Epson LightScene EV-115 2200-Lumen WXGA Laser 3LCD Projector (Black) - Manual (Page 158)

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Projector Reset Options - Reset Menu
You can reset most of the projector settings to their default values using the Reset All Config option on
the Reset menu.
Setting Options Description
Refresh Mode — Projects a black image for a selected amount of
time to maintain projector image quality; Refresh
Mode ends and the projector turns off automatically
during message broadcasting or if an error
message occurs
Note: Refresh Mode should be performed regularly
to maintain projector image quality