| 摘要 |
A belt-fixing device to fix a toner image on a sheet includes an endless belt, a first roller disposed inside the endless belt, a second roller disposed in contact with the first roller via the endless belt, forming a fixing nip therebetween through which a recording medium passes, and a ring shape edge for controlling movement of the belt in an axial direction, provided on an inner surface of the endless belt. The ring shape edge is positioned between the first roller and the second roller.
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