Canon Community

I was printing an this morning and it was printing fine through the main cassette.  I chose another item to put in cue and suddenly it all started to print from the rear tray.  Of course, I received a message no paper as I only print photos from that...

I had a page that I wanted to print and selected print.  All settings showed correctly.   After a moment I got the message no paper in tray.   I checked and plenty of paper.  Selected print again and same result; however, I was by the printer and saw...

I have a new Macbook Pro and the Canon printer will not give me the option to print 2 sided.  Have gone to the old Macbook and print 2 sided with no problem.  Running Catlina 10.15.1.