| 摘要 |
PROBLEM TO BE SOLVED: To suppress small temperature unevenness in the longitudinal direction of an insulating substrate of an exothermic resistor, of which the length is formed in the short-length direction of the insulating substrate and the width is formed in the longitudinal direction of the insulating substrate. SOLUTION: An exothermic resistor 20 which is wide in the short-length direction of an insulating substrate of a long plate shape is formed, and connected to wiring patterns 14, 15 formed at both ends in the longitudinal direction of the exothermic resistor 20. Overcoat layers 21 are formed on the wiring patterns 14, 15 and exothermic resistor 20. Through holes 182, 192 are formed at positions each corresponding to the width of a small size sheet of paper out of the positions through which different sheets of paper in the longitudinal direction of the insulating substrate 11 of the wiring patterns 14, 15 pass. The through hole 182 is connected to an electrode 12 through a connection pattern 16 and the through hole 181, and the through hole 192 is connected to the electrode 13 through the connection pattern 17 and the through hole 191. COPYRIGHT: (C)2009,JPO&INPIT |
