Epson Europe EB-1420Wi Guide D'installation page 45

e
Loosen the M4 screw (x1) with the hexagon wrench, and then adjust the horizontal roll
with the adjustment dial
c
Repeat steps 5 to 10 as necessary.
After you finish making adjustments, tighten the M4 screw that you loosened.
f
Loosen the M4 screws (x2) with the hexagon wrench, and then adjust the horizontal
rotation with the adjustment dial
After you finish making adjustments, tighten the M4 screws that you loosened.
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Installation Guide