Why Do The Omni Directional Desktop Barcode Scanners Cannot Read Barcodes Correctly?

Barcode scanner is a device used to read the information contained in the barcode. It can be divided into barcode scanner gun, omnidirectional desktop barcode scanner, handheld wireless barcode scanner, etc. There is also a 1D and 2D barcode scanner.The structure of a barcode reader usually consists of the following parts: light source, receiving device, photoelectric conversion component, decoding circuit, and computer interface. The basic working principle of the bar code scanner is: the light emitted by the light source is irradiated onto the bar code symbol through the optical system. The reflected light is imaged on the photoelectric converter through the optical system, and interpreted as a digital signal that the computer can directly accept by the decoder.

Why can't the omni directional desktop barcode reader read barcodes? How to troubleshoot the cause and failure?

First, the desktop barcode scanner does not enable the function of reading such barcodes. You can scan the barcode category that needs to be opened through the setup manual and scan again.

Second, the light-sensitive device enters the saturation zone under direct sunlight and light. Adjust the brightness and darkness of the environment to scan the code for confirmation.

Third, the desktop barcode scanner is not properly connected to the computer, etc. Scan other simple barcodes for testing. If it can be output correctly, there are other reasons; if it is not output correctly, it may be that the desktop barcode scanner is not properly connected to the computer and other equipment. Plug and unplug the data cable to test again.

Fourth, the barcode does not meet the specifications, such as lack of necessary blank areas, low contrast between bars and spaces, and non-standard ratios of width to narrowness. The barcode consistent with the barcode can be made through the barcode software and scanned for confirmation.

Fifth, the bar code density exceeds the scannable density of desktop bar codes. If the barcode density is less than the scanning capability of the scanner, unrecognizable barcodes may appear.

Sixth, if the desktop bar code scanner is the serial port interface, the serial port number and baud rate have not been set properly. Scan and confirm again by setting the serial port and baud rate.

Seventh, there is a problem with the desktop barcode hardware, and you need to contact the technology for confirmation.

The above are the main reasons why the desktop barcode scanners cannot scan. Follow the steps above to check the desktop barcode scanner one by one, and eliminate them one by one until the problem is found. If the problem still cannot be solved, you may need to contact your supplier to solve it.