Patent ID: 6845977

Claim:
A variable print media sheet sizes stacking tray for sheet feeding, which stacking tray has a large stacking surface area and adjustable sheet stacking edge guides for stacking a wide range of different sizes of print media sheets for sheet feeding in a variable size sheet feeding area of said large stacking surface area, wherein said stacking tray has at least one upstanding fixed said sheet stacking edge guide and at least one upstanding repositionable said sheet stacking edge guide which is repositionable relative to said fixed sheet stacking edge guide over a substantial portion of said stacking surface area for stacking different said print media sheet sizes in said variable size sheet feeding area which is formed between one side of said repositionable sheet stacking edge guide and said fixed sheet stacking edge guide and which also defines a non-stacking area of said large stacking surface area on the other side of said repositionable sheet stacking edge guide; wherein a sheet stacking obstruction system is operably connected to said at least one upstanding repositionable said sheet stacking edge guide to reposition therewith, said sheet stacking obstruction system automatically obstructing the stacking of said print media sheets in said defined non-stacking area of said large stacking surface area, said sheet stacking obstruction system automatically varying in length with said repositioning of said at least one upstanding repositionable said sheet stacking edge guide, and said sheet stacking obstruction system extending substantially above said large stacking surface area of said stacking tray, Wherein said sheet stacking obstruction system is a reelable stacking obstruction member which reels or unreels with repositioning of said at least one upstanding repositionable said sheet stacking edge guide.