Dukane Imagepro 8755n Projector Users Manual

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Presentation tools
This application will appear in the Windows 
notification area once it starts. You can quit the 
application from your computer by selecting “Quit” on 
the menu.
• The “LiveViewer” (refer to the  
Network Guide) and this application cannot 
be used at the same time. If you connect your 
computer to the projector by using a USB cable 
while the “LiveViewer” is running, the following message will be displayed.
• Depending on the software installed on your computer, images on your 
computer cannot be transferred using “LiveViewer Lite for USB”.
• If any application software having the firewall function is installed into your 
computer, make the firwall function invalid with following the user's manual. 
• Some security software may block image transmission. Please change the 
security software setting to allow the use of "LiveViewer Lite for USB".
• When the audio input from  USB TYPE B is selected, if the sound level is still 
low even after raising the volume level in the projector to the maximum, check 
whether your computer outputs audio and raise the volume level accordingly .
• If the computer in use is equipped with  HDMI port, the audio setting will be 
changed and sound interruption or noise may occur when the  HDMI cable is 
connected or disconnected during USB Display. Restart  USB Display for this 
case. 
• Image distortion or sound interruption may occur when  “LiveViewer ” is 
connected to LAN (wireless or wired) during USB Display. The above decline in 
performance is noticeable especially when multiple computers are connected to 
“ LiveViewer ”.
NOTE
USB Display(Windows computer) (continued) 
						

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Presentation tools
Display :  
The Floating menu is displayed, and the icon disappears from the 
Windows notification area.
Quit  :   The application is closed, and the icon disappears from the Windows 
notification area.
The menu shown in the right will be displayed 
when you right-click the application icon in the 
Windows notification area. USB Display(Windows computer) (continued)
Right-Click menu
• If you wish to restart the application, you need to unplug the USB 
cable and plug it again. NOTE
If you select “Display” on the Right-Click 
menu, the Floating menu shown in the right 
will appear on your computer screen.
 Start capture button The transmission to the projector is started 
 and the images will be displayed.
 Stop button The image transmission is stopped.
 Hold button The image on the projector’s screen is temporally frozen. The last image before 
the button is clicked is remained on the screen. You can revise the image data 
on your computer without showing it on the projector's screen. 
 Option button The Options window is displayed.
 Minimize button The Floating menu is closed, and the icon reappears in the Windows notification 
area.
Floating menu
• If you click the Start capture button and/or Stop button repeatedly , 
images may not be displayed on the screen. NOTE 
 
  
						

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Presentation tools
If you select the Option button on the Floating 
menu, the Options window is displayed.
Optimize Performance
The “LiveViewer Lite for USB” captures  
screenshots in JPEG data and sends them to  
the projector. The “LiveViewer Lite for USB” has  
two options that have different compression rate  
of JPEG data. Transmission speedSpeed takes priority over Image quality. 
It makes JPEG compression rate higher.
The screen on the projector is rewritten quicker because the transferred 
data is smaller, but the image quality is worse.
Image quality Image quality takes priority over Speed. 
It makes JPEG compression rate lower.
The screen on the projector is rewritten slower because the transferred 
data is larger, but the image quality is better.
Keep PC resolution
If you remove the check mark from the [Keep PC resolution] box, the screen 
resolution of  your computer will be switched as follows, and the display speed 
may be faster. 
8755N, 8928 , 8930, 8937: 1024 x 768 (XGA)
8929W, 8932W: 1280 x 800 (WXGA) If your computer does not support the display resolution specified above, a 
smaller resolution that is the largest among the resolutions that are supported by 
the computer will be selected.
Sound 
Turns the sound on/off. The image quality may deteriorate when you play back 
audio data transferred together with the image data. To give priority to the image 
quality, turn off the sound by selecting the checkbox.
Display LiveViewer Lite for USB 
If you want to display the "LiveViewer Lite for USB" application window on the
screen, please check the box.
About 
The version information of the “LiveViewer Lite for USB”. USB Display(Windows computer) (continued)
Options window
• When the resolution is changed, the arrangement of icons on 
computer desktop screen may be changed.
• If one of the AUDIO IN ports is selected or 
 is selected for USB TYPE B 
in AUDIO SOURCE of the AUDIO menu  (
49), audio sound operation in the 
Options window will be disabled. NOTE 
						

