This section describes maintenance tasks such as cleaning the projector and
replacing consumable parts.
Cleaning
You should clean the projector if it becomes dirty or if the quality of
projected images starts to deteriorate.
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. Then wipe it again
with a soft, dry cloth.
Use a commercially-available air blower, or use a lens cleaning paper to
gently wipe the lens.
If dust collects on the air filter or the air outlet, it can cause the internal
temperature of the projector to rise, and this can lead to problems with
operation and shortening of the optical engine's service life.
It is recommended that you clean these parts at least once every three
months. Clean them more often than this if using the projector in
particularly dusty environments.
Cleaning the Projector's Surface
Cleaning the Lens
CAUTION
Be sure to read the separate Safety Instructions/World-Wide Warranty
Terms before cleaning.
CAUTION
Do not use volatile substances such as wax, alcohol or thinner to
clean the projector's surface. These can cause the projector to warp
and make the coating finish peel off.
CAUTION
Do not rub the lens with harsh materials or subject the lens to shocks,
as it can easily become damaged.
Cleaning the Air Filters and Air Intake Vent
TIP
If the air filters are broken or if the warning message reappears after
they have been cleaned, they should be replaced. Replace with a new
air filter. See "Replacing the Air Filter".
s
p.104
100
Maintenance
User’s Guide
Replacing Consumables
This section describes how to replace the lamp and the air filters.
It is time to replace the lamp when:
•The message "Replace the Lamp." appears on the screen when
projection starts.
.
•When the Lamp indicator is flashing orange.
•The projected image gets darker or starts to deteriorate.
Lamp Replacement Period
A message will be displayed.
Flashing orange
TIP
•The lamp replacement message is set to appear after the following
periods of time in order to maintain the initial brightness and quality
of the projected images.
·When used continuously at high brightness: Approx. 1900 hours
·When used continuously at low brightness: Approx. 2900 hours
"Brightness Control"
s
p.62
•If you continue to use the lamp after this period, the possibility of the
lamp breaking becomes greater. When the lamp replacement
message appears, replace the lamp with a new one as soon as
possible, even if it is still working.
•Depending on the characteristics of the lamp and on the way it has
been used, the lamp may become darker or stop working before the
lamp warning message appears. You should always have a spare
lamp ready in case it is needed.
•Contact your dealer for a spare lamp.
101
Maintenance
User’s Guide
PROCEDURE
Turn off the projector's power, wait until the cool-
down period has ended and a "pip-pip" confirmation
buzzer sounds, and then disconnect the power cable.
The cool-down period lasts for about 20 seconds.
Wait until the lamp has cooled down, then remove the
lamp cover from the base of the projector.
It takes approximately one hour for the lamp to cool down by
itself after the cool-down period has finished.
While pressing the two hooks, pull the lamp cover up to
remove it.
Loosen the two lamp fixing screws.
Loosen the two lamp fixing screws with the screwdriver that is
supplied with the spare lamp (or your own cross head
screwdriver).
Replacing the Lamp
CAUTION
•If you are replacing the lamp because it has stopped working, it is
possible that the lamp is broken.
If replacing the lamp of a projector which has been installed on the
ceiling, you should always assume that the lamp is broken and
handle it with extreme care during removal. Furthermore, you
should stand to the side of the projector, not underneath it.
•Wait until the lamp has cooled down sufficiently before removing the
lamp cover. It takes a further one hour after the cool-down
g
period
has finished for the lamp to be cool enough.
1
2
3
102
Maintenance
User’s Guide
Take out the lamp.
Hold the lamp as shown in the illustration below and lift it up
and out of the projector.
If the lamp is broken replace it with a new lamp, or contact your
local dealer for further advice. If replacing the lamp yourself,
be careful to avoid pieces of broken glass.
Install the new lamp.
Insert the new lamp so that the lamp fits the place correctly and
once it is fully inserted, tighten the two screws.
