Fixing device and image forming apparatus

A fixing device comprising:

• a fixing portion configured to heat a toner image formed on a first side of a sheet and to fix the toner image on the sheet;
• a first rotatable member pair provided on a downstream side of said fixing device with respect to a sheet feeding direction and configured to feed the sheet;
• a second rotatable member pair provided adjacent to the downstream of said first rotatable member pair with respect to the sheet feeding direction and configured to feed the sheet;
• a guide portion configured to contact with a second side of the sheet opposite to the first side of the sheet fed by said first rotatable member pair and guide toward said second rotatable member pair, said guide portion forming a part of a feeding passage between said first rotatable member pair and said second rotatable member pair with respect to the sheet feeding direction;
• a blowing portion configured to blow air toward said feeding passage;
• a first duct configured to guide the air from said blowing portion and communicate with said feeding passage at a first position on the downstream side of said first rotatable member pair and on an upstream side of said second rotatable member pair with respect to the sheet feeding direction;
• and
• a second duct configured to guide the air from said blowing portion and communicate with said feeding passage at a second position on the upstream side of the first position and on the downstream side of said first rotatable member pair with respect to the sheet feeding direction;
• wherein said first rotatable member pair and said second rotatable member pair are contactable to the sheet over an entire width of the sheet passing through said feeding passage with respect to a widthwise direction of the sheet perpendicular to the sheet feeding direction;
• and
• wherein the air from said blowing portion passes through said first duct, is sent to said feeding passage from the first position, is sent to the second side of the sheet passing through the feeding passage, and then, the air from said blowing portion passes through said second duct from said feeding passage via the second position and is exhausted.