Will also work for ubuntu 18.04
This is a step by step guide for installing Canon PIXMA G3400 Driver on Ubuntu 20.04 32/64-bit, and will allow you to print documents using the local network.
Step 1 – Download the debian here
Step 2 – extract the file in a new folder where you wish to save it
Step 3 – Once inside the folder, right click and choose “Open in Terminal”
Step 4 – Once in the Terminal, install the deb with the using following command: