Fixing apparatus and image forming apparatus for controling power supplied to heater based on temperature detection
US10061234B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Sep 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/80
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fixing apparatus configured to fix a coloring material attached to a recording medium by heating the recording medium by using a fixing member includes: a heater configured to heat the fixing member; an AC power source configured to apply AC voltage to the heater; a temperature detection unit configure to detect a temperature of the heater; and a power control unit configured to control drive power supplied to the heater from the AC power source by calculating an application pattern of AC voltage to be applied to the heater based on an output of the temperature detection unit, and by appropriately selecting a half wave of AC waveform from the AC power source based on the application pattern, wherein the power control unit supplies power equivalent to a waveform with a predetermined phase angle on a non-selected half wave from the AC power source to the heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.