Don, Aaron, Raghu: My suggestion is that also the fax PPD should be assigned by CUPS, so if it floats around in the future HPLIP versions it will not depend on a path hard-coded into a config file. The assignment of the fax PPD by CUPS is used in the CUPS web interface and in system-config-printer and is absolutely reliable.
Don, Aaron, Raghu: My suggestion is that also the fax PPD should be assigned by CUPS, so if it floats around in the future HPLIP versions it will not depend on a path hard-coded into a config file. The assignment of the fax PPD by CUPS is used in the CUPS web interface and in system- config- printer and is absolutely reliable.
Reopening upstream task as a feature request ...