A process cartridge includes an image forming unit including an image carrier, a developing unit, and a cleaning unit, the image carrier carrying a latent image and a toner image formed by developing the latent image with toner, the image carrier transferring the toner image onto a transfer body, the developing unit forming the toner image by developing the latent image with the toner, the cleaning unit cleaning the image carrier by removing the toner that remains on the image carrier; a container attachment unit that is provided at a position separated from the image forming unit and to which a toner container is detachably attached, the toner container containing the toner to be supplied to the developing unit; and a toner receiving unit that extends in a space between the image forming unit and the container attachment unit and receives the toner removed from the image carrier.