Did you reboot after your last update, to assure that you are really running the new kernel?
Does normal printing on your HP Deskjet 6940 work correctly for you?
Can you provide an error_log as described in the CUPS error_log section of https://wiki.ubuntu.com/DebuggingPrintingProblems?
Did you reboot after your last update, to assure that you are really running the new kernel?
Does normal printing on your HP Deskjet 6940 work correctly for you?
Can you provide an error_log as described in the CUPS error_log section of https:/ /wiki.ubuntu. com/DebuggingPr intingProblems?