Everything you need to know about barcode scanners: A comprehensive guide
Wladimir Hofer
April 5, 2024
Everything you need to know about barcode scanners: A comprehensive guide
Barcode scanners are indispensable today in retail, logistics, or inventory management. They are powerful tools that help businesses increase their efficiency and optimize their workflows. However, despite their widespread use, many questions remain. How exactly do barcode scanners work? What different types of scanners are there? And how does one choose the right scanner for individual requirements?
In our comprehensive guide, you will find answers to all these questions and much more. We will provide you with a detailed insight into the world of barcode scanners and help you make the right choice. From the basics of barcode technology to the latest developments in the market, we will cover all the important aspects.
Whether you're a business owner looking to improve the efficiency of your company, or a consumer wanting to learn more about the technology behind the stripes on products - this guide will help you understand every single detail about barcode scanners.
Source: pexels.com
Introduction to Barcode Scanners
Barcode scanners are devices used to read information from barcodes. A barcode is an optical representation of data, printed in the form of bars and spaces. These bars and spaces correspond to a specific sequence of characters that represents a unique identification. The barcode scanner reads the barcode, translates the optical information into digital data, and transfers it to a connected device, such as a computer or a cash register.
Barcode scanners can operate with both wired and wireless connections. Wired scanners are connected via USB or RS-232 interfaces, while wireless scanners can communicate with other devices via Bluetooth or Wi-Fi. Most barcode scanners use laser technology to read the barcodes, but there are also other technologies such as CCD (Charge-Coupled Device) and imagers that can be used.
The use of barcode scanners offers numerous benefits, including improved efficiency, reduced error rates, and faster data capture. Barcode scanners are used in a variety of industries, including retail, logistics, warehousing, healthcare, and manufacturing. Choosing the right barcode scanner depends on various factors, such as the requirements of the application, the budget, and the specific features that are needed.
Types of Barcode Scanners
There are various types of barcode scanners suitable for different requirements. The most common types are handheld scanners, presentation scanners, and mobile scanners.
Handheld scanner ; Source: freepik.com
Handheld scanners are the most widespread type of barcode scanners. They are held by hand and can be taken anywhere. Handheld scanners are usually wired but can also be wireless. They offer flexibility and mobility for data capture.
Presentation scanner; Source: freepik.com
Presentation scanners are specifically designed for use at checkouts or counters. They are usually fixed in place and automatically scan barcodes when presented. Presentation scanners are ideal for use in stores and other environments where fast and accurate transactions are required.
Mobile Scanner; Source: freepik.com
Mobile scanners are portable devices that can be used in conjunction with smartphones or tablets. They are ideal for use on the go or in environments where high mobility is required. Mobile scanners connect wirelessly to the mobile device and allow for quick and easy data capture.
Source: freepik.com
How do barcode scanners work
Barcode scanners use various technologies to read barcodes. The most commonly used type is the laser scanner. This scanner operates with a laser beam that is directed at the barcode. The laser beam reflects off the bars and spaces of the barcode and creates a pattern. A sensor in the scanner reads this pattern and translates it into digital data.
There are also CCD scanners that use a row of light-sensitive cells instead of a laser to read the barcode. These scanners capture the reflected light from the bars and spaces and convert it into digital data. CCD scanners are generally more cost-effective than laser-driven scanners, but they have a limited range and accuracy.
Another technology used in barcode scanners is imaging. Imager scanners use a camera to capture an image of the barcode. These images are then analyzed by software and converted into digital data. Imager scanners can read 2D barcodes, which contain more information than traditional 1D barcodes.
Common applications of barcode scanners across various industries
Barcode scanners are widely used in many industries. In retail, for example, they are used to scan products and speed up the sales process. In logistics and warehousing, they enable efficient tracking of goods and minimize errors. Here are some of the most common applications of barcode scanners in various industries:
Retail: In retail, barcode scanners are used at checkout points to quickly and accurately capture products. This speeds up the checkout process and minimizes human errors.
Logistics: In the logistics industry, barcode scanners are used to track the location and status of goods. This allows for efficient warehouse management and accurate inventory control.
Healthcare: In healthcare, barcode scanners are commonly used to scan patient wristbands and medication packaging. This helps prevent medication errors and allows for accurate patient identification.
Production: Barcode scanners are used in production to identify products and monitor the manufacturing process. This allows for efficient quality control and accurate tracking of production performance.
The applications of barcode scanners are diverse and can vary depending on the industry and individual requirements. It is important to understand the specific applications and functions to select the best scanner for your needs.
