Image forming apparatus

An image forming apparatus comprising:

• an ejection stacking section configured to stack one or more recording mediums each having an image formed thereon;
• a cooling target unit disposed below the ejection stacking section;
• and
• a cooling fan configured to send air to flow between the cooling target unit and the ejection stacking section, wherein
• the ejection stacking section includes
• an opening,
• a movable member configured to be movable between a closed position at which the movable member closes the opening and an open position at which the movable member opens the opening, the open position being below the closed position, and
• a biasing member biasing the movable member toward the closed position, and
• in response to that the recording mediums are stacked on the ejection stacking section, the movable member moves toward the open position against a biasing force of the biasing member to allow the air sent from the cooling fan to flow through the opening so as to cool a lower surface of the recording mediums stacked on the ejection stacking section.