When choosing a coding machine, attention should be paid to the following points:

1. The viscosity of ink consumables does not meet the printing standards

2. The charging value setting of the inkjet printer is inaccurate.

3. The inkjet printer has been working in a dusty environment for a long time, resulting in nozzle blockage.

4. Ink has weak resistance to high and low temperatures and cannot work in low or high temperature environments.

Before shutting down the inkjet printer, the nozzle must be cleaned and placed on a nozzle cover with a moisturizing sponge pad. This can ensure the condition and quality of the nozzle and extend its service life to a certain extent.