Epson EB-4750W User's Guide Page 112
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You should clean the projector if it becomes dirty or if the quality of
projected images starts to deteriorate.
Caution
When cleaning, unplug the power cable from the electric outlet. Otherwise, it
could cause an electric shock.
Cleaning the Projector's Surface
Clean the projector's surface by wiping it gently with a soft cloth.
If the projector is particularly dirty, moisten the cloth with water containing
a small amount of neutral detergent, and then firmly wring the cloth dry
before using it to wipe the projector's surface.
Attention
Do not use volatile substances such as wax, alcohol, or thinner to clean the
projector's surface. The quality of the case may change or become discolored.
Cleaning the Lens
Use a commercially available cloth for cleaning glasses to gently wipe the
lens.
Warning
Do not use sprays that contain flammable gas to remove dust and lint from the
lens. The projector may catch fire due to the high internal temperature of the
lamp.
Attention
Do not rub the lens with harsh materials or subject the lens to shocks, as it
can easily become damaged.
Cleaning the Air Filter
When the following message is displayed and the filter indicator flashes
green, clean the air filter and the air intake vent.
"Time to clean the air filter. Clean or replace the air filter."
"The projector is overheating. Make sure nothing is blocking the air vent,
and clean or replace the air filter."
"The air filter is clogged. Clean or replace the air filter."
Attention
• If dust collects on the air filter, it can cause the internal temperature of the
projector to rise, and this can lead to problems with operation and shorten
the optical engine's service life. Clean the air filter immediately when the
message is displayed.
• Do not rinse the air filter in water. Do not use detergents or solvents.
• When using a brush for cleaning, use one with long soft bristles, and brush it
lightly. If it is brushed too strongly, dust will be ground into the air filter and
cannot be removed.
Cleaning the air filter
The air filter can be replaced even when the projector is suspended from a
ceiling.
a
After you turn off the projector's power and the confirmation
buzzer beeps twice, disconnect the power cable.
Cleaning
112
- User's Guide 1
- Notations Used in This Guide 2
- Contents 3
- Configuration Menu 4
- Troubleshooting 4
- Introduction 7
- Interface 9
- Part Names and Functions 10
- Control Panel 11
- Remote Control 12
- Preparing the Projector 17
- Installing the Projector 18
- Screen Settings 19
- Displaying a Test Pattern 21
- (Lens Shift) 22
- Adjusting the Image Size 24
- Correcting the Focus 24
- Adjusting the Image Position 24
- Adjusting the Horizontal Tilt 24
- ID Settings 25
- Setting the Time 26
- Connecting Equipment 28
- Connecting Image Sources 30
- Monitor Out D-Sub 32
- Audio Out Audio IN 32
- Connecting a LAN Cable 33
- Attaching the Cable Cover 35
- Basic Usage 37
- Projecting Images 38
- Adjusting the Volume 39
- Adjusting Projected Images 40
- Adjusting the Image 48
- Useful Functions 52
- Projection Functions 53
- Freezing the Image (Freeze) 57
- Saving a User's Logo 58
- Memory Function 60
- Scheduling Function 62
- Security Functions 65
- Restricting Operation 67
- Anti-Theft Lock 68
- Using the Configuration Menu 71
- List of Functions 72
- Image Menu 74
- Signal Menu 75
- Settings Menu 77
- Extended Menu 78
- Network Menu 81
- Info Menu (Display Only) 91
- Reset Menu 92
- Using the Help 94
- Problems Relating to Images 100
- Problem Solving 101
- Other Problems 106
- About Event ID 110
- Maintenance 111
- Cleaning 112
- Replacing Consumables 115
- Warning 116
- Caution 116
- Replacing the Air Filter 118
- Notes on Transportation 120
- Image Maintenance 121
- Color Uniformity 122
- Appendix 125
- Network Functions 126
- Monitoring and Controlling 127
- Problems 128
- Management Using SNMP 129
- ESC/VP21 Commands 130
- About PJLink 132
- About Crestron RoomView 132
- Optional Accessories 137
- Consumables 137
- EB-4855WU/EB-4850WU) 138
- Unit: cm 140
- Unit: cm 140
- Supported Monitor Displays 144
- Specifications 146
- Appearance 150
- Glossary 151
- General Notes 153
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