Install the lamp cover.
Insert the two cover tabs into the projector, and then press the
other side of the lamp cover until it clicks into place.
4
5
6
TIP
•Install the lamp securely. If the lamp cover is removed, the lamp
turns off automatically as a safety precaution. Moreover, the lamp
will not turn on if the lamp or the lamp cover is not installed
correctly.
•The lamp contains mercury. Dispose of used lamps properly in
accordance with your local regulations.
103
Maintenance
User’s Guide
The projector has a built-in counter which keeps track of the lamp
operating time. When the cumulative operating time reaches a certain
point, it causes the replacement warning message to be displayed.
Therefore, the counter needs to be reset after the lamp has been replaced
with a new one. You can do this using the configuration menu.
PROCEDURE
Connect the power cable, turn on the projector's
power, and then press the [Menu] button.
The configuration menu will be displayed.
Select "Lamp-Hours Reset" from the "Reset" menu
and then press the [Enter] button.
Select "Yes" and then press the [Enter] button.
The lamp operating time will then be reset.
Resetting the Lamp Operating Time
TIP
Do not reset the lamp operating time except after the lamp has been
replaced, otherwise the lamp replacement period will not be indicated
correctly.
1
Remote Control
Projector
2
3
104
Maintenance
User’s Guide
If the air filters are broken or if the warning message reappears after they
have been cleaned, they should be replaced.
The air filter can be replaced even if the projector is installed on a ceiling.
PROCEDURE
Turn off the projector's power, wait until the cool-
down
g period has ended and a "pip-pip"
confirmation buzzer sounds, and then disconnect the
power cable.
The cool-down period lasts for about 20 seconds.
Remove the air filter.
Put your finger into the recess of the air filter and slide it
forward to remove it.
Install the new air filter.
Slide the air filter covers in from the outside and push them in
until they click into place.
Replacing the Air Filter
1
2
3
TIP
Dispose of used air filters properly in accordance with your local
regulations.
Air filter frame: Polycarbonate, ABS plastic
Air filter: Polyurethane foam
105
User’s Guide
Saving a User's Logo
You can record the image that is currently being projected as a user's logo.
PROCEDURE
Project the image that you would like to use as a
user's logo, and then press the [Menu] button.
Select "User’s Logo" from the "Extended" menu, and
then press the [Enter] button.
TIP
When a user's logo is recorded, the previous user's logo will be
erased.
1
Projector
Remote Control
2
TIP
•If the "User’s Logo Protect" function of "Password Protect" is set to
"ON", a message is displayed and the user's logo can not be
recorded. To record a user's logo, set "User’s Logo Protect" to
"OFF" first.
s
p.33
•If keystone correction or E-Zoom have been carried out, they will be
cancelled when the "User’s Logo" menu is selected.
106
Saving a User's Logo
User’s Guide
Select "Yes" in the sub-menu, then press the [Enter]
button.
The image to be recorded and a selection marquee
box will be displayed. Move the marquee box to select
the part of the image to use.
Tilt the [] button on the remote control or press the [], [],
[] and [] buttons on the projector's control panel to select the
area of the image to use as the user's logo, and then press the
[Enter] button.
3
TIP
When you press the [Enter] button on either the remote control or the
projector's control panel, the image signal will be displayed at their
original resolution, so if a signal with a resolution that is different
from the panel resolution of the projector is projected, or if a video
image is being projected, the display size will change.
4
TIP
User's logos can be saved at up to 480
×
360 dots in size.
107
Saving a User's Logo
User’s Guide
Select "Yes" at the confirmation screen, and then
press the [Enter] button.
Select the zoom rate in the Zoom rate setting screen,
and then press the [Enter] button.
Select "Yes" at the confirmation screen, and then
press the [Enter] button.
The image will then be saved. Once the image has been saved,
the message "Completed." will be displayed.
5
6
7
TIP
•Saving the user's logo may take a few moments (about 15 seconds).