Source: freepik.com
Factors to consider when choosing a barcode scanner
Choosing the right barcode scanner is crucial for achieving the desired performance and functionality. There are various factors to consider when selecting a barcode scanner. Here are some important considerations:
Barcode Type: There are various types of barcodes, including EAN-13, UPC, QR Code, and Data Matrix. Make sure that the scanner supports the barcode types you are using.
Scan distance: Depending on the application area, the scan distance can vary. For instance, if you need to scan barcodes in a warehouse, you might require a scanner with a greater range.
Connection method: Barcode scanners can be connected to other devices through various connection methods such as USB, Bluetooth, or Wi-Fi. You should ensure that the scanner has the connection method suitable for your requirements.
Robustness: Depending on the work environment, you may need a durable barcode scanner that can withstand drops and impacts. Check the scanner's protection class to ensure it meets the requirements of your work environment.
It is important to know your individual requirements and to consider these factors when selecting a barcode scanner. A careful evaluation can help you find the scanner that best suits your needs.
Source: freepik.com
Troubleshooting common issues with barcode scanners
Although barcode scanners are generally reliable, issues can occasionally arise. Here are some common problems that can occur with barcode scanners, and possible solutions:
Poor scanning performance: If the scanner is having trouble recognizing or scanning barcodes, this may be due to a dirty lens or incorrect configuration. Clean the lens and check the configuration settings to ensure they are properly adjusted.
Connection issues: If the scanner cannot connect to your device, check the connection method and ensure that the device is properly connected to the scanner. You may also need to update the driver or reconfigure the connection.
Lack of durability: If the barcode scanner is sensitive to shocks or falls, it may indicate a lack of robustness of the device. Check the protection class of the scanner and make sure it meets the requirements of your work environment.
Lack of Compatibility: Sometimes a barcode scanner may not be compatible with certain devices or software solutions. Check the scanner's compatibility with your existing devices and ensure it meets your requirements.
If you are having issues with your barcode scanner, you can usually consult the manufacturer's manual or contact technical support for assistance with troubleshooting. In most cases, however, problems with barcode scanners can be avoided through careful maintenance and regular updates.
New laws on food waste in Spain
Spain has recently passed a groundbreaking law to combat food waste. This law requires all actors in the food chain, from producers to retailers, to implement specific plans to prevent food loss.
Key provisions of the law:
Obligation to donate surplus food: Supermarkets with a floor space of more than 1,300 square meters are now required to form partnerships with non-profit organizations to donate surplus food that is still fit for consumption. These donations are exempt from value-added tax.
Offer of packaging for leftover food: Restaurants and bars are required to provide their guests with free, reusable or recyclable packaging so that they can take home uneaten food. The aim is to raise consumer awareness of food waste and encourage them to take leftovers with them.
Promotion of the sale of products with approaching expiration dates: Retailers should offer products that are nearing their expiration date or have aesthetic defects at reduced prices to encourage their sale and reduce waste.
Hierarchy of priorities for dealing with surplus food: The law establishes an order for handling surplus food. Priority is given to human consumption through donations. If this is not possible, the food should be used for the production of processed products. The last options include using it as animal feed or for energy generation.
Sanctions for violations:
Companies that violate the provisions of the law can expect fines ranging from 2,000 to 500,000 euros.
Critique and Outlook:
While the law is considered an important step in the fight against food waste in Europe, there is also criticism. Some voices argue that the strict framework of sanctions could disproportionately burden companies and that the law does not sufficiently address the role of consumers, who are responsible for a significant portion of food waste.
Nevertheless, the law is seen as a significant advancement in reducing food waste and promoting a more sustainable awareness in society.
Join in and reduce food waste! 🌱📲
Spain's new law demonstrates: Sustainability starts in the pantry! With the Speisekammer App you can keep track of your groceries, plan meals efficiently, and avoid unnecessary waste.
👉 Download the app now and join the movement for less waste and more conscious consumption! 💚 Try it now!
Get the most out of your Smantry App: Activate these premium features!
🖼️ Private photos for your articles
Make your inventory management visual! With the feature "Upload Your Own Images" you can add a photo to each item – for example, of the packaging, the jar, or the portion in the freezer. This is especially helpful if you share with others in a community or if you want to visually remember your supplies better.
Activation: Open app → Account (last tab in the mobile app) → Settings → "Activate Personal Pictures"
🔍 Target nutritional information
The app automatically displays calorie and nutritional information – super convenient when you're shopping or eating mindfully. Don't need this info right now or want a cleaner view? You can also simply hide the display!
