Epson 81p Benutzerhandbuch

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Make sure you are within 20 feet of the projector, and within 
range of the projector’s front or back sensor (approximately 30° to 
the left or right and 15° above or below).

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The remote control batteries may not be installed correctly or may 
be low on power. Replace the batteries as described on page 48.

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Dim the room lights and turn off any fluorescent lights. Make 
sure the projector is not in direct sunlight. Strong lighting, 
especially fluorescent lights, may affect the projector’s infrared 
receivers.

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Turn off any nearby equipment that emits infrared energy, such 
as a radiant room heater.

You need the remote control to access many projector features. If you 
have lost it, you can order another from Epson. See page 92 for details 
about ordering.

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Make sure the USB mouse cable is securely connected to both 
your computer’s USB port and the projector’s USB port. For 
details, see page 19.

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Make sure 

RS232C

 is selected as the COM Port setting in the 

Extended menu. See page 60. 

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To use the USB mouse connection on a PC, your system must 
have a “clean” installation of Windows 98, Windows Me, 
Windows XP, or Windows 2000. The connection may not work 
correctly if your system was upgraded from Windows 95.