Hand-held barcode scanner. Handheld barcode scanners are the product of the technology that was introduced in 1987, like the barcode scanner used by the cashier in the supermarket. The majority of the holding type Barcode scanners adopt CIS technology, the optical resolution is 200dpi, there are black and white, gray, color and many types, in which color type is generally 18-bit color. There are also individual high-end products using CCD as a photosensitive device, can achieve bit true color, scanning effect is good.Barcode Scanner
Second, small drum-type barcode scanner. This is the middle product of handheld barcode scanners and Platform barcode scanners (a new appearance in recent years, because it is a built-in power and small volume is called a notebook barcode scanners, most of this product uses CIS technology, optical resolution of 300dpi, there are two color and gray, color model is generally 24-bit color. There are also a few small drum-type bar code scanners using CCD technology, scanning effect is significantly better than the CIS technology products, but due to structural constraints, the volume is generally significantly greater than the CIS technology products. The small drum is designed to be a barcode scanner lens fixed, and moving to scan the object through the lens to scan, operating as the printer, the object to be scanned must pass through the machine and then sent out, so that the scanned object can not be too thick. The biggest advantage of this barcode scanner is that it is small, but because there are many limitations to use, such as scanning only thin paper, the range can not exceed the size of the barcode scanner.
Third, platform-type barcode scanner. Also known as flat-panel barcode scanners, desktop barcode scanners, most of the current market in the barcode scanners are flat-panel barcode scanners, is now the mainstream. This type of bar code scanner optical resolution between 300dpi-8000dpi, color digits from 24 to 48 bits, scanning format is generally A4 or A3. The advantage of the tablet is that, like the use of photocopiers, as long as the barcode scanner to open the lid, whether it is a book, newspapers, magazines, photographic film can be placed on the scan, very convenient, and the effect of scanning is also the best of all the common type of bar code scanners.Barcode Scanner
Other large-face scanning with large-area barcode scanners, pen bar code scanners, barcode scanners, film barcode scanners (note that not a flat-panel barcode scanner plus sweeping, the effect is much better, the price of course also expensive), the physical barcode scanner (not have the physical scanning ability of the flat-panel barcode scanners, a bit similar to the digital camera), there are mainly used in the field of industry printing and typesetting of drum-type barcode scanners and many other.Barcode Scanner