Can you try the following:
Remove the print queue for your printer if there is one. Then unplug your printer. Ubibstall foo2zjs via the following command in a terminal window:
sudo dpkg -P --force-depends foo2zjs
Now plug in your printer again. Does the firmware loading work now?
Follow also the "USB printer" instructions on https://wiki.ubuntu.com/DebuggingPrintingProblems
Can you try the following:
Remove the print queue for your printer if there is one. Then unplug your printer. Ubibstall foo2zjs via the following command in a terminal window:
sudo dpkg -P --force-depends foo2zjs
Now plug in your printer again. Does the firmware loading work now?
Follow also the "USB printer" instructions on https:/ /wiki.ubuntu. com/DebuggingPr intingProblems