How to Extend The Life of your printer head?

• The print head is the most fragile and fragile device in a printer.
• For best results, clean the print head every time you use a roll of ribbon or a roll of thermal paper.
• You can use a cotton swab soaked in 70% alcohol, first turn off the printer and turn on the print head.
• Use a small amount of cotton cloth to brush the mechanical part of the printer, or gently blow away dust (such as rollers, paper tape sensors, and print heads). 
• Use a cotton swab with alcohol to press it on the print head and wipe it from the bottom to the bottom. Then rotate the roller and wipe it with the roller. Do not use the cotton swab when it is dirty.