How to install printer Canon Pixma iP1800 on (x)ubuntu 20.04

I received answer from Mr. Thierry. He's guy who maintains repository for Canon printer drivers for Linux

sudo add-apt-repository ppa:thierry-f/fork-michael-gruz

Hi,

I am not Michael Gruz, I have taken over his work and modernized it. ia32 does not exist anymore.

Ubuntu has decided to ban the i386 from PPAs since version 20.04

I suggest you use the Disco (Disco Dingo = Ubuntu 19.04) versions, they are compatible. From now on, you have to proceed differently, I give you the procedure below:

sudo dpkg --add-architecture i386

wget https://launchpad.net/~thierry-f/+archive/ubuntu/fork-michael-gruz/+files/cnijfilter-ip1800series_4.10+3.5.4-1904ubuntu1_i386.deb
wget https://launchpad.net/~thierry-f/+archive/ubuntu/fork-michael-gruz/+files/cnijfilter-common_4.10+3.5.4-1904ubuntu1_i386.deb

sudo apt update
sudo dpkg -i --force-all ./cnijfilter-ip1800series_4.10+3.5.4-1904ubuntu1_i386.deb ./cnijfilter-common_4.10+3.5.4-1904ubuntu1_i386.deb
sudo apt install -f

Thierry

This solution works for my 2 computers with Ubuntu Mate 20.04 and Xubuntu 20.04 like a charm