Can you run the following commands (printer must be connected and turned
on):

ls -l /dev/lp* /dev/parport*
sudo chown lp.lp /dev/lp* /dev/parport*
ls -l /dev/lp* /dev/parport*
lpinfo -v
/usr/lib/cups/backend/parallel
sudo /usr/lib/cups/backend/parallel
sudo chmod 666 /dev/lp* /dev/parport*
ls -l /dev/lp* /dev/parport*
lpinfo -v
/usr/lib/cups/backend/parallel
sudo /usr/lib/cups/backend/parallel
sudo chown root.lp /dev/lp* /dev/parport*
sudo chmod 660 /dev/lp* /dev/parport*
ls -l /dev/lp* /dev/parport*
sudo chmod 700 /usr/lib/cups/backend/parallel
ls -l /usr/lib/cups/backend
lpinfo -v
sudo /usr/lib/cups/backend/parallel

Please execute the commands in the given order and post the output of
all the commands here.


** Changed in: cups (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/885883

Title:
  Ubuntu 11.10 Parallel printer not detected

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