[FAQ] NETUM/NetumScan Document Camera - Frequently Asked Questions

Question 1: The document scanner is not receiving power.

Solution 1:
The device operates with a direct USB connection and does not require an additional power cord.

Question 2: The software opens but doesn’t display the scanner's camera.

Solution 2:
You can switch to the scanner’s camera within the software’s camera switching menu. Alternatively, in the Device Manager, go to the imaging devices section and disable the computer’s built-in camera. The device name will usually appear as "NetumScan Camera 2.0" or "USB Camera 2.0." For any updates, refer to Device Manager.

Question 3: The software opens, but no camera is detected.

Solution 3:

1. Verify the USB cable connection and ensure the USB port is functioning correctly. If needed, try a different USB port. Check Device Manager for the status of the imaging device if the issue persists.

2. Ensure the antivirus program did not block the software during installation. Exit the antivirus and reinstall if necessary. (The software offers a custom installation path, defaulting to the C drive. Selecting an alternative drive may prevent issues due to limited space on the C drive).

3. For non-genuine systems or plugin errors, the latest software version may not be compatible. Try using an older version. If prompted about the NET 4.6.0 plugin, uninstall it in settings and reinstall as needed. If the issue continues, consider testing on a different computer.

4. On Windows 10 or later, verify that camera permissions are enabled in settings. Enable permissions, restart the software, and test again.

Question 4: The software opens, the device list appears normal, but the preview screen is blank.

Solution 4:

1. Unplug and reconnect the USB cable, preferably to a USB port on the back of the computer.

2. If security software like 360 Antivirus is installed, enable camera permissions within the antivirus settings or temporarily exit the security software.

3. Use the DirectX Repair Tool to check and repair your computer’s DirectX environment. DirectX Repair Tool link.
   (Possible causes include insufficient USB power supply from the computer or antivirus interference.)

Question 5: The software stops running unexpectedly.

Solution 5:
Common causes:

1. Insufficient storage space for the software.
2. Antivirus software was not exited before installation, leading to blocked components.
3. Faulty NET plugin—uninstall and reinstall the plugin.
4. Incompatible USB port—try using a different port.

Question 6: The software experiences delays.

Solution 6:
Delays may occur if the computer’s specifications are too low. Upgrading the system can help reduce delays.

Question 7: Photos appear dark or colors are inaccurate.

Solution 7:
Some color variation is normal with document cameras, which may not reproduce colors perfectly. Try shooting in a well-lit area, or use the fill light feature. You can also adjust brightness, contrast, saturation, and sharpness in the settings menu if lighting is too bright or dim.
Adjust exposure by following the steps shown in the image below.

Question 8: OCR recognition shows garbled text.

Solution 8:
The current OCR feature works best with clear and standard plain text and achieves about 85% accuracy. Complex patterns or symbols may reduce accuracy.

Question 9: How to select an automatic storage folder.

Solution 9:
In the new software version, select the save path from the settings in the upper right corner. For older versions, go to Parameter Settings. After modifying, restart the software.