| 摘要 |
PURPOSE:To carry out paper alignment exactly and easily even for thin sheets of paper. CONSTITUTION:A fan 6 is mounted, toward plural sheets of paper 2, above a paper dropping part 5 in the discharged sheet base 4 of the sheets of paper 2 after printing, and an air flow straightener 7 which moves air blowing position for the plural sheets of paper 2 to both outsides from the center is also mounted. By controlling the rotational speed of the fan 6 based on printing speed, the rotational speed of the air flow straightener 7 and the fan 6 is controlled based on the printing speed, and air is blown to both the outsides from the center of the plural sheets of paper 2 at the time of every paper discharging for air venting, thus aligning the plural sheets of paper exactly on the paper discharging base 4. |
