In a medium fixing method of fixing one or a plurality of mediums on a shaft while the one or plurality of mediums each having a circular opening portion in a substantially center are stacked and the shaft is inserted into the opening portions, the mediums are fixed to the shaft while the mediums into which the shaft is inserted are guided with a fluid. 1 to 90% by weight of a mixture, based on the uncoated substrate, which comprise the condensation product of 99. The acoustic resonance of the chambers amplifies the noise control energy. The fuser assembly can include a fuser nip that can have a fuser nip width parallel to the media sheet travel direction. The second adjustable ring, connected to the first adjustable ring so as to be selectively removable, encompasses the first adjustable ring and is independently inflatable to selectively adjust the area of the cover over a second range of areas. The method is characterized by thermal spray deposition of the semiconductor material in a on a temperature controlled rotating mandrel that is shaped complementarily to the desired article shape, and by later separation of the formed semiconductor body from the mandrel by thermal contraction, melting, or chemical reduction of the mandrel size.