The Konica C220/C280/C360 (Develop ineo+ 220/+ 280/+ 360) is equipped with Energy Saving features to reduce your power consumption.  You can adjust these using the settings below. 

Press Utility/Counter Button> Admin Settings (enter password, default = 12345678) > System Settings > Power Save

Set the following for Maximum Power Savings or variations there of.

Change Low Power to 2 minutes 

Change Sleep 2 minutes 

Change Power Save Key set to  SLEEP

Change Enter power save mode – Immediately  

Press Ok

Press Close three times to save.