Compressed air Vs vacuum cleaner for filters?

Interactive whiteboards are mainly used to improve quality of the education in classrooms. The use of interactive whiteboard allows instructor to alter the different information present in the board which can even be copied and transferred to the next slide. The data that is present in the board can be clicked on, moved, copied and analyzed. The interactive whiteboard also allows the teacher to write like the any other whiteboard but it also turns the handwritten notes into texts which can be later referred to at any moment of urgency.

Please read the following tutorial to know some features of interactive whiteboards.
https://www.eztalks.com/whiteboard/features-of-interactive-whiteboard.html

If you'd like to email me at [email protected] I'll be able to help you in more detail. There's a fundamental error to the question here. That is the board in itself will not show the image - your boards is effectively a large flat mouse. A pointing device infact. The peice of equipment that "shows" your PC image is actually the projector. There could be several reasons why your projector isn't showing the image.
1 - is there either a VGA or HDMI cable connected from your laptop/PC to the projector (Sometimes via a wall plate).
2 If 1 is true and the projector is turned on does it show any sort of image? Now there are two thongs you can do from here. a) If you have a laptop check to see if your Video settings are set to clone across to a secondary monitor on most laptops you should hold down Function key and F8 this will toggle through three options Onboard screen remote screen and then both. there could be some lag between the two so hold down fucntio at the same time press F8 then wait a few seconds then go again.
Finally on you projector remote there may be an auto search buttion which will hunt for your PC image by checking each of the Projector inputs in turn. Generally speaking however you should select "Computer 1" or sometimes named as RGB 1

Hope that helps email me if your still having problems.

Yes you have dust particles inside the light chamber.
Remove the filters and clean them gently with a vacuum cleaner.
Used a compressed air can to blast air into machine and have vacuum (on Low) **** up dust.
You may have to take out bulb to do this (dont touch the glass on the bulb)

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Please dont forget to vote this answer was helpful

Many thanks

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WARNING ?Before caring, make sure the power switch is off and the
power cable is not plugged in, 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.
?Use only the air filter of the specified type. Do not use the projector with the
air filter and filter cover removed.
?Avoid wetting the projector or inserting liquids in the projector. It could result
in a fire, an electric shock, and and/or malfunction to the projector.
CAUTION ?Please replace the air filter when it is damaged or too soiled,
and also when you replace the lamp.When the indicators or a message prompts you to clean the air filter, clean the air filter as soon as possible. If the air filter becomes clogged by dust or the like, internal temperatures rise and the power may be automatically turned off for malfunction prevention.
1. Turn the projector off, and unplug the power cord. Allow the projector to cool for at least 45 minutes and prepare a vacuum cleaner.
2. After making sure that the projector is cool adequately, slowly turn the projector so that the lens-side is facing up. Please be careful for a projector not to fall. While the projector is placed lens-side up, hold the projector.
3. Putting a finger on the filter cover's knob, slide the filter cover in the direction of the arrow to remove it.
4. Holding the air filter's knob, pull the air filter off.
5. Apply a vacuum cleaner to the vent of the projector for the air filter. And then slowly turn the projector bottom up.
6. Apply a vacuum cleaner to the air filter and filter cover.
Please replace the air filter when it is damaged or too soiled.
To prepare a new air filter, contact your dealer and tell the air filter type number = NJ09702.
An air filter of specified type will come even with the replacement lamp for this projector.
7. Position the cleaned air filter or a new air filter into place, and push the points
of "PUSH" word with claws to fix the air filter.
8. Replace the filter cover and snap it back into place.
9. Slowly turn the projector so that the top is facing up.
10. Turn the projector on, and reset the filter time using the FILTER TIME
function of OPTION menu (?37).
NOTE • Incorrectly resetting of the filter timer (resetting without replacement,
or neglect of resetting after replacement) will result in incorrect message
functions.

I should say it has a heating problem. In the uppermost part of rooms, the temperature can get very high.
Check the air vent filters are clean and replace them as required. Make sure the air ways are clear by placing a vacuum cleaner pipe against the air inlets and exhaust outlets to clean them out. That should dislodge any fluff etc.
Hope this fixes your problem.

canned air from the outside is good, but a lot of the dust collects on surfaces and bakes on. for best results, remove the top cover and blothe dust out of every nook and cranny, wipe it off of the fan blades, and make sure all of the fans spin well. you may need to replace the temp sensors if it happens too frequently. also, during the winter when the heat is on full blast, it tends to get very hot on the ceilings. is there enough air flow in the room? lastly, make sure they turn them off at the end of the school day. this will lenghten the life of the power supply and the lamp.

you also need to clean out the machine with canned air. also check to see that all of the fans are running. if they are not all running, they need to be replaced. also, the temp sensor near the lamp housing may also need replacing.

There should be a menu option for orientation. The selection may be for ceiling vs standard. You have the unit set for ceiling mount.

Dan

Hi there...FIRST remove the dust filter and clean it with some compressed air, or you can leave it in place and use a vacuum cleaner hose to suction off the dust. Some projectors have a sensor that gets reset when the filter is removed. A lot don't. Check the onscreen menu for a reset option for the dust filter. This option may be only accessible with the remote control...DON'T reset the lamp hours! The most important thing with LCD projectors or any other projector, for that matter, is to keep the dust filters clean--think of someone putting their hand over your nose and mouth. The projectors emit a *huge* amount of heat and need plenty of air flow to remain cool. Also, the benefit of cool air keeps the delicate LCD panels from aging prematurely!---Rick

The filters are starting to show their age. This is a normal occurance for projectors and is the result of heat. The filters and/or the mirrors might need to be changed.
Dan