit of an image forming apparatus. During replacement of the fusing unit, the second core component remains in the image forming apparatus. The induction heating fusing device also has a pressurization means that causes the end surfaces of the first core component and the end surfaces of the second core component to be in pressure contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.