| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure of a refeeding conveying passage, so as to achieve miniaturization, in a refeeding device for refeeding a sheet material in which image forming is finished on one surface to an image forming part, and for again performing image forming on the other surface. SOLUTION: A sheet material S in which image forming is finished on one surface by an image forming part 4 of an image forming device main body 1 and a fixing means 6 is carried into a refeeding conveying passage A of a refeeding device 10 through a sheet material carrying out port 2h. The carried-in sheet material S is conveyed to a refeeding conveying passage (a switch back waiting part) B by a switch back conveying roller pair 13 until the rear end passes a flapper 18 and then refed to the image forming part 4 through the flapper 18 and a refeeding conveying passage C, and image forming is performed on the other surface. In the sheet material waiting part B, the upper part is constituted of a guide member 20, and the lower part is constituted of a frame member 30. Since any guide member for constituting the lower part is not required, the structure is simplified. |
