Two-dimensional barcode scanners are widely used in various industries for efficient data capture. These devices can read both one-dimensional and two-dimensional barcodes, making them versatile tools in retail, logistics, healthcare, and more. The 2D barcode scanner category can be divided into several types based on their technology and functionality.
First, there are Linear CCD and Linear Imager scanners. These devices are capable of reading one-dimensional barcodes as well as linear stacked two-dimensional codes like PDF417. However, when scanning QR codes, they require a sweeping motion across the entire barcode vertically. This method is straightforward but may take longer compared to other technologies. These scanners are generally more affordable, making them a popular choice for basic applications.
Second, Laser readers with grating technology are another type. They can also read one-dimensional and linear stacked 2D codes. Unlike the linear imager, these scanners use a laser beam that is directed at the barcode, and the grating element performs vertical scanning automatically, without the need for manual movement. This makes the process faster and more convenient in some scenarios.
Third, Image Readers are more advanced and use area array CCD cameras to capture the entire barcode image. This allows them to decode both one-dimensional and all types of two-dimensional barcodes, including QR codes, DataMatrix, and more. Their ability to capture the full image makes them highly accurate and suitable for complex or damaged barcodes.
In addition to the technical differences, 2D barcode scanners can also be categorized based on their working mode: handheld, fixed, or flat scan. Handheld models are portable and ideal for mobile use, while fixed scanners are commonly used in automated systems. Flat scan models are designed for specific applications where the barcode is placed on a flat surface.
Although each type has its own advantages and limitations, most 2D barcode scanners are capable of reading one-dimensional barcodes as well. This dual capability ensures that they remain useful even in environments where older systems are still in place. As technology continues to evolve, 2D scanners are becoming more powerful, accurate, and user-friendly, further expanding their range of applications.
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