04-12-2016 12:08 PM
Dealing with the same issue, I did not find any of the previous solutions helpful until I explored the Default settings for printing. In Print go to Presets, in my case U.S. Legal size paper was selected, which would activate a rear cassette issue. In Page Setup I also noticed Paper Size was on Legal then changed it to Letter size and that took care of the problem.
Hope that helps. Thanks for all your contributions, which eventually got me on the right track! m.
02-19-2018 11:48 AM
This is the answer that helped me. On the printer itself, go to Copy menu, then Print Settings. Type was set to Matte. I changed it to Plain Paper, and the copy function started feeding from the cassette again. Two or three hours of my life I'll never get back!
08-23-2019 09:07 AM
I was able to fix this problem when printing from Outlook by going into "Define Styles" and change the setting there from rear tray to cassette. Question remains why in the middle of the night did this setting change? For years before it always printed from the cassette.