The working principle of the thermal printer is that a semiconductor heating element is installed on the printing head, and the required pattern can be printed after the printing head heats up and touches the thermal printing paper, and the principle is similar to that of the thermal fax machine. The image is created by heating and generating a chemical reaction in the film. This thermal printer chemical reaction is carried out at a certain temperature. High temperature will speed up this chemical reaction. When working for a period of time, the thermal printer's print head will attach a lot of dust or ink, affecting the printer's print. The cleaning swabs we produce are soaked in alcohol and can be wiped right and left directly on the printer's printhead until there is no stain.

When cleaning the print head, be sure to remember not to use hard objects or other cleaning cloth to clean, otherwise it will cause the print head failure or affect the use.

For street cleaning of printers, we recommend using Pre-saturated cleaning swab and Self-saturated cleaning swab, which not only eliminates the time for soaking cotton swabs, but also the cleaning effect has been recognized.