WARNING: Never look into the projector lens when the lamp is turned on; the bright light can damage your eyes.
Never let children look into the lens when it is on. Never open any cover on the projector, except the lamp and
filter covers. Dangerous electrical voltages inside the projector can severely injure you. Except as specifically
explained in this User’s Guide, do not attempt to service this product yourself. Refer all servicing to qualified service
personnel.
WARNING: The projector and its accessories come packaged in plastic bags. Keep plastic bags away from small
children to avoid any risk of suffocation.
Caution: When you replace the lamp, never touch the new lamp with your bare hands; the invisible residue left by
the oil on your hands may shorten the lamp life. Use a cloth or glove to handle the new lamp.
Copyright Notice
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior
written permission of SEIKO EPSON CORPORATION. The information contained herein is designed only for
use with this EPSON product. EPSON is not responsible for any use of this information as applied to other
products.
Neither SEIKO EPSON CORPORATION nor its affiliates shall be liable to the purchaser of this product or third
parties for damages, losses, costs, or expenses incurred by purchaser or third parties as a result of: accident, misuse,
or abuse of this product or unauthorized modifications, repairs, or alterations to this product, or (excluding the
U.S.) failure to strictly comply with SEIKO EPSON CORPORATION’s operating and maintenance instructions.
SEIKO EPSON CORPORATION shall not be liable for any damages or problems arising from the use of any
options or any consumable products other than those designated as Original EPSON Products or EPSON
Approved Products by SEIKO EPSON CORPORATION.
EPSON is a registered trademark, and EasyManagement, EasyMP, Quick Corner, and Wall Shot are trademarks
of SEIKO EPSON CORPORATION.
EPSON Connection, EPSON Store, and Extra Care are service marks; SizeWise is a trademark; and PrivateLine,
Presenters Club, and PowerLite are registered trademarks of Epson America, Inc.
Pixelworks, DNX, and the DNX logo are trademarks of Pixelworks, Inc.
General Notice: Other product names used herein are for identification purposes only and may be trademarks of
their respective owners. EPSON disclaims any and all rights in those marks.
PowerLite® 7850p is an easy-to-use, lightweight
projector that offers up to 3500 lumens of brightness and a 700:1
contrast ratio for incredibly vivid images and clear text.
Versatility
You can connect it to a wide range of computers and video sources, or
you can project over an 802.11b wireless network or a wired LAN
network. You can even store your presentation on a memory card for a
computer-free presentation.
Ease of use
The projector’s keystone correction feature automatically corrects
image distortion, and EPSON’s unique Wall Shot
™
function lets you
project against blackboards and colored walls without loss of image
color, regardless of ambient lighting. If space is limited, you can
project against a surface less than two and one-half feet away.
Complete control
Use the remote control to take charge of your presentation. Freeze the
action, zoom in on part of the picture, or display a picture-in-picture
video. Use the remote as a pointer, or to draw on the screen. You can
even use it in place of your computer’s mouse to control your
computer and change slides in MicroSoft
EasyManagement
™
®
PowerPoint.®
With the projector’s EasyManagement system, you can use a
Windows
®
PC to remotely monitor and control the projector over a
network.
Security
To prevent unauthorized use, you can assign the projector a password,
thus preventing unauthorized persons from using it.
Welcome9
Using Your Documentation
This book contains all the information you need to set up and use
your projector. Please follow these guidelines as you read through it:
■Warnings must be followed carefully to avoid bodily injury.
■Cautions must be observed to avoid damage to your equipment.
■Notes contain important information about your projector.
■Tips contain additional projection hints.
Getting More Information
Need tips on giving presentations? Quick steps for setting up your
projector? Here’s where you can look for help:
■presentersonline.com
Includes a library of articles covering presentation tips, tricks, and
technology. The site provides templates, clip art and sound clips,
as well as Presenters Services to use on the road. Even more
resources and services are available if you register to join the
Presenters Club
®
—and it’s free.
need help?
If you still need help after
checking this User’s Guide
and the sources listed to the
right, you can use the
EPSON PrivateLine
Support service to get help
fast. Call (800) 637-7661
and enter the PIN on the
card in your Start Here kit.
Or take advantage of
EPSON’s automated
support services 24 hours a
day. See page 191 for more
information.
