Image heating device, image forming apparatus, image copying machine, and method for controlling temperature
US6968137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image heating device is provided with reduced cost, by which a difference in glossiness among printed images on recording media is eliminated, and the wrapping of a belt and the like at a high temperature is prevented. In the image heating device, a controller estimates a temperature of a pressure roller according to at least one of a temperature of a belt detected by a temperature sensor and a variation with time in the detected temperature from completion of the heating after application of an electric power to the magnetization coil by an exciting circuit is stopped and the heating of the belt by the heating roller is stopped, so as to determine a set temperature for the belt in a subsequent image heating period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.