Do not use the projector or any other sources which are connected to
the projector while the user's logo is being saved, otherwise it may
result in errors in projector operation.
•Once a user's logo has been saved, the logo setting cannot be
returned to the factory default.
108
User’s Guide
Optional Accessories and Consumables
The following optional accessories are available for purchase if required. This list of optional accessories is current as of June, 2004. Details of accessories are
subject to change without notice.
* A special method of installation is required in order to suspend the
projector from the ceiling. Please contact your dealer if you would like to
use this installation method.
Optional Accessories
Soft carrying case ELPKS16
Use this case if you need to carry the projector by hand.
You can put a laptop computer into the case.
60" screen ELPSC07
80" screen ELPSC08
100" screen ELPSC10
A portable roll-type screen. (Aspect ratiog 4:3)
50" portable screen ELPSC06
A compact screen which can be carried easily. (Aspect ratio 4:3)
VGA-HD15 PC cable ELPKC02
(1.8 m (6 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)
This is the same computer cable as the projector's accessory computer cable.
VGA-HD15 PC cable ELPKC09
(3 m (9.8 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)
VGA-HD15 PC cable ELPKC10
(20 m (65.6 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)
Use this extension cable if the accessory computer cable is too short.
Component video cable ELPKC19
(3 m (9.8 ft.) - for mini D-Sub 15-pin/RCA male × 3)
Component video cable ELPKC27
(0.35 m (1.15 ft.) - for mini D-Sub 15-pin/RCA female × 3)
Use to connect a component videog source.
Image presentation camera ELPDC04
Use to project books, OHP films and slides.
Ceiling plate* ELPFC03
Pipe 370 (370 mm (14.57 in.)/silver)* ELPFP04
Pipe 570 (570 mm (22.44 in.)/silver)* ELPFP05
Pipe 770 (770 mm (30.31 in.)/silver)* ELPFP06
Use when installing the projector on a high ceiling or a ceiling with veneer
panels.
Ceiling mount * ELPMB18
Use when installing the projector to a ceiling.
Consumables
Spare lamp ELPLP32
Use as a replacement for spent lamps.
Filter kit ELPAF08
(2 air filters)
Use as a replacement for used air filters.
109
User’s Guide
Glossary
The following is an explanation of some of the terms used in this guide which may be unfamiliar or which are not explained in the text of this guide itself. Further
information can be obtained by referring to other commercially-available publications.
5BNCA port used to input analogue video signals.
Abs. Color Temp.The temperature of an object which is emitting light. If the absolute colour temperature is high, the colours tend to take on a
bluish tinge. If the absolute colour temperature is lower, the colours tend to take on a reddish tinge.
Ad hoc modeA method of wireless LAN connection that communicates with wireless LAN clients without using an access point.
Aspect ratioThe ratio between an image's length and its height. HDTV images have an aspect ratio of 16:9 and appear elongated. The
aspect ratio for standard images is 4:3.
Authentication serverThis is a server that centrally manages user authentication. By using an authentication server, management of user information
and user authentication tasks can be centralised. In addition, many authentication servers use high-level authentication
methods and so they also tend to be highly secure.
CCXAbbreviation for Cisco Compatible Extensions. This is a security technology for wireless LANs developed by Cisco Systems,
Inc. It uses RADIUS serverg for authentication. Several authentication methods are available for CCX, and this projector uses
LEAPg authentication.
Component videoVideo signals which have the video brightness signals and colour signals separated, in order to provide better image quality.
In high-definition TV (HDTV), it refers to images which consist of three independent signals: Y (luminance signal), and Pb
and Pr (colour difference signals).
Composite videoVideo signals which have the video brightness signals and colour signals mixed together. The type of signals commonly used
by household video equipment (NTSC, PAL and SECAM formats).
The carrier signal Y (luminance signal) and chroma (colour) signal which are contained in the colour bar are overlapped to
form a single signal.
