# Entering Sleep Mode

The sleep mode function reduces the amount of power consumed by the machine by disabling power flow to the operation panel. If no operations will be performed on the machine for a while, such as during a lunch break, you can save power simply by pressing on the operation panel. You can also use the Auto Sleep Time setting to automatically put the machine into sleep mode if it remains idle for a specified length of time. You can specify settings to change the interval at which the auto sleep function is performed or put the machine in sleep mode at a specified time.

##### When in sleep mode When the machine is in sleep mode, lights in green. ##### Situations in which the machine does not enter sleep mode The machine does not enter sleep mode when it is receiving data from or sending data to a computer, any of the covers is opened, or no toner cartridge is installed.

##### Selecting the Sleep Mode Level

The degree of energy consumption reduction effect of sleep mode differs with the selected level of the mode (Sleep Mode). To effectively save the power, we recommend that you use the machine with the factory default setting for sleep mode level. If you want to change the setting, follow the procedure below.
() <Control Menu> <Sleep Mode> <High (Deep Sleep)> or <Mid (Printer Sleep)>

##### Changing Auto Sleep Time

The machine automatically enters sleep mode if it remains idle for a specified length of time. We recommend using the factory default settings (Auto Sleep Time) to save the most power. If you want to change the amount of time that elapses before Auto Sleep is performed, follow the procedure below.
() <Control Menu> <Auto Sleep Time> Select the time

Immediately after the machine is turned ON, the length of time to elapse before the machine enters sleep mode may be longer than specified in the menu.

##### Automatically Entering/Exiting Sleep Mode at Specified Time

You can set the machine to enter sleep mode at a specified time. You can also set the machine to exit sleep mode at a specified time.
() <Control Menu> <Timer Settings> <Wake Up Timer> or <Sleep Timer> <On> <Wake Up Time> or <Sleep Time> Set the time

#### <Wake Up Timer>

Select <On> to automatically exit sleep mode at a specified time.

#### <Wake Up Time>

Set the time to automatically exit sleep mode.

#### <Sleep Timer>

Select <On> to automatically enter sleep mode at a specified time.

#### <Sleep Time>

Set the time to automatically enter sleep mode.

##### When You Want to Prevent the Machine from Entering Sleep Mode if an Error Occurs

You can specify settings so that the machine will not enter sleep mode when an error occurs. Sleep Even if Error
() <Control Menu> <Sleep Even if Error> <Off>

##### Exiting Sleep Mode

Press .
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