A method of gap detection between successive adhesive layers on a media carrier using reflective florescence. The mechanism includes a locking link and sector members rotatably supported on the locking link. A feature of the novel template of the present invention is in its employment of one or more zones of discontinuity, or undercuts, associated with the patterns transferred into the template to allow for the removal of the thin film from the template without sacrificing the structural integrity of the template to prevent at least one re-use of the template. A second warning unit controls a warning device to produce at least a warning sound indicating the defective condition of the device. The valve plate has lip extending from a portion of the valve plate that is radially outward from the circumference of the tube. Biasing operations may include, for example, ranking, prioritizing, or filtering search results to favor results that may be consumed by a client device.