ContrastThe relative brightness of the light and dark areas of an image can be increased or decreased in order to make text and
graphics stand out more clearly, or to make them appear softer. Adjusting this particular property of an image is called
"contrast adjustment".
Cool-downThis is the process by which the projector's lamp is cooled down after it has become hot through use. Cool-down is carried out
automatically when the [Power] button is pressed to turn off the power. Do not disconnect the power cable while cool-down is
in progress, otherwise the cool-down process will not work properly. If the cool-down period is not allowed to finish normally,
the projector's lamp and internal components will remain at high temperatures, and this may shorten the operating life of the
lamp or cause problems with the operation of the projector.
DHCPAbbreviation of Dynamic Host Configuration Protocol. This protocol automatically assigns an IP address to a computer
connected to a network.
Dolby DigitalA sound format developed by Dolby Laboratories. Normal stereo is a 2-channel format which uses two speakers. Dolby
Digital is a 6-channel (5.1-channel) system which adds to this a centre speaker two rear speakers and a sub-woofer.
DPOFAbbreviation of Digital Print Order Format, which is a format used to record infomation concerning the printing of
photographs taken with a digital camera (which images to print, how many copies, etc.) to recordable media, such as a
memory card.
110
Glossary
User’s Guide
EMP Link 21LA utility software program that allows the projector to be connected to a computer so that the computer can be used to control
the projector. For details on acquiring the software and for instructions on using the software and compatible projector
models, please visit the Web site http://www.epson.co.uk/support/download/index.htm.
ESSIDESS is an abbreviation of Extended Service Set. The ESSID is an identification number for connecting with a counterpart on
a wireless LAN. Wireless communication is possible between devices with corresponding ESSID numbers.
With Macintosh computers, the ESSID is used as the network name that is displayed for "computer-to-computer" networks.
GatewayA server (router) for communicating across a network divided according to subnet masks.
HDTVAn abbreviation for High-Definition Television. It refers to high-definition systems which satisfy the following conditions.
•Vertical resolution of 750p or 1125i or greater (p = progressive scanningg, i = interlaced scanningg)
•Screen aspect ratiog of 16:9
•Dolby Digitalg audio reception and playback (or output)
Interlaced scanningA method of image scanning whereby the image data is divided into fine horizontal lines which are displayed in sequence
starting from left to right and then from the top to the bottom of the screen. The even-numbered lines and odd-numbered lines
are displayed alternately.
IP AddressA series of numbers that identifies a device that is connected to a network.
LEAPOne of the authentication methods used by CCXg. It uses usernames and passwords for authentication without using
electronic signatures.
MAC addressMAC is an abbreviation of Media Access Control. The MAC address is an ID number unique to each network card. A unique
number is assigned to each network card. Data is transmitted between cards (devices) based on this identification.
Progressive scanningA method of image scanning whereby the image data from a single image is scanned sequentially from top to bottom to create
a single image.
RADIUS serverRADIUS is an abbreviation for Remote Authentication Dialin User Service. It is a protocol that is used for authenticating
transmissions for a variety of network servers including wireless LANs. A RADIUS server is an authentication serverg that
stores information such as usernames and passwords and concentrates functions such as authenticating access to wireless
LAN access points. By using a RADIUS server, access points and user information can be centrally managed without needing
to store user information separately at each access point when there are several access points on a wireless LAN.
Refresh rateThe light-emitting element of a display maintains the same luminosity and colour for an extremely short time. Because of this,
the image must be scanned many times per second in order to refresh the light-emitting element. The number of refresh
operations per second is called the "refresh rate", and is expressed in hertz (Hz).
Resize displayThis function is used to allow images that have a resolution more than or less than the projector's panel resolution to be
projected so that they fill the whole of the projection area.
SDTVAn abbreviation for Standard Definition Television. It refers to standard television systems which do not satisfy the conditions
for High-Definition Television.
