Epson Powerlite 78 Multimedia Projector Users Guide

Fine-Tuning the Projector71
4. Use the arrow buttons to select the area of the image you want to 
use. Then press 
Enter.
5. When you see the message 
Select this image?, highlight Yes 
and press 
Enter. 
6. Use the arrow buttons to select a zoom factor (display size) and 
press 
Enter.
7. When the message 
Save this image as the User’s Logo? 
appears, select 
Yes and press Enter. Saving the logo may take a 
few moments. Do not use your projector, remote control, or 
video source while the logo is being...

72Fine-Tuning the Projector
Disabling the Projector’s Buttons
When you enable the Control Panel Lock function, you can lock all of 
the projector’s buttons, or all of the buttons except the Ppower 
button. The remote control can still be used to operate the projector.
1. Press the 
Menu button, highlight the Settings menu, and press 
Enter.
2. Select 
Control Panel Lock and press the Enter button.
3. Select 
Full Lock (to lock all projector buttons) or Partial Lock (to 
lock all buttons except the Ppower...

Fine-Tuning the Projector73
■Security cable attachment. You can attach a commercially 
available security cable as shown below to secure the projector to a 
table or ceiling mount.
■Kensington security slot. The security slot (located on the side 
of the projector) is compatible with the MicroSaver security 
systems manufactured by Kensington. You can purchase this lock 
from Epson (see page 12).
Security cable 
attachmentKensington 
security slot 

74Fine-Tuning the Projector 

5
75
5
Maintaining the Projector
Your projector needs little maintenance. All you have to do on a 
regular basis is clean the lens, and check that the air filter and vents are 
clean. A clogged air filter or vent 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...

76Maintaining the Projector
Cleaning the Lens
Clean the lens whenever you notice dirt or dust on the surface.
To remove dirt or smears on the lens, use a commercially available 
cloth for cleaning glasses.
Cleaning the Projector Case
Before cleaning, 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 and firmly wring the cloth dry. Then...

Maintaining the Projector77
You can remove the air filter to clean both sides
If the filter is too dirty or broken, replace the filter as described below. 
Replacing the Air Filter
You need to replace the air filter if:
■You cannot remove the dust from it
■The air filter is damaged or torn
■You repeatedly see a projected message telling you to clean or 
replace it
Contact your dealer or call Epson at 800-GO-EPSON 
(800-463-7766) to obtain a new air filter. Request part number 
V13H134A13.
1. Turn off the...

78Maintaining the Projector
Replacing the Lamp
The life span of the projection lamp is about 3000 hours if 
Brightness Control in the Settings menu is set to High (default), and 
4000 hours if 
Brightness Control is set to Low. See page 81 to check 
the lamp usage.
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 and the 
Lamp light flashes orange. To maintain projector brightness 
and image quality,...

Maintaining the Projector79
3. Loosen the lamp cover screw (you cannot remove it). Then slide 
the lamp cover off.
4. Loosen the two screws holding the lamp in place (you can’t 
remove them).
5. Hold the lamp as shown and pull it straight out.
 
Loosen, but don’t 
remove these screws
note
The lamp(s) in this 
product contain mercury. 
Please consult your state and 
local regulations regarding 
disposal or recycling. Do not 
put in the trash. 

80Maintaining the Projector6. Gently insert the new lamp. (If it doesn’t fit easily, make sure it is 
facing the right way.) Then tighten its screws.
7. Replace the lamp cover, then tighten its screw.
8. Reset the lamp timer as described in the next section. 
Resetting the Lamp Timer
After you replace the lamp, you need to reset the lamp timer using the 
projector’s menu system. 
1. Press the 
Menu button on the remote control or on the 
projector’s control panel. You see the main menu.
note
Tighten the...