| 摘要 |
<p>PROBLEM TO BE SOLVED: To shorten printing time by rapidly supplying the paper of an intermediate tray again when the printing action of a front surface is switched to that of a back surface. SOLUTION: This paper supply device for an image forming device is constituted so that the plural papers 11 obtained by forming images on the front surfaces thereof are temporarily housed on the intermediate tray 10, supplied again toward an image forming part 1 thereafter and ejected to an ejection part after the image is formed on the back surfaces of the re-supplied papers 4 when the printing action is executed on both surfaces of the plural papers 4. Besides, it is constituted so that the papers on the tray 10 are supplied again in such timing that they are supplied without leaving a large interval with respect to the papers 4 supplied to the image forming part 1 by a paper supply part 7 in order to execute the printing action of the front surface. Therefore, since the re-supply timing of the paper from the tray 10 is quickened when the printing action of the front surface is switched to that of the back surface, the interval between the final paper 4 supplied from the paper supply part 7 and the first paper 4 supplied again by a paper re-supply part 15 can be narrowed.</p> |
