Epson BrightLink Pro 1470Ui User Manual page 115

Note: You can use the keystone buttons to correct the image up to ± 3° horizontally or vertically. If the
projector is mounted on the wall, use the adjustment dials on the wall mount to correct the screen image
before using any other digital correction methods.
Note: Using the keystone correction buttons may affect interactive pen and finger touch calibration.
1. Turn on the projector and display an image.
Note: You can display a pattern to aid in adjusting the projected image using the Settings menu.
2. Press one of these keystone buttons on the control panel to display the Keystone adjustment
screen.
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