Security lockA device consisting of a projector case with a hole in it that a commercially-available theft-prevention cable can be passed
through in order to secure the device to a table or pillar. This projector is compatible with the Microsaver Security System
manufactured by Kensington.
111
Glossary
User’s Guide
SNMPThis is an abbreviation of Simple Network Management Protocol. It is a protocol in a TCP/IP network for monitoring and
controlling communication devices on the network, such as routers, computers, and terminals across the network.
Squeeze modeIn this mode, wide-screen images in 16:9 mode are compressed in the horizontal direction so that they are stored on the
recording medium as 4:3 images.
When these images are played back by the projector in squeeze mode, they are restored to their original 16:9 format.
sRGBAn international standard for colour intervals that was formulated so that colours which are reproduced by video equipment
can be handled easily by computer operating systems (OS) and the Internet.
Subnet maskThis is a number which defines, from the IP address, the number of bits used in network addresses of assigned networks
(subnets).
SVGA
A type of video signal with a resolution of 800 (horizontal)
×
600 (vertical) dots which is used by IBM PC/AT-compatible computers.
S-VideoA video signal which has the luminance component and colour component separated in order to provide better image quality.
It refers to images which consist of two independent signals: Y (luminance signal), and C (colour signal).
SXGAA type of video signal with a resolution of 1280 (horizontal) × 1024 (vertical) dots which is used by IBM PC/AT-compatible
computers.
Sync (synchronisation)The signals output from computers and RGB video equipment have a specific frequency. If the projector frequency does not
match this frequency, the resulting images will not be of a good quality. The process of matching the phases of these signals
(the relative position of the crests and troughs in the signal) is called "synchronisation". If the signals are not synchronized,
problems such as flickering, blurriness and horizontal interference can occur.
TKIPAbbreviation for Temporal Key Integrity Protocol. This is an encoding method used for WPAg. The encryption key is
renewed after a certain period of time to make it harder to break the encryption code.
TrackingThe signals output from computers and RGB video equipment have a specific frequency. If the projector frequency does not
match this frequency, the resulting images will not be of a good quality. The process of matching the frequency of these
signals (the number of crests in the signal) is called "tracking". If tracking is not carried out correctly, wide vertical stripes will
appear in the projected images.
Trap IP addressThis is the IP addressg of the messaged computer used for error notification in SNMP.
USBAn abbreviation for Universal Serial Bus. USB is an interface for connecting personal computers to peripheral devices which
only support relatively low data transmission speeds.
UXGAA type of video signal with a resolution of 1600 (horizontal) × 1200 (vertical) dots which is used by IBM PC/AT-compatible
computers.
VGAA type of video signal with a resolution of 640 (horizontal) × 480 (vertical) dots which is used by IBM PC/AT-compatible
computers.
WEPThis is an abbreviation of Wired Equivalent Privacy. This is a security method which encrypts data during transmission.
Data communication cannot be performed unless the sending and receiving machines are registered with the same encryption
key by the WEP.
112
Glossary
User’s Guide
WPAAbbreviation for Wi-Fi Protected Access. This is an encryption standard that improves security which is a weak point of
WEPg. TKIPg is used as the encryption method.
XGAA type of video signal with a resolution of 1024 (horizontal) × 768 (vertical) dots which is used by IBM PC/AT-compatible
computers.
113
User’s Guide
List of ESC/VP21 Commands
Command List
When a power on command is sent to the projector, the power will turn on
and the projector will change to warm-up mode. When the power has
turned on, a colon ":" (3Ah) will be returned.
When the projector executes a command, it returns a ":" and waits for the
next command to be sent.
If command processing terminates with an error, the projector outputs an
error message and then returns the ":" code.
*When issuing any of the above commands, tack a Carriage Return (CR)
code (0Dh) on to the end.
USB connection
*The [USB Type A] port (EMP-745/737 only) cannot be used as a USB
hub.
