Paul L, and everyone else, please run the following commands in a terminal window:
sudo /usr/lib/cups/backend/usb sudo usb_printerid /dev/usb/lp0 sudo usb_printerid /dev/usb/lp1 lsusb ls -l /dev/usb/lp* /dev/bus/usb/*/*
Post the output here.
Paul L, and everyone else, please run the following commands in a terminal window:
sudo /usr/lib/ cups/backend/ usb
sudo usb_printerid /dev/usb/lp0
sudo usb_printerid /dev/usb/lp1
lsusb
ls -l /dev/usb/lp* /dev/bus/usb/*/*
Post the output here.