Epson Projector Emp 7850 User Manual

40 EMP-7850 User’s Guide
Turning the Projector OffFollow the procedure below to turn the projector off.
PROCEDURE
Turn the power off for the signal sources that are 
connected to the projector.
Check that the power for all connected components has been 
turned off.Press the [Power] button on either the remote control 
or the projectors control panel.
The following confirmation message will appear.
If you do not want to turn the power off, press a button other 
than any of the following:
 At the remote...

41
Turning the Projector OffEMP-7850 User’s Guide
If not using the projector for a long period, unplug the 
power cable from the electrical outlet.Set the [R/C] switch to OFF.
Attach the lens cover.
Attach the lens cover to the lens when not using the projector, 
in order to stop the lens from getting dusty or dirty.
4
CAUTION
Do not disconnect the power cable from the electrical outlet while the 
 indicator is flashing orange, otherwise operating problems may 
result.5
TIP
If you leave the [R/C] switch...

42 EMP-7850 User’s Guide
Adjusting the Screen ImageYou can correct and adjust the screen images in order to obtain the best 
possible pictures.Adjusting the Image Size (Zoom Function)
The size of the projected images is basically determined by the distance 
from the projector to the screen.   p.15
The following procedures explain how to adjust the screen images once the 
projector itself has been set up.PROCEDURETurn the zoom ring on the projector to adjust the image.
If a standard lens is fitted, the...

43
Adjusting the Screen ImageEMP-7850 User’s Guide
Adjusting the Image Angle
If the projector is set up so that it is at a horizontal or vertical angle to the 
screen, adjust as follows.
If the images are being projected onto a screen that is higher than the 
position of the projector, extend the front adjustable foot to tilt the 
projector.  p.44
If the images are being projected onto a screen that is lower than the 
position of the projector, lift up the back of the projector to tilt it.
When the...

44
Adjusting the Screen ImageEMP-7850 User’s Guide
The front adjustable foot and the rear adjustable feet can be extended and 
retracted to adjust the tilt of the projector to a maximum of 12º upwards 
and 4º downwards.PROCEDUREWhile pulling the foot adjust lever at the front of the 
projector, lift up the front of the projector to extend the 
front adjustable foot.
Extend the front adjustable foot until the desired angle is obtained, 
and then release the foot adjust lever.
To retract the front...

45
Adjusting the Screen ImageEMP-7850 User’s Guide
Manually Correcting Keystone Distortion
This projector is equipped with an automatic keystone correction function 
that detects the vertical angle of the projector during projection and 
automatically corrects vertical keystone distortion. If you would like to 
make further fine adjustments after automatic keystone correction has been 
carried out, or when the projector is tilted horizontally, you can carry out 
keystone correction manually.This...

46
Adjusting the Screen ImageEMP-7850 User’s Guide
When the projector has been tilted vertically, automatic keystone 
correction is carried out so that images with no distortion are projected.
Automatic keystone correction is carried out approximately one second 
after the projector is set up and projection starts. A vertical keystone 
correction gauge appears on the screen while automatic adjustment is in 
progress.
TIP
 The Auto Keystone, H/V-Keystone and Quick Corner 
functions cannot both be used...

47
Adjusting the Screen ImageEMP-7850 User’s Guide
Vertical correction and horizontal correction can be carried out using either 
the projectors control panel or the configuration menus. This procedure 
explains how to use the projectors control panel to correct keystone 
distortion.
For adjustment using the configuration menus:   p.83 Setting - 
Keystone - H/V-Keystone
If you use the horizontal correction function when height correction 
adjustment has already been carried out, the height correction...

48
Adjusting the Screen ImageEMP-7850 User’s Guide
When Automatic keystone correction or horizontal correction is carried 
out, the height of the projected images will become shorter. Use the height 
correction function to adjust the height of the projection area.
The height correction function is accessible from the configuration menu.
This cannot be set when vertical correction is carried out.PROCEDURE
Press the [Menu] button on either the remote control 
or the projectors control panel. Then select...

49
Adjusting the Screen ImageEMP-7850 User’s Guide
Quick Corner correction can be carried out using either the projectors 
control panel or the configuration menus. This procedure explains how to 
use the projectors control panel to correct keystone distortion.
If using the configuration menu: Setting - Keystone - Quick Corner 
 p.83
PROCEDURE
Press the [ ], [ ], [ ] or [ ] button on the 
projectors control panel.
The Quick Corner correction screen will be displayed.
Correcting Keystone Distortion so...