An image forming apparatus includes a main assembly, a first unit openable relative to the main assembly, and a second unit which is provided inner than the first unit and which is openable relative to the main assembly. Two engaging portions are provided on the second unit for placing the second unit in a closed state in engagement with the main assembly. An urging portion is provided in the first unit for urging the second unit. The second unit is urged by the urging portion of the first unit so that a state of the second unit is capable of being changed from an open state to the closed state. The urging portion urges a region in a neighborhood of a central portion of the second unit with respect to a direction of arrangement of the two engaging portions.