Epson PowerLite 2250U 5000-Lumen WUXGA 3LCD Projector - Manual (Page 180)

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You can also reset the projector's lamp usage timer to zero when you replace the lamp using the Reset
Lamp Hours option.
You cannot reset the following settings using the Reset All Config option:
• Input Signal
• User's Logo
• Schedule Settings
• Language
• Network menu items
• Lamp Hours
• Password
• Date & Time
• Color Matching
• Display Background
• Startup Screen
• A/V Mute
Parent topic: Adjusting the Menu Settings