An image forming apparatus includes: a process cartridge that is provided in the image forming apparatus to be removable from the image forming apparatus along an attachment-and-detachment path; a first pressing member that is provided to be movable bi-directionally in an advancing direction advancing to the attachment-and-detachment path and in a receding direction receding from the attachment-and-detachment path, the first pressing member being configured to press the process cartridge toward an attachment direction in which the process cartridge is attached in a first state in which the first pressing member is moved toward the advancing direction, and to enable detachment of the process cartridge in a second state in which the first pressing member is moved toward the receding direction.