10Welcome
■Quick Setup sheet
Gives you the instructions you need to get your projector up and
running if you are connecting to a laptop, PowerBook,
®
or iBook®
computer.
■Start Here kit
Includes this User’s Guide, your Quick Setup sheet, warranty
brochures, and EPSON PrivateLine
®
Support card. Keep the
folder with your projector at all times.
■Built-in help system
Provides assistance for common problems. Available from the
Help button on the projector or the remote control. See page 176
for details.
■support.epson.com
Download FAQs and e-mail your questions to EPSON support.
Registration and Warranty
Your projector comes with a basic carry-in warranty as well as an
international warranty that let you project with confidence anywhere
in the world. For details, see page 212 and the warranty brochure
included in your Start Here kit.
In addition, for customers who register their projector, EPSON offers
SM
free Extra Care
failure, you won’t have to wait for your unit to be repaired. Instead,
EPSON will ship you a replacement unit anywhere in the United
States or Canada, usually via overnight delivery. See the brochure in
your Start Here kit for details.
To register, simply fill out the registration card included in your Start Here kit and mail it to EPSON. Or you can register online at
http://epsonwebreg.info2.net/. Registering also lets you receive special
updates on new accessories, products, and service.
Road Service. In the unlikely event of an equipment
Welcome11
note
You won’t need all these
components; your
configuration will determine
which ones you need.
Unpacking the Projector
After unpacking the projector, make sure you have all the parts shown
below:
ProjectorRemote control and
batteries
Power cableVGA computer cableRCA-style audio cable
12Welcome
RCA-style video cableStereo mini-jack audio cableUSB cable
802.11b wireless card
Projector software
CD-ROM
Save all packaging in case you need to ship the projector. Always use
the original packaging (or the equivalent) when you need to send the
projector to another location. If you are moving the projector by
hand, use a carrying case (either an EPSON case or something similar,
such as a laptop case). See page 14 for ordering information, and
page 174 for transportation instructions.
Additional Components
Depending on how you plan to use the projector, you may need
additional components:
■To receive an S-video signal, you’ll need an S-video cable. One
may be provided with your video equipment, or you can purchase
one from EPSON; see page 14.
■To receive a component video signal from a VCR or other video
device, you’ll need a component video cable.
■Some older PowerBooks
need the Macintosh desktop adapter set shown on page 55
(available from EPSON; see page 14.) Older iMac
need a special adapter to provide a VGA output port; see your
computer dealer.
®
and Macintosh® desktop models may
®
systems may
Welcome13
Optional Accessories
To enhance your use of the projector, EPSON provides the following
optional accessories:
ProductPart number
Replacement lamp and air filtersV13H010L22
Air filter replacement setV13H134A01
ATA molded hardshell case
ATA shipping case
Ceiling mount
Suspension adapter
False ceiling plate
Macintosh adapter set (includes monitor adapter
and desktop adapter)
Remote control cable set V12H005C28
DVI to DVI digital video cable, 10 ft.
DVI to DFP digital video cable, 10 ft.
Component video cable, 10 ft.
S-video cable
Distribution amplifierELPDA01
High resolution document imager
High resolution document camera
Motion presentation camera
®
security lock ELPSL01
ELPKS48
ELPKS46
ELPMB40
ELPMBAPL
ELPMBFCP
V12H004M03
V12H004L05
ELPSC06
ELPSC07
ELPSC08
ELPAP01
V12H005C20
V12H005C21
ELPKC19
ELPSV01
ELPDC02
V12H064020
ELPDC03
14Welcome
You can purchase these accessories from your dealer, by calling
EPSON at (800) 873-7766, or by visiting the EPSON Store
SM
www.epsonstore.com (U.S. sales only). In Canada, please call
(800) 463-7766 for dealer referral.
at
Displaying and Adjusting
the Image
Whether you’re presenting from a computer or video equipment,
you need to follow some basic steps to display your image on the
screen.
Follow the guidelines in this chapter for:
■Positioning the projector
■Turning the projector on and selecting the image source
■Troubleshooting display problems
■Adjusting the image
■Turning off the projector
1
Displaying and Adjusting the Image15
note
You can mount the projector
on the ceiling, or place it
behind a translucent screen
for rear projection. See
Appendix B for details.
