| 摘要 |
PROBLEM TO BE SOLVED: To prevent a paper sheet from being curled and a jam from being generated by controlling conveyance according to the type of paper to be formed with an image when double-face image formation is performed by a circulation type sheet conveying method. SOLUTION: In this image forming device having a double-face image forming method by a circulation type sheet conveying method, a user interface capable of setting the type of paper is provided on an operation part, a CPU in a controller sets the number of circulation sheets on the basis of not only the paper size but also the type of paper (S2512) and controls conveyance for a recording medium along a circulation path according to the set number of recording media capable of being circulated (S2508, S2505 and S2510). |
