| 摘要 |
PROBLEM TO BE SOLVED: To provide a copier for efficiently forming images on both sides of a recording paper sheet. SOLUTION: Recording paper sheets with an image formed on one side, passing an image forming part 102, are inserted into an automatic both-side unit 103, and the front and rear side of the recording paper sheets are reversed while the intervals of the plural recording paper sheets are adjusted at plural prescribed positions on a reversing pass 119 folded in two upper and lower steps. As the plural recording paper sheets with the same image on one side can be reversed one by one and fed out to the image forming part without being stacked, the time for the first sheet with images on both sides to be issued out of the copier can be significantly reduced. Therefore, images can be efficiently formed on both sides of a recording paper sheet by the copier. |
