You can
control whether the paper settings selection screen appears after
paper is loaded.
Press the home button, if
necessary.
Select Settings.
You see a screen like this:
Select Printer
Settings.
Select Paper Source
Setting.
To enable or disable the automatic display of the paper
settings selection screen after paper is loaded in the cassettes,
select the appropriate Paper Setup Auto
Display setting.
Note:
You will be unable to print over AirPrint if you disable this
setting.