A method of depositing and crystallizing materials on a substrate is disclosed. An obstruction structure is coupled to move relative to the opto-interrupt sensor when the media guide is translated and provides one or more fins to selectively block or open the optical signal path of the opto-interrupt sensor, with the sensed media width being determined according to the output signals of the opto-interrupt sensor and the potentiometer. Events are queued and if indexable, indexed and stored for user access through the search engine. A second display is also provided on an outer surface of the second housing. The instrument comprises a tube assembly, and an end effector assembly operably supported thereby, where the end effector assembly includes a positioner assembly and an anchor driver assembly in operable mechanical communication with a handle, for use in performing anastomotic procedures.