Epson Powerlite 765c Multimedia Projector Users Guide

Managing Projectors141
6. Highlight the file name (NSGroup.ini) and select Save to.
7. Choose a location on the second computer and click 
Save. 
To connect to the projector from the new computer, follow the steps 
beginning on page 137.
Importing a Projector Group
You can also import group information as a file to another computer 
on the wireless network. 
1. Start NS Connection. (See page 74.)
2. Then click the 
Extension button on the EMP NS Connection 
screen. You see this screen:
3. Select 
Use IP...

142Managing Projectors4. Click the 
Advanced button. You see this screen.
5. Click 
Import.
6. On the next screen, select the file you want to import and 
click
Open.
The names of all of the groups in the file are added to the 
Connection Group list on the Advanced screen.
To connect to the projector from the new computer, follow the steps 
beginning on page 137. 

143
1
Maintaining the Projector
Your projector needs little maintenance. All you have to do is keep 
the lens clean and periodically clean the air filters at the side and 
bottom of the projector. A clogged air filter can block ventilation 
needed to cool the projector.
The only parts you should replace are the lamp and air filter. If any 
other part needs replacing, contact your dealer or a qualified servicer.
This chapter covers the following:
■Cleaning the lens
■Cleaning the projector case
■Cleaning...

144Maintaining the Projector
Cleaning the Lens
Clean the lens whenever you notice dirt or dust on the surface.
Use a canister of compressed air to remove dust.
To remove dirt or smears on the lens, use lens-cleaning tissue. If 
necessary, moisten a soft cloth with lens cleaner and gently wipe the 
lens.
Cleaning the Projector Case
Before you clean the case, turn off the projector and unplug the power 
cord.
■To remove dirt or dust, wipe the case with a soft, dry, lint-free 
cloth.
■To remove stubborn...

Maintaining the Projector145
Cleaning the Air Filters and Vents
Clean the air filters and air intake vents after every 100 hours of use. If 
they are not cleaned periodically, they can become clogged with dust, 
preventing proper ventilation. This can cause overheating and damage 
the projector. 
Follow these steps:
1. Turn off the projector. Wait for the 
Power light to stop flashing, 
then unplug the power cord.
2. Turn the projector upside down.
3. To clean the intake vents, use a small vacuum cleaner...

146Maintaining the Projector
Replacing the Lamp and Air Filter
The life span of the projection lamp is about 2000 hours if 
Brightness Control in the Setting menu is set to High (default), and 
3000 hours if 
Brightness Control is set to Low. 
It is time to replace the lamp when: 
■The projected image gets darker or starts to deteriorate.
■The message Replace the lamp appears on the screen when the 
lamp comes on and the lamp warning light   flashes orange. To 
maintain projector brightness and image...

Maintaining the Projector147
4. Turn the projector over. Press in on the tabs and lift up the lamp 
cover.
5. Loosen the two screws holding the lamp in place (you don’t need 
to remove them).
6. Hold the lamp as shown and pull it straight out.
 
7. Gently insert the new lamp. (If it doesn’t fit easily, make sure it is 
facing the right way.) 
Loosen, but don’t 
remove these screws
caution
The lamp in this product 
contains mercury. Dispose of 
it according to local, state, or 
federal laws. 

148Maintaining the Projector8. Once the lamp is fully inserted, tighten its screws. 
9. Slide the air filter out and remove it.
10. Slide in the new air filter until it clicks in place.
11. Insert the two cover tabs, then press down on the cover until it 
snaps into place.
12. Reset the lamp timer as described in the next section.  

Maintaining the Projector149
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the 
projector’s menus. 
1. Press the 
Menu button on the remote control or on the 
projector’s control panel. You see the main menu.
2. Use the  pointer button on the remote control (or the arrow 
buttons on the projector) to highlight 
Reset, then press Enter. 
You see this screen: 
3. Select 
Lamp Hours Reset and press Enter. You see this prompt:
4. Select
 Yes and press Enter.
5....

150Maintaining the Projector
Transporting the Projector
The projector contains many glass and precision parts. Follow these 
guidelines to prevent damage:
■When shipping the projector for repairs, use the original 
packaging material if possible. If you do not have the original 
packaging, use equivalent materials, placing plenty of cushioning 
around the projector.
■When transporting the projector a long distance, first place it in a 
hard-shell shipping case, then pack it in a firm box with 
cushioning...