FAQ

What is an ink coding printer and how is it used in industry?

An ink coding printer is an industrial device used to print variable data—such as expiration dates, batch numbers, barcodes, and QR codes—directly onto products and packaging for traceability, compliance, and brand protection.

In smart manufacturing, Thermal Inkjet (TIJ) printers are widely adopted due to their advantages:

 

  • High-resolution printing for clear, readable codes at high speed
  • Maintenance-free cartridge design with no complex servicing or makeup fluids
  • Wide material compatibility, including paper, plastic, glass, and metal
  • Easy integration into conveyor and automated packaging systems for reliable operation
What is a Thermal Inkjet (TIJ) printer?

A Thermal Inkjet (TIJ) printer uses heat to generate precise ink droplets for high-quality digital printing. Compared to traditional coding systems, TIJ delivers high-resolution output (up to 600 dpi), ensuring clear and reliable printing of barcodes, QR codes, and date codes.

 

It is widely used in industrial applications due to its clean, maintenance-free design, fast start/stop operation, and consistent print quality, making it well-suited for high-speed production lines.

Why choose a TIJ ink coding printer over CIJ?

 While both technologies are used for industrial marking, Thermal Inkjet (TIJ) is increasingly preferred in modern production lines for its reliability and print quality. Key advantages over CIJ include:

 

  • 300–600 dpi high-resolution printing for clear QR codes and graphics
  • Zero-maintenance cartridge design with no pumps or filters
  • Cleaner, low-VOC operation suitable for food and pharma environments
  • Lower total cost of ownership (TCO) with fewer consumables and repairs
  • Instant start-up with no cleaning or preparation downtime
What industries use TIJ inkjet coding printers?

 Thermal Inkjet (TIJ) printers are widely used for high-speed, high-resolution, and low-maintenance coding across industries:

 

  • Food & Beverage
    Expiry dates, batch codes, QR codes on packaging
  • Pharmaceuticals & Medical Devices
    High-resolution 2D codes for traceability and compliance
  • Cosmetics & Personal Care
    Clear, smudge-free printing on bottles and packaging
  • Electronics & Semiconductors
    Precise serial numbers and traceability marking
  • Logistics & Warehousing
    Barcodes for shipping and supply chain tracking
Can a TIJ printer print barcodes and QR codes?

Yes. Thermal Inkjet (TIJ) is highly reliable for printing 1D and 2D codes. With up to 600 dpi resolution, it produces clear, high-contrast codes for fast scanning.

TIJ supports:

 

  • 1D barcodes (UPC, EAN, Code 128, ITF-14)

  • 2D codes (QR Code, DataMatrix)

  • GS1 formats (GS1-128, GS1 DataMatrix)

  • Variable data printing for serialization and traceability

 

 

Compared with CIJ, TIJ offers higher resolution and better droplet precision, improving readability—especially for small or complex codes.

What is the advantage of TIJ in date coding applications?

For date coding applications, TIJ printers offer several key advantages:

 

  • Instant start and stop operation with no warm-up time

  • Maintenance-free performance with no daily cleaning required

  • Consistent high-resolution print quality for clear and readable codes

  • Easy integration into existing production and packaging lines

  • Reliable printing on various packaging materials at high production speeds

     

These advantages make TIJ an ideal solution for expiry date printing, batch coding, and traceability applications in food, beverage, pharmaceutical, and packaging industries.

How does TIJ reduce operating cost?

Compared to other ink coding systems, TIJ helps reduce operating costs by:

 

  • Eliminating the need for solvents and cleaning fluids

  • Minimizing maintenance and production downtime

  • Simplifying operation through quick cartridge replacement

  • Reducing service and spare-part requirements

     

In addition, bulk ink supply systems can further lower ink consumption costs by 20–40%, making TIJ a highly efficient and cost-effective solution for industrial coding applications.

What is industrial inkjet coding and marking?

Coding and marking refers to the process of printing variable information—such as dates, batch numbers, barcodes, QR codes, and serial numbers—directly onto products or packaging during production.

 

Industrial inkjet printers, especially Thermal Inkjet (TIJ) systems, are widely used because they offer high-speed operation, flexible integration, and high-resolution print quality. TIJ technology also supports reliable printing on various materials, making it ideal for traceability, compliance, and automated manufacturing applications.

Why choose Dotjet TIJ ink coding solutions?

Dotjet provides:

 

  • Advanced Thermal Inkjet printer systems
  • Cost-saving solutions like bulk ink systems
  • Remote control and monitoring (CMD system)
  • Reliable industrial design and global support

Dotjet helps customers achieve efficient, high-quality, and cost-effective coding solutions.

To highlight the unique value of Dotjet’s solutions, this Q&A focuses on their proprietary technology, such as the CMD system and their specialized industrial hardware, making it a powerful tool for sales and technical support.

Is TIJ suitable for smart factory and automation?

Yes. Modern Thermal Inkjet (TIJ) printers are designed for Industry 4.0 smart factories, enabling seamless integration with automated production systems.

Key advantages include:

 

    • ERP/MES/WMS integration for automatic data retrieval

    • High-speed variable data printing (VDP) for unique codes and traceability

    • Remote monitoring via Ethernet, Wi-Fi, and RS232/485

    • Real-time alerts, ink tracking, and template management

    • PLC and sensor synchronization for accurate high-speed printing

       

With strong connectivity and automation, TIJ delivers a reliable solution for smart manufacturing.