If the installation of the PPA package of CUPS does not solve your problem, run the following commands in a terminal window, also with the printer connected and turned on:
sudo modprobe usblp lsmod | grep usb sudo usb_printerid /dev/usb/lp0 sudo usb_printerid /dev/usb/lp1
Post all the output here. Run also these commands
sudo usb_printerid /dev/usb/lp0 > id0.txt sudo usb_printerid /dev/usb/lp1 > id1.txt
and attach the two files to this bug report. Do not compress or package together these two files.
After that run the command
sudo rmmod usblp
If the installation of the PPA package of CUPS does not solve your problem, run the following commands in a terminal window, also with the printer connected and turned on:
sudo modprobe usblp
lsmod | grep usb
sudo usb_printerid /dev/usb/lp0
sudo usb_printerid /dev/usb/lp1
Post all the output here. Run also these commands
sudo usb_printerid /dev/usb/lp0 > id0.txt
sudo usb_printerid /dev/usb/lp1 > id1.txt
and attach the two files to this bug report. Do not compress or package together these two files.
After that run the command
sudo rmmod usblp