| 摘要 |
<p>A first printing unit (104) for forming a front image on one surface and a second printing unit (123) forming a back image on the other surface are respectively constructed with two stages of printing heads (105 - 120), (124 - 139). With respect to the image formed on one surface of a printing medium (101) by the first printing unit (104), the image formed on the other surface of the printing medium (101) by the second printing unit (123) is formed as a mirror image of bilateral symmetry about an axis in a transporting direction so that the image on the other surface is consistent with the image on one surface. <IMAGE></p> |
