There may be many reasons why the barcode scanner cannot scan the barcode, including but not limited to the following situations:

Problems With The Barcode Itself

Such as deformation of the barcode, insufficient left and right blank areas, incomplete vertical bar printing, problems with the color matching of bars and spaces, low recognition levels, etc., all of which may cause the scanner to be unable to scan.

Barcode Scanning Equipment Problem

 For example, the scanned barcode system does not meet the requirements of the barcode scanner, the barcode scanner does not activate the barcode, the barcode scanner fails (such as data line damage, scan head failure, decoding circuit board failure, power failure, etc.) , Scanner setting error (such as not set to serial port mode, communication protocol error, etc.), etc.

External Factors

Such as external light source problems (direct sunlight, too strong light, etc.), the cursor is not in the scanning area during scanning, the input method is not closed during scanning, interface transfer problems, etc.

In addition, it is possible that the barcode printed content is too long, causing the scanner to be unable to scan it. To solve these problems, you can try to solve these problems by adjusting the settings of the scanner, checking the quality of the barcode, ensuring a suitable scanning environment, and checking the hardware status of the scanner.

Reasons Why Barcode Data Is Not Transmitted

Problems with the barcode itself: If the barcode has quality problems, such as unclear printing, damage, deformation, etc., the scanner may not be able to correctly identify and transmit data.

Barcode scanning equipment problems: If the hardware of the scanner fails, such as scan head failure, data line damage, etc., or the settings of the scanner are incorrect, such as communication protocol error, not set to serial port mode, etc., it may cause barcode data Unable to transfer.

Connection problems: If the connection between the scanner and the computer is unstable or faulty, such as a loose interface, poor contact, etc., it may also cause the barcode data to fail to be transmitted.

Communication problems: If the communication between the scanner and the computer is interfered with or the signal is unstable, it may also cause the barcode data to fail to be transmitted. At this time, you can try to replace the communication cable or restart the device to solve the problem.

Driver or application problems: If the computer does not correctly install the driver for the scanner, or the application used is incompatible with the scanner, it may also cause the barcode data to fail to be transmitted. At this point you need to make sure the correct drivers are installed and the application settings are correct.

For the above possible reasons, corresponding measures can be taken to solve the problem. For example, check the quality of barcodes, check the hardware status and settings of the scanner, check connection and communication stability, update drivers and applications, etc.

In addition, when the power supply of the scanner is insufficient or unstable, the machine may not work properly, resulting in the inability to correctly read and transmit barcode data.

This situation usually occurs in the following situations:

Power cord problems: If the scanner's power cord is damaged, aged, or poorly connected, it may cause insufficient power supply.

Power socket problem: If the power socket is damaged or the voltage is unstable, it may also cause insufficient power supply to the scanner.

Internal device failure: Failure of the power module or related circuits inside the scanner may also lead to insufficient power supply.

To resolve this issue, you can try the following steps:

Check the power cord: Make sure the scanner's power cord is well connected and not damaged or aged.

Change the power outlet: Try connecting the scanner to another power outlet to see if the problem is resolved.

Check inside the device: If possible, check the power module and related circuits inside the scanner to see if there are any obvious faults or damage.

If the problem persists, it is recommended to contact the manufacturer of the scanner or the technical support team for further assistance.

The transmission interfaces of XTIOT scanner mainly include the following:

USB interface: The USB interface is one of the commonly used interfaces of XTIOT scanners. It can be connected to the USB port of the computer to realize data transmission and communication. The USB interface has the advantages of fast transmission speed, good stability, and easy use, so it has been widely used in many code scanners.

Serial port interface: The serial port interface is also called the serial communication interface and is usually used for device communication in the industrial field. The XTIOT scanner also provides a serial port interface, which can be connected to a computer or other device through the serial port to realize data transmission and communication. The serial port interface has the characteristics of long transmission distance, stable and reliable communication, and does not depend on complex systems. It is suitable for some special application scenarios.