Ricoh PJ WU6181N 6200-Lumen WUXGA LCD Projector (No Lens) - Manual (Page 48)

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3. Convenient Features
❺
Correcting Horizontal and Vertical Keystone Distortion
[CORNERSTONE]
Use the [CORNERSTONE] feature to correct keystone (trapezoidal) distortion to make the top or bottom and the left or right side
of the screen longer or shorter so that the projected image is rectangular.
1. Press and hold the Geometric. button for a minimum of 2 seconds to reset current adjustments.
Current adjustments for [GEOMETRIC CORRECTION] will be cleared.
2. Project an image so that the screen is smaller than the area of the raster.
Projected image
The drawing shows the upper right corner.
3. Pick up any one of the corners and align the corner of the image with a corner of the screen.
4. Press the Geometric. button.
Display the [GEOMETRIC CORRECTION] screen of the on-screen menu.