Sheet supplying device

Details Sheet supplying device Sheet supplying device

2007-04-03

2007-04-03

Mackey, Patrick (Department: 3653)

Sheet feeding or delivering

Feeding

Separator and conveyor

C271S094000, C271S098000, C271S010020, C271S104000

Reexamination Certificate

active

10977760

ABSTRACT:
In a sheet supplying device for feeding a sheet from a sheet stack configured by stacking plural sets of sheets collated by page order, each of which corresponds to one volume, for each set of sheets, in a state where the sheets are superimposed on one another so as to be sequentially offset from one another in a fore-to-aft direction, the sheet supplying device comprises: first transport means2for sucking a sheet in an uppermost position of a sheet stack P placed on a sheet table1so as to move the sheet rearward; second transport means3for sucking the sheet moved rearward by the first transport means2so as to transport the sheet forward; and a control unit9controlling suction operations of the first and second transport means2, 3. The control unit9(i) allows the first transport means2to start the suction operation, and allows the first transport means2to suck the sheet in the uppermost position so as to move the sheet rearward, (ii) when it is determined on the basis of a detection signal from a sensor4that the sheet has reached a detection position of the sensor4, allows the first transport means2to stop the suction operation and, also, the second transport means3to start the suction operation, allows the second transport means3to suck the sheet so as to transport the sheet forward, and allows the second transport means3to stop the suction operation, and (iii) repeats the operations (i) and (ii) for the subsequent sheets of the sheet stack P, until the sheets in a set of sheets, which corresponds to one volume, arm all transported.

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