Paperfalzvorrichtung sowie Bildaufzeichnungsgerät einschliesslich dieser

摘要

A paper post-processing apparatus for folding a paper ejected from an image forming apparatus at a paper folding process section, having a pair of folding rollers (611,612); a pair of fold-transporting rollers (613,614) each of which contacts with each of the pair of folding rollers; a driving unit; a folding roller moving unit (617); and a drive direction switching unit (Z4). When transporting a paper (S) without folding the paper, the folding roller moving unit (617) moves the folding rollers (611,612) to a releasing position, and the drive switching unit switches the folding rollers to the same rotation direction with each other; and when folding the paper, the folding roller moving unit (617) moves the folding rollers (611,612) to the pressure contact position, and the drive switching unit switches the folding rollers to the reverse rotation direction with each other.