Multi-position collation system with retracting guides

A system for collating a plurality of media comprising:

• a first bin;
• a second bin arranged adjacent to the first bin;
• a collated stack receiver arranged proximate the second bin opposite the first bin;
• first, second and third guides, the first and second guides positioned on opposing sides of the first bin, and the second and third guides positioned on opposing sides of the second bin;
• a movable wall arranged generally perpendicular relative to the first, second and third guides, the movable wall and the first, second and third guides forming three sides of the first and second bins, the movable wall is translatable in a process direction;
• a pusher,
• wherein when the first, second and third guides are positioned in non-retracted locations, a first set of the plurality of media is deposited in the first bin and a second set of the plurality of media is deposited in the second bin, and when the first, second and third guides are positioned in retracted locations, the pusher moves the first set to the second bin vertically above the second set to form a first combined set and moves the first combined set to the collated stack receiver, and
• wherein a position of the movable wall is varied based on characteristics of the plurality of media.