In the Library/Printers folder I have a folder called PPD which contains references to HP,Brother, Lexmark, Samsung and various other printers which I don't have. Plus I have separate folders dedicated to Brother and Lexmark printers also. As I only have an Epson Stylus Photo R360 plus a Canon Pixma Pro 10 printer, can I delete all these other files and folders and just keep the PPD files relating to my two printers?