Boot a live CD (or USB stick) of Precise on a machine where your printer is connected to. Set up the printer in the live session (if it does not get set up automatically) and run
grep -i gutenprint /etc/cups/ppd/*.ppd
This should show the version number 5.2.8-pre1 in the output.
Now follow the instructions of comment #25 in the live session so that your gutenprint gets updated to the proposed package.
Run
grep -i gutenprint /etc/cups/ppd/*.ppd
again and the version numbers in the output should have changed to 5.2.8, without pre1.
Marcin, can you do the following test:
Boot a live CD (or USB stick) of Precise on a machine where your printer is connected to. Set up the printer in the live session (if it does not get set up automatically) and run
grep -i gutenprint /etc/cups/ppd/*.ppd
This should show the version number 5.2.8-pre1 in the output.
Now follow the instructions of comment #25 in the live session so that your gutenprint gets updated to the proposed package.
Run
grep -i gutenprint /etc/cups/ppd/*.ppd
again and the version numbers in the output should have changed to 5.2.8, without pre1.
With this the fix would be verified.