Image heating apparatus having an opening and closing mechanism that opens and closes an air blowing port using a plurality of shutter members

An image heating apparatus comprising:

• a first rotatable member and a second rotatable member which are configured to form a nip in which a toner image is fixed on a recording material;
• an air blowing mechanism;
• a first duct configured to guide air from said air blowing mechanism toward an end portion of said first rotatable member with respect to a longitudinal direction of said first rotatable member;
• a first opening and closing mechanism configured to open and to close a first air blowing port of said first duct, wherein said first opening and closing mechanism includes a plurality of shutter members configured to close said air blowing port in cooperation with each other;
• a second duct configured to guide air from said air blowing mechanism toward the other end portion of said first rotatable member with respect to a longitudinal direction of said first rotatable member;
• and
• a second opening and closing mechanism configured to open and to close a second air blowing port of said second duct, wherein said second opening and closing mechanism includes a plurality of shutter members configured to close said air blowing port in cooperation with each other.