What is a barcode reader (POS scanner, barcode scanner, price scanner)?

A barcode reader, also called a price scanner or point-of-sale (PoS) scanner, is a hand-held or stationary input device used to capture and read information contained in a barcode.

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A barcode reader comprises a scanner, a decoder (either built-in or external), and a cable used to connect the reader with the computer or POS system.

How do barcode readers work?

Because a barcode reader merely captures and translates the barcode into numbers and/or letters, the data must be sent to a computer so a software application can translate the data into information.

Barcode readers capture and translate barcodes into numbers and/or letters for translation by computer.

Barcode scanners can be connected to a computer through a serial port, keyboard port or interface device called a wedge. A barcode reader works by directing a beam of light across the barcode and measuring the amount and pattern of the light that is reflected.

The scanner converts the light energy into electrical energy, which is then converted into data by the decoder and forwarded to a computer.

What are the advantages of barcode readers?

Barcode readers offer several advantages in retail environments:

• reduced pricing errors
• increased accuracy and efficiency
• improved customer service
• reduced inventory levels

What are some common use cases for barcode readers?

The most common barcode reader use cases include retail POS systems, inventory management and asset performance management (APM).

Inventory management systems use barcode scanners in supply chain applications to track products.

In retail POS systems, barcode scanners are used to capture product information so that it can be added to the customer's purchase total.

Inventory management systems use barcode scanners in supply chain applications to track products from the time they are received into the warehouse until they are shipped out.

All these retail applications help businesses keep accurate records of their inventory levels and ensure products are available when customers need them.

How many types of barcode readers are there?

There are two types of barcode readers: handheld and fixed position.

• Handheld barcode readers are used in a wide variety of settings, including retail stores, warehouses and office buildings.
• Fixed-position barcode readers are generally used in manufacturing and logistics applications to track inventory or products as they move through the production process.

Barcode readers come in many forms depending on their use case:

• Pen wand barcode readers contain no moving parts and are known for their durability and low cost. They are typically used to scan barcodes that are printed on paper labels -- for example, in libraries, package delivery and office settings.
• Slot scanners remain stationary, and the item bearing the bar code is pulled through the slot manually. Slot scanners are typically used to scan bar codes on identification cards -- for example, for time and attendance tracking or physical access control.
• CCD scanners have a better read range than pen wands and are often used in retail sales via a "gun" type interface that is held only one inch from the bar code. Each time the bar code is scanned, several readings are taken to reduce the possibility of errors.
• Image scanners use a small video camera to capture an image of the bar code and then use sophisticated digital image processing techniques to decode the information in the barcode. An image scanner can read a bar code from about 3 to 9 inches away and typically costs less than a laser scanner.
• Laser scanners, either hand-held or stationary, use a system of mirrors and lenses to allow the scanner to read the barcode regardless of orientation and can easily read a bar code up to 24 inches away.
• 3D scanners create a three-dimensional image of the bar code, which allows it to be read from any angle. 3D barcode scanners are typically used in industrial settings, such as automotive assembly or aerospace manufacturing. Barcode readers are a critical part of many businesses, and their barcode scanning needs vary depending on the industry and application.
• CGI scanners are used to read barcodes that are printed on curved surfaces, such as cans or pipes. CGI scanners are typically used in the food and beverage industry.

Are there any disadvantages to using barcode readers?

There are a few disadvantages to barcode readers:

• The possibility of misreads, which can lead to data errors;
• The need for a clear line of sight between the barcode and the scanner; and
• The need for barcodes to be printed on labels or tags.

How can I ensure accurate barcode reads?

There are several ways to ensure accurate barcode reads:

• Keep barcodes clean and free of smudges or dirt.
• Make sure barcodes are printed clearly and at the proper resolution.
• Ensure barcodes are the correct size for the scanner being used.
• Use high-quality barcode labels or tags.

Barcode readers are a versatile and essential tool for businesses of all types and sizes.

With their many advantages, including increased accuracy and efficiency, barcode readers can help businesses improve their bottom line.

While there are a few disadvantages to using barcode readers, they can be minimized with proper barcode labelling and tag quality. When used correctly, barcode readers provide an invaluable service to businesses and organizations that need to manage and track inventory and retail goods.

If you want to learn more, please visit our website Handheld Barcode Reader.

See also: Bar Coded Medication Administration, quiet zone, 2D barcode, QR code, RFID

Wasp Barcode Technologies: The Barcode Solution People

Barcode Scanners: How Do They Work?

As consumers, we see barcodes and barcode scanners used all the time: purchasing from any retail store, renting a car, attending major events, flying, and even going to the doctor. These black lines are in our social media apps and on grocery store windows. Barcodes are more than parallel lines and spaces on individual products:

THE BARCODE

As consumers, we see barcodes and barcode scanners used all the time: purchasing from any retail store, renting a car, attending major events, flying, and even going to the doctor. These black lines are in our social media apps and on grocery store windows. Barcodes are more than parallel lines and spaces on individual products: Barcode scanning systems help businesses track a wide range of information which, in turn, increases productivity and efficiency. You will improve your business&#; processes by understanding how barcodes work and by knowing how to use them effectively in partnership with a quality barcode scanner.

