Patent ID: 7621710

Claim:
A work sheet conveying and housing system comprising: a work sheet stocker in which a plurality of work sheets can be housed; and a work sheet conveying device that conveys a work sheet to said work sheet stocker, wherein said work sheet stocker has: a stocker frame having a tray housing portion with a plurality of stages; and trays which are provided on the respective stages of a tray housing portion and a position of which can be freely switched between an inner position where said trays are housed in said tray housing portion and an outer position where said tray are drawn out of said tray housing portion, and wherein said work sheet conveying device has: a means for holding the work sheet; and a means for moving said means for holding the work sheet parallel to a position switching direction corresponding to a direction in which said trays are drawn out, said means for moving said means for holding the work sheet parallel to said position switching direction to switch a position of an uppermost one of said trays in the plurality of stages located at said outer position, to said inner position simultaneously with establishing a work sheet placing condition in which said means for holding the work sheet is positioned above a work sheet placement target tray that is a tray located one stage below said uppermost tray.