Lexmark CX825
Sleep mode
From the home screen, touch Settings > Device > Power Management > Timeouts > Sleep Mode.
Specify the amount of time that the printer stays idle before it enters Sleep Mode.
Hibernate mode
From the home screen, touch Settings > Device > Power Management > Timeouts > Hibernate Timeout.
Select the amount of time that the printer stays idle before it enters Hibernate mode.
Notes:
Know when the printer receives incoming fax messages by configuring the fax speaker mode and volume.
Manually assign a specific paper size not available in the printer paper menu.