Inductive thermal fixing apparatus having magnetic flux blocking plate with specific thickness
US6687481B2 · kind B2 · utility
18Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | May 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2053
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An image fixing apparatus has a magnetic field generating unit for generating a magnetic flux; a heating member generating heat by induction heating by the magnetic flux generated by the magnetic field generating unit; and a blocking plate, disposed for movement between the magnetic field generating unit and the heating member, for blocking the magnetic flux from the magnetic field generating means, wherein the blocking plate comprises an electroconductive member having a thickness of 0.1-2 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.