| 摘要 |
<p>PURPOSE:To prevent a curl from being generated even if a paper sheet is moisturized by measuring the electric resistance of the paper sheet automatically, and forcibly-switching a discharge position switching device to a face-up side automatically when the value is smaller than a reference electric resistance value. CONSTITUTION:When a paper sheet W is taken out from a paper sheet cassette 3 and the paper sheet is fed to an image forming part 10, electric resistance DT is measured by a resistance measuring circuit 42 with the contact of a contact piece 41 to compare the measured electric resistance DT with the reference electric resistance ST by a resistance setter 51 in a switching signal generating means 50. Besides, when the amount of moisture in a paper sheet W is DT ST, a switching signal CHG is outputted to change over a discharge position switching device 30 so that the paper sheet may be discharged from a face-down FD direction to a face-up FU direction. A printed paper sheet is straight-discharged from a discharge port 8 to an outside tray, so it is possible to prevent a curl from being generated.</p> |