Positioning the Projector
If you’re setting up the projector yourself and it isn’t already installed
in the theater or conference room you’re using, you’ll probably want
to place it on a table in front of the screen, as shown. x art below
This lets you stand in the front of the room, face the audience, and
remain close enough to the equipment to be able to control it. Try to
leave as much space as possible between the projector and the screen to
get a good-size image.
Use the figure below to help you determine placement. Image size
increases with distance, but can vary depending on how you position
the zoom ring and whether you’ve adjusted the image with other
settings.
TBD
Also keep these considerations in mind:
■Place the projector on a sturdy, level surface.
■Make sure there is plenty of space for ventilation around and
under the projector. Do not set the projector on top of loose
papers that could block the vents under the projector.
■Make sure the projector is within 10 feet of a grounded electrical
outlet or extension cord.
16Displaying and Adjusting the Image
2.6 to 3.5 ft7 to 9.5 ft27 to 36.5 ftdistance from screen
Ideally, you should place the projector directly in front of the center of
the screen, facing it toward the screen squarely. The base of the lens
should be at about the level of the bottom of the screen.
Projector
Screen
If you place the projector below screen level, you’ll have to tilt it up by
extending its feet. This causes the image to become “keystone” shaped,
but you can correct the distortion by pressing the
Sync buttons on the
projector. See page 26 for detailed information about correcting the
image shape.
note
After positioning the
projector, you may want to
connect a Kensington
MicroSaver
device to the lock port on the
projector’s left side. You can
purchase this from EPSON;
see “Optional Accessories” on
page 14.
®
anti-theft
For instructions on installing the projector in a permanent location,
such as a theater or conference room, see Appendix B.
Displaying and Adjusting the Image17
Projecting the Image
Make sure your projector and other equipment are set up as described
in Chapter 3. Then follow the instructions below to start the projector
and display an image.
Turning on the Projector
note
To shut down the projector,
see page 29. Shutting down
the projector correctly
prevents premature lamp
failure and possible damage
from overheating.
If you turn on any connected computer or video equipment before
starting the projector, this lets the projector automatically detect and
display the image source. If you turn on the projector first, or have
multiple pieces of connected equipment, you may have to select the
image source manually (see page 20).
Follow these steps to turn on the projector:
1. Remove the lens cap.
2. Plug one end of the power cable into the projector, and the other
end into a grounded electrical outlet.
3. Wait until the Ppower light stops flashing and turns orange.
Power light
18Displaying and Adjusting the Image
4. Press the red PPower button on top of the projector—or press
the P
Power button on the remote control.
(If this is your first time using the remote control, make sure the
batteries are installed and the
ON/OFF switch on the side of the
remote is turned on.)
Power button
The Ppower light flashes green as the projector warms up, and an
image begins to appear. When the Ppower light stops flashing
and remains green (in about 40 seconds) the projector is ready
for use.
5. If you’ve connected a Windows-based computer to the projector,
you may see a New Hardware Wizard saying your computer has
found a plug-and-play monitor; if so, click
Cancel.
Turn on
remote
warning
Never look into the lens
when the lamp is on. This
can damage your eyes, and is
especially dangerous for
children.
Displaying and Adjusting the Image 19
note
To focus and adjust the
image, see page 24. If a
projected image fails to
appear, see page 21 for help.
note
You can also preview all
sources on one screen to help
you select the desired source
(see page 36).
Selecting the Image Source
Selecting the image source lets you switch between images input from
different pieces of equipment connected to the projector (such as a
computer or DVD player).
If you don’t see the image you want, select it using the
buttons either on the projector or the remote control.
Source buttons work as follows:
The
■The projector has two Source buttons. Use the Computer/DVI
button to switch between
connected to the
Use the
Video/BNC button to switch between equipment
connected to the
■The remote control has six Source buttons. Use them to switch
Computer and DVI ports.
Video, S-Video, and BNC ports.
EasyMP, and between equipment
between equipment connected to the port identified on each
button, or select EasyMP to project wirelessly or from a memory
card.
Source
Note that the
Computer and BNC ports can be set up to use different
input signals (for example, Analog RGB or RGB Video)—so if you
have equipment connected to one of these ports, it’s important to
make sure the correct signal is selected to match the equipment you’re
using. You can change the input signal settings using the projector’s
menu system; see page 137.
