Inkjet coding machines are used to print dates, lot numbers, barcodes and other information on the production line. However, from time to time, ink leakage problems may occur. This problem both reduces print quality and negatively affects machine performance. So, why does an inkjet coding machine leak ink? In this guide, we will cover the most common causes and solutions.
1. Nozzle Blockage or Contamination
Cause: Over time, ink jet nozzles can become clogged with dust, ink drying or foreign matter. This can cause uneven ink flow or dripping.
Solution:
- Clean the nozzle regularly.
- Maintain using cleaning fluids recommended by the manufacturer.
- If you will not be using the machine for a long period of time, clean and close the nozzles.
2. Imbalance in Ink Pressure Level
Reason: In inkjet coding machines, ink is sprayed with a certain pressure. If the pressure is too low or too high, the ink flows unevenly and dripping occurs.
Solution:
- Check the ink pressure values specified by the machine manufacturer.
- Adjust the pressure regulator regularly.
- Check the ink line for blockages.
3. Choosing the Wrong Ink Type
Reason: If the ink used is not in accordance with the machine’s specifications, bleeding or drying problems may occur.
Solution:
- Use only the types of ink recommended by the manufacturer.
- Check that the ink is suitable for temperature and humidity conditions.
- Keep track of the expiration date of the ink cartridges.
4. Air Bubbles or Leaks
Reason: If air bubbles form in the ink supply line or there are leaks at the hose connections, ink flows unevenly and dripping occurs.
Solution:
- Close the ink hoses and connection points tightly.
- Ventilate the ink system properly to remove air bubbles.
- Check the hoses for cracks or deformation.
5. Environmental Factors (Temperature and Humidity)
Cause: Extremely hot or cold environments can affect the fluidity of the ink, leading to dripping or running problems.
Solution:
- Keep the temperature and humidity of the working environment within the range specified by the manufacturer.
- If the environment is too dry, optimize the humidity level.
- If the environment is very hot, position the machine in a cool area.
6. Electrical or Sensor Faults
Cause: Malfunctions in sensors or electronic components can cause the inkjet system to operate incorrectly.
Solution:
- Check sensors and electrical connections regularly.
- Replace defective components according to the manufacturer’s instructions.
- Troubleshoot possible errors by updating the machine’s software.
7. Contamination or Blockage of Filters and Hoses
Cause: The filters in the ink supply system can become dirty and clogged over time. This can cause the ink to flow unevenly.
Solution:
- Clean or replace filters regularly.
- Check hoses frequently and replace as necessary.
- Prevent contamination by keeping the ink tank clean.
Conclusion
The problem of ink leaking in inkjet coding machines is usually caused by reasons such as lack of maintenance or incorrect ink usage. You can prevent these problems with regular cleaning, correct ink selection and proper working conditions. If the problem persists despite applying the above solutions, you may need to seek technical support.