Control:Profile → Account Settings → Enable “Hide Nutritional Information”, to hide it.
💶 Prices & Expenses at a Glance
If you want to know how much you spend on which item or how much money is lying dormant in your pantry, the Price Entry feature can help you. With it, you can plan your shopping even better and even track your budget.
Activation: Open app → Account (last tab in the mobile app) → Settings → “Enable price input”
💡 Prepper Mode: Even More Control
The Prepper Mode has been introduced for those who really want to keep track of everything – including minimum quantities, emergency supplies, and individual notes for serious situations. It's also useful if you just want to make sure you never run out of anything important.
Activation: Open app → Account (last tab in the mobile app) → Settings → “Show Prepper Information”
Here's how you can find your account settings
In the mobile app you can find the settings easily in the last tab on the far right (Account). In the web app click on Account → "Settings".
All mentioned features are part of the Premium-Version. If you don't have a premium license yet, feel free to check in the app or on app.speisekammer.app/upgrade – there's also a family license available!
✨ Conclusion: You have more options than you think. Activate the hidden premium features now and get the most out of your Smantry app. Because smart inventory management starts with the right tools.
If you have any questions about activation, feel free to contact support or check out our Help Center. And if you have feature requests – we always welcome your feedback!
Never forget leftovers again: Soon you'll be able to mark opened products 🧃✨
💡 The new feature: Mark products as "opened"
With the upcoming update, you will soon be able to specify in the Pantry App when a product was opened. This way, you always keep track:
- What is already open
- Since when it has been open
This is particularly useful for fresh or perishable food items, but also for sauces, canned goods, spreads, or snacks.
🔔 Reminders included
Of course, if you wish, you will also be automatically reminded, when an opened product should soon be consumed – all in keeping with the motto: Use rather than waste.
🎯 Why this is important
Food waste often doesn't occur while shopping – but at home, in everyday life. If we know better what is open and should be consumed, it becomes easier to make the right decisions. And that's exactly what the Pantry App wants to support you with even better with the new feature.
🛠 When will it be time?
We are currently working hard on the implementation – the feature is expected to be rolled out in the next update. So you will be able to test it very soon yourself.
If you want to participate in the testing or have feedback, feel free to write to us in support. We look forward to your ideas!
With the Pantry App, stockpiling becomes not only more sustainable, but also easier – step by step.
Stay tuned – it's getting exciting! 💚
🌍 Small ideas – big impact: These companies help you save food in everyday life
🍏 Foodsi (Poland)
This mobile app connects users with restaurants, bakeries and cafés offering surplus food at reduced prices—especially valuable in Polish cities like Warsaw or Kraków.
🛍️ OLIO – Share Surplus Food with Neighbors
OLIO connects neighbors and local businesses to share surplus food instead of throwing it away. Users can offer or request free food via the app — reducing waste and building community.
🍌 Imperfect Foods – Selling "Ugly" but Edible Food
This U.S.-based grocery delivery service rescues "imperfect" produce and surplus goods that major supermarkets reject due to appearance or overstocking — and delivers them directly to your door.
🔗 https://www.imperfectfoods.com
📦 Dispatch Goods – Reusable Packaging for Takeout
Dispatch Goods partners with restaurants to replace single-use containers with reusable packaging. This reduces packaging waste — and their system tracks and collects the containers for reuse.
🔗 https://www.dispatchgoods.com
🥬 Fresh.Land – Farm-to-Consumer to Prevent Waste (DK)
Fresh.Land shortens the supply chain by connecting consumers directly with farmers. This means fresher produce, longer shelf life, and fewer losses due to long storage or transport.
🧊 ColdHubs – Solar-Powered Cold Storage in Nigeria
ColdHubs installs solar-powered cold rooms for small farmers and markets to store perishable foods. This innovation significantly extends shelf life and reduces spoilage in hot climates.
🧃 Winnow – AI to Track Food Waste in Commercial Kitchens
Winnow’s smart scales and AI help restaurants and hotels measure and reduce food waste. By showing how much food is wasted and why, kitchens can adapt their behavior.
🔗 https://www.winnowsolutions.com
Why this matters for you
When you use the Smantry app, you can track and manage rescued food items in your pantry – whether they came from Foodsi, Karma, or another initiative. We’re building integrations to log these products, set reminders, and reduce waste in your household.
Know any other businesses doing this well?
We’d love to hear about them! Email your favourites to kira@mantry.com or write us in the chat or social media. Your tip might inspire others and be featured next. 🌿