FIXING DEVICE AND IMAGE FORMING DEVICE

• Main Author: MORISAKI SO
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• Subjects: CINEMATOGRAPHY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS

To provide a fixing device and an image forming device that can reduce a temperature change in a direction orthogonal to a recording medium conveyance direction as compared with a case where a plurality of heating elements that heat a sandwiching area that sandwiches a passing recording medium are provided at the same position in the recording medium conveyance direction.SOLUTION: A fixing device includes heating means and pressuring means for applying pressure so as to form a sandwiching area that sandwiches a passing recording media between the heating means and the pressuring means. The heating means includes a first heating element 74 and a second heating element 76 provided at different positions orthogonal to a recording medium conveyance direction in the sandwiching area. The first heating element and the second heating element include first heating sections 84a and 84a and second heating sections 84b and 84b that generate heat. The first heating element and the second heating element are disposed so as to be displaced in the recording medium conveyance direction so that the first heating sections and the second heating sections approach the recording medium conveyance direction.SELECTED DRAWING: Figure 5 【課題】通過する記録媒体を挟み込む挟込領域を加熱する複数の加熱体を記録媒体搬送方向の同じ位置に設けた場合と比較して、記録媒体搬送方向と直交する方向での温度変化を少なくすることができる定着装置及び画像形成装置を提供する。【解決手段】定着装置は、加熱手段と、前記加熱手段との間で通過する記録媒体を挟み込む挟込領域を形成するように加圧する加圧手段と、を有し、前記加熱手段は、前記挟込領域において、記録媒体搬送方向と直交する異なる位置に設けられた第１の加熱体７４及び第２の加熱体７６を有し、前記第１の加熱体と前記第２の加熱体とは、熱を発する第１の発熱部８４ａ，８４ａ及び第２の発熱部８４ｂ，８４ｂを有し、前記第１の加熱体と前記第２の加熱体とは、前記第１の発熱部及び前記第２の発熱部が記録媒体搬送方向に近づくよう記録媒体搬送方向にずれて配置されている。【選択図】図５