Abstract: An apparatus for positioning a workpiece guiding fence relative to a rotary cutter projecting through the top surface of a work table, comprising a plurality of major components, primarily formed by aluminum extrusions, including a base element securable to the work table surface and having upstanding guiding ribs, an elongated hollow carriage slidably mounted on said ribs and defining a partially cylindrical elongated recess mounting an elongated lead screw. A fence is secured to one end of the carriage. A threaded segment is mounted on a force transmitting element which is moved laterally to engage the threaded segment with the lead screw by a pivoted camming lever having three positions. In the first position, the threaded segment is disengaged from the lead screw, permitting unrestricted longitudinal movement of the carriage relative to the base.

Abstract: A lockbox is provided for a word processor printer output bin attached to a printer. The lockbox, which is insertable and removable from the output bin, is locked in the bin upon insertion, and can only be removed by disengagement of a first locking means. The lockbox has a security door which is positioned in a paper receiving position upon insertion into the output bin and which must be closed in order to remove the lockbox from the output bin.

Abstract: A scanning mechanism is provided for scanning individual output bins for receiving documents from a paper printer. The mechanism determines each bin's availability for receiving documents, the degree of fullness and whether or not a lock box is positioned in the bin for receiving designated documents.

Abstract: A connecting and alignment mechanism for printer output module cabinets having facing adjacent wall members, comprising vertical positioning male-female docking channels and lateral positioning docking pins and recepticles.