| 摘要 |
PROBLEM TO BE SOLVED: To eliminate poor fixation and defective paper conveyance due to bending of a support stay caused by loading, without increasing the number of parts.SOLUTION: The shape of a fixation belt 11 during rotation is restricted by a belt guide 12. A nip formation member 14 makes the fixation belt 11 come in contact with a pressure roller 13 in a prescribed area of a circumferential direction along the axial direction of the pressure roller 13 to form a nip. A support stay 15 supports the nip formation member 14 against a pressure direction by the pressure roller 13. The fixation belt 11 is heated from inside by a heater 16. The support stay 15 is configured by overlapping at least two kinds of metals having different linear expansion coefficients in a pressure direction, a high expansion side metal 151 and a low expansion side metal 152. The side closer to the pressure roller 13 is the high expansion side metal 151. |
