Fixing device having an electric power control system to an induction heating coil for image forming apparatus
US8036556B2 · kind B2 · utility
2Cited by
3References
27Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/2039
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing apparatus according to an embodiment of the present invention controls, using a CPU and a temperature comparator, an inverter circuit that supplies electric power to an induction heating coil and performs temperature control for a heat roller. The CPU adjusts and controls a power value supplied by the inverter circuit. When the adjustment and control of the power value by the CPU is late, the inverter circuit is ON-OFF controlled by the temperature comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.