My apologies re this old printer. I picked up a cheap laptop recently that is running WIndows 10 and the driver supplied with the Canon printer works OK there.

I managed to get the printer working some years ago on an earlier release of Ubuntu, 14.04
At that time this was helpful but has not helped today:
http://ubuntuhandbook.org/index.php/...-ubuntu-14-04/
.
Please is there a way of getting the printer to work on my main laptop that runs Ubuntu 18.04?