US Patent 11669045 Image forming apparatus to reduce emission amounts

An image forming apparatus includes a first duct unit, a first air blowing fan, a second duct unit, a filter, and a second air blowing fan. The first duct unit includes a power source substrate, a first intake portion, and a first exhaust portion. The first air blowing fan forms an airflow from the first intake portion to the first exhaust portion. The second duct unit includes a second intake portion to take air in from inside the image forming apparatus, and includes a second exhaust portion to exhaust the air taken in from the second intake portion to outside of the image forming apparatus. The filter is disposed between the second intake portion and the second exhaust portion in an airflow from the second intake portion to the second exhaust portion. The second air blowing fan forms the airflow from the second intake portion to the second exhaust portion.