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Epson 1781W Users Guide - Page 167

Solutions When the Image or Sound Contains Static When Using Screen Mirroring, Solutions When You Cannot Read the NFC Tag - driver

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• Make sure the mobile device settings are correct. • You may not be able to connect immediately after disconnecting from the projector. Wait a while and try connecting again. • Restart the mobile device. • If you have previously connected to the projector using Screen Mirroring, the device may have saved the previous connection information. Delete the saved information and connect to the projector from the list of available devices. Parent topic: Solving Network Problems Solutions When the Image or Sound Contains Static When Using Screen Mirroring If the projected image or sound contains static when connecting using Screen Mirroring, try the following solutions: • Avoid covering the Wi-Fi antenna of the mobile device. • If you use a Screen Mirroring connection and an internet connection at the same time, the image may freeze or contain noise. Disconnect from the internet to improve the connection speed of the mobile device. • Make sure the projection contents meet the Screen Mirroring requirements. • Depending on the settings of the mobile device, the connection may be lost when the device enters power saving mode. Check the power saving settings on the mobile device. • Make sure your mobile device has the latest version of its wireless driver and firmware installed. Parent topic: Solving Network Problems Solutions When You Cannot Read the NFC Tag If you are unable to read the NFC tag on your mobile device, try the following solutions (PowerLite 1781W/1785W/1795F): • Make sure the mobile device is unlocked and not in standby or sleep mode. • Make sure the mobile device settings are correct. • Make sure the NFC reader is activated on your mobile device. • Adjust the position of the mobile device so that the NFC reader on the device is positioned over the center of the NFC tag on the projector. • Restart the mobile device. Parent topic: Solving Network Problems 167

