Temperature control of a fixing apparatus using an induction heating system
US8078073B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jun 16, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2039
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a fixing apparatus of an embodiment of the invention, a heat roller forwardly and reversely rotated by a drive motor capable of forwardly and reversely rotating is heated by an induction heating coil also when it is reversely rotated. Further, the roller control temperature of the heat roller by a control system is adjusted according to a time of forward rotation of the heat roller and a time of reverse rotation, or a time when the heat roller and a press roller are separated from each other and a time when they are in contact with each other. Besides, after a specified time has passed since an instruction of reverse rotation or forward rotation by a drive signal, output of the induction heating coil is tuned on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.