After trying around 15 times, I figured it out!!! -- While the "detect" phase of the installation is underway (the part where it tells you to plug in the USB cable and wait), you have to go to the printers LAN settings and start going to the menus --...
http://support-hk.canon-asia.com/contents/HK/EN/0200328115.html This worked perfectly! I'm using a PIXMA MG8210 and have OSX High Sierra. Many thanks to the OP. I can't believe Canon isn't just making software available worldwide.
