Epson Powerlite 755c 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 connect mode and Use Group List. 
Select these 
two boxes 
						

							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 the air filters and vents
■Replacing the lamp and air filter
■Transporting the projector
warning
Before you clean any part of 
the projector, turn it off and 
unplug the power cord. 
Never open any cover on the 
projector, except the lamp 
cover. Dangerous electrical 
voltages in the projector can 
injure you severely. Do not 
try to service this product 
yourself, except as specifically 
explained in this User’s 
Guide. Refer all other 
servicing to qualified service 
personnel. 
						

							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 dirt or stains, moisten a soft cloth with water 
and a neutral detergent. Then wipe the case.
Remove the cap 
before cleaning
caution
Do not use wax, alcohol, 
benzene, thinner, or other 
chemical detergents. These 
can damage the case. 
						

							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 designed for 
computers and other office equipment. If you don’t have one, 
gently clean the vents with a soft brush (such as an artist’s 
paintbrush).
4. If the dirt is difficult to remove or the filter is broken, replace the 
filter as described on page 148. Contact your dealer or call Epson 
at 800-GO-EPSON (800-873-7766) to obtain a new filter. 
note
To order replacement air 
filters, request part number 
V13H134A08. See page 13 
for ordering information. 
						

							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 quality, replace the lamp 
as soon as possible. 
■The lamp warning light   flashes red (the lamp is burnt out).
Contact your dealer or call Epson at 800-GO-EPSON 
(800-873-7766). Request part number V13H010L32. 
Follow these steps to replace the lamp and air filter:
1. Turn off the projector.
2. When the 
Power light stops flashing, unplug the power cord.
3. Let the projector cool for at least an hour (if it has been on). The 
lamp is extremely hot immediately after use. 
note
When you get a replacement 
lamp for your projector, you 
should replace the filters.
To check how long the lamp 
has been in use, see 
page 155.
warning
Let the lamp cool fully 
before replacing it. 
In the unlikely event that 
the lamp has broken, small 
glass fragments may be 
present and should be 
removed carefully to avoid 
injury. 
						

							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
note
The lamp component 
contains mercury. Please 
consult your state and local 
regulations regarding proper 
disposal or recycling. Do not 
place in the trash. 
						

							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. When you’re finished, press 
Esc or Menu to exit.  
						

							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 around the case. (An optional case is available from 
Epson; see page 13.)note
Epson shall not be liable for 
any damages incurred 
during transportation.