This is a stacking tray especially useful in a paper marking system. When papers containing an ID or credit card attached are stacked, an uneven stack results where the card portion is thicker than the paper without the card. This presents a difficult situation for moving the stack onto a transport to a printer or other stations. To correct this uneven or thicker stack from hindering paper feed, two paper plate supports are provided, one a vertically movable plate and the other a fixed plate support. The ID card or credit card portion of the paper is always loaded onto the vertically movable plate thereby providing a substantially flat top stack for easy movement of the sheets from the stack.