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USB Display(Mac computer)
The projector can display images transferred from a computer via an USB cable (12).
• The image transmission from the computer is suspended while the 
password-protected screen saver is running. To resume the transmission, exit 
the screen saver.
• 
If "Waiting for connection." remains displayed while the USB cable is connected, 
remove the USB cable and reconnect after a while.
• Check our web site for the latest version of the software and its manual.
(
 User's Manual (concise))
Follow the instructions that can be obtained at the site for updating.
NOTE
Hardware and software requirement for computer
• OS: Mac OSX 10.5(Intel)
          Mac OSX 10.6(Intel)
          Mac OSX 10.7(Intel)
This application is not compatible with Power PC.
• Graphic card: 16 bit, XGA or higher
• Memory: 512 MB or higher
• Hard disk space: 30 MB or higher
Starting USB Display
(continued on next page)
Presentation tools
When you connect your computer to the 
USB TYPE B port on the projector 
using a USB cable, the projector will be recognized as a CD-ROM drive on your 
computer. Double click the CD-ROM, then 
double click 
"LiveViewerLiteForUSB_MacOS.app.". 
The application, “LiveViewer Lite for USB”, 
will close automatically when the USB 
cable is unplugged. However, it may remain 
displayed at times. 
						

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Presentation tools
• The “LiveViewer” (refer to the  
Network Guide) and this application cannot be 
used at the same time. If you connect your computer 
to the projector by using a USB cable while the 
“LiveViewer” is running, the following message will 
be displayed.
• Depending on the software installed on your computer, images on your 
computer cannot be transferred using “LiveViewer Lite for USB”.
• If any application software having the firewall function is installed into your 
computer, make the firwall function invalid with following the user's manual. 
• Some security software may block image transmission. Please change the 
security software setting to allow the use of "LiveViewer Lite for USB".
• When the audio input from  USB TYPE B is selected, if the sound level is still 
low even after raising the volume level in the projector to the maximum, check 
whether your computer outputs audio and raise the volume level accordingly .
• If the computer in use is equipped with  HDMI port, the audio setting will be 
changed and sound interruption or noise may occur when the  HDMI cable is 
connected or disconnected during USB Display. Restart  USB Display for this 
case. 
• Image distortion or sound interruption may occur when  “LiveViewer ” is 
connected to LAN (wireless or wired) during USB Display. The above decline in 
performance is noticeable especially when multiple computers are connected to 
“ LiveViewer ”.
NOTE
USB Display(Mac computer) (continued) 
						

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Presentation tools
USB Display(Mac computer) (continued)
Menu
If you select “Display” on the Right-Click menu, the Floating menu shown in the 
right will appear on your computer screen.
 Start capture buttonThe transmission to the projector is started 
 and the images will be displayed.
 Stop button The image transmission is stopped.
 Hold button The image on the projector’s screen is temporally frozen. The last image before 
the button is clicked is remained on the screen. You can revise the image data 
on your computer without showing it on the projector's screen. 
 Option button The Options window is displayed.
 Minimize button The Floating menu is closed, and the icon reappears in the Windows notification 
area.
 Exit button The Floating menu is closed.
• If you click the Start capture button and/or Stop button repeatedly , 
images may not be displayed on the screen. NOTE

 

 
						

