| 摘要 |
<p>PURPOSE:To prevent the excessive action of an alignment roller and an over- feed and prevent the damage applied to a printing face or a sheet itself by rotating the aligning roller alignment the sheet tip to a sheet tip target position only after the sheet tip reaches the position of the alignment roller until it reaches the sheet tip target position CONSTITUTION:A sheet 3 is carried in from a sheet carry-in path 5 and carried into an intermediate tray 1 from carry-in roller 6. The tip of the sheet 3 is detected by the first sensor 7 at this time. An alignment roller starts to be rotated at t1 after this detection, i.e., when the tip of the sheet 3 reaches the alignment roller 8, and the tip of the sheet 3 is conveyed toward a sheet stopper 2 at a sheet tip target position. When the tip of the sheet 3 reaches the position of a sheet detection roller 9, the sheet detection roller is driven by the movement of the sheet 3, the rotation is detected by the second sensor 12, the alignment roller 8 is stopped after t2, and the sheet 3 is stopped with its tip kept in contact with the sheet stopper 2.</p> |
