Dukane Imagepro 8755j Projector Users Manual

							51
SECURITY menu
ItemDescription
MY TEXT 
PASSWORD
The MY TEXT PASSWORD function can prevent the MY TEXT from being 
overwritten. When the password is set for the MY TEXT;
• The MY TEXT DISPLAY menu will be unavailable, which can prohibit 
changing the DISPLAY setting.
• The MY TEXT WRITING menu will be unavailable, which can prevent the 
MY TEXT from being overwritten.
1 Turning on the MY TEXT PASSWORD1-1   Use the ▲/▼ buttons on the SECURITY menu to 
select the MY TEXT PASSWORD and press the 
► button to display the MY TEXT PASSWORD 
on/off menu.
1-2   Use the ▲/▼ buttons on the MY TEXT 
PASSWORD on/off menu to select ON. The 
ENTER NEW PASSWORD box (small) will 
be displayed.
1-3   Use the ▲/▼/◄/► buttons to enter the 
password. Move the cursor to the right side 
of the ENTER NEW PASSWORD box (small) 
and press the ► button to display the NEW 
PASSWORD AGAIN box, and then enter the 
same password again.
1-4   Move the cursor to the right side of the 
NEW PASSWORD AGAIN box and press 
► button to display the NOTE NEW 
PASSWORD box for about 20 seconds, 
then please make note of the password 
during this time.
Pressing the ENTER button on the remote control or ► button on the 
projector will return to the MY TEXT PASSWORD on/off menu. 
2 Turning off the MY TEXT PASSWORD2-1   Follow the procedure in 1-1 to display the MY TEXT PASSWORD on/off 
menu.
2-2   Select OFF to display the ENTER 
PASSWORD box (large). Enter the 
registered password and the screen will 
return to the MY TEXT PASSWORD on/off 
menu. 
If an incorrect password is input, the menu will 
close. If necessary, repeat the process from 2-1
3 If you have forgotten your password3-1   Follow the procedure in 1-1 to display the MY TEXT PASSWORD on/off 
menu.
3-2   Select OFF to display the ENTER PASSWORD box (large). The 10 digit 
inquiring code will be displayed inside the box. 
3-3   Contact your dealer with the 10 digit inquiring code. Your password will 
be sent after your user registration information is confirmed.
ENTER NEW PASSWORD  
box (small)
ENTER PASSWORD box  (large)
(continued on next page) 
						

							52
SECURITY menu
ItemDescription
MY TEXT  DISPLAY
(1)   Use the ▲/▼ buttons on the SECURITY menu to 
select the MY TEXT DISPLAY and press the ► 
button to display the MY TEXT DISPLAY on/off 
menu.
(2)   Use the ▲/▼ buttons on the MY TEXT DISPLAY on/off menu to select 
on or off.
ON  ó OFF
When it is set ON, the MY TEXT will be displayed 
on the START UP screen and the INPUT_
INFORMATION when the INFORMATION on the 
SERVICE menu is chosen.
• This function is available only when the MY TEXT 
PASSWORD function is set to the OFF.
MY TEXT 
WRITING
(1)   Use the ▲/▼ buttons on the 
SECURITY menu to select the MY 
TEXT WRITING and press the ► 
button. The MY TEXT WRITING dialog 
will be displayed.
(2)    The current MY TEXT will be displayed 
on the first 3 lines. If not yet written, the 
lines will be blank.  
Use the ▲/▼/◄/► buttons and the 
ENTER or INPUT button to select and 
enter characters. The RESET button 
can be used to erase 1 character at 
a time. Also if you move the cursor to 
DELETE or ALL CLEAR on screen and 
press the ENTER or INPUT button, 
1 character or all characters will be 
erased. The MY TEXT can be input up 
to 24 characters on each line.
(3)    To change an already inserted 
character, press the ▲/▼ button to 
move the cursor to one of the first 3 
lines, and use the ◄/► buttons to 
move the cursor on the character to be 
changed.
After pressing the ENTER or INPUT button, the character is selected. 
Then, follow the same procedure as described at the item (2) above.
(4)    To finish entering text, move the cursor to the OK on screen and press 
the ENTER or INPUT button. To revert to the previous MY TEXT without 
saving changes, move the cursor to the CANCEL on screen and press 
the ENTER or INPUT button.
• The MY TEXT WRITING function is available only when the MY TEXT 
PASSWORD function is set to OFF. 
						

							53
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 : 456-8755J
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. 
						

