Epson Powerlite 821p Multimedia Projector Users Guide

Fine-tuning the Projector61
Viewing Lamp Usage and Other 
Information
Use the Info menu to view information about the display settings of 
your computer and the number of hours the lamp has been used.
1. Press the 
Menu button and select the Info menu. You see one of 
the following menus:
■Lamp Hours
Displays the number of hours the lamp has been used. The 
life span of the lamp ranges from about 2000 hours in 
High 
brightness mode to about 3000 hours in 
Low brightness 
mode. If the number shown is...

62Fine-tuning the Projector
■Refresh Rate (computer, RGB video, and component video)
Displays the refresh rate.
■Sync Info (computer, RGB video, and component video)
Provides information that may be needed by the service 
technician.
2. When you’re finished, press 
Esc or Menu.
Using the Projector’s Security Features
To prevent unauthorized use of the projector, you can do the 
following:
■Create an identifying user logo that is displayed at startup and/or 
when the 
A/V Mute button is pressed
■Assign a...

Fine-tuning the Projector63
If you assign the projector a password, a screen appears requesting the 
password whenever the projector is turned on. If you enter the 
password incorrectly three times in succession, the projector’s 
operation is locked and you’ll need to disconnect the power cord, then 
reconnect it to redisplay the password screen. If you enter the 
incorrect password 30 times in succession, the projector is locked and 
you’ll need to contact Epson to unlock it. See “Where To Get Help” 
on...

64Fine-tuning the Projector3. Use the  pointer button (or the down arrow button) and press 
Enter to select User’s Logo.
4. When you see a message asking if you want to use the present 
image as a user’s logo, select 
Yes and press Enter. A selection box 
displays over the image.
5. Use the  pointer button on the remote control or the arrow 
buttons on the projector to select the area of the image you want 
to use. Once you have selected the area, press 
Enter.
6. When you see the message 
Select this...

Fine-tuning the Projector65
Setting a Password 
1. Press the Freeze button on the remote control for about 5 seconds 
until you see the Password Protect menu:
2. Select 
Password and press Enter. You see the message Change 
the password?
 
3. Select 
Yes and press Enter.
4. Hold down the 
Num key on the remote control and use the 
numeric keypad to enter a 4-digit password. 
The password will be displayed as 
****. After you enter the last 
digit, a confirmation screen appears. Enter the password again....

66Fine-tuning the Projector4. If you want to disable the password temporarily, select 
Timer and 
press 
Enter. Then hold down the Num button while you use the 
numeric keypad to enter the number of hours (from 0 to 9999) 
that you want the password feature disabled. If you want the 
projector to request the password every time it is turned on, set 
the timer to 
0H. Press Enter when you’re done.
The countdown for the elapsed time begins as soon as you close 
the Password Protect menu. (You can check the...

Fine-tuning the Projector67
Press down the Num button on the remote control as you use the 
numeric keypad buttons to enter the password. Once you have 
entered the password correctly, the password screen closes, and 
projection begins.
If the password is not correct, you see the message 
Wrong password. 
Please try again.
 If you enter an incorrect password three times in 
succession, you see the message 
The projector’s operation will be 
locked. Request code xxxxx
 and the projector switches to...

68Fine-tuning the Projector
Restoring the Default Settings
The Reset menu lets you return most projector menu settings to their 
default values. It also lets you reset the lamp hours to their inital 
default value; see page 75 for instructions on resetting the lamp timer.
To reset most projector menu settings, select 
Reset All and press the 
Enter button to display the confirmation screen. Select Yes to reset all 
the default settings or 
No to cancel.
note
The input signal, Video 
Signal, User’s Logo,...

69
5
Maintaining and 
Transporting the Projector
Your projector needs little maintenance. All you need to do on a 
regular basis is keep the lens clean. Any dirt or smears on the lens may 
show up on your projected image. 
You also need to periodically clean the air filter and the air intake and 
exhaust vents. A clogged air filter or air vent can block ventilation 
needed to cool the projector and cause overheating. 
The only parts you should replace are the lamp and air filter. If any 
other part needs...

70Maintaining and Transporting 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 paper. If 
necessary, moisten a soft cloth with lens cleaner and gently wipe 
the lens surface.
Cleaning the Projector Case 
Before you clean the case, first turn off the projector and unplug the 
power cord. 
■To remove dirt or dust, wipe the case with a soft, dry,...