Section	Page
Contents	3
Introduction to Your Projector	10
Projector Features	10
Product Box Contents	11
Additional Components	13
Additional Projector Software and Manuals	14
Optional Equipment and Replacement Parts	14
Warranty and Registration Information	15
Notations Used in the Documentation	16
Where to Go for Additional Information	16
Projector Part Locations	16
Projector Parts - Front/Top	17
Projector Parts - Rear	18
Projector Parts - Base	19
Projector Parts - Control Panel	20
Projector Parts - Remote Control	22
Setting Up the Projector	25
Projector Placement	25
Projector Setup and Installation Options	25
Projection Distance	27
Projector Connections	29
Connecting to Computer Sources	29
Connecting to a Computer for USB Video and Audio	29
Connecting to a Computer for VGA Video	30
Connecting to a Computer for HDMI Video and Audio	31
Connecting to a Computer for USB Mouse Control	32
Connecting to a Computer for Sound	33
Connecting to Video Sources	33
Connecting to an HDMI Video Source	34
Connecting to an MHL-Compatible Device	34
Connecting to a Component Video Source	35
Connecting to a Composite Video Source	36
Connecting to a Video Source for Sound	37
Connecting to External USB Devices	38
USB Device Projection	38
Connecting a USB Device or Camera to the Projector	39
Selecting the Connected USB Source	39
Disconnecting a USB Device or Camera From the Projector	39
Connecting to a Document Camera	40
Installing Batteries in the Remote Control	40
Opening the Lens Cover	42
Using the Projector on a Network	43
Wireless Network Projection	43
Selecting Wireless Network Settings Manually	43
Wireless LAN Menu Settings	46
Selecting Wireless Network Settings in Windows	48
Selecting Wireless Network Settings on Mac	48
Using a QR Code to Connect a Mobile Device	48
Using NFC to Connect an Android Device	50
Setting Up Wireless Network Security	51
Wireless Network Projection from a Mobile Device (Screen Mirroring)	52
Screen Mirroring Restrictions	52
Selecting Screen Mirroring Settings	52
Connecting for Screen Mirroring with Miracast	54
Connecting for Screen Mirroring with a Windows 8.x/Windows 10 Computer	54
Secure HTTP	55
Importing a Web Server Certificate Using the Projector Menus	55
Controlling a Networked Projector Using a Web Browser	57
Using Basic Projector Features	61
Turning On the Projector	61
Using the Home Screen	63
Turning Off the Projector	65
Selecting the Language for the Projector Menus	66
Setting the Date and Time	67
Adjusting the Image Height	68
Image Shape	69
Automatically Correcting Image Shape with Screen Fit	69
Correcting Image Shape with the Keystone Buttons	71
Correcting Image Shape with Quick Corner	73
Resizing the Image with the Zoom Ring	75
Focusing the Image Using the Focus Ring	75
Focusing the Image Using the Focus Button	76
Remote Control Operation	77
Using the Remote Control as a Wireless Mouse	78
Using the Remote Control as a Pointer	79
Selecting an Image Source	80
Projection Modes	81
Changing the Projection Mode Using the Remote Control	81
Changing the Projection Mode Using the Menus	82
Image Aspect Ratio	83
Changing the Image Aspect Ratio	83
Available Image Aspect Ratios	84
Color Mode	85
Changing the Color Mode	85
Available Color Modes	86
Turning On Auto Iris	87
Controlling the Volume with the Volume Buttons	88
Projecting a PC Free Presentation	88
Supported PC Free File Types	88
Starting a PC Free Slide Show	90
Starting a PC Free PDF File Presentation	91
Starting a PC Free Movie Presentation	93
PC Free Display Options	94
Adjusting Projector Features	96
Shutting Off the Picture and Sound Temporarily	96
Stopping Video Action Temporarily	97
Zooming Into and Out of Images	98
Projector Security Features	99
Password Security Types	99
Setting a Password	99
Selecting Password Security Types	101
Entering a Password to Use the Projector	102
Saving a User's Logo Image to Display	103
Locking the Projector's Buttons	105
Unlocking the Projector's Buttons	106
Installing a Security Cable	107
Projector Identification System for Multiple Projector Control	107
Setting the Projector ID	107
Setting the Remote Control ID	108
Matching Multiple-Projector Display Quality	109
Projecting Two Images Simultaneously	111
Controlling a Presentation Using Hand Gestures	113
Adjusting the Menu Settings	116
Using the Projector's Menus	116
Image Quality Settings - Image Menu	118
Input Signal Settings - Signal Menu	120
Projector Feature Settings - Settings Menu	123
Projector Setup Settings - Extended Menu	125
Projector Network Settings - Network Menu	128
Projector Setup Settings - ECO Menu	130
Projector Information Display - Info Menu	131
Event ID Code List	132
Projector Reset Options - Reset Menu	134
Maintaining and Transporting the Projector	136
Projector Maintenance	136
Cleaning the Lens	136
Cleaning the Projector Case	137
Air Filter and Vent Maintenance	137
Cleaning the Air Filter and Vents	138
Replacing the Air Filter	138
Projector Lamp Maintenance	140
Replacing the Lamp	141
Resetting the Lamp Timer	145
Replacing the Remote Control Batteries	146
Transporting the Projector	148
Solving Problems	149
Projection Problem Tips	149
Projector Light Status	150
Using the Projector Help Displays	153
Solving Image or Sound Problems	154
Solutions When No Image Appears	154
Solutions When Image is Incorrect Using the USB Display Function	155
Solutions When \	156
Displaying From a PC Laptop	157
Displaying From a Mac Laptop	157
Solutions When \	157
Solutions When Only a Partial Image Appears	158
Solutions When the Image is Not Rectangular	158
Solutions When the Image Contains Noise or Static	159
Solutions When the Image is Fuzzy or Blurry	160
Solutions When the Image Brightness or Colors are Incorrect	161
Solutions to Sound Problems	161
Solving Projector or Remote Control Operation Problems	162
Solutions to Projector Power or Shut-Off Problems	163
Solutions to Problems with the Remote Control	163
Solutions to Password Problems	164
Solutions When a Battery Message Appears	165
Solutions to Gesture Presenter Problems	165
Solving Network Problems	165
Solutions When Wireless Authentication Fails	165
Solutions When You Cannot Access the Projector Through the Web	166
Solutions When You Cannot Connect Using Screen Mirroring	166
Solutions When the Image or Sound Contains Static When Using Screen Mirroring	167
Solutions When You Cannot Read the NFC Tag	167
Where to Get Help	168
Technical Specifications	169
General Projector Specifications	169
Projector Lamp Specifications	171
Remote Control Specifications	172
Projector Dimension Specifications	172
Projector Electrical Specifications	173
Projector Environmental Specifications	174
Projector Safety and Approvals Specifications	174
Supported Video Display Formats	174
USB Display System Requirements	177
Notices	178
Recycling	178
Important Safety Information	178
Important Safety Instructions	179
Restriction of Use	182
List of Safety Symbols (corresponding to IEC60950-1 A2)	182
FCC Compliance Statement	186
Open Source Software License	186
Binding Arbitration and Class Waiver	241
Trademarks	244
Copyright Notice	244
A Note Concerning Responsible Use of Copyrighted Materials	245

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167

• Make sure the mobile device settings are correct.

• You may not be able to connect immediately after disconnecting from the projector. Wait a while and

try connecting again.

• Restart the mobile device.

• If you have previously connected to the projector using Screen Mirroring, the device may have saved

the previous connection information. Delete the saved information and connect to the projector from

the list of available devices.

Parent topic:

Solving Network Problems

Solutions When the Image or Sound Contains Static When Using Screen Mirroring

If the projected image or sound contains static when connecting using Screen Mirroring, try the following

solutions:

• Avoid covering the Wi-Fi antenna of the mobile device.

• If you use a Screen Mirroring connection and an internet connection at the same time, the image may

freeze or contain noise. Disconnect from the internet to improve the connection speed of the mobile

device.

• Make sure the projection contents meet the Screen Mirroring requirements.

• Depending on the settings of the mobile device, the connection may be lost when the device enters

power saving mode. Check the power saving settings on the mobile device.

• Make sure your mobile device has the latest version of its wireless driver and firmware installed.

Parent topic:

Solving Network Problems

Solutions When You Cannot Read the NFC Tag

If you are unable to read the NFC tag on your mobile device, try the following solutions (PowerLite

1781W/1785W/1795F):

• Make sure the mobile device is unlocked and not in standby or sleep mode.

• Make sure the mobile device settings are correct.

• Make sure the NFC reader is activated on your mobile device.

• Adjust the position of the mobile device so that the NFC reader on the device is positioned over the

center of the NFC tag on the projector.

• Restart the mobile device.

Parent topic:

Solving Network Problems