Importance

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Abstract

A vertically arranged plurality of trays are each formed with a cut-out at a rear corner. The trays are arranged so that the corner where the cut-out is formed is lower than the other corners. Vertically upward extending rear and side walls are provided on each tray adjacent the cut-out. A downwardly extending side wall is formed on the tray opposite the upwardly extending one. The trays can be selectively shifted by cylindrical cams to positions wherein sheets of printed matter can be ejected thereonto. Due to the skewed angle of the trays the sheets slide to the corners where the cut-out are formed. After sheet collation a tray drawing device pulls a tray rearwardly to a stapler which fastens the sheets at the corners which extend into the cut-out. The tray drawing device then returns the tray, the trays are shifted vertically by the cylindrical cams, and the next tray is pulled to the stapler.

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First Claim