Image forming system including a plurality of recording medium cooling apparatuses and an uncurling apparatus

An image forming system comprising:

• an image forming unit configured to form a toner image on a recording material;
• a fixing device configured to heat the recording material carrying the toner image formed by said image forming unit to fix the toner image on the recording material;
• a first cooling device configured to cool the recording material that has been passed through said fixing device;
• a curl reducing device configured to nip and to feed the recording material that has been passed through said first cooling device and to reduce curling of the recording material;
• a second cooling device configured to cool the recording material that has been passed through said curl reducing device;
• and
• a duplex print feeding path branched from a recording material feeding path of said image forming system at a branch point between said first cooling device and said curl reducing device, said duplex print feeding path reversing a feeding direction of the recording material, on which the toner image is formed on the first side, and refeeding the recording material to said image forming unit,
• wherein said second cooling device is disposed in a downstream side of the branch point with respect to the feeding direction of the recording material.