/private/etc/cups/ppd/_1100_IPP_lpt1.ppd
/private/etc/cups/ppd/_1125_IPP_usb2.ppd
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/Resources/Fax.ppd
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/Resources/Generic.ppd