Javo
- Jun 28
- 6 min read

Interview with James, IT Expert at Javik Laser Ltd.

In this interview, Javo sits down with James, an IT expert at Javik Laser Ltd, to discuss the fascinating world of QR codes. They explore the history, functionality, and practical applications of this ubiquitous technology, including how Javik Laser uses QR codes to streamline their machine maintenance processes.

What is a QR code and how does it work?

QR codes are everywhere these days, from restaurant menus to event tickets. But what exactly are they, and how do they function?

Origins of the QR Code.

QR stands for Quick Response. These codes were invented in 1994 by Masahiro Hara in Japan. Initially, they were used to track vehicles during manufacturing processes. Their ability to store a large amount of data made them ideal for this purpose.

Structure and Functionality.

A QR code consists of a series of shapes, blocks, and dots arranged in a square grid. These elements encode information that can be read by a QR code scanner or a smartphone camera. When scanned, the QR code directs the user to a specific action, such as opening a URL, displaying text, or adding a contact to your phone.

Data Encoding.

The QR code's design allows it to store different types of data, including numeric, alphanumeric, byte/binary, and kanji. This versatility makes QR codes highly functional and adaptable for various uses, from marketing to inventory management.

Reading a QR Code.

When you scan a QR code with your smartphone, the camera interprets the pattern of shapes and converts it into a string of data. This data is then processed to perform the encoded action, such as opening a website or displaying a message.

Are we going to run out of QR codes?

With the proliferation of QR codes in our daily lives, it's natural to wonder if we'll ever run out of them. The short answer is no.

Vast Combinatorial Possibilities.

The number of possible QR codes is astronomically high. Each QR code is made up of a grid that can vary in size, and each cell in the grid can be either black or white. This results in an enormous number of possible combinations.

Comparisons with Other Unique Identifiers.

To put it into perspective, consider the number of unique IP addresses available with IPv6, which is 2^128. The number of possible QR code combinations is even higher, ensuring that we have more than enough for any conceivable use.

Practical Implications.

In practical terms, this means that you could generate a unique QR code for every photograph taken across the globe and still have billions of combinations left. This ensures that QR codes remain a viable and scalable solution for various applications in the foreseeable future.

Conclusion.

Given the vast number of possible QR code combinations, running out of QR codes is not a concern. This makes them a robust and flexible tool for a wide range of applications, from marketing campaigns to industrial processes.

What are the limitations on QR code size for engraving?

When it comes to engraving QR codes, size definitely matters. There are specific limitations to ensure the code remains readable and functional.

Minimum Size for Readability.

For engraving purposes, we wouldn't engrave a QR code smaller than 25 millimetres. This size is perfectly reasonable and quickly readable. Anything smaller, and the code's readability can significantly diminish.

Alternative Solutions for Smaller Sizes.

If we need to go below 25 millimeters, we switch from QR codes to DMC codes. DMC codes are more suitable for smaller engravings and will be discussed in a future article.

Are QR codes secure?

Security is a common concern when it comes to QR codes. However, the context in which they are used plays a significant role in their safety.

General Usage.

In most everyday situations, such as in pubs or museums, QR codes are perfectly safe to scan. These settings are generally secure, and the QR codes are usually trustworthy.

Precautions to Take.

We advise against scanning QR codes that someone has printed and stuck in random places. Always be cautious and ensure the source is reliable before scanning

How does Javik Laser use QR codes for machine maintenance?

At Javik Laser, we have integrated QR codes into our machine maintenance processes to streamline and simplify our workflows.

We start by creating a unique QR code for each machine in our facility. This QR code is engraved directly onto the machine, ensuring it is always easily accessible. When a maintenance technician needs to perform a check or service, they simply scan the QR code with their smartphone.

Upon scanning, the QR code directs the technician to an online form specifically designed for that machine. This form includes fields for the date, the technician's name, the make and model of the machine, and its serial number. The form also contains a checklist of maintenance tasks that need to be performed, such as cleaning certain parts or checking for specific issues.

If any issues are found during the maintenance check, they can be reported directly through the form. This information is then automatically uploaded to our online database, where it can be reviewed by our maintenance team.

Each week or month, depending on the maintenance schedule, we pull down the data collected from these forms to review the status of our machines. Any reported issues are addressed promptly to ensure our equipment is always in optimal working condition.

This process not only makes it easier for our technicians to perform their tasks but also ensures that we have a comprehensive record of all maintenance activities. This helps us keep track of the condition of our machines and identify any recurring issues that may need further attention.

Overall, using QR codes for machine maintenance has significantly improved our efficiency and accuracy, allowing us to provide better service to our customers.

What are the benefits of using QR codes for machine maintenance?

The use of QR codes for machine maintenance offers numerous benefits that enhance the efficiency and effectiveness of our processes at Javik Laser.

Firstly, QR codes provide a quick and easy way to access important information. By simply scanning the code, technicians can instantly access the maintenance form specific to the machine they are working on. This eliminates the need to search for paper records or log into a computer, saving valuable time.

Secondly, QR codes help ensure accuracy in our maintenance records. The online forms are designed to capture all necessary information, reducing the risk of errors or omissions. This is particularly important for tracking issues and ensuring they are addressed promptly.

Another significant benefit is the ability to easily track and analyze maintenance data. With all information stored in an online database, we can quickly generate reports and identify trends. This helps us proactively address potential issues before they become major problems, improving the overall reliability of our machines.

Additionally, using QR codes for maintenance is environmentally friendly. By moving away from paper-based records, we reduce our paper consumption and contribute to a more sustainable operation. This is an important consideration for our company as we strive to minimize our environmental impact.

Moreover, the integration of QR codes into our maintenance processes fosters a more organized and systematic approach. With all data centralized and easily accessible, our maintenance team can work more efficiently and effectively. This not only improves our internal operations but also enhances the quality of service we provide to our customers.

Lastly, QR codes offer a level of flexibility that is difficult to achieve with traditional methods. They can be easily updated or modified as needed, ensuring that our maintenance processes can adapt to changing requirements. This makes them a versatile tool that can support our operations now and in the future.

Overall, the benefits of using QR codes for machine maintenance are clear. They improve efficiency, accuracy, and sustainability while providing valuable insights into the condition of our equipment. This allows us to maintain our high standards of quality and service, ensuring the satisfaction of our customers.