Looks like a compatibility problem of the adapter cable.
can you run the following commands in thge given order and post all their output:
lsusb lsusb -vvv sudo /usr/lib/cups/backend/usb sudo lsmod | grep usb sudo modprobe usblp sudo usb_printerid /dev/usb/lp0 sudo usb_printerid /dev/usb/lp1 sudo usb_printerid /dev/usb/lp2 sudo rmmod usblp
Note also that HPLIP recognizes only directly connected or network printers. In addition, the PPA printers, like the 710 are not supported by HPLIP and therefore not detected by HPLIP.
Looks like a compatibility problem of the adapter cable.
can you run the following commands in thge given order and post all their output:
lsusb cups/backend/ usb
lsusb -vvv
sudo /usr/lib/
sudo lsmod | grep usb
sudo modprobe usblp
sudo usb_printerid /dev/usb/lp0
sudo usb_printerid /dev/usb/lp1
sudo usb_printerid /dev/usb/lp2
sudo rmmod usblp
Note also that HPLIP recognizes only directly connected or network printers. In addition, the PPA printers, like the 710 are not supported by HPLIP and therefore not detected by HPLIP.