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Why does the projector not respond to any command when powering on or turning off?
When inputting my RS232 commands, why do I get "Illegal Format" in return?
How many pens do PointWrite support simultaneously?
Can I leave my projector turned on 24/7?
Can PointWrite be applied on 3 sets of projector side by side to create one larger screen?
How to clean the lens?
Is it ok to use external power supply for PointWrite? If yes, what is the spec. of the power adaptor?
May I use QPresenter in my mobile phone?
Please don't place the projector in any of the following environments.
The lamp is not on but the fan remains running, what is happening?
Why is there slight scent of burning or plastic smell when using projectors？
Why I cannot use PointDraw on my ChromeBook?
What is LAN Web Control?
Projection is rather blurry, what can I do?
PointWrite auto calibration is failed, how to fix this problem?
The eco mode is much darker than SmartEco mode. Is it normal?
Why can PointWrite not be activated after installation?
Why does PointWrite disconnect intermittently with 5 meter USB cable?
Why does the cursor look to be shaking or vibrating when projecting to a white board?
Why the keystone value can not be saved after turning off the projector?