Epson BrightLink 1485Fi 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw 3LCD Interactive Laser Projector - Manual (Page 116)

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3. Select the Installation menu and press Enter .
4. Select the Geometry Correction setting and press Enter .
5. Select the Quick Corner setting and press Enter .
Note: You may see a confirmation screen. Select Yes and press Enter again.