GNU/Linux Ubuntu 20.04 Canon Legacy Driver Dependencies Installation Guide
How to Install Needed Dependencies for Canon Printer Legacy Driver on Ubuntu 20.04 Focal LTS GNU/Linux desktop – Step by step Tutorial.
This because in origin the Canon Legacy Driver has been done for Ubuntu 12.04 Precise, and so we Need to Setup some of those Legacy Packages.
Finally, the Guide include detailed instructions about How to Install Canon Printer in Ubuntu.

1. Terminal Getting Started Guide
How to QuickStart with Command Line on Ubuntu GNU/Linux:
First Update the Apt Repo Sources with:
sudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.
And Login as Super User:sudo su
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