so this is a large-format printer; the drivers are accessed on the business side of the Canon site, as opposed to the usual personal side of the site
can we check the drivers please: can you copy and paste this command into a terminal, and paste back the results
sudo dpkg -l | grep cprint
from what I see you would have downloaded two tar.gz files ......... w98c4mux.tar.gz
one should 1) install the 4mux first; as it is the common file
; and 2) then the 8mux as it contains the ipf820 specific files
so my understanding of the commands would be.........assuming you download your downloads into the Downloads directory ........
tar -zxvf w98c4mux.tar.gz
..........that creates a directory cprint-core-en-1.0-0
so the next command I think should be
and then do as Canon recommend .......
and to install the specific file I would suggest
tar -zxvf w98c8mux.tar.gz
......that creates a directory cprint-ipf820-en-1.0-0
so it seems to me one would say
and then do again as Canon recommend in the readme
The documentation will be found in: /usr/share/doc/CPrint1.0 where you will find a QuickInstallation manual and a Reference Manual.
......was that what you did?