| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating apparatus capable of suppressing heat of a conductive part between a feeding electrode and a heat element.SOLUTION: A heating device includes an elongated substrate 301, a plurality of heat elements 302, 303, 304, and 305 that are provided along the substrate 301 in the longer direction, a plurality of feeding electrodes 306, 307, and 308 that are provided on one end E side of the substrate 301 in the longer direction and respectively feed the plurality of heat elements 302, 303, 304, and 305, a plurality of conductive parts 312, 313, and 314 that connect the plurality of heat elements to the plurality of feeding electrodes, and the cross sectional area in the feeding direction of each of the plurality of conductive parts 312 to 314 is formed to become large as a feed amount of the conductive part is large. |
