The only way I have been ableto use my scanner after the upgrade to High Sierra is as follows:Got to System Preferences, select Printers & Scanners, when menu pops up choose scanner. You will then see the image you have in the MX870 being scanned. Yo...
Can you help us by posting the link for downloading the 10.11 driver? I am on Cannon website and can't find it... If this works I will be overjoyed! Can't afford to buy a new printer/scanner and I use the MX870 every day! Thanks!