Epson Projector Ex21 User Manual

Fine-Tuning the Projector51 Sleep Mode
: Enable if you want the projector to turn off 
automatically if it is idle and no signal is received for 1 to 30 
minutes (you can adjust the amount of time using the next 
setting).
Sleep Mode Timer: When Sleep Mode is on, you can set the 
period of time before the projector turns off automatically, from 
1to 30 minutes.
Lens Cover Timer: Enabled by default to turn the projector’s 
power off automatically when the 
A/V Mute slide is closed for 
more than 30...

52Fine-Tuning the Projector
■Disable the projector’s buttons; this is useful, for example, in a 
classroom when you want to ensure that no one touches the 
projector’s buttons while you’re using the remote control. See 
page 55.
■Secure the projector to prevent theft using a cable locking system. 
See page 56.
Enabling Password Protection
The default setting for the password is 0000. Follow these steps to 
create a new password:
1. Press the 
Freeze button on the remote control for five to seven...

Fine-Tuning the Projector53
5. Use the numeric keypad to enter a four digit password.
6. When you see a confirmation message, reenter the password.
7. Press the 
Menu button, then press Enter to exit the screen.
8. Turn off and unplug the projector.
Starting the Projector With a Password
When the password function is enabled, you see this screen when you 
plug in and turn on the projector:
Use the numeric keypad to enter a four digit password.
The password screen closes and projection begins.
If...

54Fine-Tuning the Projector
Creating Your Own Startup Screen
You can transfer any image from your computer or video source to the 
projector and then use it as your startup screen. You can also use it as 
the screen displayed when the projector is not receiving a signal or 
when you press the 
A/V Mute button. The image can be a company 
logo, slogan, photograph, or any other image you want to use. 
Capturing the Image
Start by displaying the image you want to use from either a computer 
or video source,...

Fine-Tuning the Projector55
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 saved.
8. When you see the message 
Completed, press Menu to exit. 
Choosing When to Display the Image
After your image is saved, you can set it to display as the startup 
screen, the screen you see when there’s no signal, or the screen you see 
when you press...

56Fine-Tuning the Projector3. Select 
Full Lock (to lock all projector buttons) or Partial Lock (to 
lock all buttons except the Ppower button) and press 
Enter.
4. Select 
Yes and press Enter to confirm the setting.
5. Press the 
Menu button to exit. 
To disable the Control Panel Lock function, select 
Off in the Control 
Panel Lock menu. Or press and hold the 
Enter button on the 
projector’s control panel for seven seconds. A message is displayed and 
the lock is released.
Using Security Locking
The...

57
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 air...

58Maintaining 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 Projector59
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...

60Maintaining 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 63 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,...