| 摘要 |
PURPOSE:To eliminate curl which occurs at the time of introducing a recording material which comes out from a fixing means to a recirculation feeding system for an image forming part by preventing image-forming in the case that a temperature in a fixing process does not become a specified temperature. CONSTITUTION:In order to form an image by such a function that an image forming process including an image producing process and the fixing process is performed once or more times on the same surface or the rear of the image formed surface of the recording material to which the 1st image forming process has been performed, the temperature in the fixing process is changed to the specified temperature T2 according to the number of plural image forming processes to the same recording material so as to execute image-forming, and image-forming is prevented in the case that the temperature in the fixing process does not become the specified temperature. Generally, the 2nd fixing temperature T2 is several tens deg.C lower than a 1st fixing temperature T1., When the recording material is fed to the image producing process through the recirculation feeding system again, the curl of the resupplied recording material hardly occurs. |
