Changing the Sleep Timer Setting from
the Control Panel
You can use
the product's control panel to change the time period before the
product enters sleep mode.
Press the home button, if
necessary.
Select Settings >
Printer Setup > Sleep Timer.
Press the left or right arrow button to move the cursor
and press the up or down arrow button to adjust the number of
minutes of inactivity before the product enters sleep mode. Then
press the OK button.