| 摘要 |
<p>An image heating apparatus includes: a rotatable heating member; a belt unit including an endless belt configured to heat the rotatable heating member, and a supporting portion configured to rotatably support an inner surface of the endless belt; a contact portion configured to contact a widthwise edge of the endless belt; an urging portion configured to urge the contact portion toward the widthwise edge of the endless belt; a detecting portion configured to detect, that the endless belt is out of a predetermined zone, depending on a position of the contact portion; a tilting portion configured to tilt the belt unit in a direction of causing the endless belt to return into the predetermined zone on the basis of an output of the detecting portion; and a retracting portion configured to retract the contact portion from the endless belt against an urging force of the urging portion.</p> |
