How to solve the ghosting problem of self-adhesive coated paper printing?

The problem of ghosting in self-adhesive coated paper printing may be caused by a variety of factors. Here are some possible solutions to identify and address different causes:

1. Check and adjust printer Settings

Print concentration: Excessive print concentration may result in ghosting. Try lowering the print concentration setting to find a suitable value that is both clear and ghosting free.

Nozzle height and number: For large format printers, check that the nozzle height and number Settings are appropriate to ensure that the ink is sprayed evenly.

Print speed: Adjusting the print speed and sometimes reducing the speed can improve print quality and reduce ghosting.

2. Clean and maintain the printer

Clean the print head: The ink nozzle on the print head may be blocked or contaminated, resulting in uneven ink spray. Use the cleaning function that comes with the printer or follow the manufacturer's instructions to clean the print head.

Calibrate the printer: The printer may need to be calibrated to ensure that parts such as print heads, conveyor belts, etc. are aligned accurately during the printing process. Check the printer manual to learn how to perform calibration operations.

3. Check the printed materials

Paper quality: Make sure to use high quality, flat coated paper to avoid stains or damage to the surface of the paper, which can lead to double printing.

Paper handling: Before printing, ensure that the paper is properly placed to avoid curling or folding.

4. Check the cartridge and ink

Cartridge quality: Use certified cartridges and avoid using inferior cartridges, as inferior cartridges can cause uneven ink distribution or inconsistent color, which can produce ginning.

Ink setting: Adjusting the amount of ink in the print quality setting and appropriately reducing the amount of ink can sometimes improve the print effect and reduce ginning.

5. Mechanical parts inspection

Drive parts: Check the printer's drive parts (such as rollers, conveyor belts, etc.) for wear or loose, problems with these parts can also cause printing glint.

Pressure adjustment: For certain types of printers, such as those involving rollers, check that the pressure between rollers is appropriate. Excessive pressure may cause the blanket to deform, resulting in double shadows.

6. Contact technical support

If the above methods do not solve the problem, it is recommended to contact the printer manufacturer's technical support team or professional printer maintenance personnel. They can provide more professional guidance and solutions.

Sum up

To solve the problem of printing ghosting on self-adhesive coated paper, it is necessary to start from many aspects, including printer setup, cleaning and maintenance, printing materials, ink cartridges and inks, and mechanical parts inspection. By going through and addressing these possible causes one by one, you can usually find and fix the problem. If the problem persists, seeking professional technical support will be a necessary step.