With 2020, there are some updated printing requirements.  You will need to have a printing driver with PCL 5e or above installed.  If you installed your printer by just plugging it in and using the windows driver, then you will need to remove the device and go get the driver directly form your printer manufacturer.  And make sure it is PCL 5e or above (for example PCL 6).  This will solve your 2020 printing issues if you have no problems printing in 2019 from the same computer.