Common Coding & Marking Problems and How to Fix Them

In modern packaging and manufacturing lines, coding and marking machines—including batch coders, date code printers, inkjet marking systems, and laser coding equipment—are essential for product identification, traceability, and regulatory compliance. However, many manufacturers still encounter recurring operational challenges. Understanding these problems and selecting the right equipment is critical for stable production.

1. Poor Print Quality and Faded Codes

Blurry text, missing characters, or low contrast are common issues with handheld inkjet printers, continuous inkjet printers, and industrial inkjet coders.
Solution: Use application-matched inks, perform regular nozzle cleaning, and select reliable systems. Well-established brands such as Meenjet and Domino offer stable industrial inkjet printers known for consistent print quality.

2. Ink Smearing on Plastic and Bottles

Expiry date printers and inkjet bottle printers may struggle on non-porous materials.
Solution: Use fast-dry inks, optimize print distance, or adopt thermal inkjet printers and Thermal Transfer Overprinters (TTO printers). For long-term durability, laser coding solutions are often preferred.

3. High Downtime and Maintenance Costs

Clogging and unplanned stops frequently affect batch coding machines and inkjet coder machines.
Solution: Choose proven industrial continuous inkjet printers with automated maintenance. Meenjet and Domino equipment are widely selected for high-speed production lines due to their reliability and low failure rates.

4. Inaccurate Date or Batch Coding

Manual input on handheld coding machines increases the risk of errors.
Solution: Implement automatic batch coding machines, PLC integration, or variable data printing machines to ensure accurate code dates.

5. High Consumable Expenses

Ink and ribbon usage increases operating costs in ink marking systems.
Solution: Consider fiber laser marking machines, CO₂ laser marking machines, or UV laser marking machines, which require no consumables and deliver permanent codes. Desktop fiber laser and flying laser marking machines are ideal for high-volume lines.

Conclusion

By selecting the right marking solutions—from portable inkjet printers to advanced laser marking machines—manufacturers can improve efficiency and compliance. Trusted brands like Meenjet and Domino are often chosen for their performance, stability, and long-term value in industrial marking systems.