Epson Powerlite 73c Multimedia Projector Users Guide

Fine-tuning the Projector45
Customizing Projector Features
You can use the Setting menu to disable the projector’s sleep mode, 
adjust the image shape, and customize several other features.
1. Press the 
Menu button. 
2. Use the directional buttons to highlight 
Setting. You see the 
features and their settings on the right side:
3. Press 
Enter to select the Setting menu. 
4. Use the directional buttons and 
Enter button to set the following 
options:
■Keystone
Adjusts a distorted image from a trapezoid...

46Fine-tuning the Projector
■Prompt
Turns off the identifying text that appears briefly when you 
switch from computer input to a video source.
■Color Mode Prompt
Turns off the identifying text that appears briefly when you 
switch color modes.
■A/V Mute
Selects the screen color or image to display when you press 
the 
A/V Mute button. The logo setting displays an image that 
you have transferred to the projector. See page 43 for 
instructions on transferring an image to use for the A/V Mute 
display....

Fine-tuning the Projector47
3. Press Enter to select the Advanced menu. 
4. Use the directional buttons and 
Enter button to set the following 
options:
■Language
Select from nine languages to be used for the projector 
menus.
■Brightness Control
Select a Low lamp brightness setting when you need to 
reduce fan noise for your presentation. When you select Low, 
the projector starts up using High brightness for two minutes, 
then switches to Low.
■Startup Screen
Turn on to display the image or logo you...

48Fine-tuning the Projector
Viewing Lamp Usage and Other 
Information
Use the About 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. You see the main menu.
2. Use the 
Enter button to select About.
You see the lamp usage hours and computer display settings on 
the right:
The life span of the lamp is about 1500 hours. If the number 
shown is close to 1500, make sure you have a spare lamp handy.
3. When you’re...

Fine-tuning the Projector49
Restoring the Default Settings
The Reset All option lets you return all the projector settings to their 
default values.
Select 
Reset All and press the Enter button on the remote control to 
display the confirmation screen. Select 
Yes to reset all the default 
settings or 
No to cancel.
Execute
Video
Audio
Setting
Users Logo
Advanced
About
Reset All
[    ]: Execute[Menu]: Exit[    ]: Selectnote
The Input Signal, Video 
Signal, User’s Logo, Lamp, 
and Language settings do not...

50Fine-tuning the Projector 

Maintaining and Transporting the Projector51
1
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 on the bottom of the 
projector. A clogged air filter can block ventilation needed to cool the 
projector and cause overheating. 
The only parts you should replace are the lamp and air filter....

52Maintaining 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,...

Maintaining and Transporting the Projector53
Cleaning and Replacing the Air Filter 
Clean the air filter on the bottom of the projector after every 100 
hours of use. If it is not cleaned periodically, it can become clogged 
with dust, preventing proper ventilation. This can cause overheating 
and damage the projector. To clean the air filter, follow these steps:
1. Turn off the projector, allow it to cool down, and unplug the 
power cord.
2. Turn the projector upside-down, as shown below.
3. To clean...

54Maintaining and Transporting the Projector 4. If you need to replace the filter, lift the tab on the filter cover and 
pull it upward to remove it.
5. Remove the filter.
6. Install the new filter as shown below.
7. Replace the filter cover by inserting the tabs and then pressing 
down the other end until it clicks into place.