Note that my fixes for USB->Parallel adapters are ONLY available in Oneiric+PPA and Precise.
So you have to boot Oneiric and apply all Oneiric updates from my PPA, this works in the live session. Then try the things which I asked you for in previous comments: Plug the adapter to the computer's USB with the printer turned on and connected to the parallel end, see whether you get a print queue automatically, system-config-printer popping up for manual model selection, or whether you can create a queue with system-config-printer. Run
sudo /usr/lib/cups/backend/usb
and see if it shows an entry for your printer, if it crashes, run it again with the adapter disconnected. Run
Note that my fixes for USB->Parallel adapters are ONLY available in Oneiric+PPA and Precise.
So you have to boot Oneiric and apply all Oneiric updates from my PPA, this works in the live session. Then try the things which I asked you for in previous comments: Plug the adapter to the computer's USB with the printer turned on and connected to the parallel end, see whether you get a print queue automatically, system- config- printer popping up for manual model selection, or whether you can create a queue with system- config- printer. Run
sudo /usr/lib/ cups/backend/ usb
and see if it shows an entry for your printer, if it crashes, run it again with the adapter disconnected. Run
sudo strace /usr/lib/ cups/backend/ usb > log.txt 2>&1
and attach log.txt if the usb backend in your Oneiric session crashes.