An image forming apparatus includes a rotatable image carrier, a development device and a seal member. The seal member is provided on a downstream side in a rotating direction of the image carrier beyond the development device. The seal member is configured to prevent toner from leaking into a downstream side space in the rotating direction through toner image non-forming areas. The seal member has an elastic member and a slide member. The elastic member has an opposed surface and an end surface. The opposed surface faces the toner image non-forming area. The end surface goes around into a direction separating from the development device from an upstream side end of the opposed surface in the rotating direction. The slide member is provided along the opposed surface and the end surface. The slide member is configured to come in contact with the toner image non-forming area.