How do I take KM-2550 copier off power save mode?

1. Press the System Menu/Counter key.
2. Press the UP key or the DOWN key to select Machine default.
3. Press the Enter key.
4. Use the numeric keys to input 2500
5. Scroll down to "Sleep Mode Time" and use the arrow keys to set from 1 to 240 minutes. then press the ENTER key.
6. Scroll down to "Low Power Time" and use the arrow keys to set from 1 to 240 minutes, then press the ENTER key.
7. Back out of the menu and your done!
I setup ALL our machines to 240 minutes. This means if you don't use the machine in 4 hours, it shuts itself off.