A wiping member for wiping the nozzle forming surface of a recording head is mounted on a holding member and is constituted to be moved in a vertical direction. Also included in the dispensing units are rails for holding dividers that allow the units to hold tickets of different sizes and ticket fasteners that permit the tickets to be displayed at the front of the units. Such multipath channel emulation system is used for testing the ability of wireless communication devices to operate in an airlink channel characterized by multipath. Also shown is a process for the manufacture of an appetite reducing composition. The diagonal XOR calculation chains may then be terminated after processing the words in this sampling cycle to derive an intermediate diagonal parity word. The manufacturing method comprises a step of depositing an inorganic protection layer on the mirror before separating the micro-mirror devices from the wafer and a step of removing the inorganic protection layer after separating the micro-mirror devices from the wafer.