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Presentation tools
If you select the Option button on the Floating 
menu, the Options window is displayed.
Optimize Performance
The “LiveViewer Lite for USB” captures  
screenshots in JPEG data and sends them to  
the projector. The “LiveViewer Lite for USB” has  
two options that have different compression rate  
of JPEG data. Transmission speedSpeed takes priority over Image quality. 
It makes JPEG compression rate higher.
The screen on the projector is rewritten quicker because the transferred 
data is smaller, but the image quality is worse.
Image quality Image quality takes priority over Speed. 
It makes JPEG compression rate lower.
The screen on the projector is rewritten slower because the transferred 
data is larger, but the image quality is better.
Keep PC resolution
If you remove the check mark from the [Keep PC resolution] box, the screen 
resolution of  your computer will be switched as follows, and the display speed 
may be faster. 
8755N, 8928 , 8930, 8937: 1024 x 768 (XGA)
8929W, 8931W: 1280 x 800 (WXGA) If your computer does not support the display resolution specified above, a 
smaller resolution that is the largest among the resolutions that are supported by 
the computer will be selected.
Sound 
Turns the sound on/off. The image quality may deteriorate when you play back 
audio data transferred together with the image data. To give priority to the image 
quality, turn off the sound by selecting the checkbox.
About 
The version information of the “LiveViewer Lite for USB”. USB Display(Mac computer) (continued)
Options window
• When the resolution is changed, the arrangement of icons on 
computer desktop screen may be changed.
• If one of the AUDIO IN ports is selected or 
 is selected for USB TYPE B 
in AUDIO SOURCE of the AUDIO menu  (
49), audio sound operation in the 
Options window will be disabled. NOTE 
						

							108
Maintenance 
Maintenance
A lamp has finite product life. Using the lamp for long periods of time could cause 
the pictures darker or the color tone poor. Note that each lamp has a different 
lifetime, and some may burst or burn out soon after you start using them. 
Preparation of a new lamp and early replacement are recommended.  To prepare 
a new lamp, make contact with your dealer and tell the lamp type number .
Replacing the lamp
Type number : 1
1.Turn the projector off, and unplug the power cord. 
Allow the projector to cool for at least 45 minutes.
2.Prepare a new lamp. If the projector is mounted on 
a ceiling, or if the lamp has broken, also ask the 
dealer to replace the lamp.
3.Loosen the screw (marked by arrow) of the lamp 
cover and then slide and lift the lamp cover to the 
side to remove it.
4.Loosen the 3 screws (marked by arrow) of the lamp, and slowly pick up the 
lamp by the handles. Never loosen any other screws.
5.Insert the new lamp, and retighten firmly the 3 
screws of the lamp that are loosened in the previous 
process to lock it in place.
6.While putting the interlocking parts of the lamp cover 
and the projector together, slide the lamp cover back in 
place. Then firmly fasten the screw of the lamp cover.
7.Turn the projector on and reset the lamp time using 
the LAMP TIME item in the OPTION menu.
In case of replacement by yourself, follow the 
following procedure. Replacing the lamp
Handles
(4)  Point at the LAMP TIME using the ▼/▲ button, then press the ► button. A dialog will appear.
(5)  Press the ► button to select “OK” on the dialog. It performs resetting the lamp time.
•  Please reset the lamp time only when you have replaced the lamp, 
for a suitable indication about the lamp. NOTE
lamp cover
►Do not touch any inner space of the projector, while the lamp 
is taken out. CAUTION
4 3
6
(1) Press the MENU button to display a menu. 
(2) 
 Point at the ADVANCED MENU in the menu using 
the ▼/▲ button, then press the ► button.
(3) 
 Point at the OPTION in the left column of the menu 
using the ▼/▲button, then press the ► button. 
						

