Follow this procedure to change the paper size setting.
[Paper Settings] repeatedly to select <CASSETTE> or <MP TRAY>, then press [OK].
If <LOAD CORRECT PAPER> appears during a copy job, you cannot access the paper size setting through [Paper Settings]. In this case, cancel the job first, then press [Paper Settings] and change the paper size setting. For how to cancel copy jobs, see "Canceling Copy Jobs."
Press [] or [] to select the paper size same as paper loaded into the machine, then press [OK].