Heating control device, heating control method, and image forming apparatus
US8929753B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2011 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Mar 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2032
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A heating control device which is capable of detecting an abnormality of an object to be heated accurately. A power-supply unit applies the electric power to the electromagnetic induction heating coil. A magnetic flux detecting unit detects a magnetic flux emitted from the electromagnetic induction heating coil across the object, and outputs a voltage corresponding to the detected magnetic flux. A changing unit changes at least one of the detected magnetic flux voltage value and an abnormality detection threshold value based on relationship between an electric power set value that defines the electric power and an input voltage inputted to the power-supply unit. A determination unit compares the detected magnetic flux voltage value changed by the changing unit to the abnormality detection threshold value, and determines an abnormality of the object when the detected magnetic flux voltage value is larger than the abnormality detection threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.