When scanning some relatively small two-dimensional codes, the ability to affect the two-dimensional code scanner generally has the following two points: one is the scanning capability of the two-dimensional code scanner, and then the method of using the two-dimensional scanning gun, if If the method of use is not suitable, no matter how good the barcode scanner is, the QR code cannot be scanned smoothly. The following small series summarizes the following points to solve, I hope to help everyone! The following scanning case is carried out using the U-Bag barcode scanner. If you have any questions, please feel free to contact our online customer service!
Parameter reference: excellent light two-dimensional barcode scanner
1. When scanning for the first time, press and hold the scan button (don't let go so quickly, keep holding it), aim the red point of the aiming red light from the scanner to the QR code.
2. The two-dimensional code plane and the scanner window plane are kept parallel, and the distance between the two is kept in the range of 2CM to 6CM, and the optimal distance is about 4CM.
3. If you can't read it for more than 5 seconds, just press and hold the scan button again. It is easy to identify the QR code and scan it several times to master the method.
How to distinguish between 2D barcode scanner and 1D barcode scanner?
How to distinguish between 2D barcode scanner and 1D barcode scanner? In fact, it is not difficult to understand, we only need to choose one-dimensional or two-dimensional scanner according to our own needs. There may still be many customers who don't understand, we can easily understand from the following aspects.
First, we need a simple understanding of barcodes. From the bar code type, the earliest bar code is a one-dimensional bar code. As shown in the following figure, the one-dimensional bar code is composed of vertical black bars and white bars. The black and white and the stripes are also different in thickness. Usually, there are English letters or stripes under the stripes. Arabic numerals, one-dimensional bar codes can identify basic information of goods, such as product names, prices, etc., but can not provide more detailed information of goods, to call more information, need further cooperation with the computer database. Therefore, the one-dimensional barcode scanner at this time can only scan one-dimensional barcodes.
With the development of social economy and the advancement of the information age, one-dimensional bar codes can no longer meet people's needs, so two-dimensional bar codes appear, as shown in the following figure, which is usually a square structure, not only composed of horizontal and vertical bar codes, but also There will also be a polygon pattern in the code area. Similarly, the texture of the two-dimensional code is also black and white, and the thickness is different, and it is in the form of a dot matrix. What is the function of 2D barcodes? Compared with 1D barcodes, QR codes not only have different recognition functions, but also display more detailed product contents. For example, clothes can not only display the name and price of the clothes, but also what materials are used, the percentage of each material, the size of the clothes, the size of the person, and some washing precautions, without the need for a computer database. ,easy and convenient. In order to adapt to the new requirements, a two-dimensional barcode scanner was developed on the basis of a one-dimensional scanner, so the two-dimensional barcode scanner can scan both the one-dimensional barcode and the two-dimensional barcode.
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