| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent any defective conveyance of paper sheets, and to align the position of a printed image on the back side in the width direction of the paper sheets, in a double-face printer in which the printed image is aligned by moving a paper feeding tray in the width direction of the paper sheets. <P>SOLUTION: In the double-face printer, a paper sheet on a paper feed tray 21 is subjected to the first printing by a print unit and conveyed to a paper discharge tray 32, conveyed from the paper discharge tray 32 to a paper re-feeding tray 51, then, the paper sheet is turned over from the paper re-feeding tray 51, subjected to the second printing by the print unit, and conveyed to the paper discharge tray 32. The paper feed tray 21 and/or paper feed side plates 212, the paper discharge tray 32 and/or paper discharge side plates 323, the paper re-feeding tray 51 and/or paper re-feeding side plates 513 are movable in the width direction of the paper sheets, respectively. The center line C1 between the pair of paper feed side plates 212 and the intermediate line C2 between the pair of paper discharge side plates 323 are matched with each other, and during the conveyance from the paper discharge tray 32 to the paper re-feeding tray 51, the intermediate line C2 between the pair of paper discharge side plates 323 and the intermediate line C3 between the pair of paper re-feeding side plates 513 are matched with each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
