I have seen those Readme files you are talking about and if you look up at the top of the folder you will see the application file. I missed it a few times myself, but then noticed it up there in the top center of that window. Hope that works for ya.
3.1.5 is the version I use on my Mac OS High Sierra. Go back a couple of pages and look for my instructions on finding it on their website. I installed it on my Mac and it has worked fine ever since.
Go back a couple of pages and catch up. There are some solutions out there. Best solution is find a version of MP Navigator that will run. 3.1.5 works on High Sierra and worked just fine on my Pixma 870. Might work on yours.
Glad to hear it! It was just a hunch. Their recommendation was upgrade to latest version, but that version doesn't work with my MX870. So I started with the MX870 selected in their "downloads" section and kept backing down the OS from High Sierra,...
So I got my MX870 to work with MP Navigator 3.1.5 by doing the following: Go to the canon support site and navigate to where you put in your printer model. It autodetects the version of OS you are running...mine detected High Sierra. But click the ...