Specifying paper size automatically for a standard or optional paper feed tray

Press the [Menu] key.

Press the [ ] or [ ] key to select [Paper Input], and then press the [OK] key.

Press the [ ] or [ ] key to select [Paper Size: (tray name)], and then press the [OK] key.

Select [Auto Detect] using the scroll keys, and then press the [OK] key.

Press the [Menu] key to return to the initial screen.