| 摘要 |
A fixing apparatus includes a pair of fixing members composed of a fixing roller and a pressure roller that make pressure-contact with each other; an external heating belt for heating a surface of the fixing roller externally; and first and second external heating rollers having a heat source, for allowing the external heating belt to be suspended in a tensioned state. A sum of stiffnesses of the first and second external heating rollers is greater than or equal to a stiffness of the fixing roller.
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