I have a System76 laptop running Ubuntu 20.04.2 LTS and an HP OfficeJet Pro 6978. For some reason, the printer stopped accepting any print jobs a few weeks ago, although it worked fine before. If I open the printer's IP address in a browser, it will print it's status report showing it's connected to my network router. Similarly, the HP Network Configuration page from HP Device Manager prints out and says it's connected. But it I try to print any document from the laptop, it won't print and it give this error: "Stopped - Backend /usr/lib/cups/backend/implicitclass does not exist! How can I fix this? Should I re-install the Ubuntu system or is there some easier way?
hp-setup
from the terminal. If the printer is not discovered, manually enter the IP address of the printer. Ifhp-setup
is not there install using the following command:udo apt install hplip hplip-gui
ls -l /usr/lib/cups/backend/implicitclass
give?