Comment 56 for bug 997040

Aurimas, can you do the following additional tests:

Update to cups 1.5.3-0ubuntu2~ppa13, make sure that the usblp module is not blacklisted and that the module is loaded. Turn off your printer and turn it on again.

Now run

lpadmin -p <queue> -o usb-no-reattach-default=true

to make the USB backend not reattach the usblp kernel module after a print job. Does this solve your problem?

Try with both Plug'n'Print active

sudo chmod +x /lib/udev/udev-configure-printer

and suppressed

sudo chmod -x /lib/udev/udev-configure-printer

Get back to the old state via

lpadmin -p <queue> -R usb-no-reattach

Always replace "<queue>" by your print queue name.

Try also manually reloading the usblp module via "sudo rmmod usblp; sudo modprobe usblp" after a job has completely finished (all pages have come out) and before sending the next job.