| 摘要 |
PROBLEM TO BE SOLVED: To provide an image heating device that can reduce a difference in pressure between both ends and the central part along the generating line of a belt member when a pressure applied to a nip part is reduced, with a simple mechanism arranged in an internal space of the belt member. ! SOLUTION: A pressure mechanism 60 can apply a first urging force and a second urging force smaller than the first urging force between a stay 102 and a pressure roller 106 to apply a pressure to a nip part N. A pressure application auxiliary spring 120 is arranged between a guide member 103 and the stay 102. Since the pressure application spring 120 urges both ends of the guide member 103 along the generating line of a fixing belt 101 from the stay 102 toward the nip part N, when the second urging force is applied between the stay 102 and pressure roller 106, the guide member 103 is properly pressed toward the pressure roller 106 to suppress a reduction in the pressure to be applied to the nip part on both |
