5Reinsert the tray until it locks in place.
The Paper Tray Gauge
The paper tray gauge indicates the amount of paper left in Tray 1, eliminating the need to open the tray to check.
Selecting Paper Size & Media Type
Factory settings:
Paper Size: automatically determined by position of paper
tray guides
Media Type: optimized for printing on
If you are consistently using another type of media in the paper tray, you can change the setting to match what you are using: see Changing Media Type for Tray 1 under Printer Menus in the Printer Control section of the User’s Guide.