PIXMA TR8620a keeps trying to print from the rear tray

[Raydar]

It's been a while now that my 8620a keeps trying to print from the rear tray and error shows up on every single print job saying no paper in the back tray. I've already restarted the printer and no luck. Feels like some sort of sensor in the back is broken and makes it think it's open while the back tray is fully closed.

[EssJay]

Thank you. I downloaded the new driver and printed a test page, I found a setting to select the cassette to print from, and the rear tray was no longer an issue but the test page came out blank. When I try to print my document nothing happens at all, no error message and no printing.

[onebigassdog]

Has there been an actual resolution for this issue? 
I have 2 Cannon Printers. I just purchased a Cannon TR8620a. I printed one document a few days ago. I am trying to use the printer now and despite resetting the computer, re-installing the software, changing the cassette settings it still wants to print from the rear tray which I have never used that setting. This is my second Cannon with the same rear tray printer issue. I still cannot resolve the issue on the Cannon G6000 series(which also stopped printing all together even though it has plenty of ink in it). This is becoming very frustrating. Where are all the old printers, connect, set up, hit print and it prints. There is no reason a brand new printer only days old should be doing this. 

[Stephen]

Hello!

I'm sorry to hear you're having trouble with your printers. This problem often happens when your computer defaults to the non-Canon drivers. If you install or reinstall the Canon software and drivers, you will be able to select the desired paper source. The current software and downloads are available from within your Canon Account, but the quickest fix is to reinstall from the setup site. 

The G6000-series printer is likely the PIXMA G6020 -- you can verify the exact model from the front panel of the printer. You can get the correct software for it from your Canon Account or

Here are shortcuts to everything:
Canon Account: https://canon.us/account 
The main setup site: https://canon.us/setup 
Setup for your new PIXMA TR8620a: https://canon.us/TR8620asetup 
Setup for PIXMA G6020: https://canon.us/G6020setup