An image forming apparatus is provided that includes multiple process cartridges. Each process cartridge includes a photosensitive element, an electrification unit, and a process frame. The electrification unit includes a discharging unit and an electrification frame which contains the discharging unit. The electrification frame has a first opening formed between the photosensitive element and the discharging unit and a second opening formed at a position opposite the first opening across the discharging unit. The process frame includes an exposure opening opposing the photosensitive element. The process cartridges are arranged such that one process cartridge opposes the second opening and the exposure opening of the electrification unit of an adjacent process cartridge. A regulation member is provided between the pair of process cartridges to regulate airflow. The regulation member has elasticity and is disposed in a position between the second opening and the exposure opening of the electrification unit.