20Displaying and Adjusting the Image
Troubleshooting Display Problems
Follow these guidelines if you’re having trouble displaying an image.
You Can’t Project an Image
If you see a blank screen or a blue screen with the No Signal message,
try the following:
■Make sure the cables are connected correctly, as described in
Chapter 3.
■Make sure the power light is green and not flashing and the lens
cap is off.
■If you’ve connected more than one computer and/or video source,
you may need to press one of the
Source buttons on the
projector’s control panel or the remote control to select the
correct source. (Allow a few seconds for the projector to sync up
after pressing the button.)
■If you’re using a PC laptop, press the function key on your
keyboard that lets you display on an external monitor. It may be
labelled
to hold down the
CRT/LCD or have an icon such as . You may have
Fn key while pressing it. Allow a few seconds for
the projector to sync up after changing the setting.
The Projector and Laptop Don’t Display the
Same Image
If you’re projecting from a laptop, and you can’t see your image on the
projection screen and on your computer at the same time, follow these
guidelines.
No Signal
If you’re using a PC laptop:
■On most systems, there’s a function key that lets you toggle
between the LCD screen and the projector, or display on both at
the same time. It may be labelled
as . You may have to hold down the
it. Allow a few seconds for the projector to sync up after changing
the setting.
CRT/LCD or with an icon such
Fn key while pressing
Displaying and Adjusting the Image 21
■If the function key doesn’t permit you to display simultaneously
on both screens, you should check your monitor settings to make
sure both the LCD screen and the external monitor port are
enabled.
From the Control Panel, open the
Properties dialog box, click the
Advanced. The method for adjusting the settings varies by
brand; you may need to click a
Display utility. In the Display
Settings tab, then click
Monitor tab, then make sure the
external Monitor port is set as your primary display and/or
enabled. See your computer’s documentation or online help for
details.
If you’re using Macintosh OS X:
You may need to set up your system to display on the projector screen
as well as the LCD screen. Follow these steps:
1. From the Apple menu, select
Displays.
2. Make sure the
3. Click the
VGA Display dialog box is selected.
Arrange (or Arrangement) tab.
System Preferences, then select
Select the
VGA Display
dialog box
Make sure
Mirror Displays
is checked
4. Make sure the
22Displaying and Adjusting the Image
Mirror Displays checkbox is selected.
If you’re using OS 8.6 to OS 9.x:
You may need to set up your system to display on the projector screen
as well as the LCD screen. Follow these steps:
1. From the Apple menu, select
Control Panels, then click
Monitors or Monitors and Sound.
2. Click the Arrange icon.
Click here
Drag one monitor
icon on top of
the other
3. Drag one monitor icon on top of the other.
If the Arrange option isn’t available, you may need to select one of the
Simulscan resolution settings:
1. Click the
2. Select a
Monitor icon.
Click here
Simulscan resolution as shown. (Allow a few seconds for
the projector to sync up after making the selection.)
Select a
Simulscan
resolution
Displaying and Adjusting the Image 23
Adjusting the Image
Once you see your image, you need to make certain adjustments:
■To focus or zoom your image, see below.
■If the image is too high or too low, you can reposition it. See
page 25.
■If the image isn’t square, see page 26.
■If a computer image displays incorrectly, see page 28.
If you need to fine-tune the image and/or sound, see Chapter 4.
Focusing and Zooming Your Image
Use the focus ring on the projector to sharpen the image.
Use the zoom ring on the projector to reduce or enlarge the image.
Move the tab toward the
decrease it.
W to increase the size, and toward the T to
If the image still isn’t large enough, you may need to move the
projector farther away from the screen. You can also use the
buttons on the remote control to zoom in on a portion of the image.
See page 39 for instructions.
24Displaying and Adjusting the Image
Focus ringZoom ring
E-Zoom
Adjusting the Height of Your Image
If the image is too low on the screen, you can use the front adjustable
foot to raise it.
1. Stand behind the projector. Press the blue foot release lever up
and lift the front of the projector.
2. Once the image is positioned where you want it, release the lever
to lock the foot in position.
3. If necessary, you can fine-tune the height or level the image by
turning the projector’s rear feet.
Raising the projector causes the image to distort or “keystone,” but
you can manually correct the shape as described in the next section.
