Blip! Blip! Blip! You always hear this sound at the time of checkout at the supermarket. It’s the sound of the scanning of the barcodes of products you have purchased. Do you know what type of machine it is? It’s a barcode scanner that is used to keep records of all the barcodes.

Can you imagine how complicated billing would be if barcode scanners were not there?

Thanks to technology, now shopping has become easier and quicker.

If you are curious to know how to use a barcode scanner in supermarket, this guide is for you.

What is a Barcode Scanner?

A barcode encodes information in the form of a visual pattern that only a barcode scanner can read. It’s an optical device that reads the series of lines and numbers on your product.

You will see a combination of black and white zebra stripes at the back of the product, with twelve digits written below the lines. The first six digits denote the manufacturer identification numbers, and the next five digits refer to the product’s item number. The last number is the Check Digit. It enables the scanner to check if the code was correctly scanned.

How does a Barcode Scanner Works?

The black and white pattern on a product represents varying text characters and a pre-established algorithm for that barcode. A barcode scanner reads and translates them.

There are three different components of a barcode scanner. These include:

  1. Sensor
  2. Decoder
  3. Illumination system

The scanner scans the barcode’s black and white zebra stripes by illuminating the code with red light. It is further decoded into matching text. The barcode scanner functions by detecting the reflected light from its illuminating system. It is designed to generate analogue signals that are sent to the decoder. The function of the decoder is to interpret that signal, validate the barcode using digits, and convert it into text.

If you look closely behind the protective window, you will see optics inside the barcode scanner. The mirror you see behind the glass is a high-precision ultra-flat mirror, also known as a “front surface mirror.” Its high precision helps the scanner to read the barcode accurately and quickly from all angles.

The role of the imager is to take the barcode’s picture. Then, the picture is decoded, and the data is forwarded as a string to a host system for further processing. Thus, the imager needs to see the “entire code” to read the barcode.

How to use barcode scanner in supermarket

There are different types of barcode scanners available in the market, but they all have the same functionality: to read the barcodes.

Here’s how you can use barcode scanners in a supermarket.

  • In some supermarkets, you will see a barcode scanner near a shelf. It helps you track your spending as you shop, so you don’t need to unload some items from your cart when you come to pay at checkout.
  • If you are using a hand scanner to check the price, simply keep the product’s barcode near the scanner and press the yellow button. You will get the cost of the product. The barcode scanner will also show if the item is on sale.
  • If you are using a desktop barcode scanner at the checkout. Simply bring each product near the scanner and show the barcode. Then, wait for the beep sound to let the scanner scan the code and add its price to the point-of-sale system.
  • If you’re buying loose items that don’t have a barcode on them, you’ll need to check the weight of the products on a weight scale machine. That machine will give you the label that has a barcode. Put the label on the product. This label will help the cashier scan the barcode and keep the record in the point-of-sale system for payment.

Desktop Barcode Scanner is easy to operate. Just Plug n play. These scanners are compatible with every point-of-sale system and read barcodes and QR codes at a high recognition rate.

Barcode Scanners Make Life Easier

Many supermarkets use barcode scanners at the counter or near product shelves to simplify the process of checkout. So, if you run a supermarket and want to improve its efficiency and productivity, use barcode scanners. Its quick scan can do everything!

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