| 摘要 |
PURPOSE:To certainly prevent the double feed of form sheets by constituting an adsorbing means from two kinds of pumps each of which has a different discharge flow amount, etc. and selectively operating said pumps, when the edge parts of the form sheets on a tray are separated each other by the jetted-out air and the uppermost form sheet is adsorbed by adsorbing means and transported in separation. CONSTITUTION:When a start instruction is transmitted, an air injection means 10 and na adsorbing means 40 operate, and a form-sheet positioned on the stacked form sheets on a tray 2 is separated and floated by the air jetted-out from a nozzle 13a. When a feed instruction is transmitted, the uppermost form sheet 1a is adsorbed onto the undersurface of a transportation belt 3 by the action of the adsorbing means 40, and after the lapse of a prescribed delay time, the form sheet 1a is sent forward by the turn of the transportation belt 3. In this case, the adsorbing means is constituted of a pump 41 having a large flow rate and a low pressure and a pump 42 having a small flow rate and a high pressure, and the pump 41 is operated before the form sheet 1a is adsorbed onto the transportation belt 3, or the pump 42 is operated after said adsorption selectively. |
