IMAGE FORMING APPARATUS

• Main Authors: TOKUDA TETSUO, HIROSE FUMIHIRO, ARAI DAISUKE, UJIIE HIROTERU, AMITA AKIYASU
• Format: Patent
• Language: English; Japanese
• Published: 30.03.2022
• Subjects: CINEMATOGRAPHY; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To provide a fixing device that can prevent deformation of a magnetic flux control member.SOLUTION: A fixing device has electromagnetic induction heating means 24 and a magnetic flux control member, and is provided with supply power control means 70, 71 that change the upper limit of power supplied to the electromagnetic induction heating means 24 according to a target temperature of an object heated by the electromagnetic induction heating means. An image forming apparatus comprises a temperature detection sensor 28 that is to be heated by the electromagnetic induction heating means 24. The supply power control means 70, 71 change the power supplied to the electromagnetic induction heating means 24 based on the target temperature and a temperature detected by the temperature detection sensor 28.SELECTED DRAWING: Figure 3 【課題】磁束制御部材の変形を抑制できる定着装置を提供する。【解決手段】電磁誘導加熱手段２４と磁束制御部材とを有する定着装置において、電磁誘導加熱手段２４による加熱対象の目標温度に応じて電磁誘導加熱手段への供給電力の上限を変更する供給電力制御手段７０，７１を設けた。電磁誘導加熱手段２４による加熱対象の温度検知センサ２８を備え、供給電力制御手段７０，７１は、温度検知センサ２８による検出温度と目標温度とに基づいて電磁誘導加熱手段２４への供給電力を変化させる。【選択図】図３