ItemCommand
Power ON/OFF
ONPWR ON
OFFPWR OFF
Signal selection
Computer (Auto)SOURCE 1F
ComputerSOURCE 11
Component VideoSOURCE 14
VideoSOURCE 41
S-VideoSOURCE 42
A/V Mute ON/OFF
ONMUTE ON
OFFMUTE OFF
A/V Mute Selection
BlackMSEL 00
BlueMSEL 01
User’s LogoMSEL 02
• Connector shape: USB (type B)
<At projector><At computer>
(type B)
114
List of ESC/VP21 Commands
User’s Guide
USB Connection Setup
In order to control the projector using ESC/VP21 commands via a USB
connection, the following preparations must be carried out.
PROCEDURE
Download the USB driver (USB-COM Driver) from the
EPSON website to your computer.
The URL is as follows.
http://www.epson.co.uk/support/download/index.htm
.
Install the downloaded USB driver on your computer.
Read the instructions displayed on the download screen.
Change the "Link 21L" setting in the "Extended"
menu to "ON".
Turn the projector's power off.
Wait until the cool-down
g period has ended and a
"pip-pip" confirmation buzzer sounds, and then turn
on the power.
Once the projector's power has turned back on, communication
via a USB Connection will then be possible.
1
2
3
4
5
CAUTION
The setting you made will be disabled if you disconnect the power
cable before the cool-down period has ended and a "pip-pip"
confirmation buzzer sounds.
115
User’s Guide
List of Supported Monitor Displays
*Connection is not possible if the equipment does not have a VGA output
port.
The projection of some signals not listed in the table may still be possible.
However, not all functions may be supported.
Computer/RGB Video
Signal
Refresh rate
g
(Hz)
Resolution
(dots)
Resolutions for
resize display
g
(dots)
VGA
g
60640×4801024×768
VGAEGA640×3501024×560
VESA60/72/75/85,iMac*640×4801024×768
SVGA
g
56/60/72/75/
85,iMac*
800×6001024×768
XGA
g
60/70/75/85,iMac*1024×7681024×768
SXGA
g
70/75/851152×8641024×768
SXGA60/75/851280×9601024×768
SXGA60/75/851280×1024960×768
UXGA
g
601600×12001024×768
MAC13"640×4801024×768
MAC16"832×6241024×768
MAC19"1024×7681024×768
MAC19"601024×7681024×768
MAC21"1152×8701016×768
SDTV
g
(625i)50720×5761024×768
SDTV(525i)60720×4801024×768
SDTV(525p)60720
×
4801024
×
768
HDTV
g
(750p)
601280×7201024×576
Component Video/RGB Video
Signal
Refresh
rate
g
(Hz)
Resolutions (dots)
Aspect ratio
g
4:3 Aspect ratio 16:9
SDTV
g
(525i)
(D1)
601024×7681024×576
SDTV (625i)501024×7681024×576
SDTV (525p)
(D2)
601024×7681024×576
HDTV
g
(750p)
16:9 (D4)
601024×7681024×576
HDTV (1125i)
16:9 (D3)
601024×7681024×576
Composite Video/S-Video
Signal
Refresh
rate
g
(Hz)
Resolutions (dots)
Aspect ratio
g
4:3 Aspect ratio 16:9
TV (NTSC)601024×7681024×576
TV (PAL,
SECAM)
501024×7681024×576
116
User’s Guide
Specifications
*1The USB connector is not guaranteed to operate correctly with all USB-compatible devices.
*2Supported Memory Cards by Projector's Card Slot
•CompactFlash cards (using a PC card adapter)
•ATA Flash cards
•Memory Sticks (using a PC card adapter)
•Smart Media (using a PC card adapter)
•SD/MMC cards (using a PC card adapter)
Product nameEMP-745EMP-737EMP-740EMP-732
Dimensions276 (W) × 70 (H) × 193 (D) mm (not including feet)
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