An image forming device including: plural process cartridges which are provided in a device main body so as to be installable and removable in a lateral direction, and which are disposed in a vertical row; a belt body disposed so as to face the process cartridges, and able to withdraw from installation and removal routes of the process cartridges; an inner frame supporting both ends of an entraining roller around which the belt body is entrained; an outer frame provided at an outer side of the inner frame, and supporting the inner frame; and handles provided at end portions of the plural process cartridges respectively, the handles projecting-out from between the inner frame and the outer frame, and being grasped at times when the process cartridges are installed and removed.