Installation Settings; Changing The Direction Of The Image (Projection Mode) - Epson EB-L1075U User Manual

Installing the Projector
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While holding the lens unit firmly, hold the lock lever and turn it
counterclockwise to unlock the lens unit.
Pull the lens unit straight out as it is released.

Installation Settings

Changing the direction of the image (projection mode)

You can change the direction of the image using Projection mode from the
Configuration menu.
Extended - Projection p.146
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When Front is the standard, the image directions for each projection mode
are as follows.
Front (default)
Rear
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Front/Ceiling
Rear/Ceiling