Mac Mini: Remove Canon printer drivers after trashing

Hello. I have an older Mac Mini, running macOS Catalina, version 10.15.7. I was having glitches with my Canon printer/scanner after clicking overview scan. So I wanted to remove the printer and reinstall the printer drivers. Instead of removing the printer using the minus (-) sign, I drug it to the trash, and it is now gone/disappeared.

How do I find whatever drivers need to be removed so I can reinstall the drivers and add the printer again? I'm afraid I'm going to delete something important and won't be able to download the printer/scanner drivers and start fresh. All of the folders look confusing. I don't know what's what.