Epson BrightLink 1485Fi 5000-Lumen Pixel-Shift Full HD Ultra-Short Throw 3LCD Interactive Laser Projector - Manual (Page 166)

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4. Hold down the ID button on the remote control while you press the numeric button that matches the
projector's ID. Then release the buttons.
The remote control's ID is set.
Note: If the batteries are left out of the remote control for an extended period, the remote control ID
returns to its default setting.
Parent topic: Projector Identification System for Multiple Projector Control
Adjusting Color Uniformity
If the color tone is uneven on each screen, adjust the color tone balance in the Multi-Projection menu of
each projector. (The color tone may not be uniform even after performing color uniformity.)
Note: Set the Color Mode setting in each projector's Image menu to Multi-Projection before you start
projecting (BrightLink 1485Fi).