							54
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, when 
the bulb bursts, it is possible for shards of glass to fly into the lamp housing, and 
for gas containing mercury 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  breathe  the  gas  that 
comes out of the projector vents, or get it in 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.
•  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 
						

							55
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 onto the 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. 
						

							56
Maintenance
Cleaning and replacing the air filter (continued)
9.Turn the projector on and reset the filter time using the FILTER TIME item in 
the EASY MENU.
►Before taking care of the air filter, make sure the power cable 
is not plugged in, then allow the projector to cool sufficiently. Taking care of the 
air filter in a high temperature state of the projector could cause an electric shock, 
a burn or malfunction to the projector.
►Use only the air filter of the specified type. Do not use the projector without the 
air filter or the filter cover. It could result in a fire or malfunction to the projector.
►Clean the air filter periodically. If the air filter becomes clogged by dust or the 
like, internal temperatures rise and could cause a fire, a burn or malfunction to 
the projector. WARNING
• Please replace the air filter when it is damaged or too soiled.
• When you replace the projection lamp, please replace the air filter . An air filter 
of specified type will come together with a replacement lamp for this projector .
• Please reset the filter time only when you have cleaned or replaced the air 
filter, for a suitable indication about the air filter.
• The projector may display the message such as “CHECK THE AIR FLOW” or 
turn off the projector, to prevent the internal heat level rising. NOTE (1) Press the MENU button to display a menu. 
(2)  
Point at the FILTER TIME using the ▼/▲ button, then press the ► button. 
A dialog will appear.
(3)   Press the ► button to select “OK” on the dialog. It performs resetting the 
filter time. 
						

							57
Maintenance
Other care
In order to ensure the safe use of your projector, please have it cleaned and 
inspected by your dealer about once every year.
1.Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
2.After making sure that the projector is cool adequately, lightly wipe the lens 
with a commercially available lens-cleaning wipe. Do not touch the lens 
directly with your hand.
If the lens is flawed, soiled or fogged, it could cause deterioration of display 
quality. Please take care of the lens, being cautious of handling.
►Before caring, make sure the power cord is not plugged in, 
and then allow the projector to cool sufficiently. The care in a high temperature 
state of the projector could cause a burn and/or malfunction to the projector .
►Never try to care for the inside of the projector personally. Doing is so 
dangerous. 
►Avoid wetting the projector or inserting liquids in the projector. It could result in 
a fire, an electric shock, and/or malfunction to the projector. 
• Do not put anything containing water, cleaners or chemicals near the projector. 
• Do not use aerosols or sprays. WARNING
►Please take right care of the projector according to the 
following. Incorrect care could cause not only an injury but adverse influence 
such as discoloration, peeling paint, etc. 
►Do not use cleaners or chemicals other than those specified in this manual. 
►Do not polish or wipe with hard objects. CAUTION
Inside of the projector
Caring for the lens
1.Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
2.After making sure that the projector is cool adequately, lightly wipe with gauze 
or a soft cloth. 
If the projector is extremely dirty, dip soft cloth in water or a neutral cleaner 
diluted in water, and wipe lightly after wringing well. Then, wipe lightly with a 
soft, dry cloth.
Incorrect care could have adverse influence such as discoloration, peeling paint, 
etc. Caring for the cabinet and remote control 
						

							58
Troubleshooting
Troubleshooting
If an abnormal operation should occur, stop using the projector immediately.
Otherwise if a problem occurs with the projector, the following checks and measures are 
recommended before requesting repair. 
If this does not resolve the problem, please contact your dealer or service company. They 
will tell you what warranty condition is applied.
►Never use the projector if abnormal operations such as smoke, 
strange odor, excessive sound, damaged casing or elements or cables, penetration 
of liquids or foreign matter, etc. should occur. In such cases, immediately disconnect 
the power plug from the power outlet. After making sure that the smoke or odor has 
stopped, contact to your dealer or service company.WARNING
Related messages
When some message appears, check and cope with it according to the following table. 
Although these messages will be automatically disappeared around several minutes, it will 
be reappeared every time the power is turned on.
Message Description
There is no input signal. 
Please confirm the signal input connection, and the status 
of the signal source.
The horizontal or vertical frequency of the input signal 
is not within the specified range.
Please confirm the specs for your projector or the signal 
source specs.
An improper signal is input. 
Please confirm the specs for your projector or the signal 
source specs.
The internal temperature is rising. 
Please turn the power off, and allow the projector to cool 
down at least 20 minutes. After having confirmed the 
following items, please turn the power ON again. 
 • Is there blockage of the air passage aperture? 
 • Is the air filter dirty? 
 • Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, please set 
FAN SPEED of the SERVICE item in the OPTION menu to HIGH.
A note of precaution when cleaning the air filter. 
Please immediately turn the power off, and clean or change 
the air filter referring to the “Cleaning and replacing the 
air filter” section of this manual. After you have cleaned or 
changed the air filter, please be sure to reset the filter timer 
(
43). 
						