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Maintenance
Lamp warning
Replacing the lamp (continued)
 HIGH VOLTAGE  HIGH TEMPERATURE HIGH PRESSURE
►The projector uses a high-pressure mercury glass lamp. The lamp 
can break with a loud bang, or burn out, if jolted or scratched, handled while hot, or 
worn over time. Note that each lamp has a different lifetime, and some may burst or 
burn out soon after you start using them. In addition, if the bulb bursts, it is possible 
for shards of glass to fly into the lamp housing, and for gas containing mercury and 
dust containing fine particles of glass to escape from the projector’s vent holes.
►About disposal of a lamp:  This product contains a mercury lamp; do not put 
it in a trash. Dispose of it in accordance with environmental laws.
•   For lamp recycling, go to www.lamprecycle.org (in the US).
•   For product disposal, consult your local government agency  
or www.eiae.org (in the US) or www.epsc.ca (in Canada).
For more information, call your dealer. WARNING
•  If  the  lamp  should  break  (it  will  make  a  loud  bang  when  it  does), 
unplug  the  power  cord  from  the  outlet,  and  make  sure  to  request  a 
replacement  lamp  from  your  local  dealer.  Note  that  shards  of  glass 
could damage the projector’s internals, or cause injury during handling, 
so please do not try to clean the projector or replace the lamp yourself.
• 
If the lamp should break (it will make a loud bang when it does), ventilate the 
room  well,  and  make  sure  not  to  inhale  the  gas  or  fine  particles  that  come  out 
from the projector's vent holes, and not to get them into your eyes or mouth.
• Before replacing the lamp, turn the projector off and unplug the power 
cord,  then  wait  at  least  45  minutes  for  the  lamp  to  cool  sufficiently. 
Handling the lamp while hot can cause burns, as well as damaging the lamp.
• Never unscrew except the appointed (marked by an arrow) screws.
•  Do  not  open  the  lamp  cover  while  the  projector  is  suspended  from 
a  ceiling.  This  is  dangerous,  since  if  the  lamp’s  bulb  has  broken,  the 
shards  will  fall  out  when  the  cover  is  opened.  In  addition,  working  in 
high  places  is  dangerous,  so  ask  your  local  dealer  to  have  the  lamp 
replaced even if the bulb is not broken.
•  Do  not  use  the  projector  with  the  lamp  cover  removed. At  the  lamp 
replacing,  make  sure  that  the  screws  are  screwed  in  firmly.  Loose 
screws could result in damage or injury.
•  Use  only  the  lamp  of  the  specified  type.  Use  of  a  lamp  that  does  not 
meet  the  lamp  specifications  for  this  model  could  cause  a  fire,  damage  or 
shorten the life of this product.
•  If  the  lamp  breaks  soon  after  the  first  time  it  is  used,  it  is  possible 
that  there  are  electrical  problems  elsewhere  besides  the  lamp.  If  this 
happens, consult your local dealer or a service representative.
• 
Handle with care: jolting or scratching could cause the lamp bulb to burst during use.• Using the lamp for long periods of time, could cause it dark, not to light up or to burst. 
When  the  pictures  appear  dark,  or  when  the  color  tone  is  poor,  please  replace  the 
lamp as soon as possible. Do not use old (used) lamps; this is a cause of breakage.
Disconnect 
the plug 
from the  power outlet 
						

							110
Maintenance
The air filter unit of this projector consists of a filter cover, two kinds of filters, and 
a filter frame. The new double large filters system is expected to function longer. 
However, please check and clean it periodically to keep ventilation needed for 
normal operation of the projector.
When the indicators or a message prompts you to clean the air filter, comply with 
it as soon as possible. Replace the filters when they are damaged or too soiled. 
To prepare new filters, make contact with your dealer and tell the following type 
number.
Cleaning and replacing the air filter
Type number : MU06481 (Filter set)
1.Turn the projector off, and unplug the power cord. 
Allow the projector to sufficiently cool down.
2.Use a vacuum cleaner on and around the filter cover.
3.While supporting the projector with one hand, use 
your other hand to pull the filter cover forward in the 
direction of the arrow.
4.Use a vacuum cleaner for the filter vent of the 
projector and the outer side of the filter unit.
5.Take the filters out while holding the filter cover.
7.Put the filters back into the filter cover. 
Put the coarse meshed filter into a filter cover 
first. Then put the fine meshed filter on the coarse 
meshed one, turning its stitched side up.
8.Put the filter unit back into the projector.
When you replace the lamp, please replace the air filter. An air filter of specified 
type will come together with a replacement lamp for this projector
.
(continued on next page) Filter cover
Filter unit
 Filter cover
Filter (fine meshed) Filter (coarse meshed)
2
4 3
7
Stitched  
side
6.Use a vacuum cleaner on both sides of the filters. 
When vacuuming up the fine meshed filter, hold it 
so it will not be sucked in. If the filters are damaged 
or heavily soiled, replace them with the new ones.