Projector rear foot
Displaying and Adjusting the Image 25
Keystone correction
Adjusting the Image Shape
In most cases, you can maintain a square or rectangular image by
placing the projector directly in front of the center of the screen with
the base of the lens level with the bottom of the screen.
Even if the projector is slightly tilted (within a range of 40° up or
down), the projector has an automatic keystone correction function
that detects and corrects vertical keystone distortion.
Corrected imageProjector tilted upProjector tilted down
It takes about one second after projection starts for the image to be
corrected. During this time, a vertical keystone correction gauge
appears on the screen.
If your image is still distorted, you can correct it using either of these
methods:
■If the image has two parallel sides but is wider on one side (top,
bottom, left, or right), you can correct it using the
on the projector’s control panel or the projector’s Keystone menu
(see “Using Keystone Correction” on page 27).
Keystone keys
■If the image has no parallel sides, you can adjust its shape using
Keystone correction
Quick Corner
You cannot use both keystone correction and Quick Corner at the
same time.
Quick Corner correction
26Displaying and Adjusting the Image
™
(see page 37).
Using Keystone Correction
To adjust your image when it is wider on one side, do the following:
■Look at the shapes of the icons on the projector’s four Keystone
buttons. Press the button whose icon is the mirror image of the
shape of your screen image. Continue pressing the button until
you are satisfied with the shape of the image.
Keystone
buttons
■Or press the Menu button on the remote control, select the
Setting menu, and press Enter. From the Setting menu, select
H/V-Keystone in the Keystone menu and press Enter. Select
V-Keystone (for vertical keystone distortion) or H-Keystone (for
horizontal keystone distortion) and press
pointer button on the remote control to adjust the keystone
setting as needed.
Enter. Use the
note
The image will be slightly
shorter after adjusting. If it’s
important to maintain the
correct aspect ratio, use the
menu system to perform
keystone correction, then
adjust the Height setting as
needed. See page 129.
Menu
button
Displaying and Adjusting the Image 27
Correcting Computer Images
note
You must be projecting an
image for this button to have
any effect. The
works only with computer
images.
Auto button
If you’re connected to a computer and the image doesn’t look right,
press the
Auto button on the remote control (or the Auto/Enter
button on the projector’s control panel). This automatically resets the
projector’s tracking, sync, resolution, and position settings.
Auto button
If vertical bands appear in the projected image and the
doesn’t correct the problem, hold down the
Shift button on the
projector’s control panel while pressing either the
Tracking - button.
Auto button
Tracking + or the
If the image appears fuzzy or flickers and the
correct the problem, hold down the
Sync + or Sync - button.
the
28Displaying and Adjusting the Image
Auto button doesn’t
Shift button while pressing either
Shutting Down the Projector
f
p
p
p
y
p
Power OFF?
Yes : :
Press button
No : :
Press any other button
When you’ve finished using the projector, follow the recommended
procedure to shut it down. This extends the life of the lamp and
protects the projector from possible overheating.
1. Turn off any equipment plugged into the projector.
2. To turn off the projector, press the red P
projector or remote control.
Power button on the
Power button
note
When the projector has not
received any input signals
or 30 minutes, it
automatically turns off the
rojector lamp and enters
“sleep mode.” This conserves
electricity, cools the
rojector, and extends the
life of the lamp. If you want
to start projecting again,
ress the Power button. If
ou are done using the
rojector, unplug the power
cord. To turn off sleep mode,
see page 139.
You see a confirmation message. (If you don’t want to turn it off,
press any other button.)
3. Press the
Power button again. The power light flashes orange for
about 40 seconds as the projector cools down. After the projector
has cooled, the orange light stays on and the exhaust fan shuts off.
If you want to turn the projector on again, wait until the orange
light stops flashing. Then press the Power button.
4. If you extended the adjustable front foot, press up on the blue
foot release lever to retract it.
5. Replace the lens cap and unplug the power cord.
6. If you’re using a remote control, set its
ON/OFF switch to OFF.
Displaying and Adjusting the Image 29
Power OFF?
Yes
Press button
No
Press any other button
caution
To avoid damaging the
projector or lamp, never
unplug the power cord when
the power light is green or
flashing orange.
30Displaying and Adjusting the Image
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