I am assuming you meant for a MX882 model and not a MX822 model. Canon Canada still has posted the drivers and software for the MX882:https://canoncanada.custhelp.com/app/browse/a_status/published/channelRecordID/DRIVERS_AND_SOFTWARE/pageSize/25/prod...
When I had to reinstall a fresh copy of Windows on my laptop, I was sad that Canon simply pulled the drivers for my PIXMA MG8200 for Canon USA's site. I had to get them from Canon Canada's site. You can get them for your MG6220 here from Canon Canada...
If your WiFi network changed where the 2.4GHz band has "WPA2/WPA3 Mixed Personal" or "WPA3 Personal," as the security option, roll the setting back to "WPA 2 Personal" and set-up the connection on your PIXMA again. It is works after that, then you ca...
You do not need the CD. In fact, just like other devices, you can get the newer software and drivers on the Internet. For the MX420, you can download everything from here: http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mx...