A device for controlling delivery of sheets from a stack includes a lift for a stack of sheets. The extension skirt includes a plurality of circumferential segments. In such an embodiment, the first portions preferably include different peripheral profiles than the second portions. The encoding or decoding operations are performed using databases containing the respective identifiers and components of the diagnostic information in the coded binary language and the human language. Other docking section configurations are also disclosed, such as an insert within the stent, an annular pocket, andor a set of fingers that grip the stent.