An image forming apparatus, including: a main body including a rear face cover; a photosensitive member on which an image is formed; a transfer unit configured to transfer the image onto a sheet; a motor supported by a rear plate of the main body and configured to rotate the photosensitive member; a box made of metal fixed to a fixing portion of the main body with a screw and located between the rear face cover and the motor; a first circuit board provided in the box; a second circuit board provided outside the box; and a flexible flat cable configured to connect the first circuit board and the second circuit board, wherein, with the flexible flat cable connecting the first circuit board and the second circuit board, a position of the screw overlaps with the flexible flat cable in a direction orthogonal to the first circuit board.