A barcode is used to encode information in a visual pattern readable by a machine. Barcode labels are used for a variety of reasons including tracking retail products, prices, and stock levels at retail stores for centralized recording in a computer software system. First invented by Norman Joseph Woodland and Bernard Silver in , the bars in the bar code were inspired by Morse code. By June of , the first barcode appeared on a pack of Wrigley Company chewing gum. Today, barcodes can be found on almost every item for purchase within a store as well as on inventory waiting to be shipped out. Businesses as massive as Wal-Mart and Amazon use barcode and scanners for inventory management; so do small-town and home businesses that need to keep track of where they&#;re sending their e-commerce orders. That&#;s not even mentioning the government or medical applications, such as inventory levels at blood banks or shipping information at post offices. 

["In June of , the first barcode appeared on a pack of Wrigley Company chewing gum."] 

There are two types of barcodes &#; linear and 2D. The most visually recognizable, the UPC (Universal Product Code), is a linear type of barcode made up of two parts: the barcode and the 12-digit UPC number. The first six numbers of this common type of barcode is the manufacturer&#;s identification number. The next five digits represent the item&#;s number. The last number is called a check digit which enables the scanner to determine if the barcode was scanned correctly or not. 

A linear barcode is one of the more traditional barcodes because it typically holds any type of text information. In contrast, a 2D barcode is more complex barcode type and can include more information in the code: price, quantity, web address or image. A linear barcode scanner can&#;t read a 2D barcode; requiring the use of an image scanner for reading the information embedded in a 2D barcode. Popular QR codes are a 2D barcode that can store a large amount of information compared to a 1D barcode. Check out Wasp&#;s &#;What is a Barcode, Anyway?&#; video to learn the basics of barcodes in under a minute.

THE BARCODE SCANNER

A barcode scanner usually consists of three different parts including the illumination system, the sensor, and the decoder. In general, a barcode scanner &#;scans&#; the black and white elements of a barcode by illuminating the code with a red laser light, which is then converted into matching text. More specifically, the sensor in the barcode scanner detects the reflected light from the illumination system (the red light) and generates an analog signal that is sent to the decoder. The decoder interprets that signal, validates the barcode using the check digit, and converts it into text. This converted text is delivered by the scanner to a computer software system holding a database of the maker, cost, and quantity of all products sold. 

This video is a quick lesson in barcode scanners and highlights the basic differences between a Contact Scanner, Laser Scanner, and an Imager. Because retail barcode scanners are variable and include diverse capabilities, some are better suited for certain industries due to reading distance and to work volume capacity. 

Outlined below are a few types of barcode scanners with a little insight into how each works. 

Pen-type Reader: consists of a light source and a photodiode on the tip of the pen. 

Laser Scanner: works similarly to a Pen-type Reader but uses a laser beam.

 Camera-based Reader: installed with camera and image file processing techniques in the reading of barcodes. 

CCD Reader: has several light sensors to scan barcodes. 

Omni-Directional Barcode Scanner: highly advanced and very efficient in decoding badly printed, crumpled, and even torn barcodes on products. 

For more information about barcode scanners and how they read barcodes, check out our &#;How Barcode Scanners Work&#; infographic. Increasingly, companies are having employees use their mobile phones equipped with barcode scanning apps as makeshift barcode readers&#;and while that method can work great in some settings, many companies require rugged, reliable, dedicated barcode scanners and mobile computers to get the job done. 

HOW SCANNERS MAKE LIFE EASIER

There are lots of companies that use barcodes and scanners on a daily basis, but few where using one could be a matter of life or death. All About Kids Pediatrics in Orlando, FL sees up to 100 kids a day, providing healthcare and measures such as vaccinations. Barcodes are now required or mandated by federal agencies when it comes to administering medication, but the government hardly oversees the quality of the barcodes or scanners used&#;meaning the door is open to errors, due to poor contrast, modulation, and other factors.

According to their Wasp Barcode case study, &#;The use of barcode technology in medication administration has reduced All About Kids&#; medication administration documentation time by 50%.&#; How? Simple: They no longer needed to spend precious minutes&#;adding up to hours&#; capturing and recording medication administration data and electronically compiling reports for submission and compliance. A quick scan does everything that filling out a report used to. Barcode scanners are found in many quality inventory management and asset management systems across the country, from TopGolf&#;s warehouses to the basement of the University of Phoenix Stadium. But rarely is their reliability to crucially tested than in the offices of All About Kids&#;and they pass that test daily.

WASP BARCODE SCANNERS

Wasp scanners are built withstand tough industrial environments and delicate healthcare environments. They are designed to provide customers with high-quality machines that easily read barcodes at an increased speed, letting you focus on other &#; more important &#; responsibilities. Does your company need to improve its efficiency and productivity? Understanding how barcodes and barcode scanners work and where they fit into a barcode-based system will help you determine if it&#;s appropriate to implement in your small business. Visit the Wasp website for more information about barcodes, barcode scanners, and barcode printers.

Are you interested in learning more about Wireless Handheld Barcode Scanner? Contact us today to secure an expert consultation!