Check in GSlapt that you are using hplip 2.8.12
I was using 3.9.2
Downgraded to 2.8.12
Although I can see and select the appropriate ppd in cups I no longer have an option for a usb printer. Cups seems to think it is a network printer.
I can still locate it with lusb
Bus 001 Device 006: ID 03f0:7f11 Hewlett-Packard
I do not know how to find the proper URI. Although for a USB printer I do not think I require a URI.
cannot locate the printer