A method and system for printing image documents using a variety of toners where some toners using a multi-development station having two or more development stations. The flow deviating device comprises at least one Coanda effect deviating device. The back wall has at least one co-extruded hinge that enables the back wall to pivot to allow the one-piece corner duct to conform to a corner of the enclosure. The gate extends along the zigzag trench. The number of nozzles are in fluid communication with the feed pipes. The element then decrypts the encrypted program key using its own version of the symmetrical key.