Epson PowerLite X49 3600-Lumen XGA 3LCD Projector - Manual (Page 102)

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2. To sharpen the image focus, rotate the projector’s focus ring.
Parent topic: Using Basic Projector Features
Remote Control Operation
The remote control lets you control the projector from almost anywhere in the room. You can point it at
the screen, or the front or back of the projector.
Make sure that you aim the remote control at the projector's receivers within the distance and angles
listed here.
PowerLite E20