| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printing device that can print even on printing paper of undefined size and properly detect multiple-sheet feeding. <P>SOLUTION: A length of a form in a conveyance direction before the form is turned over and a length of the form in a conveyance direction after the form may be turned over are measured using a form path which guides the form so that the form is turned over utilizing an inversion path 13 during both-side printing, and multiple-sheet feeding is detected when the length of the form in the conveyance direction after the form is turned over is longer than the length of the form in the conveyance direction before the form is turned over. <P>COPYRIGHT: (C)2012,JPO&INPIT |
