To provide a holding member for denoising members optimizing a cable route according to presence/absence of an option by providing means for installing denoising members at a plurality of positions, thus reducing the noise and the cost.

The holding member for denoising members is configured to change and move a mounting and fixing position of a ferrite core 103 to a core holder 101 between a first position P1 and a second position P2 so as to provide a shortest optimal length in an option machine mounted on a one-bottle tray (a second positional relationship) in Figure 12(b) and to prevent mutual contact of flat cables 105 in a default machine (a first positional relationship) in Figure 12(a), thereby providing a low cost configuration.