Epson EMP-1715/1710 - Manual (Page 39)

List of Functions 39
Reset Menu
Sub Menu Function
Reset All You can reset all items in all menus to their default settings.
The following items are not reset to their defaults: "Computer Input", "User's Logo", "Multi-screen", all items for "Network" menus, "Lamp Hours",
and "Language".
Reset Lamp Hours You can clear the cumulative lamp hours use time, and return it to "0H". Reset when you replace the lamp.