11-14-2019 10:01 AM
I ran into this same problem, 'Filter failed', yesterday. Came out of nowhere...printer was working on Catalina too.
I wish I could tell you how I fixed this, but I spent so much time on it, and tried so many different things, I just don't know what I did that actually fixed it. But did the following, not sure of the ordering: I removed the 'Canon' directory, maybe from under /Library? I reset the printer system from the system preferences dialog; I rebooted. When I added the printer, the system preferences installed the driver - said something like "files missing, downloading them now". So I wonder if having the system preferences install the driver did the trick - rather than downloading and installing the driver (v16.20.00) from Canon which I did but, but did not seem to work. However, to get the scaner to work, I installed the scanner driver from the canon website...but after I got the device to print first. Not sure this helps...Canon - what a mess.