Belt conveyance apparatus and fixing apparatus

A belt conveyance apparatus comprising:

• a belt in a form of an endless belt;
• a first roller configured to support and stretch the belt;
• a second roller configured to support and stretch the belt together with the first roller;
• a steering mechanism configured to tilt the first roller, which rotates, relative to the second roller, to cause the belt to move reciprocally in a rotational axis direction of the first roller;
• a detection unit configured to detect an edge of the belt in the rotational axis direction, the detection unit sampling a plurality of points of the edge of the belt during a time period from when the belt starts traveling until the belt rotates one round;
• and
• a control unit configured to control the steering mechanism according to a steering control amount obtained by a correction based on the sampling of the edge of the belt detected by the detection unit,
• wherein, during the time period from when the belt starts traveling until the belt rotates one round, the control unit controls the steering mechanism based on a first steering control amount, and
• wherein, after completion of one rotation of the belt, the control unit controls the steering mechanism based on a second steering control amount larger than the first steering control amount.