A memory optimization method for a MP3 decoder. The power semiconductor module has a first heat dissipation portion and a second heat dissipation portion facing the first heat dissipation portion. Methods for cementing a casing and liners and for remedial operations such as plugging back and squeeze cementing are also provided. An additional threshold can be used to display extra view markers as an additional aid or guide to the radiologic technician to take extra views of a patient before the patient is released or discharged. A projection of an opening, positioned at a most downstream end in an ink flowing direction from the supply passage in the common ink chamber, on the first member in a connecting direction straddles a contour of the common ink chamber.