| 摘要 |
PROBLEM TO BE SOLVED: To secure insulation between each of the side surfaces or edge portions in a short-length direction of a conductive substrate of a heating member and a conductive base layer of a flexible member, even when an insulating layer is provided only at the longitudinal center part of the conductive substrate of the heating member which comes in contact with the conductive base layer of the flexible member. SOLUTION: The image heating device includes: the heating member including a long narrow substrate having properties to generate heat when energized, and reduce its resistance value in accordance with a temperature rise, an electrode part provided inside each longitudinal end portion of the substrate, for supplying power to the substrate, and the insulating layer provided at the longitudinal center part of the substrate; a supporting member configured to support the heating member; and the flexible member which moves while being in contact with the insulating layer and includes the conductive base layer which comes in contact with the insulating layer, wherein an image carried on a recording material is heated by heat of the heating member through the flexible member. Both end surfaces in the short-length direction perpendicular to the longitudinal direction of the substrate, on the surface, coming in contact with the flexible member, of the insulating layer are covered with the supporting member. COPYRIGHT: (C)2011,JPO&INPIT
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