An image forming apparatus comprising: image forming means for forming an image on a recording material; and a power device for supplying power to the image forming means, the power device including a circuit board provided to intersect a horizontal plane, wherein the power device includes: an electrolytic capacitor including an explosion-proof valve for opening and spurting an inside electrolyte outwardly in a case where a voltage higher than or equal to a predetermined value is applied, the electrolytic capacitor protruding in a first direction from a mounting surface of the circuit board; an electric element (112, 113) under the electrolytic capacitor in a vertical direction, the electric element being exposed from the mounting surface; and a plate-shaped member provided between the electrolytic capacitor and the electric element in the vertical direction, the plate-shaped member including a first surface extending in a second direction intersecting the vertical direction as viewed in a direction perpendicular to the mounting surface of the circuit board, wherein the plate-shaped member includes a cutout or a hole, and a position of at least part of an area where the cutout or the hole is formed is farther in the first direction from the mounting surface of the circuit board than a position of the electric element. a power device for supplying power to the image forming means, the power device including a circuit board provided to intersect a horizontal plane, wherein the power device includes: an electrolytic capacitor including an explosion-proof valve for opening and spurting an inside electrolyte outwardly in a case where a voltage higher than or equal to a predetermined value is applied, the electrolytic capacitor protruding in a first direction from a mounting surface of the circuit board; an electric element (112, 113) under the electrolytic capacitor in a vertical direction, the electric element being exposed from the mounting surface; and a plate-shaped member provided between the electrolytic capacitor and the electric element in the vertical direction, the plate-shaped member including a first surface extending in a second direction intersecting the vertical direction as viewed in a direction perpendicular to the mounting surface of the circuit board, wherein the plate-shaped member includes a cutout or a hole, and a position of at least part of an area where the cutout or the hole is formed is farther in the first direction from the mounting surface of the circuit board than a position of the electric element. an electrolytic capacitor including an explosion-proof valve for opening and spurting an inside electrolyte outwardly in a case where a voltage higher than or equal to a predetermined value is applied, the electrolytic capacitor protruding in a first direction from a mounting surface of the circuit board; an electric element (112, 113) under the electrolytic capacitor in a vertical direction, the electric element being exposed from the mounting surface; and a plate-shaped member provided between the electrolytic capacitor and the electric element in the vertical direction, the plate-shaped member including a first surface extending in a second direction intersecting the vertical direction as viewed in a direction perpendicular to the mounting surface of the circuit board, wherein the plate-shaped member includes a cutout or a hole, and a position of at least part of an area where the cutout or the hole is formed is farther in the first direction from the mounting surface of the circuit board than a position of the electric element.