Q: 'I have received the prompt' hardware device not found'
The reason for the product models TH-WB2000/SP20C/RPWB300/SP200B may be one of the following:
(1) Connection cable is not connected properly.
Inspect the connection cable to make sure it is connected properly.
(2) Some anti-virus softwares or programs may block the computer communication.
Make sure no such software or program is activated. If yes, close all such programs and restart the program.
(3) Defect on PC’s USB ports.
Check if the PC’s USB ports are functioning properly. If not,call a qualified engineer to repair them.
(4) No USB driver has been installed.
After the installation of the USB driver on the PC, a new usable port can be found in 'Control Panel – System – Device Manager – Port'. Otherwise, it is 'driver not installed' or 'not installed properly'. Alternatively, check 'Control Panel – System-Device Manager – USB Controller', if an unknown USB device found states that no driver has been installed or not installed properly,reinstall the USB drivers.
(5)PC’s operating system may recognize the signal receiver as another device and activates the relevant program when scanning hardware. This causes a serial port being occupied. Check if any unknown serial device has appeared in the Device Manager.  For example if an abnormal serial device appears in 'Control Panel - System – Device Manager – Mouse and other pointer device', just prohibit the use of that device and restart the program again.
(6)When the notebook PC’s power runs out, the USB port may stop functioning, causing the USB device not be detected or utilized properly. In this case, the notebook PC should be connected to a power point. The USB port on some notebook PCs may not supply the standard current,the resolution is to use the active cable we supplied.
The reason for the product models FR-FMWB-A Series/PJ100W(S) may be one of the following:
(1) Connection cable is not connected properly.
Inspect the connection cable to make sure it is connected properly.
(2) Defect on PC’s USB ports.
Check if the PC’s USB ports are functioning properly. If not,call a qualified engineer to repair them.
(3)When the notebook PC’s power runs out, the USB port may stop functioning, causing the USB device not be detected or utilized properly. In this case, the notebook PC should be connected to a power point. The USB port on some notebook PCs may not supply the standard current,the resolution is to use the active cable we supplied.
(4)Some anti-virus softwares or programs may block the computer communication.
Make sure no such software or program is activated. If yes, close all such programs and restart the program.

Q: No green dot has appeared on the PC screen after the positioning calibration?
A: (1)The PC screen is being refreshed continuously. Close all programs that involve screen refresh,e.g. flash animations, etc.
(2)The green dot will not appear when the signal receiver device is not detected by the PC. Check the device connection and restart the program.

Q: The green dots haven't turned black in the process of positioning calibration?
A: First check if the indication light on the signal receiver is flashing continuously, if yes, that means the signal receiver is disturbing by a light source. Try to eliminate the interferences. Alternatively, it may be due to improper location of the signal receiver or the receiver is positioned in the area that cant receive the signal,needs to be relocated.

Q: The green dot has turned black automatically?
A: This may be due to ambient lighting disturbance. Adjust the position of the signal receiver or remove the lighting source.

Q: The E-Pen does not appear to be responding when in operation?
A: (1)The signal path from the signal receiver may be blocked by the user. Avoid blocking the signal path when working on the projection screen.
(2)The E-Pen has run out of battery.
(3)Disturbance by strong ambient lighting.
(4)Cable loosing or dropping.

Q: The annotation lines appear jagged in real-time writing?
A: (1)The E-Pen is being used at a distance too far from the projection surface.
(2)The E-Pen is running out of battery.

Q: How can you judge if there is ambient lighting disturbance?
A: There is a red indication light on the top of the signal receiver. This indication light will be stable (bright or dark) when there is no optical signal communicated from the E-Pen. When the receiver detects optical signals, it will flash. If there is no optical signal being transmitted from the E-Pen and the indication light keeps flashing, that means there is ambient lighting disturbance.In the case of positioning calibration failure, cursor fluctuating or unpredictable lines appearing, check the indication light on the signal receiver first. One simple way to find out the cause is to cover the front panel of the signal receiver with your hand. The indication light should stop flashing. This indicates the device
is functioning properly. The signal reception failure is due to ambient disturbance. Otherwise, the device may be defective. Contact our technical support department or our resellers.

Attention: make sure no direct rays of lights on the the receiver.

Q: The E-Pen does not function after the PC enters standby or sleep mode?
A:When the PC enters standby or sleep mode, the signal communication between the PC and the signal receiver is terminated. Restart the program again to resume normal functionality.

Q: The position of the mouse cursor is not accurate?
A: This can be due to the following:
(1)Positioning calibration is not accurate.
(2) The position of the signal receiver has been changed.
(3)The screen display resolution has been changed.
Recalibration of the system or restart the software is required.

Q: The cursor jumps significantly?
A: If the cursor jumps up and down significantly,check whether there is strong light(generally refers to the sun)raying on the screen.

Q: The installation of software cant been finished?
A: (1)The reason may be the system protection(e.g. the registration table),nothing to do with the installation procedure itself.The resolution is to remove system protection.Some viruses can cause this problem ,the system needs anti virus. (2)Windows Installer is not installed properly or Windows Installer service is not activated.

Q: The e-pen doesn't light or sometimes lights or sometimes not?
A: (1)Need to replace the battery.
(2)Check whether the connection of the extendable pointer is close.