Epson Powerlite 83c Multimedia Projector Users Guide

Fine-tuning the Projector61
■Lamp Hours
Displays the number of hours the lamp has been used. The 
life span of the lamp ranges from about 3000 hours in 
High 
brightness mode to about 4000 hours in 
Low brightness 
mode. If the number shown is close to 3000 or the 
information is displayed in red, make sure you have a spare 
lamp handy.
■Source
Displays the input source currently being projected.
■Input Signal (computer, RGB video, and component video)
Displays the input signal setting.
■Resolution...

62Fine-tuning the Projector
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 password to prevent the projector from being turned on, 
prevent your startup screen from being changed, and lock 
network settings.
■Disable the projector’s buttons; this is useful, for example, if 
you’re projecting in a classroom and you want to...

Fine-tuning the Projector63
Creating Your Own Screen Logo
You can transfer any image on your computer to the projector, and 
then use it as the startup screen and/or the screen that is displayed 
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. The 
projector considers this image the “User’s Logo.” 
Follow these steps to capture the image and transfer it to the projector:
1. Display the image you want to use on the projector....

64Fine-tuning the Projector7. When you see this screen, select a zoom rate (display size), and 
then press 
Enter. 
8. When you see the message 
Save image as user’s logo?, select 
Yes and press Enter. Saving the logo takes a few moments. Do 
not use the projector or other sources (computer, video, etc.) 
while the logo is being saved. When you see the message 
Completed, press Esc.
9. To display the logo as the background screen when you press the 
A/V Mute button or when no image signal is available,...

Fine-tuning the Projector65
3. When you see the message Change the password?, select Yes 
and press 
Enter.
4. Enter a 4-digit number using the numeric buttons on the remote 
control, as shown. 
The password will be displayed as 
****. After you enter the last 
digit, a confirmation screen appears. Enter the password again. 
You see the message 
Password accepted.
5. After you finish setting the password, press the 
Esc button to 
return to the Password Protect menu.
Make a note of the password and keep...

66Fine-tuning the Projector
Starting the Projector with a Password
When the password function is enabled, you see this screen when you 
turn on the projector:
Use the numeric buttons on the remote control 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...

Fine-tuning the Projector67
Disabling the Projector’s Buttons
You can use the Operation Lock function to disable all the projector’s 
buttons, or all the buttons except for the P
Power button. 
1. Press the 
Menu button.
2. Select the 
Settings menu and press Enter.
3. Use the up and down arrow buttons to select 
Operation Lock 
and press the 
Enter button.
4. Select 
Full Lock to disable all the buttons, or Operation Lock to 
disable all except the
 PPower button. Then press Enter.
5. Select 
Yes and...

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 initial 
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 Computer Input (1 and 
2), User’s Logo,...

5
69
5
Maintenance and 
Transportation
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...

70Maintenance and Transportation
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, lint-free 
cloth....