| 摘要 |
PROBLEM TO BE SOLVED: To avoid a decrease in productivity regarding the formation of images on both sides of a sheet of recording paper in an interleaved mode, even if the sheet is conveyed over a long distance from a paper feeding part to an image forming part. SOLUTION: This image forming device has a paper re-feeding part by which a sheet of recording paper with an image formed on one side thereof is reversed and fed again to the image forming part. When images are to be formed on both sides of each sheet of recording paper in the interleaved mode in which the images are formed alternately on the first and second sides of each sheet of recording paper, while the sheets of recording paper with images already formed on their first sides are distributed over a path of conveyance, the sheets are managed in order of image formation and in order of feed; if the distance over which the sheets are conveyed from the paper feeding part to the image forming part is longer than the distance over which the sheets are conveyed from the paper re-feeding part, the order of paper feeding is changed so that the feed of a new sheet of recording paper is started first from the paper feeding part. |