							59
Troubleshooting
Regarding the indicator lamps
When operation of the LAMP, TEMP and POWER indicators differs from usual, 
check and cope with it according to the following table.
POWER 
indicator LAMP 
indicator TEMP 
indicator Description
Lighting
In Orange Turned
off Turned
off
The projector is in a standby state.Please refer to the section “Power on/off”.
Blinking
In Green Turned
off Turned
off
The projector is warming up.Please wait.
Lighting
In Green Turned
off Turned
off
The projector is in an on state.Ordinary operations may be performed.
Blinking
In Orange Turned
off Turned
off
The projector is cooling down.Please wait.
Blinking In Red (discre-
tionary)(discre-
tionary)
The projector is cooling down. A certain error 
has been detected.
Please wait until 
POWER indicator finishes blinking, 
and then perform the proper measure using the item 
descriptions below.
Blinking In Red or
Lighting In Red Lighting
In Red Turned
off
The lamp does not light, and there is a possibility 
that interior portion has become heated.
Please turn the power off, and allow the projector to 
cool down at least 20 minutes. After the projector has 
sufficiently cooled down, please make confirmation of 
the following items, and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, 
please change the lamp referring to the section 
“Replacing the lamp”.
Blinking In Red or
Lighting In Red Blinking
In Red Turned
off
The lamp cover has not been properly fixed. Please turn the power off, and allow the projector to 
cool down at least 45 minutes. After the projector has 
sufficiently cooled down, please make confirmation of 
the attachment state of the lamp cover. After performing 
any needed maintenance, turn the power on again. 
If the same indication is displayed after the remedy, 
please contact your dealer or service company.
BlinkingIn Red or
Lighting In Red Turned
off Blinking
In Red
The cooling fan is not operating.Please turn the power off, and allow the projector to 
cool down at least 20 minutes. After the projector has 
sufficiently cooled down, please make confirmation 
that no foreign matter has become caught in the fan, 
etc., and then turn the power on again.
If the same indication is displayed after the remedy, 
please contact your dealer or service company.
(Continued on next page) 
						

							60
Troubleshooting
Regarding the indicator lamps (continued)
• When the interior portion has become overheated, for safety 
purposes, the projector is automatically shut down, and the indicator lamps 
may also be turned off. In such a case, disconnect the power cord, and wait at 
least 45 minutes. After the projector has sufficiently cooled down, please make 
confirmation of the attachment state of the lamp and lamp cover, and then turn 
the power on again. NOTE
POWER 
indicator LAMP 
indicator TEMP 
indicator Description
Blinking In Red or
Lighting In Red Turned
off Lighting
In Red
There is a possibility that the interior portion 
has become heated.
Please turn the power off, and allow the projector to cool down at least 
20 minutes. After the projector has sufficiently cooled down, please make 
confirmation of the following items, and then turn the power on again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the remedy, please set FAN 
SPEED of SERVICE item in OPTION menu to HIGH 
( 45).
Lighting
In Green Simultaneous
blinking in  Red
It is time to clean the air filter.Please immediately turn the power off, and clean or 
change the air filter referring to the section “Cleaning 
and replacing the air filter”. After cleaning or changing 
the air filter, please be sure to reset the filter timer. 
After the remedy, reset the power to ON.
Lighting
In Green Alternative
blinking in  Red
There is a possibility that the interior portion 
has become overcooled.
Please use the unit within the usage temperature 
parameters (5°C to 35°C).  
After the treatment, reset the power to ON.
Shutting the projector down
Only when the projector can not be turned off by usual 
procedure (
14), please push the shutdown switch using 
a pin or similar, and disconnect the power plug from the 
power outlet. Before turning it on again, wait at least 10 
minutes to make the projector cool down enough.
Resetting all settings
When it is hard to correct some wrong settings, the FACTORY RESET function of 
SERVICE item in OPTION menu (
 46) can reset all settings(except LANGUAGE, 
FILTER TIME, LAMP TIME, FILTER MESSAGE and SECURITY settings and etc.) 
to the factory default.
Shutdown switch