same when
    you pronounce them are considered equal. Printer manufacturers do not
    market two models whose names sound the same but differ only by
    upper/lower case, spaces, dashes, ..., but in printer drivers names can
    be easily supplied with these details of the name written in the wrong
    way, especially if the IEEE-1284 device ID of the printer is not known.
    This way we get a very reliable matching of printer model names.
    Examples:
    - Epson PM-A820 -> epson pm a 820
    - Epson PM A820 -> epson pm a 820
    - HP PhotoSmart C 8100 -> hp photosmart c 8100
    - hp Photosmart C8100  -> hp photosmart c 8100

    @type strin: string that can be the make or the model
    @return: a normalized lowercase string in which punctuations have been replaced with spaces.
    r