Epson 3880 - which utilities to run when first setting up printer?

I found a piece of paper in the printer box.  It says

"POWER TURN OFF TIMER"

A POWER OFF TIMER item has been added to the MAINTENANCE MODE menu.  See the documentation provided with the printer for more information on the MAINTENANCE MODE menu.

On the menu, you're supposed to be able to select the delay before the printer turns off automatically when no errors occur, no print jobs are received, and no control panel or other operations are performed...

SO, I went INTO the Maintenance menu on the printer.  There is ABSOLUTELY no "POWER TURN OFF TIMER" that I can find in the list...  There's no reference I can find in the User Manual, AND, I can't find a single reference to this in any forum or at Epson.