Epson Powerlite 7850p Multimedia Projector Users Guide

							Presenting Through a Wireless Network91
3. If you don’t see your projector, check the following:
■Make sure your wireless signal is strong enough to establish a 
connection. If you have a Macintosh, check the AirPort 
icon on the Macintosh menu bar. For Windows, see the 
documentation for your access point or computer network 
card.
■Make sure you’re trying to connect to the right network. In 
Windows, verify that you’ve enabled your computer’s 
connection to the access point or that your wireless card or 
adapter is enabled, and that its SSID matches the projector’s 
ESSID. In Macintosh, check the AirPort status menu (click 
the AirPort icon on your menu bar) to make sure AirPort is 
turned on and the projector’s ESSID or your AirPort network 
is selected.
■Make sure you aren’t projecting one of the EasyMP 
configuration screens. (You should see a message that the 
projector is ready to connect.) If you have to exit a 
configuration screen, restart NS Connection.
■Make sure the ESSID for your projector matches the SSID 
for your wireless card, adapter, or access point. If you have an 
AirPort base station, make sure the projector’s ESSID 
matches the AirPort network name. Remember that the 
ESSID is case-sensitive.
■Check the IP address for both your projector and your 
wireless card, adapter, access point, or AirPort base station. 
The first three segments of the IP address should be identical. 
The last segment of the projector’s IP address should be close, 
but not identical, to the last segment of the IP address for 
your wireless interface, access point, or base station.
■Restart your computer and start NS Connection again.
■If you still don’t see your projector, follow the instructions in 
“Connecting in IP Connect Mode” on page 95 to connect to 
the projector.
note
If none of these suggestions 
work, see the troubleshooting 
information beginning on 
page 186.
note
The AirPort network name 
may be different than the 
AirPort base station name. 
T
check the network name, start
the AirPort Admin utility, 
select your base station, and 
click 
Configure. Then click 
Show All Settings. The 
network name appears on th
e
AirPort tab. 
						

							92Presenting Through a Wireless Network4. Once the name of your projector appears, select it and click 
Connect. If more than one projector is listed, you can select 
additional ones to connect to them at the same time. If the 
selected projector is already being used by another person, you can 
still connect to it; doing so automatically disconnects the other 
user.
5. If you set up the projector to prompt you for a keyword before 
connecting, you see a screen like this one:
Type in the four-digit number displayed on the EasyMP Network 
screen and click 
OK.
6. Once the connection is established, you see your computer’s 
image transmitted to the projector, and a floating control bar:
7. If necessary, drag the control bar out of the way, or minimize it to 
an icon on the taskbar by clicking it as shown above. 
note
If you want your 
presentation encrypted, 
click 
Extension and select 
Use encrypted 
communication
. 
This step enhances security 
but decreases the data 
transmission speed. 
Enter keyword
Click here 
to minimize 
						

							Presenting Through a Wireless Network93
8. From the control bar, you can access these NS Connection 
features: 
9. When done with your presentation, click 
Disconnect on the 
control bar. Provides help for NS Connection.
Lists projectors and specifies which ones 
are in use. 
Lets you access the projector’s menu 
system from an HTML browser 
window. See page 156 for more 
information.
Lets you keep the projected image on 
screen, even if the image on your 
computer changes. 
Turns off the image and sound. 
Lets you zoom in on a part of your 
image. 
Lets you change the brightness, keystone 
angle, contrast, color mode, and other 
basic settings. 
Lets you switch between the 
Video, 
S-Video, and BNC ports. 
Lets you switch between signals from the 
Computer and DVI ports. 
Flashes three lights in sequence when the 
computer and projector connection is 
active. 
						

							94Presenting Through a Wireless Network
Using the Control Bar
Clicking one of the buttons on the control bar may cause a submenu 
to appear above the control bar. For example, clicking the   button 
displays the following submenu:
If you are using more than one projector, you can use the 
Projector 
drop-down menu to select the projector to which you want to make 
any of the following changes:
■Brightness
Increase or decrease brightness
■Keystone
Click + to narrow the top edge of the screen, or - to narrow the 
bottom edge (this option functions like the 
Sync buttons on the 
projector’s control panel)
■Contrast
Increase or decrease image contrast
■Color Mode
Lets you select from five preset modes to adjust the color and 
brightness for specific environments: 
sRGB for computer displays 
(the default when projecting from a computer with analog video), 
Dynamic for presentations in bright rooms, Presentation for 
presentations in dark rooms, 
Theatre for optimizing movie 
images (the default for video display), and 
Living Room for video 
games
When you’re done making changes, click the arrow in the upper right 
corner to close the menu.
Click to 
close 
						

							Presenting Through a Wireless Network95
Connecting in IP Connect Mode
Even if your projector and computer are on a different subnet (Access 
Point mode only) or connecting over different routers, you can 
establish a connection manually using IP Connect Mode. 
1. Start NS Connection on the computer to which you want to 
connect. You see this screen:
2. Click the 
Extension button. You see this screen:
note
Depending on your network, 
your projector and computer 
may connect over different 
routers even if they are in 
the same room. Try this 
method if you are unable to 
connect automatically.
Click here
Select this box 
						

							96Presenting Through a Wireless Network3. Select 
Use IP connect mode and click OK. You see this screen:
4. Click 
IP connection. You see this screen:
5. Enter the projector’s IP address and click 
Search. 
Click here
Enter the IP 
address and click 
Search
note
You can add up to 16 
projectors to the list. If you 
add more, NS Connection 
begins to delete projectors 
from the list, starting with 
the first projector added. 
						

							Presenting Through a Wireless Network97
The IP address appears in the Projector list and a  searching 
icon displays:
If the search fails to find a projector with the specified IP address, 
the searching icon turns into a question mark. If this happens, run 
EasyMP to check the projector’s IP address, then repeat this step.
6. Click the projector you want to connect to, then click the 
Connect button. If more than one projector is listed, you can 
select additional projectors and connect to them at the same time.
7. If you are prompted for a keyword, enter the four-digit number 
displayed on the EasyMP Network screen and click 
OK.
The computer’s image is transmitted to the projector. See page 92 
for details about using the floating control bar.
This icon 
indicates search 
is in progress
This icon appears if 
the search fails to 
find the projector 
note
You can connect to a 
projector while another 
person is using it. Follow the 
steps on page 98. 
						

							98Presenting Through a Wireless Network
Switching Between Users 
To connect to the projector while another person is already using it 
(Access Point mode only), you follow the same basic steps as described 
in the previous section. 
1. Start NS Connection. You see this screen:
2. Select the projector and click 
Connect. 
You see this message:
3. Click 
Yes to connect. 
The other user is automatically disconnected and notified about 
the interruption:
Select projector 
						

							Presenting Through a Wireless Network99
Removing the Wireless 802.11b Card
Follow these steps to remove the card.
1. If you’re running NS Connection, click 
Disconnect on the 
control bar.
2. Check the card indicator light to make sure it isn’t flashing or on. 
Then press the eject button. The button pops out.
3. Press the eject button again. The wireless card partially ejects.
4. Pull the card straight out. Then press the eject button back in to 
prevent it from being damaged.
Click 
Disconnect
caution
Never remove the card while 
the card indicator light is 
green, or when projecting 
wirelessly. You may damage 
the card or lose data. 
Indicator light
Eject button 
						

							100Presenting Through a Wireless Network