Ricoh PJ WU6181N 6200-Lumen WUXGA LCD Projector (No Lens) - Manual (Page 88)

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4. Multi-Screen Projection
Black Level Adjustment
This adjusts the black level of the overlapping area and the non-overlapping area of the multi-screen (EDGE BLENDING).
Adjust the brightness level if you feel the difference is too large.
NOTE:
This function is enabled only when [MODE] is turned on.
Adjustable area varies depending on what combination of [TOP], [BOTTOM], [LEFT] and [RIGHT] are turned on.
Example: Adjusting the Black Level when placing two projectors side by side
Width of overlap
Adjust [CENTER] Adjust [CENTER]
Projector A’s
image
Projector B’s
image
Adjust [CENTER-RIGHT] Adjust [CENTER-LEFT]
1. Turn on [MODE]
2. Select [BLACK LEVEL] and press the ENTER button.
The screen will switch to the black level adjustment screen.
3. Use the ▼ or ▲ button to select an item and use the ◀ or ▶ to adjust the black level.
Do this for the other projector if necessary.