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.
Gary, 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.
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.