Image forming apparatus

An image forming apparatus comprising:

• an image bearing member configured to bear a toner image;
• an image forming unit configured to form the toner image on the image bearing member;
• a belt conveying device including an intermediate transfer belt to which the toner image formed on the image bearing member is transferred, wherein the belt conveying device is provided to be attachable to and detachable from the image forming apparatus in a direction intersecting a width direction of the intermediate transfer belt orthogonal to a moving direction of the intermediate transfer belt and intersecting a vertical direction;
• a pair of restriction portions provided in the belt conveying device and configured to restrict an orientation of the intermediate transfer belt;
• and
• restriction engagement portions provided in a main body of the image forming apparatus and configured to restrict the orientation of the intermediate transfer belt by being engaged with the pair of restriction portions at least in a case where the belt conveying device is pulled out to a predetermined position in the image forming apparatus,
• wherein one restriction portion of the pair of restriction portions is supported to be movable to a first position where at least a part of the one restriction portion is placed outside a stretching area defined by the intermediate transfer belt in a stretched state, as viewed from the width direction of the intermediate transfer belt, and a second position where the one restriction portion is inside the stretching area as viewed from the width direction of the intermediate transfer belt.