Here Driver Booster will notice that your Canon scanner driver is problematic and you will be prompted to update the drivers.
Its not possible to upgrade and install drivers over each other after an upgrade when printing/scanning, etc is already 'broken'.
Then install the printer using compatibile drivers. If you chose not to upgrade to windows 10, the canon products listed below will continue to work with your current operating. I would suggest removing the printer from Control Panel > Device and Printers, then uninstall all Canon related software (Programs and Features. Bear in mind that if you upgraded os with the cannon scanner driver remaining installed, you may not scan by pressing the scan button on the product. Source: Download canoscan software for windows 10 for free. Then choose to Scan for the missing, outdated, and faulty drivers on your PC. If you havent installed a windows driver for this scanner, vuescan will automatically install a driver.
Canon PIXMA MG6100 Wireless Inkjet Photo All-in-One, Canon PIXMA MG6100 Driver High-Performance Wireless1 Photo All-In-One with Intelligent Touch System, Gray Ink, and Built-In Auto Duplex Printing. can be an innovative wi-fi inkjet photograph all-in-one using a trendy, compact design delivering an amazing mixture of functionality and convenience. Download, install and run Driver Booster on Windows 10.